2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
4 * Copyright (c) 2004-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
6 * Copyright (c) 2010 David Gibson, IBM Corporation.
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #include "qemu/osdep.h"
28 #include "qemu-common.h"
29 #include "qapi/error.h"
30 #include "qapi/visitor.h"
31 #include "sysemu/sysemu.h"
32 #include "sysemu/hostmem.h"
33 #include "sysemu/numa.h"
34 #include "sysemu/qtest.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
38 #include "hw/fw-path-provider.h"
41 #include "sysemu/device_tree.h"
42 #include "sysemu/cpus.h"
43 #include "sysemu/hw_accel.h"
45 #include "migration/misc.h"
46 #include "migration/qemu-file-types.h"
47 #include "migration/global_state.h"
48 #include "migration/register.h"
49 #include "migration/blocker.h"
50 #include "mmu-hash64.h"
51 #include "mmu-book3s-v3.h"
52 #include "cpu-models.h"
53 #include "hw/core/cpu.h"
55 #include "hw/boards.h"
56 #include "hw/ppc/ppc.h"
57 #include "hw/loader.h"
59 #include "hw/ppc/fdt.h"
60 #include "hw/ppc/spapr.h"
61 #include "hw/ppc/spapr_vio.h"
62 #include "hw/qdev-properties.h"
63 #include "hw/pci-host/spapr.h"
64 #include "hw/pci/msi.h"
66 #include "hw/pci/pci.h"
67 #include "hw/scsi/scsi.h"
68 #include "hw/virtio/virtio-scsi.h"
69 #include "hw/virtio/vhost-scsi-common.h"
71 #include "exec/address-spaces.h"
72 #include "exec/ram_addr.h"
74 #include "qemu/config-file.h"
75 #include "qemu/error-report.h"
78 #include "hw/intc/intc.h"
80 #include "hw/ppc/spapr_cpu_core.h"
81 #include "hw/mem/memory-device.h"
82 #include "hw/ppc/spapr_tpm_proxy.h"
83 #include "hw/ppc/spapr_nvdimm.h"
85 #include "monitor/monitor.h"
89 /* SLOF memory layout:
91 * SLOF raw image loaded at 0, copies its romfs right below the flat
92 * device-tree, then position SLOF itself 31M below that
94 * So we set FW_OVERHEAD to 40MB which should account for all of that
97 * We load our kernel at 4M, leaving space for SLOF initial image
99 #define FDT_MAX_SIZE 0x100000
100 #define RTAS_MAX_ADDR 0x80000000 /* RTAS must stay below that */
101 #define FW_MAX_SIZE 0x400000
102 #define FW_FILE_NAME "slof.bin"
103 #define FW_OVERHEAD 0x2800000
104 #define KERNEL_LOAD_ADDR FW_MAX_SIZE
106 #define MIN_RMA_SLOF (128 * MiB)
108 #define PHANDLE_INTC 0x00001111
110 /* These two functions implement the VCPU id numbering: one to compute them
111 * all and one to identify thread 0 of a VCORE. Any change to the first one
112 * is likely to have an impact on the second one, so let's keep them close.
114 static int spapr_vcpu_id(SpaprMachineState
*spapr
, int cpu_index
)
116 MachineState
*ms
= MACHINE(spapr
);
117 unsigned int smp_threads
= ms
->smp
.threads
;
121 (cpu_index
/ smp_threads
) * spapr
->vsmt
+ cpu_index
% smp_threads
;
123 static bool spapr_is_thread0_in_vcore(SpaprMachineState
*spapr
,
127 return spapr_get_vcpu_id(cpu
) % spapr
->vsmt
== 0;
130 static bool pre_2_10_vmstate_dummy_icp_needed(void *opaque
)
132 /* Dummy entries correspond to unused ICPState objects in older QEMUs,
133 * and newer QEMUs don't even have them. In both cases, we don't want
134 * to send anything on the wire.
139 static const VMStateDescription pre_2_10_vmstate_dummy_icp
= {
140 .name
= "icp/server",
142 .minimum_version_id
= 1,
143 .needed
= pre_2_10_vmstate_dummy_icp_needed
,
144 .fields
= (VMStateField
[]) {
145 VMSTATE_UNUSED(4), /* uint32_t xirr */
146 VMSTATE_UNUSED(1), /* uint8_t pending_priority */
147 VMSTATE_UNUSED(1), /* uint8_t mfrr */
148 VMSTATE_END_OF_LIST()
152 static void pre_2_10_vmstate_register_dummy_icp(int i
)
154 vmstate_register(NULL
, i
, &pre_2_10_vmstate_dummy_icp
,
155 (void *)(uintptr_t) i
);
158 static void pre_2_10_vmstate_unregister_dummy_icp(int i
)
160 vmstate_unregister(NULL
, &pre_2_10_vmstate_dummy_icp
,
161 (void *)(uintptr_t) i
);
164 int spapr_max_server_number(SpaprMachineState
*spapr
)
166 MachineState
*ms
= MACHINE(spapr
);
169 return DIV_ROUND_UP(ms
->smp
.max_cpus
* spapr
->vsmt
, ms
->smp
.threads
);
172 static int spapr_fixup_cpu_smt_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
,
176 uint32_t servers_prop
[smt_threads
];
177 uint32_t gservers_prop
[smt_threads
* 2];
178 int index
= spapr_get_vcpu_id(cpu
);
180 if (cpu
->compat_pvr
) {
181 ret
= fdt_setprop_cell(fdt
, offset
, "cpu-version", cpu
->compat_pvr
);
187 /* Build interrupt servers and gservers properties */
188 for (i
= 0; i
< smt_threads
; i
++) {
189 servers_prop
[i
] = cpu_to_be32(index
+ i
);
190 /* Hack, direct the group queues back to cpu 0 */
191 gservers_prop
[i
*2] = cpu_to_be32(index
+ i
);
192 gservers_prop
[i
*2 + 1] = 0;
194 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-server#s",
195 servers_prop
, sizeof(servers_prop
));
199 ret
= fdt_setprop(fdt
, offset
, "ibm,ppc-interrupt-gserver#s",
200 gservers_prop
, sizeof(gservers_prop
));
205 static int spapr_fixup_cpu_numa_dt(void *fdt
, int offset
, PowerPCCPU
*cpu
)
207 int index
= spapr_get_vcpu_id(cpu
);
208 uint32_t associativity
[] = {cpu_to_be32(0x5),
212 cpu_to_be32(cpu
->node_id
),
215 /* Advertise NUMA via ibm,associativity */
216 return fdt_setprop(fdt
, offset
, "ibm,associativity", associativity
,
217 sizeof(associativity
));
220 static void spapr_dt_pa_features(SpaprMachineState
*spapr
,
222 void *fdt
, int offset
)
224 uint8_t pa_features_206
[] = { 6, 0,
225 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 };
226 uint8_t pa_features_207
[] = { 24, 0,
227 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0,
228 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
229 0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
230 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 };
231 uint8_t pa_features_300
[] = { 66, 0,
232 /* 0: MMU|FPU|SLB|RUN|DABR|NX, 1: fri[nzpm]|DABRX|SPRG3|SLB0|PP110 */
233 /* 2: VPM|DS205|PPR|DS202|DS206, 3: LSD|URG, SSO, 5: LE|CFAR|EB|LSQ */
234 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, /* 0 - 5 */
236 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, /* 6 - 11 */
238 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, /* 12 - 17 */
239 /* 18: Vec. Scalar, 20: Vec. XOR, 22: HTM */
240 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 18 - 23 */
241 /* 24: Ext. Dec, 26: 64 bit ftrs, 28: PM ftrs */
242 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */
243 /* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */
244 0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */
245 /* 36: SPR SO, 38: Copy/Paste, 40: Radix MMU */
246 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 36 - 41 */
247 /* 42: PM, 44: PC RA, 46: SC vec'd */
248 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */
249 /* 48: SIMD, 50: QP BFP, 52: String */
250 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 48 - 53 */
251 /* 54: DecFP, 56: DecI, 58: SHA */
252 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 54 - 59 */
253 /* 60: NM atomic, 62: RNG */
254 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 60 - 65 */
256 uint8_t *pa_features
= NULL
;
259 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_2_06
, 0, cpu
->compat_pvr
)) {
260 pa_features
= pa_features_206
;
261 pa_size
= sizeof(pa_features_206
);
263 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_2_07
, 0, cpu
->compat_pvr
)) {
264 pa_features
= pa_features_207
;
265 pa_size
= sizeof(pa_features_207
);
267 if (ppc_check_compat(cpu
, CPU_POWERPC_LOGICAL_3_00
, 0, cpu
->compat_pvr
)) {
268 pa_features
= pa_features_300
;
269 pa_size
= sizeof(pa_features_300
);
275 if (ppc_hash64_has(cpu
, PPC_HASH64_CI_LARGEPAGE
)) {
277 * Note: we keep CI large pages off by default because a 64K capable
278 * guest provisioned with large pages might otherwise try to map a qemu
279 * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages
280 * even if that qemu runs on a 4k host.
281 * We dd this bit back here if we are confident this is not an issue
283 pa_features
[3] |= 0x20;
285 if ((spapr_get_cap(spapr
, SPAPR_CAP_HTM
) != 0) && pa_size
> 24) {
286 pa_features
[24] |= 0x80; /* Transactional memory support */
288 if (spapr
->cas_pre_isa3_guest
&& pa_size
> 40) {
289 /* Workaround for broken kernels that attempt (guest) radix
290 * mode when they can't handle it, if they see the radix bit set
291 * in pa-features. So hide it from them. */
292 pa_features
[40 + 2] &= ~0x80; /* Radix MMU */
295 _FDT((fdt_setprop(fdt
, offset
, "ibm,pa-features", pa_features
, pa_size
)));
298 static hwaddr
spapr_node0_size(MachineState
*machine
)
300 if (machine
->numa_state
->num_nodes
) {
302 for (i
= 0; i
< machine
->numa_state
->num_nodes
; ++i
) {
303 if (machine
->numa_state
->nodes
[i
].node_mem
) {
304 return MIN(pow2floor(machine
->numa_state
->nodes
[i
].node_mem
),
309 return machine
->ram_size
;
312 static void add_str(GString
*s
, const gchar
*s1
)
314 g_string_append_len(s
, s1
, strlen(s1
) + 1);
317 static int spapr_dt_memory_node(void *fdt
, int nodeid
, hwaddr start
,
320 uint32_t associativity
[] = {
321 cpu_to_be32(0x4), /* length */
322 cpu_to_be32(0x0), cpu_to_be32(0x0),
323 cpu_to_be32(0x0), cpu_to_be32(nodeid
)
326 uint64_t mem_reg_property
[2];
329 mem_reg_property
[0] = cpu_to_be64(start
);
330 mem_reg_property
[1] = cpu_to_be64(size
);
332 sprintf(mem_name
, "memory@%" HWADDR_PRIx
, start
);
333 off
= fdt_add_subnode(fdt
, 0, mem_name
);
335 _FDT((fdt_setprop_string(fdt
, off
, "device_type", "memory")));
336 _FDT((fdt_setprop(fdt
, off
, "reg", mem_reg_property
,
337 sizeof(mem_reg_property
))));
338 _FDT((fdt_setprop(fdt
, off
, "ibm,associativity", associativity
,
339 sizeof(associativity
))));
343 static uint32_t spapr_pc_dimm_node(MemoryDeviceInfoList
*list
, ram_addr_t addr
)
345 MemoryDeviceInfoList
*info
;
347 for (info
= list
; info
; info
= info
->next
) {
348 MemoryDeviceInfo
*value
= info
->value
;
350 if (value
&& value
->type
== MEMORY_DEVICE_INFO_KIND_DIMM
) {
351 PCDIMMDeviceInfo
*pcdimm_info
= value
->u
.dimm
.data
;
353 if (addr
>= pcdimm_info
->addr
&&
354 addr
< (pcdimm_info
->addr
+ pcdimm_info
->size
)) {
355 return pcdimm_info
->node
;
363 struct sPAPRDrconfCellV2
{
371 typedef struct DrconfCellQueue
{
372 struct sPAPRDrconfCellV2 cell
;
373 QSIMPLEQ_ENTRY(DrconfCellQueue
) entry
;
376 static DrconfCellQueue
*
377 spapr_get_drconf_cell(uint32_t seq_lmbs
, uint64_t base_addr
,
378 uint32_t drc_index
, uint32_t aa_index
,
381 DrconfCellQueue
*elem
;
383 elem
= g_malloc0(sizeof(*elem
));
384 elem
->cell
.seq_lmbs
= cpu_to_be32(seq_lmbs
);
385 elem
->cell
.base_addr
= cpu_to_be64(base_addr
);
386 elem
->cell
.drc_index
= cpu_to_be32(drc_index
);
387 elem
->cell
.aa_index
= cpu_to_be32(aa_index
);
388 elem
->cell
.flags
= cpu_to_be32(flags
);
393 static int spapr_dt_dynamic_memory_v2(SpaprMachineState
*spapr
, void *fdt
,
394 int offset
, MemoryDeviceInfoList
*dimms
)
396 MachineState
*machine
= MACHINE(spapr
);
397 uint8_t *int_buf
, *cur_index
;
399 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
400 uint64_t addr
, cur_addr
, size
;
401 uint32_t nr_boot_lmbs
= (machine
->device_memory
->base
/ lmb_size
);
402 uint64_t mem_end
= machine
->device_memory
->base
+
403 memory_region_size(&machine
->device_memory
->mr
);
404 uint32_t node
, buf_len
, nr_entries
= 0;
406 DrconfCellQueue
*elem
, *next
;
407 MemoryDeviceInfoList
*info
;
408 QSIMPLEQ_HEAD(, DrconfCellQueue
) drconf_queue
409 = QSIMPLEQ_HEAD_INITIALIZER(drconf_queue
);
411 /* Entry to cover RAM and the gap area */
412 elem
= spapr_get_drconf_cell(nr_boot_lmbs
, 0, 0, -1,
413 SPAPR_LMB_FLAGS_RESERVED
|
414 SPAPR_LMB_FLAGS_DRC_INVALID
);
415 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
418 cur_addr
= machine
->device_memory
->base
;
419 for (info
= dimms
; info
; info
= info
->next
) {
420 PCDIMMDeviceInfo
*di
= info
->value
->u
.dimm
.data
;
427 * The NVDIMM area is hotpluggable after the NVDIMM is unplugged. The
428 * area is marked hotpluggable in the next iteration for the bigger
429 * chunk including the NVDIMM occupied area.
431 if (info
->value
->type
== MEMORY_DEVICE_INFO_KIND_NVDIMM
)
434 /* Entry for hot-pluggable area */
435 if (cur_addr
< addr
) {
436 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, cur_addr
/ lmb_size
);
438 elem
= spapr_get_drconf_cell((addr
- cur_addr
) / lmb_size
,
439 cur_addr
, spapr_drc_index(drc
), -1, 0);
440 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
445 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, addr
/ lmb_size
);
447 elem
= spapr_get_drconf_cell(size
/ lmb_size
, addr
,
448 spapr_drc_index(drc
), node
,
449 SPAPR_LMB_FLAGS_ASSIGNED
);
450 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
452 cur_addr
= addr
+ size
;
455 /* Entry for remaining hotpluggable area */
456 if (cur_addr
< mem_end
) {
457 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, cur_addr
/ lmb_size
);
459 elem
= spapr_get_drconf_cell((mem_end
- cur_addr
) / lmb_size
,
460 cur_addr
, spapr_drc_index(drc
), -1, 0);
461 QSIMPLEQ_INSERT_TAIL(&drconf_queue
, elem
, entry
);
465 buf_len
= nr_entries
* sizeof(struct sPAPRDrconfCellV2
) + sizeof(uint32_t);
466 int_buf
= cur_index
= g_malloc0(buf_len
);
467 *(uint32_t *)int_buf
= cpu_to_be32(nr_entries
);
468 cur_index
+= sizeof(nr_entries
);
470 QSIMPLEQ_FOREACH_SAFE(elem
, &drconf_queue
, entry
, next
) {
471 memcpy(cur_index
, &elem
->cell
, sizeof(elem
->cell
));
472 cur_index
+= sizeof(elem
->cell
);
473 QSIMPLEQ_REMOVE(&drconf_queue
, elem
, DrconfCellQueue
, entry
);
477 ret
= fdt_setprop(fdt
, offset
, "ibm,dynamic-memory-v2", int_buf
, buf_len
);
485 static int spapr_dt_dynamic_memory(SpaprMachineState
*spapr
, void *fdt
,
486 int offset
, MemoryDeviceInfoList
*dimms
)
488 MachineState
*machine
= MACHINE(spapr
);
490 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
491 uint32_t device_lmb_start
= machine
->device_memory
->base
/ lmb_size
;
492 uint32_t nr_lmbs
= (machine
->device_memory
->base
+
493 memory_region_size(&machine
->device_memory
->mr
)) /
495 uint32_t *int_buf
, *cur_index
, buf_len
;
498 * Allocate enough buffer size to fit in ibm,dynamic-memory
500 buf_len
= (nr_lmbs
* SPAPR_DR_LMB_LIST_ENTRY_SIZE
+ 1) * sizeof(uint32_t);
501 cur_index
= int_buf
= g_malloc0(buf_len
);
502 int_buf
[0] = cpu_to_be32(nr_lmbs
);
504 for (i
= 0; i
< nr_lmbs
; i
++) {
505 uint64_t addr
= i
* lmb_size
;
506 uint32_t *dynamic_memory
= cur_index
;
508 if (i
>= device_lmb_start
) {
511 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
, i
);
514 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
515 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
516 dynamic_memory
[2] = cpu_to_be32(spapr_drc_index(drc
));
517 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
518 dynamic_memory
[4] = cpu_to_be32(spapr_pc_dimm_node(dimms
, addr
));
519 if (memory_region_present(get_system_memory(), addr
)) {
520 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED
);
522 dynamic_memory
[5] = cpu_to_be32(0);
526 * LMB information for RMA, boot time RAM and gap b/n RAM and
527 * device memory region -- all these are marked as reserved
528 * and as having no valid DRC.
530 dynamic_memory
[0] = cpu_to_be32(addr
>> 32);
531 dynamic_memory
[1] = cpu_to_be32(addr
& 0xffffffff);
532 dynamic_memory
[2] = cpu_to_be32(0);
533 dynamic_memory
[3] = cpu_to_be32(0); /* reserved */
534 dynamic_memory
[4] = cpu_to_be32(-1);
535 dynamic_memory
[5] = cpu_to_be32(SPAPR_LMB_FLAGS_RESERVED
|
536 SPAPR_LMB_FLAGS_DRC_INVALID
);
539 cur_index
+= SPAPR_DR_LMB_LIST_ENTRY_SIZE
;
541 ret
= fdt_setprop(fdt
, offset
, "ibm,dynamic-memory", int_buf
, buf_len
);
550 * Adds ibm,dynamic-reconfiguration-memory node.
551 * Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation
552 * of this device tree node.
554 static int spapr_dt_dynamic_reconfiguration_memory(SpaprMachineState
*spapr
,
557 MachineState
*machine
= MACHINE(spapr
);
558 int nb_numa_nodes
= machine
->numa_state
->num_nodes
;
560 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
561 uint32_t prop_lmb_size
[] = {0, cpu_to_be32(lmb_size
)};
562 uint32_t *int_buf
, *cur_index
, buf_len
;
563 int nr_nodes
= nb_numa_nodes
? nb_numa_nodes
: 1;
564 MemoryDeviceInfoList
*dimms
= NULL
;
567 * Don't create the node if there is no device memory
569 if (machine
->ram_size
== machine
->maxram_size
) {
573 offset
= fdt_add_subnode(fdt
, 0, "ibm,dynamic-reconfiguration-memory");
575 ret
= fdt_setprop(fdt
, offset
, "ibm,lmb-size", prop_lmb_size
,
576 sizeof(prop_lmb_size
));
581 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-flags-mask", 0xff);
586 ret
= fdt_setprop_cell(fdt
, offset
, "ibm,memory-preservation-time", 0x0);
591 /* ibm,dynamic-memory or ibm,dynamic-memory-v2 */
592 dimms
= qmp_memory_device_list();
593 if (spapr_ovec_test(spapr
->ov5_cas
, OV5_DRMEM_V2
)) {
594 ret
= spapr_dt_dynamic_memory_v2(spapr
, fdt
, offset
, dimms
);
596 ret
= spapr_dt_dynamic_memory(spapr
, fdt
, offset
, dimms
);
598 qapi_free_MemoryDeviceInfoList(dimms
);
604 /* ibm,associativity-lookup-arrays */
605 buf_len
= (nr_nodes
* 4 + 2) * sizeof(uint32_t);
606 cur_index
= int_buf
= g_malloc0(buf_len
);
607 int_buf
[0] = cpu_to_be32(nr_nodes
);
608 int_buf
[1] = cpu_to_be32(4); /* Number of entries per associativity list */
610 for (i
= 0; i
< nr_nodes
; i
++) {
611 uint32_t associativity
[] = {
617 memcpy(cur_index
, associativity
, sizeof(associativity
));
620 ret
= fdt_setprop(fdt
, offset
, "ibm,associativity-lookup-arrays", int_buf
,
621 (cur_index
- int_buf
) * sizeof(uint32_t));
627 static int spapr_dt_memory(SpaprMachineState
*spapr
, void *fdt
)
629 MachineState
*machine
= MACHINE(spapr
);
630 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
631 hwaddr mem_start
, node_size
;
632 int i
, nb_nodes
= machine
->numa_state
->num_nodes
;
633 NodeInfo
*nodes
= machine
->numa_state
->nodes
;
635 for (i
= 0, mem_start
= 0; i
< nb_nodes
; ++i
) {
636 if (!nodes
[i
].node_mem
) {
639 if (mem_start
>= machine
->ram_size
) {
642 node_size
= nodes
[i
].node_mem
;
643 if (node_size
> machine
->ram_size
- mem_start
) {
644 node_size
= machine
->ram_size
- mem_start
;
648 /* spapr_machine_init() checks for rma_size <= node0_size
650 spapr_dt_memory_node(fdt
, i
, 0, spapr
->rma_size
);
651 mem_start
+= spapr
->rma_size
;
652 node_size
-= spapr
->rma_size
;
654 for ( ; node_size
; ) {
655 hwaddr sizetmp
= pow2floor(node_size
);
657 /* mem_start != 0 here */
658 if (ctzl(mem_start
) < ctzl(sizetmp
)) {
659 sizetmp
= 1ULL << ctzl(mem_start
);
662 spapr_dt_memory_node(fdt
, i
, mem_start
, sizetmp
);
663 node_size
-= sizetmp
;
664 mem_start
+= sizetmp
;
668 /* Generate ibm,dynamic-reconfiguration-memory node if required */
669 if (spapr_ovec_test(spapr
->ov5_cas
, OV5_DRCONF_MEMORY
)) {
672 g_assert(smc
->dr_lmb_enabled
);
673 ret
= spapr_dt_dynamic_reconfiguration_memory(spapr
, fdt
);
682 static void spapr_dt_cpu(CPUState
*cs
, void *fdt
, int offset
,
683 SpaprMachineState
*spapr
)
685 MachineState
*ms
= MACHINE(spapr
);
686 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
687 CPUPPCState
*env
= &cpu
->env
;
688 PowerPCCPUClass
*pcc
= POWERPC_CPU_GET_CLASS(cs
);
689 int index
= spapr_get_vcpu_id(cpu
);
690 uint32_t segs
[] = {cpu_to_be32(28), cpu_to_be32(40),
691 0xffffffff, 0xffffffff};
692 uint32_t tbfreq
= kvm_enabled() ? kvmppc_get_tbfreq()
693 : SPAPR_TIMEBASE_FREQ
;
694 uint32_t cpufreq
= kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
695 uint32_t page_sizes_prop
[64];
696 size_t page_sizes_prop_size
;
697 unsigned int smp_threads
= ms
->smp
.threads
;
698 uint32_t vcpus_per_socket
= smp_threads
* ms
->smp
.cores
;
699 uint32_t pft_size_prop
[] = {0, cpu_to_be32(spapr
->htab_shift
)};
700 int compat_smt
= MIN(smp_threads
, ppc_compat_max_vthreads(cpu
));
703 uint32_t radix_AP_encodings
[PPC_PAGE_SIZES_MAX_SZ
];
706 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
, index
);
708 drc_index
= spapr_drc_index(drc
);
709 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,my-drc-index", drc_index
)));
712 _FDT((fdt_setprop_cell(fdt
, offset
, "reg", index
)));
713 _FDT((fdt_setprop_string(fdt
, offset
, "device_type", "cpu")));
715 _FDT((fdt_setprop_cell(fdt
, offset
, "cpu-version", env
->spr
[SPR_PVR
])));
716 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-block-size",
717 env
->dcache_line_size
)));
718 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-line-size",
719 env
->dcache_line_size
)));
720 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-block-size",
721 env
->icache_line_size
)));
722 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-line-size",
723 env
->icache_line_size
)));
725 if (pcc
->l1_dcache_size
) {
726 _FDT((fdt_setprop_cell(fdt
, offset
, "d-cache-size",
727 pcc
->l1_dcache_size
)));
729 warn_report("Unknown L1 dcache size for cpu");
731 if (pcc
->l1_icache_size
) {
732 _FDT((fdt_setprop_cell(fdt
, offset
, "i-cache-size",
733 pcc
->l1_icache_size
)));
735 warn_report("Unknown L1 icache size for cpu");
738 _FDT((fdt_setprop_cell(fdt
, offset
, "timebase-frequency", tbfreq
)));
739 _FDT((fdt_setprop_cell(fdt
, offset
, "clock-frequency", cpufreq
)));
740 _FDT((fdt_setprop_cell(fdt
, offset
, "slb-size", cpu
->hash64_opts
->slb_size
)));
741 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,slb-size", cpu
->hash64_opts
->slb_size
)));
742 _FDT((fdt_setprop_string(fdt
, offset
, "status", "okay")));
743 _FDT((fdt_setprop(fdt
, offset
, "64-bit", NULL
, 0)));
745 if (env
->spr_cb
[SPR_PURR
].oea_read
) {
746 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,purr", 1)));
748 if (env
->spr_cb
[SPR_SPURR
].oea_read
) {
749 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,spurr", 1)));
752 if (ppc_hash64_has(cpu
, PPC_HASH64_1TSEG
)) {
753 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-segment-sizes",
754 segs
, sizeof(segs
))));
757 /* Advertise VSX (vector extensions) if available
758 * 1 == VMX / Altivec available
761 * Only CPUs for which we create core types in spapr_cpu_core.c
762 * are possible, and all of those have VMX */
763 if (spapr_get_cap(spapr
, SPAPR_CAP_VSX
) != 0) {
764 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", 2)));
766 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,vmx", 1)));
769 /* Advertise DFP (Decimal Floating Point) if available
770 * 0 / no property == no DFP
771 * 1 == DFP available */
772 if (spapr_get_cap(spapr
, SPAPR_CAP_DFP
) != 0) {
773 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,dfp", 1)));
776 page_sizes_prop_size
= ppc_create_page_sizes_prop(cpu
, page_sizes_prop
,
777 sizeof(page_sizes_prop
));
778 if (page_sizes_prop_size
) {
779 _FDT((fdt_setprop(fdt
, offset
, "ibm,segment-page-sizes",
780 page_sizes_prop
, page_sizes_prop_size
)));
783 spapr_dt_pa_features(spapr
, cpu
, fdt
, offset
);
785 _FDT((fdt_setprop_cell(fdt
, offset
, "ibm,chip-id",
786 cs
->cpu_index
/ vcpus_per_socket
)));
788 _FDT((fdt_setprop(fdt
, offset
, "ibm,pft-size",
789 pft_size_prop
, sizeof(pft_size_prop
))));
791 if (ms
->numa_state
->num_nodes
> 1) {
792 _FDT(spapr_fixup_cpu_numa_dt(fdt
, offset
, cpu
));
795 _FDT(spapr_fixup_cpu_smt_dt(fdt
, offset
, cpu
, compat_smt
));
797 if (pcc
->radix_page_info
) {
798 for (i
= 0; i
< pcc
->radix_page_info
->count
; i
++) {
799 radix_AP_encodings
[i
] =
800 cpu_to_be32(pcc
->radix_page_info
->entries
[i
]);
802 _FDT((fdt_setprop(fdt
, offset
, "ibm,processor-radix-AP-encodings",
804 pcc
->radix_page_info
->count
*
805 sizeof(radix_AP_encodings
[0]))));
809 * We set this property to let the guest know that it can use the large
810 * decrementer and its width in bits.
812 if (spapr_get_cap(spapr
, SPAPR_CAP_LARGE_DECREMENTER
) != SPAPR_CAP_OFF
)
813 _FDT((fdt_setprop_u32(fdt
, offset
, "ibm,dec-bits",
814 pcc
->lrg_decr_bits
)));
817 static void spapr_dt_cpus(void *fdt
, SpaprMachineState
*spapr
)
826 cpus_offset
= fdt_add_subnode(fdt
, 0, "cpus");
828 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#address-cells", 0x1)));
829 _FDT((fdt_setprop_cell(fdt
, cpus_offset
, "#size-cells", 0x0)));
832 * We walk the CPUs in reverse order to ensure that CPU DT nodes
833 * created by fdt_add_subnode() end up in the right order in FDT
834 * for the guest kernel the enumerate the CPUs correctly.
836 * The CPU list cannot be traversed in reverse order, so we need
842 rev
= g_renew(CPUState
*, rev
, n_cpus
+ 1);
846 for (i
= n_cpus
- 1; i
>= 0; i
--) {
847 CPUState
*cs
= rev
[i
];
848 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
849 int index
= spapr_get_vcpu_id(cpu
);
850 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
853 if (!spapr_is_thread0_in_vcore(spapr
, cpu
)) {
857 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, index
);
858 offset
= fdt_add_subnode(fdt
, cpus_offset
, nodename
);
861 spapr_dt_cpu(cs
, fdt
, offset
, spapr
);
867 static int spapr_dt_rng(void *fdt
)
872 node
= qemu_fdt_add_subnode(fdt
, "/ibm,platform-facilities");
876 ret
= fdt_setprop_string(fdt
, node
, "device_type",
877 "ibm,platform-facilities");
878 ret
|= fdt_setprop_cell(fdt
, node
, "#address-cells", 0x1);
879 ret
|= fdt_setprop_cell(fdt
, node
, "#size-cells", 0x0);
881 node
= fdt_add_subnode(fdt
, node
, "ibm,random-v1");
885 ret
|= fdt_setprop_string(fdt
, node
, "compatible", "ibm,random");
890 static void spapr_dt_rtas(SpaprMachineState
*spapr
, void *fdt
)
892 MachineState
*ms
= MACHINE(spapr
);
894 GString
*hypertas
= g_string_sized_new(256);
895 GString
*qemu_hypertas
= g_string_sized_new(256);
896 uint32_t refpoints
[] = { cpu_to_be32(0x4), cpu_to_be32(0x4) };
897 uint64_t max_device_addr
= MACHINE(spapr
)->device_memory
->base
+
898 memory_region_size(&MACHINE(spapr
)->device_memory
->mr
);
899 uint32_t lrdr_capacity
[] = {
900 cpu_to_be32(max_device_addr
>> 32),
901 cpu_to_be32(max_device_addr
& 0xffffffff),
902 0, cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE
),
903 cpu_to_be32(ms
->smp
.max_cpus
/ ms
->smp
.threads
),
905 uint32_t maxdomain
= cpu_to_be32(spapr
->gpu_numa_id
> 1 ? 1 : 0);
906 uint32_t maxdomains
[] = {
911 cpu_to_be32(spapr
->gpu_numa_id
),
914 _FDT(rtas
= fdt_add_subnode(fdt
, 0, "rtas"));
917 add_str(hypertas
, "hcall-pft");
918 add_str(hypertas
, "hcall-term");
919 add_str(hypertas
, "hcall-dabr");
920 add_str(hypertas
, "hcall-interrupt");
921 add_str(hypertas
, "hcall-tce");
922 add_str(hypertas
, "hcall-vio");
923 add_str(hypertas
, "hcall-splpar");
924 add_str(hypertas
, "hcall-join");
925 add_str(hypertas
, "hcall-bulk");
926 add_str(hypertas
, "hcall-set-mode");
927 add_str(hypertas
, "hcall-sprg0");
928 add_str(hypertas
, "hcall-copy");
929 add_str(hypertas
, "hcall-debug");
930 add_str(hypertas
, "hcall-vphn");
931 add_str(qemu_hypertas
, "hcall-memop1");
933 if (!kvm_enabled() || kvmppc_spapr_use_multitce()) {
934 add_str(hypertas
, "hcall-multi-tce");
937 if (spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) {
938 add_str(hypertas
, "hcall-hpt-resize");
941 _FDT(fdt_setprop(fdt
, rtas
, "ibm,hypertas-functions",
942 hypertas
->str
, hypertas
->len
));
943 g_string_free(hypertas
, TRUE
);
944 _FDT(fdt_setprop(fdt
, rtas
, "qemu,hypertas-functions",
945 qemu_hypertas
->str
, qemu_hypertas
->len
));
946 g_string_free(qemu_hypertas
, TRUE
);
948 _FDT(fdt_setprop(fdt
, rtas
, "ibm,associativity-reference-points",
949 refpoints
, sizeof(refpoints
)));
951 _FDT(fdt_setprop(fdt
, rtas
, "ibm,max-associativity-domains",
952 maxdomains
, sizeof(maxdomains
)));
955 * FWNMI reserves RTAS_ERROR_LOG_MAX for the machine check error log,
956 * and 16 bytes per CPU for system reset error log plus an extra 8 bytes.
958 * The system reset requirements are driven by existing Linux and PowerVM
959 * implementation which (contrary to PAPR) saves r3 in the error log
960 * structure like machine check, so Linux expects to find the saved r3
961 * value at the address in r3 upon FWNMI-enabled sreset interrupt (and
962 * does not look at the error value).
964 * System reset interrupts are not subject to interlock like machine
965 * check, so this memory area could be corrupted if the sreset is
966 * interrupted by a machine check (or vice versa) if it was shared. To
967 * prevent this, system reset uses per-CPU areas for the sreset save
968 * area. A system reset that interrupts a system reset handler could
969 * still overwrite this area, but Linux doesn't try to recover in that
972 * The extra 8 bytes is required because Linux's FWNMI error log check
975 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-size", RTAS_ERROR_LOG_MAX
+
976 ms
->smp
.max_cpus
* sizeof(uint64_t)*2 + sizeof(uint64_t)));
977 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-error-log-max",
978 RTAS_ERROR_LOG_MAX
));
979 _FDT(fdt_setprop_cell(fdt
, rtas
, "rtas-event-scan-rate",
980 RTAS_EVENT_SCAN_RATE
));
982 g_assert(msi_nonbroken
);
983 _FDT(fdt_setprop(fdt
, rtas
, "ibm,change-msix-capable", NULL
, 0));
986 * According to PAPR, rtas ibm,os-term does not guarantee a return
987 * back to the guest cpu.
989 * While an additional ibm,extended-os-term property indicates
990 * that rtas call return will always occur. Set this property.
992 _FDT(fdt_setprop(fdt
, rtas
, "ibm,extended-os-term", NULL
, 0));
994 _FDT(fdt_setprop(fdt
, rtas
, "ibm,lrdr-capacity",
995 lrdr_capacity
, sizeof(lrdr_capacity
)));
997 spapr_dt_rtas_tokens(fdt
, rtas
);
1001 * Prepare ibm,arch-vec-5-platform-support, which indicates the MMU
1002 * and the XIVE features that the guest may request and thus the valid
1003 * values for bytes 23..26 of option vector 5:
1005 static void spapr_dt_ov5_platform_support(SpaprMachineState
*spapr
, void *fdt
,
1008 PowerPCCPU
*first_ppc_cpu
= POWERPC_CPU(first_cpu
);
1011 23, 0x00, /* XICS / XIVE mode */
1012 24, 0x00, /* Hash/Radix, filled in below. */
1013 25, 0x00, /* Hash options: Segment Tables == no, GTSE == no. */
1014 26, 0x40, /* Radix options: GTSE == yes. */
1017 if (spapr
->irq
->xics
&& spapr
->irq
->xive
) {
1018 val
[1] = SPAPR_OV5_XIVE_BOTH
;
1019 } else if (spapr
->irq
->xive
) {
1020 val
[1] = SPAPR_OV5_XIVE_EXPLOIT
;
1022 assert(spapr
->irq
->xics
);
1023 val
[1] = SPAPR_OV5_XIVE_LEGACY
;
1026 if (!ppc_check_compat(first_ppc_cpu
, CPU_POWERPC_LOGICAL_3_00
, 0,
1027 first_ppc_cpu
->compat_pvr
)) {
1029 * If we're in a pre POWER9 compat mode then the guest should
1030 * do hash and use the legacy interrupt mode
1032 val
[1] = SPAPR_OV5_XIVE_LEGACY
; /* XICS */
1033 val
[3] = 0x00; /* Hash */
1034 } else if (kvm_enabled()) {
1035 if (kvmppc_has_cap_mmu_radix() && kvmppc_has_cap_mmu_hash_v3()) {
1036 val
[3] = 0x80; /* OV5_MMU_BOTH */
1037 } else if (kvmppc_has_cap_mmu_radix()) {
1038 val
[3] = 0x40; /* OV5_MMU_RADIX_300 */
1040 val
[3] = 0x00; /* Hash */
1043 /* V3 MMU supports both hash and radix in tcg (with dynamic switching) */
1046 _FDT(fdt_setprop(fdt
, chosen
, "ibm,arch-vec-5-platform-support",
1050 static void spapr_dt_chosen(SpaprMachineState
*spapr
, void *fdt
, bool reset
)
1052 MachineState
*machine
= MACHINE(spapr
);
1053 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
1056 _FDT(chosen
= fdt_add_subnode(fdt
, 0, "chosen"));
1059 const char *boot_device
= machine
->boot_order
;
1060 char *stdout_path
= spapr_vio_stdout_path(spapr
->vio_bus
);
1062 char *bootlist
= get_boot_devices_list(&cb
);
1064 if (machine
->kernel_cmdline
&& machine
->kernel_cmdline
[0]) {
1065 _FDT(fdt_setprop_string(fdt
, chosen
, "bootargs",
1066 machine
->kernel_cmdline
));
1069 if (spapr
->initrd_size
) {
1070 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,initrd-start",
1071 spapr
->initrd_base
));
1072 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,initrd-end",
1073 spapr
->initrd_base
+ spapr
->initrd_size
));
1076 if (spapr
->kernel_size
) {
1077 uint64_t kprop
[2] = { cpu_to_be64(spapr
->kernel_addr
),
1078 cpu_to_be64(spapr
->kernel_size
) };
1080 _FDT(fdt_setprop(fdt
, chosen
, "qemu,boot-kernel",
1081 &kprop
, sizeof(kprop
)));
1082 if (spapr
->kernel_le
) {
1083 _FDT(fdt_setprop(fdt
, chosen
, "qemu,boot-kernel-le", NULL
, 0));
1087 _FDT((fdt_setprop_cell(fdt
, chosen
, "qemu,boot-menu", boot_menu
)));
1089 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-width", graphic_width
));
1090 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-height", graphic_height
));
1091 _FDT(fdt_setprop_cell(fdt
, chosen
, "qemu,graphic-depth", graphic_depth
));
1093 if (cb
&& bootlist
) {
1096 for (i
= 0; i
< cb
; i
++) {
1097 if (bootlist
[i
] == '\n') {
1101 _FDT(fdt_setprop_string(fdt
, chosen
, "qemu,boot-list", bootlist
));
1104 if (boot_device
&& strlen(boot_device
)) {
1105 _FDT(fdt_setprop_string(fdt
, chosen
, "qemu,boot-device", boot_device
));
1108 if (!spapr
->has_graphics
&& stdout_path
) {
1110 * "linux,stdout-path" and "stdout" properties are
1111 * deprecated by linux kernel. New platforms should only
1112 * use the "stdout-path" property. Set the new property
1113 * and continue using older property to remain compatible
1114 * with the existing firmware.
1116 _FDT(fdt_setprop_string(fdt
, chosen
, "linux,stdout-path", stdout_path
));
1117 _FDT(fdt_setprop_string(fdt
, chosen
, "stdout-path", stdout_path
));
1121 * We can deal with BAR reallocation just fine, advertise it
1124 if (smc
->linux_pci_probe
) {
1125 _FDT(fdt_setprop_cell(fdt
, chosen
, "linux,pci-probe-only", 0));
1128 spapr_dt_ov5_platform_support(spapr
, fdt
, chosen
);
1130 g_free(stdout_path
);
1134 _FDT(spapr_dt_ovec(fdt
, chosen
, spapr
->ov5_cas
, "ibm,architecture-vec-5"));
1137 static void spapr_dt_hypervisor(SpaprMachineState
*spapr
, void *fdt
)
1139 /* The /hypervisor node isn't in PAPR - this is a hack to allow PR
1140 * KVM to work under pHyp with some guest co-operation */
1142 uint8_t hypercall
[16];
1144 _FDT(hypervisor
= fdt_add_subnode(fdt
, 0, "hypervisor"));
1145 /* indicate KVM hypercall interface */
1146 _FDT(fdt_setprop_string(fdt
, hypervisor
, "compatible", "linux,kvm"));
1147 if (kvmppc_has_cap_fixup_hcalls()) {
1149 * Older KVM versions with older guest kernels were broken
1150 * with the magic page, don't allow the guest to map it.
1152 if (!kvmppc_get_hypercall(first_cpu
->env_ptr
, hypercall
,
1153 sizeof(hypercall
))) {
1154 _FDT(fdt_setprop(fdt
, hypervisor
, "hcall-instructions",
1155 hypercall
, sizeof(hypercall
)));
1160 void *spapr_build_fdt(SpaprMachineState
*spapr
, bool reset
, size_t space
)
1162 MachineState
*machine
= MACHINE(spapr
);
1163 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
1164 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
1170 fdt
= g_malloc0(space
);
1171 _FDT((fdt_create_empty_tree(fdt
, space
)));
1174 _FDT(fdt_setprop_string(fdt
, 0, "device_type", "chrp"));
1175 _FDT(fdt_setprop_string(fdt
, 0, "model", "IBM pSeries (emulated by qemu)"));
1176 _FDT(fdt_setprop_string(fdt
, 0, "compatible", "qemu,pseries"));
1178 /* Guest UUID & Name*/
1179 buf
= qemu_uuid_unparse_strdup(&qemu_uuid
);
1180 _FDT(fdt_setprop_string(fdt
, 0, "vm,uuid", buf
));
1181 if (qemu_uuid_set
) {
1182 _FDT(fdt_setprop_string(fdt
, 0, "system-id", buf
));
1186 if (qemu_get_vm_name()) {
1187 _FDT(fdt_setprop_string(fdt
, 0, "ibm,partition-name",
1188 qemu_get_vm_name()));
1191 /* Host Model & Serial Number */
1192 if (spapr
->host_model
) {
1193 _FDT(fdt_setprop_string(fdt
, 0, "host-model", spapr
->host_model
));
1194 } else if (smc
->broken_host_serial_model
&& kvmppc_get_host_model(&buf
)) {
1195 _FDT(fdt_setprop_string(fdt
, 0, "host-model", buf
));
1199 if (spapr
->host_serial
) {
1200 _FDT(fdt_setprop_string(fdt
, 0, "host-serial", spapr
->host_serial
));
1201 } else if (smc
->broken_host_serial_model
&& kvmppc_get_host_serial(&buf
)) {
1202 _FDT(fdt_setprop_string(fdt
, 0, "host-serial", buf
));
1206 _FDT(fdt_setprop_cell(fdt
, 0, "#address-cells", 2));
1207 _FDT(fdt_setprop_cell(fdt
, 0, "#size-cells", 2));
1209 /* /interrupt controller */
1210 spapr_irq_dt(spapr
, spapr_max_server_number(spapr
), fdt
, PHANDLE_INTC
);
1212 ret
= spapr_dt_memory(spapr
, fdt
);
1214 error_report("couldn't setup memory nodes in fdt");
1219 spapr_dt_vdevice(spapr
->vio_bus
, fdt
);
1221 if (object_resolve_path_type("", TYPE_SPAPR_RNG
, NULL
)) {
1222 ret
= spapr_dt_rng(fdt
);
1224 error_report("could not set up rng device in the fdt");
1229 QLIST_FOREACH(phb
, &spapr
->phbs
, list
) {
1230 ret
= spapr_dt_phb(spapr
, phb
, PHANDLE_INTC
, fdt
, NULL
);
1232 error_report("couldn't setup PCI devices in fdt");
1237 spapr_dt_cpus(fdt
, spapr
);
1239 if (smc
->dr_lmb_enabled
) {
1240 _FDT(spapr_dt_drc(fdt
, 0, NULL
, SPAPR_DR_CONNECTOR_TYPE_LMB
));
1243 if (mc
->has_hotpluggable_cpus
) {
1244 int offset
= fdt_path_offset(fdt
, "/cpus");
1245 ret
= spapr_dt_drc(fdt
, offset
, NULL
, SPAPR_DR_CONNECTOR_TYPE_CPU
);
1247 error_report("Couldn't set up CPU DR device tree properties");
1252 /* /event-sources */
1253 spapr_dt_events(spapr
, fdt
);
1256 spapr_dt_rtas(spapr
, fdt
);
1259 spapr_dt_chosen(spapr
, fdt
, reset
);
1262 if (kvm_enabled()) {
1263 spapr_dt_hypervisor(spapr
, fdt
);
1266 /* Build memory reserve map */
1268 if (spapr
->kernel_size
) {
1269 _FDT((fdt_add_mem_rsv(fdt
, spapr
->kernel_addr
,
1270 spapr
->kernel_size
)));
1272 if (spapr
->initrd_size
) {
1273 _FDT((fdt_add_mem_rsv(fdt
, spapr
->initrd_base
,
1274 spapr
->initrd_size
)));
1278 if (smc
->dr_phb_enabled
) {
1279 ret
= spapr_dt_drc(fdt
, 0, NULL
, SPAPR_DR_CONNECTOR_TYPE_PHB
);
1281 error_report("Couldn't set up PHB DR device tree properties");
1286 /* NVDIMM devices */
1287 if (mc
->nvdimm_supported
) {
1288 spapr_dt_persistent_memory(fdt
);
1294 static uint64_t translate_kernel_address(void *opaque
, uint64_t addr
)
1296 SpaprMachineState
*spapr
= opaque
;
1298 return (addr
& 0x0fffffff) + spapr
->kernel_addr
;
1301 static void emulate_spapr_hypercall(PPCVirtualHypervisor
*vhyp
,
1304 CPUPPCState
*env
= &cpu
->env
;
1306 /* The TCG path should also be holding the BQL at this point */
1307 g_assert(qemu_mutex_iothread_locked());
1310 hcall_dprintf("Hypercall made with MSR[PR]=1\n");
1311 env
->gpr
[3] = H_PRIVILEGE
;
1313 env
->gpr
[3] = spapr_hypercall(cpu
, env
->gpr
[3], &env
->gpr
[4]);
1317 struct LPCRSyncState
{
1322 static void do_lpcr_sync(CPUState
*cs
, run_on_cpu_data arg
)
1324 struct LPCRSyncState
*s
= arg
.host_ptr
;
1325 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
1326 CPUPPCState
*env
= &cpu
->env
;
1329 cpu_synchronize_state(cs
);
1330 lpcr
= env
->spr
[SPR_LPCR
];
1333 ppc_store_lpcr(cpu
, lpcr
);
1336 void spapr_set_all_lpcrs(target_ulong value
, target_ulong mask
)
1339 struct LPCRSyncState s
= {
1344 run_on_cpu(cs
, do_lpcr_sync
, RUN_ON_CPU_HOST_PTR(&s
));
1348 static void spapr_get_pate(PPCVirtualHypervisor
*vhyp
, ppc_v3_pate_t
*entry
)
1350 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1352 /* Copy PATE1:GR into PATE0:HR */
1353 entry
->dw0
= spapr
->patb_entry
& PATE0_HR
;
1354 entry
->dw1
= spapr
->patb_entry
;
1357 #define HPTE(_table, _i) (void *)(((uint64_t *)(_table)) + ((_i) * 2))
1358 #define HPTE_VALID(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID)
1359 #define HPTE_DIRTY(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY)
1360 #define CLEAN_HPTE(_hpte) ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY))
1361 #define DIRTY_HPTE(_hpte) ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY))
1364 * Get the fd to access the kernel htab, re-opening it if necessary
1366 static int get_htab_fd(SpaprMachineState
*spapr
)
1368 Error
*local_err
= NULL
;
1370 if (spapr
->htab_fd
>= 0) {
1371 return spapr
->htab_fd
;
1374 spapr
->htab_fd
= kvmppc_get_htab_fd(false, 0, &local_err
);
1375 if (spapr
->htab_fd
< 0) {
1376 error_report_err(local_err
);
1379 return spapr
->htab_fd
;
1382 void close_htab_fd(SpaprMachineState
*spapr
)
1384 if (spapr
->htab_fd
>= 0) {
1385 close(spapr
->htab_fd
);
1387 spapr
->htab_fd
= -1;
1390 static hwaddr
spapr_hpt_mask(PPCVirtualHypervisor
*vhyp
)
1392 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1394 return HTAB_SIZE(spapr
) / HASH_PTEG_SIZE_64
- 1;
1397 static target_ulong
spapr_encode_hpt_for_kvm_pr(PPCVirtualHypervisor
*vhyp
)
1399 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1401 assert(kvm_enabled());
1407 return (target_ulong
)(uintptr_t)spapr
->htab
| (spapr
->htab_shift
- 18);
1410 static const ppc_hash_pte64_t
*spapr_map_hptes(PPCVirtualHypervisor
*vhyp
,
1413 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1414 hwaddr pte_offset
= ptex
* HASH_PTE_SIZE_64
;
1418 * HTAB is controlled by KVM. Fetch into temporary buffer
1420 ppc_hash_pte64_t
*hptes
= g_malloc(n
* HASH_PTE_SIZE_64
);
1421 kvmppc_read_hptes(hptes
, ptex
, n
);
1426 * HTAB is controlled by QEMU. Just point to the internally
1429 return (const ppc_hash_pte64_t
*)(spapr
->htab
+ pte_offset
);
1432 static void spapr_unmap_hptes(PPCVirtualHypervisor
*vhyp
,
1433 const ppc_hash_pte64_t
*hptes
,
1436 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1439 g_free((void *)hptes
);
1442 /* Nothing to do for qemu managed HPT */
1445 void spapr_store_hpte(PowerPCCPU
*cpu
, hwaddr ptex
,
1446 uint64_t pte0
, uint64_t pte1
)
1448 SpaprMachineState
*spapr
= SPAPR_MACHINE(cpu
->vhyp
);
1449 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
;
1452 kvmppc_write_hpte(ptex
, pte0
, pte1
);
1454 if (pte0
& HPTE64_V_VALID
) {
1455 stq_p(spapr
->htab
+ offset
+ HASH_PTE_SIZE_64
/ 2, pte1
);
1457 * When setting valid, we write PTE1 first. This ensures
1458 * proper synchronization with the reading code in
1459 * ppc_hash64_pteg_search()
1462 stq_p(spapr
->htab
+ offset
, pte0
);
1464 stq_p(spapr
->htab
+ offset
, pte0
);
1466 * When clearing it we set PTE0 first. This ensures proper
1467 * synchronization with the reading code in
1468 * ppc_hash64_pteg_search()
1471 stq_p(spapr
->htab
+ offset
+ HASH_PTE_SIZE_64
/ 2, pte1
);
1476 static void spapr_hpte_set_c(PPCVirtualHypervisor
*vhyp
, hwaddr ptex
,
1479 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
+ 15;
1480 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1483 /* There should always be a hash table when this is called */
1484 error_report("spapr_hpte_set_c called with no hash table !");
1488 /* The HW performs a non-atomic byte update */
1489 stb_p(spapr
->htab
+ offset
, (pte1
& 0xff) | 0x80);
1492 static void spapr_hpte_set_r(PPCVirtualHypervisor
*vhyp
, hwaddr ptex
,
1495 hwaddr offset
= ptex
* HASH_PTE_SIZE_64
+ 14;
1496 SpaprMachineState
*spapr
= SPAPR_MACHINE(vhyp
);
1499 /* There should always be a hash table when this is called */
1500 error_report("spapr_hpte_set_r called with no hash table !");
1504 /* The HW performs a non-atomic byte update */
1505 stb_p(spapr
->htab
+ offset
, ((pte1
>> 8) & 0xff) | 0x01);
1508 int spapr_hpt_shift_for_ramsize(uint64_t ramsize
)
1512 /* We aim for a hash table of size 1/128 the size of RAM (rounded
1513 * up). The PAPR recommendation is actually 1/64 of RAM size, but
1514 * that's much more than is needed for Linux guests */
1515 shift
= ctz64(pow2ceil(ramsize
)) - 7;
1516 shift
= MAX(shift
, 18); /* Minimum architected size */
1517 shift
= MIN(shift
, 46); /* Maximum architected size */
1521 void spapr_free_hpt(SpaprMachineState
*spapr
)
1523 g_free(spapr
->htab
);
1525 spapr
->htab_shift
= 0;
1526 close_htab_fd(spapr
);
1529 void spapr_reallocate_hpt(SpaprMachineState
*spapr
, int shift
,
1534 /* Clean up any HPT info from a previous boot */
1535 spapr_free_hpt(spapr
);
1537 rc
= kvmppc_reset_htab(shift
);
1539 /* kernel-side HPT needed, but couldn't allocate one */
1540 error_setg_errno(errp
, errno
,
1541 "Failed to allocate KVM HPT of order %d (try smaller maxmem?)",
1543 /* This is almost certainly fatal, but if the caller really
1544 * wants to carry on with shift == 0, it's welcome to try */
1545 } else if (rc
> 0) {
1546 /* kernel-side HPT allocated */
1549 "Requested order %d HPT, but kernel allocated order %ld (try smaller maxmem?)",
1553 spapr
->htab_shift
= shift
;
1556 /* kernel-side HPT not needed, allocate in userspace instead */
1557 size_t size
= 1ULL << shift
;
1560 spapr
->htab
= qemu_memalign(size
, size
);
1562 error_setg_errno(errp
, errno
,
1563 "Could not allocate HPT of order %d", shift
);
1567 memset(spapr
->htab
, 0, size
);
1568 spapr
->htab_shift
= shift
;
1570 for (i
= 0; i
< size
/ HASH_PTE_SIZE_64
; i
++) {
1571 DIRTY_HPTE(HPTE(spapr
->htab
, i
));
1574 /* We're setting up a hash table, so that means we're not radix */
1575 spapr
->patb_entry
= 0;
1576 spapr_set_all_lpcrs(0, LPCR_HR
| LPCR_UPRT
);
1579 void spapr_setup_hpt(SpaprMachineState
*spapr
)
1583 if ((spapr
->resize_hpt
== SPAPR_RESIZE_HPT_DISABLED
)
1584 || (spapr
->cas_reboot
1585 && !spapr_ovec_test(spapr
->ov5_cas
, OV5_HPT_RESIZE
))) {
1586 hpt_shift
= spapr_hpt_shift_for_ramsize(MACHINE(spapr
)->maxram_size
);
1588 uint64_t current_ram_size
;
1590 current_ram_size
= MACHINE(spapr
)->ram_size
+ get_plugged_memory_size();
1591 hpt_shift
= spapr_hpt_shift_for_ramsize(current_ram_size
);
1593 spapr_reallocate_hpt(spapr
, hpt_shift
, &error_fatal
);
1595 if (kvm_enabled()) {
1596 hwaddr vrma_limit
= kvmppc_vrma_limit(spapr
->htab_shift
);
1598 /* Check our RMA fits in the possible VRMA */
1599 if (vrma_limit
< spapr
->rma_size
) {
1600 error_report("Unable to create %" HWADDR_PRIu
1601 "MiB RMA (VRMA only allows %" HWADDR_PRIu
"MiB",
1602 spapr
->rma_size
/ MiB
, vrma_limit
/ MiB
);
1608 static int spapr_reset_drcs(Object
*child
, void *opaque
)
1611 (SpaprDrc
*) object_dynamic_cast(child
,
1612 TYPE_SPAPR_DR_CONNECTOR
);
1615 spapr_drc_reset(drc
);
1621 static void spapr_machine_reset(MachineState
*machine
)
1623 SpaprMachineState
*spapr
= SPAPR_MACHINE(machine
);
1624 PowerPCCPU
*first_ppc_cpu
;
1629 kvmppc_svm_off(&error_fatal
);
1630 spapr_caps_apply(spapr
);
1632 first_ppc_cpu
= POWERPC_CPU(first_cpu
);
1633 if (kvm_enabled() && kvmppc_has_cap_mmu_radix() &&
1634 ppc_type_check_compat(machine
->cpu_type
, CPU_POWERPC_LOGICAL_3_00
, 0,
1635 spapr
->max_compat_pvr
)) {
1637 * If using KVM with radix mode available, VCPUs can be started
1638 * without a HPT because KVM will start them in radix mode.
1639 * Set the GR bit in PATE so that we know there is no HPT.
1641 spapr
->patb_entry
= PATE1_GR
;
1642 spapr_set_all_lpcrs(LPCR_HR
| LPCR_UPRT
, LPCR_HR
| LPCR_UPRT
);
1644 spapr_setup_hpt(spapr
);
1647 qemu_devices_reset();
1650 * If this reset wasn't generated by CAS, we should reset our
1651 * negotiated options and start from scratch
1653 if (!spapr
->cas_reboot
) {
1654 spapr_ovec_cleanup(spapr
->ov5_cas
);
1655 spapr
->ov5_cas
= spapr_ovec_new();
1657 ppc_set_compat_all(spapr
->max_compat_pvr
, &error_fatal
);
1661 * This is fixing some of the default configuration of the XIVE
1662 * devices. To be called after the reset of the machine devices.
1664 spapr_irq_reset(spapr
, &error_fatal
);
1667 * There is no CAS under qtest. Simulate one to please the code that
1668 * depends on spapr->ov5_cas. This is especially needed to test device
1669 * unplug, so we do that before resetting the DRCs.
1671 if (qtest_enabled()) {
1672 spapr_ovec_cleanup(spapr
->ov5_cas
);
1673 spapr
->ov5_cas
= spapr_ovec_clone(spapr
->ov5
);
1676 /* DRC reset may cause a device to be unplugged. This will cause troubles
1677 * if this device is used by another device (eg, a running vhost backend
1678 * will crash QEMU if the DIMM holding the vring goes away). To avoid such
1679 * situations, we reset DRCs after all devices have been reset.
1681 object_child_foreach_recursive(object_get_root(), spapr_reset_drcs
, NULL
);
1683 spapr_clear_pending_events(spapr
);
1686 * We place the device tree and RTAS just below either the top of the RMA,
1687 * or just below 2GB, whichever is lower, so that it can be
1688 * processed with 32-bit real mode code if necessary
1690 fdt_addr
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
) - FDT_MAX_SIZE
;
1692 fdt
= spapr_build_fdt(spapr
, true, FDT_MAX_SIZE
);
1696 /* Should only fail if we've built a corrupted tree */
1700 qemu_fdt_dumpdtb(fdt
, fdt_totalsize(fdt
));
1701 cpu_physical_memory_write(fdt_addr
, fdt
, fdt_totalsize(fdt
));
1702 g_free(spapr
->fdt_blob
);
1703 spapr
->fdt_size
= fdt_totalsize(fdt
);
1704 spapr
->fdt_initial_size
= spapr
->fdt_size
;
1705 spapr
->fdt_blob
= fdt
;
1707 /* Set up the entry state */
1708 spapr_cpu_set_entry_state(first_ppc_cpu
, SPAPR_ENTRY_POINT
, 0, fdt_addr
, 0);
1709 first_ppc_cpu
->env
.gpr
[5] = 0;
1711 spapr
->cas_reboot
= false;
1713 spapr
->fwnmi_system_reset_addr
= -1;
1714 spapr
->fwnmi_machine_check_addr
= -1;
1715 spapr
->fwnmi_machine_check_interlock
= -1;
1717 /* Signal all vCPUs waiting on this condition */
1718 qemu_cond_broadcast(&spapr
->fwnmi_machine_check_interlock_cond
);
1720 migrate_del_blocker(spapr
->fwnmi_migration_blocker
);
1723 static void spapr_create_nvram(SpaprMachineState
*spapr
)
1725 DeviceState
*dev
= qdev_create(&spapr
->vio_bus
->bus
, "spapr-nvram");
1726 DriveInfo
*dinfo
= drive_get(IF_PFLASH
, 0, 0);
1729 qdev_prop_set_drive(dev
, "drive", blk_by_legacy_dinfo(dinfo
),
1733 qdev_init_nofail(dev
);
1735 spapr
->nvram
= (struct SpaprNvram
*)dev
;
1738 static void spapr_rtc_create(SpaprMachineState
*spapr
)
1740 object_initialize_child(OBJECT(spapr
), "rtc",
1741 &spapr
->rtc
, sizeof(spapr
->rtc
), TYPE_SPAPR_RTC
,
1742 &error_fatal
, NULL
);
1743 object_property_set_bool(OBJECT(&spapr
->rtc
), true, "realized",
1745 object_property_add_alias(OBJECT(spapr
), "rtc-time", OBJECT(&spapr
->rtc
),
1746 "date", &error_fatal
);
1749 /* Returns whether we want to use VGA or not */
1750 static bool spapr_vga_init(PCIBus
*pci_bus
, Error
**errp
)
1752 switch (vga_interface_type
) {
1760 return pci_vga_init(pci_bus
) != NULL
;
1763 "Unsupported VGA mode, only -vga std or -vga virtio is supported");
1768 static int spapr_pre_load(void *opaque
)
1772 rc
= spapr_caps_pre_load(opaque
);
1780 static int spapr_post_load(void *opaque
, int version_id
)
1782 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
1785 err
= spapr_caps_post_migration(spapr
);
1791 * In earlier versions, there was no separate qdev for the PAPR
1792 * RTC, so the RTC offset was stored directly in sPAPREnvironment.
1793 * So when migrating from those versions, poke the incoming offset
1794 * value into the RTC device
1796 if (version_id
< 3) {
1797 err
= spapr_rtc_import_offset(&spapr
->rtc
, spapr
->rtc_offset
);
1803 if (kvm_enabled() && spapr
->patb_entry
) {
1804 PowerPCCPU
*cpu
= POWERPC_CPU(first_cpu
);
1805 bool radix
= !!(spapr
->patb_entry
& PATE1_GR
);
1806 bool gtse
= !!(cpu
->env
.spr
[SPR_LPCR
] & LPCR_GTSE
);
1809 * Update LPCR:HR and UPRT as they may not be set properly in
1812 spapr_set_all_lpcrs(radix
? (LPCR_HR
| LPCR_UPRT
) : 0,
1813 LPCR_HR
| LPCR_UPRT
);
1815 err
= kvmppc_configure_v3_mmu(cpu
, radix
, gtse
, spapr
->patb_entry
);
1817 error_report("Process table config unsupported by the host");
1822 err
= spapr_irq_post_load(spapr
, version_id
);
1830 static int spapr_pre_save(void *opaque
)
1834 rc
= spapr_caps_pre_save(opaque
);
1842 static bool version_before_3(void *opaque
, int version_id
)
1844 return version_id
< 3;
1847 static bool spapr_pending_events_needed(void *opaque
)
1849 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
1850 return !QTAILQ_EMPTY(&spapr
->pending_events
);
1853 static const VMStateDescription vmstate_spapr_event_entry
= {
1854 .name
= "spapr_event_log_entry",
1856 .minimum_version_id
= 1,
1857 .fields
= (VMStateField
[]) {
1858 VMSTATE_UINT32(summary
, SpaprEventLogEntry
),
1859 VMSTATE_UINT32(extended_length
, SpaprEventLogEntry
),
1860 VMSTATE_VBUFFER_ALLOC_UINT32(extended_log
, SpaprEventLogEntry
, 0,
1861 NULL
, extended_length
),
1862 VMSTATE_END_OF_LIST()
1866 static const VMStateDescription vmstate_spapr_pending_events
= {
1867 .name
= "spapr_pending_events",
1869 .minimum_version_id
= 1,
1870 .needed
= spapr_pending_events_needed
,
1871 .fields
= (VMStateField
[]) {
1872 VMSTATE_QTAILQ_V(pending_events
, SpaprMachineState
, 1,
1873 vmstate_spapr_event_entry
, SpaprEventLogEntry
, next
),
1874 VMSTATE_END_OF_LIST()
1878 static bool spapr_ov5_cas_needed(void *opaque
)
1880 SpaprMachineState
*spapr
= opaque
;
1881 SpaprOptionVector
*ov5_mask
= spapr_ovec_new();
1884 /* Prior to the introduction of SpaprOptionVector, we had two option
1885 * vectors we dealt with: OV5_FORM1_AFFINITY, and OV5_DRCONF_MEMORY.
1886 * Both of these options encode machine topology into the device-tree
1887 * in such a way that the now-booted OS should still be able to interact
1888 * appropriately with QEMU regardless of what options were actually
1889 * negotiatied on the source side.
1891 * As such, we can avoid migrating the CAS-negotiated options if these
1892 * are the only options available on the current machine/platform.
1893 * Since these are the only options available for pseries-2.7 and
1894 * earlier, this allows us to maintain old->new/new->old migration
1897 * For QEMU 2.8+, there are additional CAS-negotiatable options available
1898 * via default pseries-2.8 machines and explicit command-line parameters.
1899 * Some of these options, like OV5_HP_EVT, *do* require QEMU to be aware
1900 * of the actual CAS-negotiated values to continue working properly. For
1901 * example, availability of memory unplug depends on knowing whether
1902 * OV5_HP_EVT was negotiated via CAS.
1904 * Thus, for any cases where the set of available CAS-negotiatable
1905 * options extends beyond OV5_FORM1_AFFINITY and OV5_DRCONF_MEMORY, we
1906 * include the CAS-negotiated options in the migration stream, unless
1907 * if they affect boot time behaviour only.
1909 spapr_ovec_set(ov5_mask
, OV5_FORM1_AFFINITY
);
1910 spapr_ovec_set(ov5_mask
, OV5_DRCONF_MEMORY
);
1911 spapr_ovec_set(ov5_mask
, OV5_DRMEM_V2
);
1913 /* We need extra information if we have any bits outside the mask
1915 cas_needed
= !spapr_ovec_subset(spapr
->ov5
, ov5_mask
);
1917 spapr_ovec_cleanup(ov5_mask
);
1922 static const VMStateDescription vmstate_spapr_ov5_cas
= {
1923 .name
= "spapr_option_vector_ov5_cas",
1925 .minimum_version_id
= 1,
1926 .needed
= spapr_ov5_cas_needed
,
1927 .fields
= (VMStateField
[]) {
1928 VMSTATE_STRUCT_POINTER_V(ov5_cas
, SpaprMachineState
, 1,
1929 vmstate_spapr_ovec
, SpaprOptionVector
),
1930 VMSTATE_END_OF_LIST()
1934 static bool spapr_patb_entry_needed(void *opaque
)
1936 SpaprMachineState
*spapr
= opaque
;
1938 return !!spapr
->patb_entry
;
1941 static const VMStateDescription vmstate_spapr_patb_entry
= {
1942 .name
= "spapr_patb_entry",
1944 .minimum_version_id
= 1,
1945 .needed
= spapr_patb_entry_needed
,
1946 .fields
= (VMStateField
[]) {
1947 VMSTATE_UINT64(patb_entry
, SpaprMachineState
),
1948 VMSTATE_END_OF_LIST()
1952 static bool spapr_irq_map_needed(void *opaque
)
1954 SpaprMachineState
*spapr
= opaque
;
1956 return spapr
->irq_map
&& !bitmap_empty(spapr
->irq_map
, spapr
->irq_map_nr
);
1959 static const VMStateDescription vmstate_spapr_irq_map
= {
1960 .name
= "spapr_irq_map",
1962 .minimum_version_id
= 1,
1963 .needed
= spapr_irq_map_needed
,
1964 .fields
= (VMStateField
[]) {
1965 VMSTATE_BITMAP(irq_map
, SpaprMachineState
, 0, irq_map_nr
),
1966 VMSTATE_END_OF_LIST()
1970 static bool spapr_dtb_needed(void *opaque
)
1972 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(opaque
);
1974 return smc
->update_dt_enabled
;
1977 static int spapr_dtb_pre_load(void *opaque
)
1979 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
1981 g_free(spapr
->fdt_blob
);
1982 spapr
->fdt_blob
= NULL
;
1983 spapr
->fdt_size
= 0;
1988 static const VMStateDescription vmstate_spapr_dtb
= {
1989 .name
= "spapr_dtb",
1991 .minimum_version_id
= 1,
1992 .needed
= spapr_dtb_needed
,
1993 .pre_load
= spapr_dtb_pre_load
,
1994 .fields
= (VMStateField
[]) {
1995 VMSTATE_UINT32(fdt_initial_size
, SpaprMachineState
),
1996 VMSTATE_UINT32(fdt_size
, SpaprMachineState
),
1997 VMSTATE_VBUFFER_ALLOC_UINT32(fdt_blob
, SpaprMachineState
, 0, NULL
,
1999 VMSTATE_END_OF_LIST()
2003 static bool spapr_fwnmi_needed(void *opaque
)
2005 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
2007 return spapr
->fwnmi_machine_check_addr
!= -1;
2010 static int spapr_fwnmi_pre_save(void *opaque
)
2012 SpaprMachineState
*spapr
= (SpaprMachineState
*)opaque
;
2015 * Check if machine check handling is in progress and print a
2018 if (spapr
->fwnmi_machine_check_interlock
!= -1) {
2019 warn_report("A machine check is being handled during migration. The"
2020 "handler may run and log hardware error on the destination");
2026 static const VMStateDescription vmstate_spapr_fwnmi
= {
2027 .name
= "spapr_fwnmi",
2029 .minimum_version_id
= 1,
2030 .needed
= spapr_fwnmi_needed
,
2031 .pre_save
= spapr_fwnmi_pre_save
,
2032 .fields
= (VMStateField
[]) {
2033 VMSTATE_UINT64(fwnmi_system_reset_addr
, SpaprMachineState
),
2034 VMSTATE_UINT64(fwnmi_machine_check_addr
, SpaprMachineState
),
2035 VMSTATE_INT32(fwnmi_machine_check_interlock
, SpaprMachineState
),
2036 VMSTATE_END_OF_LIST()
2040 static const VMStateDescription vmstate_spapr
= {
2043 .minimum_version_id
= 1,
2044 .pre_load
= spapr_pre_load
,
2045 .post_load
= spapr_post_load
,
2046 .pre_save
= spapr_pre_save
,
2047 .fields
= (VMStateField
[]) {
2048 /* used to be @next_irq */
2049 VMSTATE_UNUSED_BUFFER(version_before_3
, 0, 4),
2052 VMSTATE_UINT64_TEST(rtc_offset
, SpaprMachineState
, version_before_3
),
2054 VMSTATE_PPC_TIMEBASE_V(tb
, SpaprMachineState
, 2),
2055 VMSTATE_END_OF_LIST()
2057 .subsections
= (const VMStateDescription
*[]) {
2058 &vmstate_spapr_ov5_cas
,
2059 &vmstate_spapr_patb_entry
,
2060 &vmstate_spapr_pending_events
,
2061 &vmstate_spapr_cap_htm
,
2062 &vmstate_spapr_cap_vsx
,
2063 &vmstate_spapr_cap_dfp
,
2064 &vmstate_spapr_cap_cfpc
,
2065 &vmstate_spapr_cap_sbbc
,
2066 &vmstate_spapr_cap_ibs
,
2067 &vmstate_spapr_cap_hpt_maxpagesize
,
2068 &vmstate_spapr_irq_map
,
2069 &vmstate_spapr_cap_nested_kvm_hv
,
2071 &vmstate_spapr_cap_large_decr
,
2072 &vmstate_spapr_cap_ccf_assist
,
2073 &vmstate_spapr_cap_fwnmi
,
2074 &vmstate_spapr_fwnmi
,
2079 static int htab_save_setup(QEMUFile
*f
, void *opaque
)
2081 SpaprMachineState
*spapr
= opaque
;
2083 /* "Iteration" header */
2084 if (!spapr
->htab_shift
) {
2085 qemu_put_be32(f
, -1);
2087 qemu_put_be32(f
, spapr
->htab_shift
);
2091 spapr
->htab_save_index
= 0;
2092 spapr
->htab_first_pass
= true;
2094 if (spapr
->htab_shift
) {
2095 assert(kvm_enabled());
2103 static void htab_save_chunk(QEMUFile
*f
, SpaprMachineState
*spapr
,
2104 int chunkstart
, int n_valid
, int n_invalid
)
2106 qemu_put_be32(f
, chunkstart
);
2107 qemu_put_be16(f
, n_valid
);
2108 qemu_put_be16(f
, n_invalid
);
2109 qemu_put_buffer(f
, HPTE(spapr
->htab
, chunkstart
),
2110 HASH_PTE_SIZE_64
* n_valid
);
2113 static void htab_save_end_marker(QEMUFile
*f
)
2115 qemu_put_be32(f
, 0);
2116 qemu_put_be16(f
, 0);
2117 qemu_put_be16(f
, 0);
2120 static void htab_save_first_pass(QEMUFile
*f
, SpaprMachineState
*spapr
,
2123 bool has_timeout
= max_ns
!= -1;
2124 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
2125 int index
= spapr
->htab_save_index
;
2126 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
2128 assert(spapr
->htab_first_pass
);
2133 /* Consume invalid HPTEs */
2134 while ((index
< htabslots
)
2135 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2136 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2140 /* Consume valid HPTEs */
2142 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
2143 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2144 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2148 if (index
> chunkstart
) {
2149 int n_valid
= index
- chunkstart
;
2151 htab_save_chunk(f
, spapr
, chunkstart
, n_valid
, 0);
2154 (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
2158 } while ((index
< htabslots
) && !qemu_file_rate_limit(f
));
2160 if (index
>= htabslots
) {
2161 assert(index
== htabslots
);
2163 spapr
->htab_first_pass
= false;
2165 spapr
->htab_save_index
= index
;
2168 static int htab_save_later_pass(QEMUFile
*f
, SpaprMachineState
*spapr
,
2171 bool final
= max_ns
< 0;
2172 int htabslots
= HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
;
2173 int examined
= 0, sent
= 0;
2174 int index
= spapr
->htab_save_index
;
2175 int64_t starttime
= qemu_clock_get_ns(QEMU_CLOCK_REALTIME
);
2177 assert(!spapr
->htab_first_pass
);
2180 int chunkstart
, invalidstart
;
2182 /* Consume non-dirty HPTEs */
2183 while ((index
< htabslots
)
2184 && !HPTE_DIRTY(HPTE(spapr
->htab
, index
))) {
2190 /* Consume valid dirty HPTEs */
2191 while ((index
< htabslots
) && (index
- chunkstart
< USHRT_MAX
)
2192 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
2193 && HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2194 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2199 invalidstart
= index
;
2200 /* Consume invalid dirty HPTEs */
2201 while ((index
< htabslots
) && (index
- invalidstart
< USHRT_MAX
)
2202 && HPTE_DIRTY(HPTE(spapr
->htab
, index
))
2203 && !HPTE_VALID(HPTE(spapr
->htab
, index
))) {
2204 CLEAN_HPTE(HPTE(spapr
->htab
, index
));
2209 if (index
> chunkstart
) {
2210 int n_valid
= invalidstart
- chunkstart
;
2211 int n_invalid
= index
- invalidstart
;
2213 htab_save_chunk(f
, spapr
, chunkstart
, n_valid
, n_invalid
);
2214 sent
+= index
- chunkstart
;
2216 if (!final
&& (qemu_clock_get_ns(QEMU_CLOCK_REALTIME
) - starttime
) > max_ns
) {
2221 if (examined
>= htabslots
) {
2225 if (index
>= htabslots
) {
2226 assert(index
== htabslots
);
2229 } while ((examined
< htabslots
) && (!qemu_file_rate_limit(f
) || final
));
2231 if (index
>= htabslots
) {
2232 assert(index
== htabslots
);
2236 spapr
->htab_save_index
= index
;
2238 return (examined
>= htabslots
) && (sent
== 0) ? 1 : 0;
2241 #define MAX_ITERATION_NS 5000000 /* 5 ms */
2242 #define MAX_KVM_BUF_SIZE 2048
2244 static int htab_save_iterate(QEMUFile
*f
, void *opaque
)
2246 SpaprMachineState
*spapr
= opaque
;
2250 /* Iteration header */
2251 if (!spapr
->htab_shift
) {
2252 qemu_put_be32(f
, -1);
2255 qemu_put_be32(f
, 0);
2259 assert(kvm_enabled());
2261 fd
= get_htab_fd(spapr
);
2266 rc
= kvmppc_save_htab(f
, fd
, MAX_KVM_BUF_SIZE
, MAX_ITERATION_NS
);
2270 } else if (spapr
->htab_first_pass
) {
2271 htab_save_first_pass(f
, spapr
, MAX_ITERATION_NS
);
2273 rc
= htab_save_later_pass(f
, spapr
, MAX_ITERATION_NS
);
2276 htab_save_end_marker(f
);
2281 static int htab_save_complete(QEMUFile
*f
, void *opaque
)
2283 SpaprMachineState
*spapr
= opaque
;
2286 /* Iteration header */
2287 if (!spapr
->htab_shift
) {
2288 qemu_put_be32(f
, -1);
2291 qemu_put_be32(f
, 0);
2297 assert(kvm_enabled());
2299 fd
= get_htab_fd(spapr
);
2304 rc
= kvmppc_save_htab(f
, fd
, MAX_KVM_BUF_SIZE
, -1);
2309 if (spapr
->htab_first_pass
) {
2310 htab_save_first_pass(f
, spapr
, -1);
2312 htab_save_later_pass(f
, spapr
, -1);
2316 htab_save_end_marker(f
);
2321 static int htab_load(QEMUFile
*f
, void *opaque
, int version_id
)
2323 SpaprMachineState
*spapr
= opaque
;
2324 uint32_t section_hdr
;
2326 Error
*local_err
= NULL
;
2328 if (version_id
< 1 || version_id
> 1) {
2329 error_report("htab_load() bad version");
2333 section_hdr
= qemu_get_be32(f
);
2335 if (section_hdr
== -1) {
2336 spapr_free_hpt(spapr
);
2341 /* First section gives the htab size */
2342 spapr_reallocate_hpt(spapr
, section_hdr
, &local_err
);
2344 error_report_err(local_err
);
2351 assert(kvm_enabled());
2353 fd
= kvmppc_get_htab_fd(true, 0, &local_err
);
2355 error_report_err(local_err
);
2362 uint16_t n_valid
, n_invalid
;
2364 index
= qemu_get_be32(f
);
2365 n_valid
= qemu_get_be16(f
);
2366 n_invalid
= qemu_get_be16(f
);
2368 if ((index
== 0) && (n_valid
== 0) && (n_invalid
== 0)) {
2373 if ((index
+ n_valid
+ n_invalid
) >
2374 (HTAB_SIZE(spapr
) / HASH_PTE_SIZE_64
)) {
2375 /* Bad index in stream */
2377 "htab_load() bad index %d (%hd+%hd entries) in htab stream (htab_shift=%d)",
2378 index
, n_valid
, n_invalid
, spapr
->htab_shift
);
2384 qemu_get_buffer(f
, HPTE(spapr
->htab
, index
),
2385 HASH_PTE_SIZE_64
* n_valid
);
2388 memset(HPTE(spapr
->htab
, index
+ n_valid
), 0,
2389 HASH_PTE_SIZE_64
* n_invalid
);
2396 rc
= kvmppc_load_htab_chunk(f
, fd
, index
, n_valid
, n_invalid
);
2411 static void htab_save_cleanup(void *opaque
)
2413 SpaprMachineState
*spapr
= opaque
;
2415 close_htab_fd(spapr
);
2418 static SaveVMHandlers savevm_htab_handlers
= {
2419 .save_setup
= htab_save_setup
,
2420 .save_live_iterate
= htab_save_iterate
,
2421 .save_live_complete_precopy
= htab_save_complete
,
2422 .save_cleanup
= htab_save_cleanup
,
2423 .load_state
= htab_load
,
2426 static void spapr_boot_set(void *opaque
, const char *boot_device
,
2429 MachineState
*machine
= MACHINE(opaque
);
2430 machine
->boot_order
= g_strdup(boot_device
);
2433 static void spapr_create_lmb_dr_connectors(SpaprMachineState
*spapr
)
2435 MachineState
*machine
= MACHINE(spapr
);
2436 uint64_t lmb_size
= SPAPR_MEMORY_BLOCK_SIZE
;
2437 uint32_t nr_lmbs
= (machine
->maxram_size
- machine
->ram_size
)/lmb_size
;
2440 for (i
= 0; i
< nr_lmbs
; i
++) {
2443 addr
= i
* lmb_size
+ machine
->device_memory
->base
;
2444 spapr_dr_connector_new(OBJECT(spapr
), TYPE_SPAPR_DRC_LMB
,
2450 * If RAM size, maxmem size and individual node mem sizes aren't aligned
2451 * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest
2452 * since we can't support such unaligned sizes with DRCONF_MEMORY.
2454 static void spapr_validate_node_memory(MachineState
*machine
, Error
**errp
)
2458 if (machine
->ram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2459 error_setg(errp
, "Memory size 0x" RAM_ADDR_FMT
2460 " is not aligned to %" PRIu64
" MiB",
2462 SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
2466 if (machine
->maxram_size
% SPAPR_MEMORY_BLOCK_SIZE
) {
2467 error_setg(errp
, "Maximum memory size 0x" RAM_ADDR_FMT
2468 " is not aligned to %" PRIu64
" MiB",
2470 SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
2474 for (i
= 0; i
< machine
->numa_state
->num_nodes
; i
++) {
2475 if (machine
->numa_state
->nodes
[i
].node_mem
% SPAPR_MEMORY_BLOCK_SIZE
) {
2477 "Node %d memory size 0x%" PRIx64
2478 " is not aligned to %" PRIu64
" MiB",
2479 i
, machine
->numa_state
->nodes
[i
].node_mem
,
2480 SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
2486 /* find cpu slot in machine->possible_cpus by core_id */
2487 static CPUArchId
*spapr_find_cpu_slot(MachineState
*ms
, uint32_t id
, int *idx
)
2489 int index
= id
/ ms
->smp
.threads
;
2491 if (index
>= ms
->possible_cpus
->len
) {
2497 return &ms
->possible_cpus
->cpus
[index
];
2500 static void spapr_set_vsmt_mode(SpaprMachineState
*spapr
, Error
**errp
)
2502 MachineState
*ms
= MACHINE(spapr
);
2503 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
2504 Error
*local_err
= NULL
;
2505 bool vsmt_user
= !!spapr
->vsmt
;
2506 int kvm_smt
= kvmppc_smt_threads();
2508 unsigned int smp_threads
= ms
->smp
.threads
;
2510 if (!kvm_enabled() && (smp_threads
> 1)) {
2511 error_setg(&local_err
, "TCG cannot support more than 1 thread/core "
2512 "on a pseries machine");
2515 if (!is_power_of_2(smp_threads
)) {
2516 error_setg(&local_err
, "Cannot support %d threads/core on a pseries "
2517 "machine because it must be a power of 2", smp_threads
);
2521 /* Detemine the VSMT mode to use: */
2523 if (spapr
->vsmt
< smp_threads
) {
2524 error_setg(&local_err
, "Cannot support VSMT mode %d"
2525 " because it must be >= threads/core (%d)",
2526 spapr
->vsmt
, smp_threads
);
2529 /* In this case, spapr->vsmt has been set by the command line */
2530 } else if (!smc
->smp_threads_vsmt
) {
2532 * Default VSMT value is tricky, because we need it to be as
2533 * consistent as possible (for migration), but this requires
2534 * changing it for at least some existing cases. We pick 8 as
2535 * the value that we'd get with KVM on POWER8, the
2536 * overwhelmingly common case in production systems.
2538 spapr
->vsmt
= MAX(8, smp_threads
);
2540 spapr
->vsmt
= smp_threads
;
2543 /* KVM: If necessary, set the SMT mode: */
2544 if (kvm_enabled() && (spapr
->vsmt
!= kvm_smt
)) {
2545 ret
= kvmppc_set_smt_threads(spapr
->vsmt
);
2547 /* Looks like KVM isn't able to change VSMT mode */
2548 error_setg(&local_err
,
2549 "Failed to set KVM's VSMT mode to %d (errno %d)",
2551 /* We can live with that if the default one is big enough
2552 * for the number of threads, and a submultiple of the one
2553 * we want. In this case we'll waste some vcpu ids, but
2554 * behaviour will be correct */
2555 if ((kvm_smt
>= smp_threads
) && ((spapr
->vsmt
% kvm_smt
) == 0)) {
2556 warn_report_err(local_err
);
2561 error_append_hint(&local_err
,
2562 "On PPC, a VM with %d threads/core"
2563 " on a host with %d threads/core"
2564 " requires the use of VSMT mode %d.\n",
2565 smp_threads
, kvm_smt
, spapr
->vsmt
);
2567 kvmppc_error_append_smt_possible_hint(&local_err
);
2572 /* else TCG: nothing to do currently */
2574 error_propagate(errp
, local_err
);
2577 static void spapr_init_cpus(SpaprMachineState
*spapr
)
2579 MachineState
*machine
= MACHINE(spapr
);
2580 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
2581 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
2582 const char *type
= spapr_get_cpu_core_type(machine
->cpu_type
);
2583 const CPUArchIdList
*possible_cpus
;
2584 unsigned int smp_cpus
= machine
->smp
.cpus
;
2585 unsigned int smp_threads
= machine
->smp
.threads
;
2586 unsigned int max_cpus
= machine
->smp
.max_cpus
;
2587 int boot_cores_nr
= smp_cpus
/ smp_threads
;
2590 possible_cpus
= mc
->possible_cpu_arch_ids(machine
);
2591 if (mc
->has_hotpluggable_cpus
) {
2592 if (smp_cpus
% smp_threads
) {
2593 error_report("smp_cpus (%u) must be multiple of threads (%u)",
2594 smp_cpus
, smp_threads
);
2597 if (max_cpus
% smp_threads
) {
2598 error_report("max_cpus (%u) must be multiple of threads (%u)",
2599 max_cpus
, smp_threads
);
2603 if (max_cpus
!= smp_cpus
) {
2604 error_report("This machine version does not support CPU hotplug");
2607 boot_cores_nr
= possible_cpus
->len
;
2610 if (smc
->pre_2_10_has_unused_icps
) {
2613 for (i
= 0; i
< spapr_max_server_number(spapr
); i
++) {
2614 /* Dummy entries get deregistered when real ICPState objects
2615 * are registered during CPU core hotplug.
2617 pre_2_10_vmstate_register_dummy_icp(i
);
2621 for (i
= 0; i
< possible_cpus
->len
; i
++) {
2622 int core_id
= i
* smp_threads
;
2624 if (mc
->has_hotpluggable_cpus
) {
2625 spapr_dr_connector_new(OBJECT(spapr
), TYPE_SPAPR_DRC_CPU
,
2626 spapr_vcpu_id(spapr
, core_id
));
2629 if (i
< boot_cores_nr
) {
2630 Object
*core
= object_new(type
);
2631 int nr_threads
= smp_threads
;
2633 /* Handle the partially filled core for older machine types */
2634 if ((i
+ 1) * smp_threads
>= smp_cpus
) {
2635 nr_threads
= smp_cpus
- i
* smp_threads
;
2638 object_property_set_int(core
, nr_threads
, "nr-threads",
2640 object_property_set_int(core
, core_id
, CPU_CORE_PROP_CORE_ID
,
2642 object_property_set_bool(core
, true, "realized", &error_fatal
);
2649 static PCIHostState
*spapr_create_default_phb(void)
2653 dev
= qdev_create(NULL
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
2654 qdev_prop_set_uint32(dev
, "index", 0);
2655 qdev_init_nofail(dev
);
2657 return PCI_HOST_BRIDGE(dev
);
2660 static hwaddr
spapr_rma_size(SpaprMachineState
*spapr
, Error
**errp
)
2662 MachineState
*machine
= MACHINE(spapr
);
2663 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
2664 hwaddr rma_size
= machine
->ram_size
;
2665 hwaddr node0_size
= spapr_node0_size(machine
);
2667 /* RMA has to fit in the first NUMA node */
2668 rma_size
= MIN(rma_size
, node0_size
);
2671 * VRMA access is via a special 1TiB SLB mapping, so the RMA can
2674 rma_size
= MIN(rma_size
, 1 * TiB
);
2677 * Clamp the RMA size based on machine type. This is for
2678 * migration compatibility with older qemu versions, which limited
2679 * the RMA size for complicated and mostly bad reasons.
2681 if (smc
->rma_limit
) {
2682 rma_size
= MIN(rma_size
, smc
->rma_limit
);
2685 if (rma_size
< MIN_RMA_SLOF
) {
2687 "pSeries SLOF firmware requires >= %" HWADDR_PRIx
2688 "ldMiB guest RMA (Real Mode Area memory)",
2689 MIN_RMA_SLOF
/ MiB
);
2696 /* pSeries LPAR / sPAPR hardware init */
2697 static void spapr_machine_init(MachineState
*machine
)
2699 SpaprMachineState
*spapr
= SPAPR_MACHINE(machine
);
2700 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(machine
);
2701 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
2702 const char *kernel_filename
= machine
->kernel_filename
;
2703 const char *initrd_filename
= machine
->initrd_filename
;
2706 MemoryRegion
*sysmem
= get_system_memory();
2707 long load_limit
, fw_size
;
2709 Error
*resize_hpt_err
= NULL
;
2711 msi_nonbroken
= true;
2713 QLIST_INIT(&spapr
->phbs
);
2714 QTAILQ_INIT(&spapr
->pending_dimm_unplugs
);
2716 /* Determine capabilities to run with */
2717 spapr_caps_init(spapr
);
2719 kvmppc_check_papr_resize_hpt(&resize_hpt_err
);
2720 if (spapr
->resize_hpt
== SPAPR_RESIZE_HPT_DEFAULT
) {
2722 * If the user explicitly requested a mode we should either
2723 * supply it, or fail completely (which we do below). But if
2724 * it's not set explicitly, we reset our mode to something
2727 if (resize_hpt_err
) {
2728 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DISABLED
;
2729 error_free(resize_hpt_err
);
2730 resize_hpt_err
= NULL
;
2732 spapr
->resize_hpt
= smc
->resize_hpt_default
;
2736 assert(spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DEFAULT
);
2738 if ((spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) && resize_hpt_err
) {
2740 * User requested HPT resize, but this host can't supply it. Bail out
2742 error_report_err(resize_hpt_err
);
2746 spapr
->rma_size
= spapr_rma_size(spapr
, &error_fatal
);
2748 /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */
2749 load_limit
= MIN(spapr
->rma_size
, RTAS_MAX_ADDR
) - FW_OVERHEAD
;
2752 * VSMT must be set in order to be able to compute VCPU ids, ie to
2753 * call spapr_max_server_number() or spapr_vcpu_id().
2755 spapr_set_vsmt_mode(spapr
, &error_fatal
);
2757 /* Set up Interrupt Controller before we create the VCPUs */
2758 spapr_irq_init(spapr
, &error_fatal
);
2760 /* Set up containers for ibm,client-architecture-support negotiated options
2762 spapr
->ov5
= spapr_ovec_new();
2763 spapr
->ov5_cas
= spapr_ovec_new();
2765 if (smc
->dr_lmb_enabled
) {
2766 spapr_ovec_set(spapr
->ov5
, OV5_DRCONF_MEMORY
);
2767 spapr_validate_node_memory(machine
, &error_fatal
);
2770 spapr_ovec_set(spapr
->ov5
, OV5_FORM1_AFFINITY
);
2772 /* advertise support for dedicated HP event source to guests */
2773 if (spapr
->use_hotplug_event_source
) {
2774 spapr_ovec_set(spapr
->ov5
, OV5_HP_EVT
);
2777 /* advertise support for HPT resizing */
2778 if (spapr
->resize_hpt
!= SPAPR_RESIZE_HPT_DISABLED
) {
2779 spapr_ovec_set(spapr
->ov5
, OV5_HPT_RESIZE
);
2782 /* advertise support for ibm,dyamic-memory-v2 */
2783 spapr_ovec_set(spapr
->ov5
, OV5_DRMEM_V2
);
2785 /* advertise XIVE on POWER9 machines */
2786 if (spapr
->irq
->xive
) {
2787 spapr_ovec_set(spapr
->ov5
, OV5_XIVE_EXPLOIT
);
2791 spapr_init_cpus(spapr
);
2794 * check we don't have a memory-less/cpu-less NUMA node
2795 * Firmware relies on the existing memory/cpu topology to provide the
2796 * NUMA topology to the kernel.
2797 * And the linux kernel needs to know the NUMA topology at start
2798 * to be able to hotplug CPUs later.
2800 if (machine
->numa_state
->num_nodes
) {
2801 for (i
= 0; i
< machine
->numa_state
->num_nodes
; ++i
) {
2802 /* check for memory-less node */
2803 if (machine
->numa_state
->nodes
[i
].node_mem
== 0) {
2806 /* check for cpu-less node */
2808 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
2809 if (cpu
->node_id
== i
) {
2814 /* memory-less and cpu-less node */
2817 "Memory-less/cpu-less nodes are not supported (node %d)",
2827 * NVLink2-connected GPU RAM needs to be placed on a separate NUMA node.
2828 * We assign a new numa ID per GPU in spapr_pci_collect_nvgpu() which is
2829 * called from vPHB reset handler so we initialize the counter here.
2830 * If no NUMA is configured from the QEMU side, we start from 1 as GPU RAM
2831 * must be equally distant from any other node.
2832 * The final value of spapr->gpu_numa_id is going to be written to
2833 * max-associativity-domains in spapr_build_fdt().
2835 spapr
->gpu_numa_id
= MAX(1, machine
->numa_state
->num_nodes
);
2837 if ((!kvm_enabled() || kvmppc_has_cap_mmu_radix()) &&
2838 ppc_type_check_compat(machine
->cpu_type
, CPU_POWERPC_LOGICAL_3_00
, 0,
2839 spapr
->max_compat_pvr
)) {
2840 /* KVM and TCG always allow GTSE with radix... */
2841 spapr_ovec_set(spapr
->ov5
, OV5_MMU_RADIX_GTSE
);
2843 /* ... but not with hash (currently). */
2845 if (kvm_enabled()) {
2846 /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
2847 kvmppc_enable_logical_ci_hcalls();
2848 kvmppc_enable_set_mode_hcall();
2850 /* H_CLEAR_MOD/_REF are mandatory in PAPR, but off by default */
2851 kvmppc_enable_clear_ref_mod_hcalls();
2853 /* Enable H_PAGE_INIT */
2854 kvmppc_enable_h_page_init();
2858 memory_region_add_subregion(sysmem
, 0, machine
->ram
);
2860 /* always allocate the device memory information */
2861 machine
->device_memory
= g_malloc0(sizeof(*machine
->device_memory
));
2863 /* initialize hotplug memory address space */
2864 if (machine
->ram_size
< machine
->maxram_size
) {
2865 ram_addr_t device_mem_size
= machine
->maxram_size
- machine
->ram_size
;
2867 * Limit the number of hotpluggable memory slots to half the number
2868 * slots that KVM supports, leaving the other half for PCI and other
2869 * devices. However ensure that number of slots doesn't drop below 32.
2871 int max_memslots
= kvm_enabled() ? kvm_get_max_memslots() / 2 :
2872 SPAPR_MAX_RAM_SLOTS
;
2874 if (max_memslots
< SPAPR_MAX_RAM_SLOTS
) {
2875 max_memslots
= SPAPR_MAX_RAM_SLOTS
;
2877 if (machine
->ram_slots
> max_memslots
) {
2878 error_report("Specified number of memory slots %"
2879 PRIu64
" exceeds max supported %d",
2880 machine
->ram_slots
, max_memslots
);
2884 machine
->device_memory
->base
= ROUND_UP(machine
->ram_size
,
2885 SPAPR_DEVICE_MEM_ALIGN
);
2886 memory_region_init(&machine
->device_memory
->mr
, OBJECT(spapr
),
2887 "device-memory", device_mem_size
);
2888 memory_region_add_subregion(sysmem
, machine
->device_memory
->base
,
2889 &machine
->device_memory
->mr
);
2892 if (smc
->dr_lmb_enabled
) {
2893 spapr_create_lmb_dr_connectors(spapr
);
2896 if (spapr_get_cap(spapr
, SPAPR_CAP_FWNMI
) == SPAPR_CAP_ON
) {
2897 /* Create the error string for live migration blocker */
2898 error_setg(&spapr
->fwnmi_migration_blocker
,
2899 "A machine check is being handled during migration. The handler"
2900 "may run and log hardware error on the destination");
2903 if (mc
->nvdimm_supported
) {
2904 spapr_create_nvdimm_dr_connectors(spapr
);
2907 /* Set up RTAS event infrastructure */
2908 spapr_events_init(spapr
);
2910 /* Set up the RTC RTAS interfaces */
2911 spapr_rtc_create(spapr
);
2913 /* Set up VIO bus */
2914 spapr
->vio_bus
= spapr_vio_bus_init();
2916 for (i
= 0; i
< serial_max_hds(); i
++) {
2918 spapr_vty_create(spapr
->vio_bus
, serial_hd(i
));
2922 /* We always have at least the nvram device on VIO */
2923 spapr_create_nvram(spapr
);
2926 * Setup hotplug / dynamic-reconfiguration connectors. top-level
2927 * connectors (described in root DT node's "ibm,drc-types" property)
2928 * are pre-initialized here. additional child connectors (such as
2929 * connectors for a PHBs PCI slots) are added as needed during their
2930 * parent's realization.
2932 if (smc
->dr_phb_enabled
) {
2933 for (i
= 0; i
< SPAPR_MAX_PHBS
; i
++) {
2934 spapr_dr_connector_new(OBJECT(machine
), TYPE_SPAPR_DRC_PHB
, i
);
2939 spapr_pci_rtas_init();
2941 phb
= spapr_create_default_phb();
2943 for (i
= 0; i
< nb_nics
; i
++) {
2944 NICInfo
*nd
= &nd_table
[i
];
2947 nd
->model
= g_strdup("spapr-vlan");
2950 if (g_str_equal(nd
->model
, "spapr-vlan") ||
2951 g_str_equal(nd
->model
, "ibmveth")) {
2952 spapr_vlan_create(spapr
->vio_bus
, nd
);
2954 pci_nic_init_nofail(&nd_table
[i
], phb
->bus
, nd
->model
, NULL
);
2958 for (i
= 0; i
<= drive_get_max_bus(IF_SCSI
); i
++) {
2959 spapr_vscsi_create(spapr
->vio_bus
);
2963 if (spapr_vga_init(phb
->bus
, &error_fatal
)) {
2964 spapr
->has_graphics
= true;
2965 machine
->usb
|= defaults_enabled() && !machine
->usb_disabled
;
2969 if (smc
->use_ohci_by_default
) {
2970 pci_create_simple(phb
->bus
, -1, "pci-ohci");
2972 pci_create_simple(phb
->bus
, -1, "nec-usb-xhci");
2975 if (spapr
->has_graphics
) {
2976 USBBus
*usb_bus
= usb_bus_find(-1);
2978 usb_create_simple(usb_bus
, "usb-kbd");
2979 usb_create_simple(usb_bus
, "usb-mouse");
2983 if (kernel_filename
) {
2984 uint64_t lowaddr
= 0;
2986 spapr
->kernel_size
= load_elf(kernel_filename
, NULL
,
2987 translate_kernel_address
, spapr
,
2988 NULL
, &lowaddr
, NULL
, NULL
, 1,
2989 PPC_ELF_MACHINE
, 0, 0);
2990 if (spapr
->kernel_size
== ELF_LOAD_WRONG_ENDIAN
) {
2991 spapr
->kernel_size
= load_elf(kernel_filename
, NULL
,
2992 translate_kernel_address
, spapr
, NULL
,
2993 &lowaddr
, NULL
, NULL
, 0,
2996 spapr
->kernel_le
= spapr
->kernel_size
> 0;
2998 if (spapr
->kernel_size
< 0) {
2999 error_report("error loading %s: %s", kernel_filename
,
3000 load_elf_strerror(spapr
->kernel_size
));
3005 if (initrd_filename
) {
3006 /* Try to locate the initrd in the gap between the kernel
3007 * and the firmware. Add a bit of space just in case
3009 spapr
->initrd_base
= (spapr
->kernel_addr
+ spapr
->kernel_size
3010 + 0x1ffff) & ~0xffff;
3011 spapr
->initrd_size
= load_image_targphys(initrd_filename
,
3014 - spapr
->initrd_base
);
3015 if (spapr
->initrd_size
< 0) {
3016 error_report("could not load initial ram disk '%s'",
3023 if (bios_name
== NULL
) {
3024 bios_name
= FW_FILE_NAME
;
3026 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
3028 error_report("Could not find LPAR firmware '%s'", bios_name
);
3031 fw_size
= load_image_targphys(filename
, 0, FW_MAX_SIZE
);
3033 error_report("Could not load LPAR firmware '%s'", filename
);
3038 /* FIXME: Should register things through the MachineState's qdev
3039 * interface, this is a legacy from the sPAPREnvironment structure
3040 * which predated MachineState but had a similar function */
3041 vmstate_register(NULL
, 0, &vmstate_spapr
, spapr
);
3042 register_savevm_live("spapr/htab", VMSTATE_INSTANCE_ID_ANY
, 1,
3043 &savevm_htab_handlers
, spapr
);
3045 qbus_set_hotplug_handler(sysbus_get_default(), OBJECT(machine
),
3048 qemu_register_boot_set(spapr_boot_set
, spapr
);
3051 * Nothing needs to be done to resume a suspended guest because
3052 * suspending does not change the machine state, so no need for
3053 * a ->wakeup method.
3055 qemu_register_wakeup_support();
3057 if (kvm_enabled()) {
3058 /* to stop and start vmclock */
3059 qemu_add_vm_change_state_handler(cpu_ppc_clock_vm_state_change
,
3062 kvmppc_spapr_enable_inkernel_multitce();
3065 qemu_cond_init(&spapr
->fwnmi_machine_check_interlock_cond
);
3068 static int spapr_kvm_type(MachineState
*machine
, const char *vm_type
)
3074 if (!strcmp(vm_type
, "HV")) {
3078 if (!strcmp(vm_type
, "PR")) {
3082 error_report("Unknown kvm-type specified '%s'", vm_type
);
3087 * Implementation of an interface to adjust firmware path
3088 * for the bootindex property handling.
3090 static char *spapr_get_fw_dev_path(FWPathProvider
*p
, BusState
*bus
,
3093 #define CAST(type, obj, name) \
3094 ((type *)object_dynamic_cast(OBJECT(obj), (name)))
3095 SCSIDevice
*d
= CAST(SCSIDevice
, dev
, TYPE_SCSI_DEVICE
);
3096 SpaprPhbState
*phb
= CAST(SpaprPhbState
, dev
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
3097 VHostSCSICommon
*vsc
= CAST(VHostSCSICommon
, dev
, TYPE_VHOST_SCSI_COMMON
);
3100 void *spapr
= CAST(void, bus
->parent
, "spapr-vscsi");
3101 VirtIOSCSI
*virtio
= CAST(VirtIOSCSI
, bus
->parent
, TYPE_VIRTIO_SCSI
);
3102 USBDevice
*usb
= CAST(USBDevice
, bus
->parent
, TYPE_USB_DEVICE
);
3106 * Replace "channel@0/disk@0,0" with "disk@8000000000000000":
3107 * In the top 16 bits of the 64-bit LUN, we use SRP luns of the form
3108 * 0x8000 | (target << 8) | (bus << 5) | lun
3109 * (see the "Logical unit addressing format" table in SAM5)
3111 unsigned id
= 0x8000 | (d
->id
<< 8) | (d
->channel
<< 5) | d
->lun
;
3112 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
3113 (uint64_t)id
<< 48);
3114 } else if (virtio
) {
3116 * We use SRP luns of the form 01000000 | (target << 8) | lun
3117 * in the top 32 bits of the 64-bit LUN
3118 * Note: the quote above is from SLOF and it is wrong,
3119 * the actual binding is:
3120 * swap 0100 or 10 << or 20 << ( target lun-id -- srplun )
3122 unsigned id
= 0x1000000 | (d
->id
<< 16) | d
->lun
;
3123 if (d
->lun
>= 256) {
3124 /* Use the LUN "flat space addressing method" */
3127 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
3128 (uint64_t)id
<< 32);
3131 * We use SRP luns of the form 01000000 | (usb-port << 16) | lun
3132 * in the top 32 bits of the 64-bit LUN
3134 unsigned usb_port
= atoi(usb
->port
->path
);
3135 unsigned id
= 0x1000000 | (usb_port
<< 16) | d
->lun
;
3136 return g_strdup_printf("%s@%"PRIX64
, qdev_fw_name(dev
),
3137 (uint64_t)id
<< 32);
3142 * SLOF probes the USB devices, and if it recognizes that the device is a
3143 * storage device, it changes its name to "storage" instead of "usb-host",
3144 * and additionally adds a child node for the SCSI LUN, so the correct
3145 * boot path in SLOF is something like .../storage@1/disk@xxx" instead.
3147 if (strcmp("usb-host", qdev_fw_name(dev
)) == 0) {
3148 USBDevice
*usbdev
= CAST(USBDevice
, dev
, TYPE_USB_DEVICE
);
3149 if (usb_host_dev_is_scsi_storage(usbdev
)) {
3150 return g_strdup_printf("storage@%s/disk", usbdev
->port
->path
);
3155 /* Replace "pci" with "pci@800000020000000" */
3156 return g_strdup_printf("pci@%"PRIX64
, phb
->buid
);
3160 /* Same logic as virtio above */
3161 unsigned id
= 0x1000000 | (vsc
->target
<< 16) | vsc
->lun
;
3162 return g_strdup_printf("disk@%"PRIX64
, (uint64_t)id
<< 32);
3165 if (g_str_equal("pci-bridge", qdev_fw_name(dev
))) {
3166 /* SLOF uses "pci" instead of "pci-bridge" for PCI bridges */
3167 PCIDevice
*pcidev
= CAST(PCIDevice
, dev
, TYPE_PCI_DEVICE
);
3168 return g_strdup_printf("pci@%x", PCI_SLOT(pcidev
->devfn
));
3174 static char *spapr_get_kvm_type(Object
*obj
, Error
**errp
)
3176 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3178 return g_strdup(spapr
->kvm_type
);
3181 static void spapr_set_kvm_type(Object
*obj
, const char *value
, Error
**errp
)
3183 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3185 g_free(spapr
->kvm_type
);
3186 spapr
->kvm_type
= g_strdup(value
);
3189 static bool spapr_get_modern_hotplug_events(Object
*obj
, Error
**errp
)
3191 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3193 return spapr
->use_hotplug_event_source
;
3196 static void spapr_set_modern_hotplug_events(Object
*obj
, bool value
,
3199 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3201 spapr
->use_hotplug_event_source
= value
;
3204 static bool spapr_get_msix_emulation(Object
*obj
, Error
**errp
)
3209 static char *spapr_get_resize_hpt(Object
*obj
, Error
**errp
)
3211 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3213 switch (spapr
->resize_hpt
) {
3214 case SPAPR_RESIZE_HPT_DEFAULT
:
3215 return g_strdup("default");
3216 case SPAPR_RESIZE_HPT_DISABLED
:
3217 return g_strdup("disabled");
3218 case SPAPR_RESIZE_HPT_ENABLED
:
3219 return g_strdup("enabled");
3220 case SPAPR_RESIZE_HPT_REQUIRED
:
3221 return g_strdup("required");
3223 g_assert_not_reached();
3226 static void spapr_set_resize_hpt(Object
*obj
, const char *value
, Error
**errp
)
3228 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3230 if (strcmp(value
, "default") == 0) {
3231 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DEFAULT
;
3232 } else if (strcmp(value
, "disabled") == 0) {
3233 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_DISABLED
;
3234 } else if (strcmp(value
, "enabled") == 0) {
3235 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_ENABLED
;
3236 } else if (strcmp(value
, "required") == 0) {
3237 spapr
->resize_hpt
= SPAPR_RESIZE_HPT_REQUIRED
;
3239 error_setg(errp
, "Bad value for \"resize-hpt\" property");
3243 static char *spapr_get_ic_mode(Object
*obj
, Error
**errp
)
3245 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3247 if (spapr
->irq
== &spapr_irq_xics_legacy
) {
3248 return g_strdup("legacy");
3249 } else if (spapr
->irq
== &spapr_irq_xics
) {
3250 return g_strdup("xics");
3251 } else if (spapr
->irq
== &spapr_irq_xive
) {
3252 return g_strdup("xive");
3253 } else if (spapr
->irq
== &spapr_irq_dual
) {
3254 return g_strdup("dual");
3256 g_assert_not_reached();
3259 static void spapr_set_ic_mode(Object
*obj
, const char *value
, Error
**errp
)
3261 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3263 if (SPAPR_MACHINE_GET_CLASS(spapr
)->legacy_irq_allocation
) {
3264 error_setg(errp
, "This machine only uses the legacy XICS backend, don't pass ic-mode");
3268 /* The legacy IRQ backend can not be set */
3269 if (strcmp(value
, "xics") == 0) {
3270 spapr
->irq
= &spapr_irq_xics
;
3271 } else if (strcmp(value
, "xive") == 0) {
3272 spapr
->irq
= &spapr_irq_xive
;
3273 } else if (strcmp(value
, "dual") == 0) {
3274 spapr
->irq
= &spapr_irq_dual
;
3276 error_setg(errp
, "Bad value for \"ic-mode\" property");
3280 static char *spapr_get_host_model(Object
*obj
, Error
**errp
)
3282 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3284 return g_strdup(spapr
->host_model
);
3287 static void spapr_set_host_model(Object
*obj
, const char *value
, Error
**errp
)
3289 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3291 g_free(spapr
->host_model
);
3292 spapr
->host_model
= g_strdup(value
);
3295 static char *spapr_get_host_serial(Object
*obj
, Error
**errp
)
3297 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3299 return g_strdup(spapr
->host_serial
);
3302 static void spapr_set_host_serial(Object
*obj
, const char *value
, Error
**errp
)
3304 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3306 g_free(spapr
->host_serial
);
3307 spapr
->host_serial
= g_strdup(value
);
3310 static void spapr_instance_init(Object
*obj
)
3312 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3313 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
3315 spapr
->htab_fd
= -1;
3316 spapr
->use_hotplug_event_source
= true;
3317 object_property_add_str(obj
, "kvm-type",
3318 spapr_get_kvm_type
, spapr_set_kvm_type
, NULL
);
3319 object_property_set_description(obj
, "kvm-type",
3320 "Specifies the KVM virtualization mode (HV, PR)",
3322 object_property_add_bool(obj
, "modern-hotplug-events",
3323 spapr_get_modern_hotplug_events
,
3324 spapr_set_modern_hotplug_events
,
3326 object_property_set_description(obj
, "modern-hotplug-events",
3327 "Use dedicated hotplug event mechanism in"
3328 " place of standard EPOW events when possible"
3329 " (required for memory hot-unplug support)",
3331 ppc_compat_add_property(obj
, "max-cpu-compat", &spapr
->max_compat_pvr
,
3332 "Maximum permitted CPU compatibility mode",
3335 object_property_add_str(obj
, "resize-hpt",
3336 spapr_get_resize_hpt
, spapr_set_resize_hpt
, NULL
);
3337 object_property_set_description(obj
, "resize-hpt",
3338 "Resizing of the Hash Page Table (enabled, disabled, required)",
3340 object_property_add_uint32_ptr(obj
, "vsmt",
3341 &spapr
->vsmt
, OBJ_PROP_FLAG_READWRITE
,
3343 object_property_set_description(obj
, "vsmt",
3344 "Virtual SMT: KVM behaves as if this were"
3345 " the host's SMT mode", &error_abort
);
3347 object_property_add_bool(obj
, "vfio-no-msix-emulation",
3348 spapr_get_msix_emulation
, NULL
, NULL
);
3350 object_property_add_uint64_ptr(obj
, "kernel-addr",
3351 &spapr
->kernel_addr
, OBJ_PROP_FLAG_READWRITE
,
3353 object_property_set_description(obj
, "kernel-addr",
3354 stringify(KERNEL_LOAD_ADDR
)
3355 " for -kernel is the default",
3357 spapr
->kernel_addr
= KERNEL_LOAD_ADDR
;
3358 /* The machine class defines the default interrupt controller mode */
3359 spapr
->irq
= smc
->irq
;
3360 object_property_add_str(obj
, "ic-mode", spapr_get_ic_mode
,
3361 spapr_set_ic_mode
, NULL
);
3362 object_property_set_description(obj
, "ic-mode",
3363 "Specifies the interrupt controller mode (xics, xive, dual)",
3366 object_property_add_str(obj
, "host-model",
3367 spapr_get_host_model
, spapr_set_host_model
,
3369 object_property_set_description(obj
, "host-model",
3370 "Host model to advertise in guest device tree", &error_abort
);
3371 object_property_add_str(obj
, "host-serial",
3372 spapr_get_host_serial
, spapr_set_host_serial
,
3374 object_property_set_description(obj
, "host-serial",
3375 "Host serial number to advertise in guest device tree", &error_abort
);
3378 static void spapr_machine_finalizefn(Object
*obj
)
3380 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
3382 g_free(spapr
->kvm_type
);
3385 void spapr_do_system_reset_on_cpu(CPUState
*cs
, run_on_cpu_data arg
)
3387 SpaprMachineState
*spapr
= SPAPR_MACHINE(qdev_get_machine());
3389 cpu_synchronize_state(cs
);
3390 /* If FWNMI is inactive, addr will be -1, which will deliver to 0x100 */
3391 if (spapr
->fwnmi_system_reset_addr
!= -1) {
3392 uint64_t rtas_addr
, addr
;
3393 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
3394 CPUPPCState
*env
= &cpu
->env
;
3396 /* get rtas addr from fdt */
3397 rtas_addr
= spapr_get_rtas_addr();
3399 qemu_system_guest_panicked(NULL
);
3403 addr
= rtas_addr
+ RTAS_ERROR_LOG_MAX
+ cs
->cpu_index
* sizeof(uint64_t)*2;
3404 stq_be_phys(&address_space_memory
, addr
, env
->gpr
[3]);
3405 stq_be_phys(&address_space_memory
, addr
+ sizeof(uint64_t), 0);
3408 ppc_cpu_do_system_reset(cs
, spapr
->fwnmi_system_reset_addr
);
3411 static void spapr_nmi(NMIState
*n
, int cpu_index
, Error
**errp
)
3416 async_run_on_cpu(cs
, spapr_do_system_reset_on_cpu
, RUN_ON_CPU_NULL
);
3420 int spapr_lmb_dt_populate(SpaprDrc
*drc
, SpaprMachineState
*spapr
,
3421 void *fdt
, int *fdt_start_offset
, Error
**errp
)
3426 addr
= spapr_drc_index(drc
) * SPAPR_MEMORY_BLOCK_SIZE
;
3427 node
= object_property_get_uint(OBJECT(drc
->dev
), PC_DIMM_NODE_PROP
,
3429 *fdt_start_offset
= spapr_dt_memory_node(fdt
, node
, addr
,
3430 SPAPR_MEMORY_BLOCK_SIZE
);
3434 static void spapr_add_lmbs(DeviceState
*dev
, uint64_t addr_start
, uint64_t size
,
3435 bool dedicated_hp_event_source
, Error
**errp
)
3438 uint32_t nr_lmbs
= size
/SPAPR_MEMORY_BLOCK_SIZE
;
3440 uint64_t addr
= addr_start
;
3441 bool hotplugged
= spapr_drc_hotplugged(dev
);
3442 Error
*local_err
= NULL
;
3444 for (i
= 0; i
< nr_lmbs
; i
++) {
3445 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3446 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3449 spapr_drc_attach(drc
, dev
, &local_err
);
3451 while (addr
> addr_start
) {
3452 addr
-= SPAPR_MEMORY_BLOCK_SIZE
;
3453 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3454 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3455 spapr_drc_detach(drc
);
3457 error_propagate(errp
, local_err
);
3461 spapr_drc_reset(drc
);
3463 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3465 /* send hotplug notification to the
3466 * guest only in case of hotplugged memory
3469 if (dedicated_hp_event_source
) {
3470 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3471 addr_start
/ SPAPR_MEMORY_BLOCK_SIZE
);
3472 spapr_hotplug_req_add_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3474 spapr_drc_index(drc
));
3476 spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3482 static void spapr_memory_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3485 Error
*local_err
= NULL
;
3486 SpaprMachineState
*ms
= SPAPR_MACHINE(hotplug_dev
);
3487 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3488 uint64_t size
, addr
, slot
;
3489 bool is_nvdimm
= object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
);
3491 size
= memory_device_get_region_size(MEMORY_DEVICE(dev
), &error_abort
);
3493 pc_dimm_plug(dimm
, MACHINE(ms
), &local_err
);
3499 addr
= object_property_get_uint(OBJECT(dimm
),
3500 PC_DIMM_ADDR_PROP
, &local_err
);
3504 spapr_add_lmbs(dev
, addr
, size
,
3505 spapr_ovec_test(ms
->ov5_cas
, OV5_HP_EVT
),
3508 slot
= object_property_get_uint(OBJECT(dimm
),
3509 PC_DIMM_SLOT_PROP
, &local_err
);
3513 spapr_add_nvdimm(dev
, slot
, &local_err
);
3523 pc_dimm_unplug(dimm
, MACHINE(ms
));
3525 error_propagate(errp
, local_err
);
3528 static void spapr_memory_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3531 const SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(hotplug_dev
);
3532 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3533 const MachineClass
*mc
= MACHINE_CLASS(smc
);
3534 bool is_nvdimm
= object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
);
3535 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3536 Error
*local_err
= NULL
;
3541 if (!smc
->dr_lmb_enabled
) {
3542 error_setg(errp
, "Memory hotplug not supported for this machine");
3546 if (is_nvdimm
&& !mc
->nvdimm_supported
) {
3547 error_setg(errp
, "NVDIMM hotplug not supported for this machine");
3551 size
= memory_device_get_region_size(MEMORY_DEVICE(dimm
), &local_err
);
3553 error_propagate(errp
, local_err
);
3557 if (!is_nvdimm
&& size
% SPAPR_MEMORY_BLOCK_SIZE
) {
3558 error_setg(errp
, "Hotplugged memory size must be a multiple of "
3559 "%" PRIu64
" MB", SPAPR_MEMORY_BLOCK_SIZE
/ MiB
);
3561 } else if (is_nvdimm
) {
3562 spapr_nvdimm_validate_opts(NVDIMM(dev
), size
, &local_err
);
3564 error_propagate(errp
, local_err
);
3569 memdev
= object_property_get_link(OBJECT(dimm
), PC_DIMM_MEMDEV_PROP
,
3571 pagesize
= host_memory_backend_pagesize(MEMORY_BACKEND(memdev
));
3572 spapr_check_pagesize(spapr
, pagesize
, &local_err
);
3574 error_propagate(errp
, local_err
);
3578 pc_dimm_pre_plug(dimm
, MACHINE(hotplug_dev
), NULL
, errp
);
3581 struct SpaprDimmState
{
3584 QTAILQ_ENTRY(SpaprDimmState
) next
;
3587 static SpaprDimmState
*spapr_pending_dimm_unplugs_find(SpaprMachineState
*s
,
3590 SpaprDimmState
*dimm_state
= NULL
;
3592 QTAILQ_FOREACH(dimm_state
, &s
->pending_dimm_unplugs
, next
) {
3593 if (dimm_state
->dimm
== dimm
) {
3600 static SpaprDimmState
*spapr_pending_dimm_unplugs_add(SpaprMachineState
*spapr
,
3604 SpaprDimmState
*ds
= NULL
;
3607 * If this request is for a DIMM whose removal had failed earlier
3608 * (due to guest's refusal to remove the LMBs), we would have this
3609 * dimm already in the pending_dimm_unplugs list. In that
3610 * case don't add again.
3612 ds
= spapr_pending_dimm_unplugs_find(spapr
, dimm
);
3614 ds
= g_malloc0(sizeof(SpaprDimmState
));
3615 ds
->nr_lmbs
= nr_lmbs
;
3617 QTAILQ_INSERT_HEAD(&spapr
->pending_dimm_unplugs
, ds
, next
);
3622 static void spapr_pending_dimm_unplugs_remove(SpaprMachineState
*spapr
,
3623 SpaprDimmState
*dimm_state
)
3625 QTAILQ_REMOVE(&spapr
->pending_dimm_unplugs
, dimm_state
, next
);
3629 static SpaprDimmState
*spapr_recover_pending_dimm_state(SpaprMachineState
*ms
,
3633 uint64_t size
= memory_device_get_region_size(MEMORY_DEVICE(dimm
),
3635 uint32_t nr_lmbs
= size
/ SPAPR_MEMORY_BLOCK_SIZE
;
3636 uint32_t avail_lmbs
= 0;
3637 uint64_t addr_start
, addr
;
3640 addr_start
= object_property_get_int(OBJECT(dimm
), PC_DIMM_ADDR_PROP
,
3644 for (i
= 0; i
< nr_lmbs
; i
++) {
3645 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3646 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3651 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3654 return spapr_pending_dimm_unplugs_add(ms
, avail_lmbs
, dimm
);
3657 /* Callback to be called during DRC release. */
3658 void spapr_lmb_release(DeviceState
*dev
)
3660 HotplugHandler
*hotplug_ctrl
= qdev_get_hotplug_handler(dev
);
3661 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_ctrl
);
3662 SpaprDimmState
*ds
= spapr_pending_dimm_unplugs_find(spapr
, PC_DIMM(dev
));
3664 /* This information will get lost if a migration occurs
3665 * during the unplug process. In this case recover it. */
3667 ds
= spapr_recover_pending_dimm_state(spapr
, PC_DIMM(dev
));
3669 /* The DRC being examined by the caller at least must be counted */
3670 g_assert(ds
->nr_lmbs
);
3673 if (--ds
->nr_lmbs
) {
3678 * Now that all the LMBs have been removed by the guest, call the
3679 * unplug handler chain. This can never fail.
3681 hotplug_handler_unplug(hotplug_ctrl
, dev
, &error_abort
);
3682 object_unparent(OBJECT(dev
));
3685 static void spapr_memory_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
3687 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3688 SpaprDimmState
*ds
= spapr_pending_dimm_unplugs_find(spapr
, PC_DIMM(dev
));
3690 pc_dimm_unplug(PC_DIMM(dev
), MACHINE(hotplug_dev
));
3691 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
3692 spapr_pending_dimm_unplugs_remove(spapr
, ds
);
3695 static void spapr_memory_unplug_request(HotplugHandler
*hotplug_dev
,
3696 DeviceState
*dev
, Error
**errp
)
3698 SpaprMachineState
*spapr
= SPAPR_MACHINE(hotplug_dev
);
3699 Error
*local_err
= NULL
;
3700 PCDIMMDevice
*dimm
= PC_DIMM(dev
);
3702 uint64_t size
, addr_start
, addr
;
3706 if (object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
)) {
3707 error_setg(&local_err
,
3708 "nvdimm device hot unplug is not supported yet.");
3712 size
= memory_device_get_region_size(MEMORY_DEVICE(dimm
), &error_abort
);
3713 nr_lmbs
= size
/ SPAPR_MEMORY_BLOCK_SIZE
;
3715 addr_start
= object_property_get_uint(OBJECT(dimm
), PC_DIMM_ADDR_PROP
,
3722 * An existing pending dimm state for this DIMM means that there is an
3723 * unplug operation in progress, waiting for the spapr_lmb_release
3724 * callback to complete the job (BQL can't cover that far). In this case,
3725 * bail out to avoid detaching DRCs that were already released.
3727 if (spapr_pending_dimm_unplugs_find(spapr
, dimm
)) {
3728 error_setg(&local_err
,
3729 "Memory unplug already in progress for device %s",
3734 spapr_pending_dimm_unplugs_add(spapr
, nr_lmbs
, dimm
);
3737 for (i
= 0; i
< nr_lmbs
; i
++) {
3738 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3739 addr
/ SPAPR_MEMORY_BLOCK_SIZE
);
3742 spapr_drc_detach(drc
);
3743 addr
+= SPAPR_MEMORY_BLOCK_SIZE
;
3746 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_LMB
,
3747 addr_start
/ SPAPR_MEMORY_BLOCK_SIZE
);
3748 spapr_hotplug_req_remove_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB
,
3749 nr_lmbs
, spapr_drc_index(drc
));
3751 error_propagate(errp
, local_err
);
3754 /* Callback to be called during DRC release. */
3755 void spapr_core_release(DeviceState
*dev
)
3757 HotplugHandler
*hotplug_ctrl
= qdev_get_hotplug_handler(dev
);
3759 /* Call the unplug handler chain. This can never fail. */
3760 hotplug_handler_unplug(hotplug_ctrl
, dev
, &error_abort
);
3761 object_unparent(OBJECT(dev
));
3764 static void spapr_core_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
3766 MachineState
*ms
= MACHINE(hotplug_dev
);
3767 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(ms
);
3768 CPUCore
*cc
= CPU_CORE(dev
);
3769 CPUArchId
*core_slot
= spapr_find_cpu_slot(ms
, cc
->core_id
, NULL
);
3771 if (smc
->pre_2_10_has_unused_icps
) {
3772 SpaprCpuCore
*sc
= SPAPR_CPU_CORE(OBJECT(dev
));
3775 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3776 CPUState
*cs
= CPU(sc
->threads
[i
]);
3778 pre_2_10_vmstate_register_dummy_icp(cs
->cpu_index
);
3783 core_slot
->cpu
= NULL
;
3784 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
3788 void spapr_core_unplug_request(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3791 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3794 CPUCore
*cc
= CPU_CORE(dev
);
3796 if (!spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
)) {
3797 error_setg(errp
, "Unable to find CPU core with core-id: %d",
3802 error_setg(errp
, "Boot CPU core may not be unplugged");
3806 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
,
3807 spapr_vcpu_id(spapr
, cc
->core_id
));
3810 if (!spapr_drc_unplug_requested(drc
)) {
3811 spapr_drc_detach(drc
);
3812 spapr_hotplug_req_remove_by_index(drc
);
3816 int spapr_core_dt_populate(SpaprDrc
*drc
, SpaprMachineState
*spapr
,
3817 void *fdt
, int *fdt_start_offset
, Error
**errp
)
3819 SpaprCpuCore
*core
= SPAPR_CPU_CORE(drc
->dev
);
3820 CPUState
*cs
= CPU(core
->threads
[0]);
3821 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
3822 DeviceClass
*dc
= DEVICE_GET_CLASS(cs
);
3823 int id
= spapr_get_vcpu_id(cpu
);
3827 nodename
= g_strdup_printf("%s@%x", dc
->fw_name
, id
);
3828 offset
= fdt_add_subnode(fdt
, 0, nodename
);
3831 spapr_dt_cpu(cs
, fdt
, offset
, spapr
);
3833 *fdt_start_offset
= offset
;
3837 static void spapr_core_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3840 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3841 MachineClass
*mc
= MACHINE_GET_CLASS(spapr
);
3842 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
3843 SpaprCpuCore
*core
= SPAPR_CPU_CORE(OBJECT(dev
));
3844 CPUCore
*cc
= CPU_CORE(dev
);
3847 Error
*local_err
= NULL
;
3848 CPUArchId
*core_slot
;
3850 bool hotplugged
= spapr_drc_hotplugged(dev
);
3853 core_slot
= spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
);
3855 error_setg(errp
, "Unable to find CPU core with core-id: %d",
3859 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_CPU
,
3860 spapr_vcpu_id(spapr
, cc
->core_id
));
3862 g_assert(drc
|| !mc
->has_hotpluggable_cpus
);
3865 spapr_drc_attach(drc
, dev
, &local_err
);
3867 error_propagate(errp
, local_err
);
3873 * Send hotplug notification interrupt to the guest only
3874 * in case of hotplugged CPUs.
3876 spapr_hotplug_req_add_by_index(drc
);
3878 spapr_drc_reset(drc
);
3882 core_slot
->cpu
= OBJECT(dev
);
3884 if (smc
->pre_2_10_has_unused_icps
) {
3885 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3886 cs
= CPU(core
->threads
[i
]);
3887 pre_2_10_vmstate_unregister_dummy_icp(cs
->cpu_index
);
3892 * Set compatibility mode to match the boot CPU, which was either set
3893 * by the machine reset code or by CAS.
3896 for (i
= 0; i
< cc
->nr_threads
; i
++) {
3897 ppc_set_compat(core
->threads
[i
], POWERPC_CPU(first_cpu
)->compat_pvr
,
3900 error_propagate(errp
, local_err
);
3907 static void spapr_core_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3910 MachineState
*machine
= MACHINE(OBJECT(hotplug_dev
));
3911 MachineClass
*mc
= MACHINE_GET_CLASS(hotplug_dev
);
3912 Error
*local_err
= NULL
;
3913 CPUCore
*cc
= CPU_CORE(dev
);
3914 const char *base_core_type
= spapr_get_cpu_core_type(machine
->cpu_type
);
3915 const char *type
= object_get_typename(OBJECT(dev
));
3916 CPUArchId
*core_slot
;
3918 unsigned int smp_threads
= machine
->smp
.threads
;
3920 if (dev
->hotplugged
&& !mc
->has_hotpluggable_cpus
) {
3921 error_setg(&local_err
, "CPU hotplug not supported for this machine");
3925 if (strcmp(base_core_type
, type
)) {
3926 error_setg(&local_err
, "CPU core type should be %s", base_core_type
);
3930 if (cc
->core_id
% smp_threads
) {
3931 error_setg(&local_err
, "invalid core id %d", cc
->core_id
);
3936 * In general we should have homogeneous threads-per-core, but old
3937 * (pre hotplug support) machine types allow the last core to have
3938 * reduced threads as a compatibility hack for when we allowed
3939 * total vcpus not a multiple of threads-per-core.
3941 if (mc
->has_hotpluggable_cpus
&& (cc
->nr_threads
!= smp_threads
)) {
3942 error_setg(&local_err
, "invalid nr-threads %d, must be %d",
3943 cc
->nr_threads
, smp_threads
);
3947 core_slot
= spapr_find_cpu_slot(MACHINE(hotplug_dev
), cc
->core_id
, &index
);
3949 error_setg(&local_err
, "core id %d out of range", cc
->core_id
);
3953 if (core_slot
->cpu
) {
3954 error_setg(&local_err
, "core %d already populated", cc
->core_id
);
3958 numa_cpu_pre_plug(core_slot
, dev
, &local_err
);
3961 error_propagate(errp
, local_err
);
3964 int spapr_phb_dt_populate(SpaprDrc
*drc
, SpaprMachineState
*spapr
,
3965 void *fdt
, int *fdt_start_offset
, Error
**errp
)
3967 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(drc
->dev
);
3970 intc_phandle
= spapr_irq_get_phandle(spapr
, spapr
->fdt_blob
, errp
);
3971 if (intc_phandle
<= 0) {
3975 if (spapr_dt_phb(spapr
, sphb
, intc_phandle
, fdt
, fdt_start_offset
)) {
3976 error_setg(errp
, "unable to create FDT node for PHB %d", sphb
->index
);
3980 /* generally SLOF creates these, for hotplug it's up to QEMU */
3981 _FDT(fdt_setprop_string(fdt
, *fdt_start_offset
, "name", "pci"));
3986 static void spapr_phb_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
3989 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
3990 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(dev
);
3991 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
3992 const unsigned windows_supported
= spapr_phb_windows_supported(sphb
);
3994 if (dev
->hotplugged
&& !smc
->dr_phb_enabled
) {
3995 error_setg(errp
, "PHB hotplug not supported for this machine");
3999 if (sphb
->index
== (uint32_t)-1) {
4000 error_setg(errp
, "\"index\" for PAPR PHB is mandatory");
4005 * This will check that sphb->index doesn't exceed the maximum number of
4006 * PHBs for the current machine type.
4008 smc
->phb_placement(spapr
, sphb
->index
,
4009 &sphb
->buid
, &sphb
->io_win_addr
,
4010 &sphb
->mem_win_addr
, &sphb
->mem64_win_addr
,
4011 windows_supported
, sphb
->dma_liobn
,
4012 &sphb
->nv2_gpa_win_addr
, &sphb
->nv2_atsd_win_addr
,
4016 static void spapr_phb_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
4019 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4020 SpaprMachineClass
*smc
= SPAPR_MACHINE_GET_CLASS(spapr
);
4021 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(dev
);
4023 bool hotplugged
= spapr_drc_hotplugged(dev
);
4024 Error
*local_err
= NULL
;
4026 if (!smc
->dr_phb_enabled
) {
4030 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_PHB
, sphb
->index
);
4031 /* hotplug hooks should check it's enabled before getting this far */
4034 spapr_drc_attach(drc
, DEVICE(dev
), &local_err
);
4036 error_propagate(errp
, local_err
);
4041 spapr_hotplug_req_add_by_index(drc
);
4043 spapr_drc_reset(drc
);
4047 void spapr_phb_release(DeviceState
*dev
)
4049 HotplugHandler
*hotplug_ctrl
= qdev_get_hotplug_handler(dev
);
4051 hotplug_handler_unplug(hotplug_ctrl
, dev
, &error_abort
);
4052 object_unparent(OBJECT(dev
));
4055 static void spapr_phb_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
4057 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
4060 static void spapr_phb_unplug_request(HotplugHandler
*hotplug_dev
,
4061 DeviceState
*dev
, Error
**errp
)
4063 SpaprPhbState
*sphb
= SPAPR_PCI_HOST_BRIDGE(dev
);
4066 drc
= spapr_drc_by_id(TYPE_SPAPR_DRC_PHB
, sphb
->index
);
4069 if (!spapr_drc_unplug_requested(drc
)) {
4070 spapr_drc_detach(drc
);
4071 spapr_hotplug_req_remove_by_index(drc
);
4075 static void spapr_tpm_proxy_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
4078 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4079 SpaprTpmProxy
*tpm_proxy
= SPAPR_TPM_PROXY(dev
);
4081 if (spapr
->tpm_proxy
!= NULL
) {
4082 error_setg(errp
, "Only one TPM proxy can be specified for this machine");
4086 spapr
->tpm_proxy
= tpm_proxy
;
4089 static void spapr_tpm_proxy_unplug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
)
4091 SpaprMachineState
*spapr
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4093 object_property_set_bool(OBJECT(dev
), false, "realized", NULL
);
4094 object_unparent(OBJECT(dev
));
4095 spapr
->tpm_proxy
= NULL
;
4098 static void spapr_machine_device_plug(HotplugHandler
*hotplug_dev
,
4099 DeviceState
*dev
, Error
**errp
)
4101 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4102 spapr_memory_plug(hotplug_dev
, dev
, errp
);
4103 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4104 spapr_core_plug(hotplug_dev
, dev
, errp
);
4105 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4106 spapr_phb_plug(hotplug_dev
, dev
, errp
);
4107 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4108 spapr_tpm_proxy_plug(hotplug_dev
, dev
, errp
);
4112 static void spapr_machine_device_unplug(HotplugHandler
*hotplug_dev
,
4113 DeviceState
*dev
, Error
**errp
)
4115 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4116 spapr_memory_unplug(hotplug_dev
, dev
);
4117 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4118 spapr_core_unplug(hotplug_dev
, dev
);
4119 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4120 spapr_phb_unplug(hotplug_dev
, dev
);
4121 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4122 spapr_tpm_proxy_unplug(hotplug_dev
, dev
);
4126 static void spapr_machine_device_unplug_request(HotplugHandler
*hotplug_dev
,
4127 DeviceState
*dev
, Error
**errp
)
4129 SpaprMachineState
*sms
= SPAPR_MACHINE(OBJECT(hotplug_dev
));
4130 MachineClass
*mc
= MACHINE_GET_CLASS(sms
);
4131 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4133 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4134 if (spapr_ovec_test(sms
->ov5_cas
, OV5_HP_EVT
)) {
4135 spapr_memory_unplug_request(hotplug_dev
, dev
, errp
);
4137 /* NOTE: this means there is a window after guest reset, prior to
4138 * CAS negotiation, where unplug requests will fail due to the
4139 * capability not being detected yet. This is a bit different than
4140 * the case with PCI unplug, where the events will be queued and
4141 * eventually handled by the guest after boot
4143 error_setg(errp
, "Memory hot unplug not supported for this guest");
4145 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4146 if (!mc
->has_hotpluggable_cpus
) {
4147 error_setg(errp
, "CPU hot unplug not supported on this machine");
4150 spapr_core_unplug_request(hotplug_dev
, dev
, errp
);
4151 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4152 if (!smc
->dr_phb_enabled
) {
4153 error_setg(errp
, "PHB hot unplug not supported on this machine");
4156 spapr_phb_unplug_request(hotplug_dev
, dev
, errp
);
4157 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4158 spapr_tpm_proxy_unplug(hotplug_dev
, dev
);
4162 static void spapr_machine_device_pre_plug(HotplugHandler
*hotplug_dev
,
4163 DeviceState
*dev
, Error
**errp
)
4165 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
4166 spapr_memory_pre_plug(hotplug_dev
, dev
, errp
);
4167 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
)) {
4168 spapr_core_pre_plug(hotplug_dev
, dev
, errp
);
4169 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
)) {
4170 spapr_phb_pre_plug(hotplug_dev
, dev
, errp
);
4174 static HotplugHandler
*spapr_get_hotplug_handler(MachineState
*machine
,
4177 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
) ||
4178 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_CPU_CORE
) ||
4179 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_PCI_HOST_BRIDGE
) ||
4180 object_dynamic_cast(OBJECT(dev
), TYPE_SPAPR_TPM_PROXY
)) {
4181 return HOTPLUG_HANDLER(machine
);
4183 if (object_dynamic_cast(OBJECT(dev
), TYPE_PCI_DEVICE
)) {
4184 PCIDevice
*pcidev
= PCI_DEVICE(dev
);
4185 PCIBus
*root
= pci_device_root_bus(pcidev
);
4186 SpaprPhbState
*phb
=
4187 (SpaprPhbState
*)object_dynamic_cast(OBJECT(BUS(root
)->parent
),
4188 TYPE_SPAPR_PCI_HOST_BRIDGE
);
4191 return HOTPLUG_HANDLER(phb
);
4197 static CpuInstanceProperties
4198 spapr_cpu_index_to_props(MachineState
*machine
, unsigned cpu_index
)
4200 CPUArchId
*core_slot
;
4201 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
4203 /* make sure possible_cpu are intialized */
4204 mc
->possible_cpu_arch_ids(machine
);
4205 /* get CPU core slot containing thread that matches cpu_index */
4206 core_slot
= spapr_find_cpu_slot(machine
, cpu_index
, NULL
);
4208 return core_slot
->props
;
4211 static int64_t spapr_get_default_cpu_node_id(const MachineState
*ms
, int idx
)
4213 return idx
/ ms
->smp
.cores
% ms
->numa_state
->num_nodes
;
4216 static const CPUArchIdList
*spapr_possible_cpu_arch_ids(MachineState
*machine
)
4219 unsigned int smp_threads
= machine
->smp
.threads
;
4220 unsigned int smp_cpus
= machine
->smp
.cpus
;
4221 const char *core_type
;
4222 int spapr_max_cores
= machine
->smp
.max_cpus
/ smp_threads
;
4223 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
4225 if (!mc
->has_hotpluggable_cpus
) {
4226 spapr_max_cores
= QEMU_ALIGN_UP(smp_cpus
, smp_threads
) / smp_threads
;
4228 if (machine
->possible_cpus
) {
4229 assert(machine
->possible_cpus
->len
== spapr_max_cores
);
4230 return machine
->possible_cpus
;
4233 core_type
= spapr_get_cpu_core_type(machine
->cpu_type
);
4235 error_report("Unable to find sPAPR CPU Core definition");
4239 machine
->possible_cpus
= g_malloc0(sizeof(CPUArchIdList
) +
4240 sizeof(CPUArchId
) * spapr_max_cores
);
4241 machine
->possible_cpus
->len
= spapr_max_cores
;
4242 for (i
= 0; i
< machine
->possible_cpus
->len
; i
++) {
4243 int core_id
= i
* smp_threads
;
4245 machine
->possible_cpus
->cpus
[i
].type
= core_type
;
4246 machine
->possible_cpus
->cpus
[i
].vcpus_count
= smp_threads
;
4247 machine
->possible_cpus
->cpus
[i
].arch_id
= core_id
;
4248 machine
->possible_cpus
->cpus
[i
].props
.has_core_id
= true;
4249 machine
->possible_cpus
->cpus
[i
].props
.core_id
= core_id
;
4251 return machine
->possible_cpus
;
4254 static void spapr_phb_placement(SpaprMachineState
*spapr
, uint32_t index
,
4255 uint64_t *buid
, hwaddr
*pio
,
4256 hwaddr
*mmio32
, hwaddr
*mmio64
,
4257 unsigned n_dma
, uint32_t *liobns
,
4258 hwaddr
*nv2gpa
, hwaddr
*nv2atsd
, Error
**errp
)
4261 * New-style PHB window placement.
4263 * Goals: Gives large (1TiB), naturally aligned 64-bit MMIO window
4264 * for each PHB, in addition to 2GiB 32-bit MMIO and 64kiB PIO
4267 * Some guest kernels can't work with MMIO windows above 1<<46
4268 * (64TiB), so we place up to 31 PHBs in the area 32TiB..64TiB
4270 * 32TiB..(33TiB+1984kiB) contains the 64kiB PIO windows for each
4271 * PHB stacked together. (32TiB+2GiB)..(32TiB+64GiB) contains the
4272 * 2GiB 32-bit MMIO windows for each PHB. Then 33..64TiB has the
4273 * 1TiB 64-bit MMIO windows for each PHB.
4275 const uint64_t base_buid
= 0x800000020000000ULL
;
4278 /* Sanity check natural alignments */
4279 QEMU_BUILD_BUG_ON((SPAPR_PCI_BASE
% SPAPR_PCI_MEM64_WIN_SIZE
) != 0);
4280 QEMU_BUILD_BUG_ON((SPAPR_PCI_LIMIT
% SPAPR_PCI_MEM64_WIN_SIZE
) != 0);
4281 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM64_WIN_SIZE
% SPAPR_PCI_MEM32_WIN_SIZE
) != 0);
4282 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM32_WIN_SIZE
% SPAPR_PCI_IO_WIN_SIZE
) != 0);
4283 /* Sanity check bounds */
4284 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS
* SPAPR_PCI_IO_WIN_SIZE
) >
4285 SPAPR_PCI_MEM32_WIN_SIZE
);
4286 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS
* SPAPR_PCI_MEM32_WIN_SIZE
) >
4287 SPAPR_PCI_MEM64_WIN_SIZE
);
4289 if (index
>= SPAPR_MAX_PHBS
) {
4290 error_setg(errp
, "\"index\" for PAPR PHB is too large (max %llu)",
4291 SPAPR_MAX_PHBS
- 1);
4295 *buid
= base_buid
+ index
;
4296 for (i
= 0; i
< n_dma
; ++i
) {
4297 liobns
[i
] = SPAPR_PCI_LIOBN(index
, i
);
4300 *pio
= SPAPR_PCI_BASE
+ index
* SPAPR_PCI_IO_WIN_SIZE
;
4301 *mmio32
= SPAPR_PCI_BASE
+ (index
+ 1) * SPAPR_PCI_MEM32_WIN_SIZE
;
4302 *mmio64
= SPAPR_PCI_BASE
+ (index
+ 1) * SPAPR_PCI_MEM64_WIN_SIZE
;
4304 *nv2gpa
= SPAPR_PCI_NV2RAM64_WIN_BASE
+ index
* SPAPR_PCI_NV2RAM64_WIN_SIZE
;
4305 *nv2atsd
= SPAPR_PCI_NV2ATSD_WIN_BASE
+ index
* SPAPR_PCI_NV2ATSD_WIN_SIZE
;
4308 static ICSState
*spapr_ics_get(XICSFabric
*dev
, int irq
)
4310 SpaprMachineState
*spapr
= SPAPR_MACHINE(dev
);
4312 return ics_valid_irq(spapr
->ics
, irq
) ? spapr
->ics
: NULL
;
4315 static void spapr_ics_resend(XICSFabric
*dev
)
4317 SpaprMachineState
*spapr
= SPAPR_MACHINE(dev
);
4319 ics_resend(spapr
->ics
);
4322 static ICPState
*spapr_icp_get(XICSFabric
*xi
, int vcpu_id
)
4324 PowerPCCPU
*cpu
= spapr_find_cpu(vcpu_id
);
4326 return cpu
? spapr_cpu_state(cpu
)->icp
: NULL
;
4329 static void spapr_pic_print_info(InterruptStatsProvider
*obj
,
4332 SpaprMachineState
*spapr
= SPAPR_MACHINE(obj
);
4334 spapr_irq_print_info(spapr
, mon
);
4335 monitor_printf(mon
, "irqchip: %s\n",
4336 kvm_irqchip_in_kernel() ? "in-kernel" : "emulated");
4340 * This is a XIVE only operation
4342 static int spapr_match_nvt(XiveFabric
*xfb
, uint8_t format
,
4343 uint8_t nvt_blk
, uint32_t nvt_idx
,
4344 bool cam_ignore
, uint8_t priority
,
4345 uint32_t logic_serv
, XiveTCTXMatch
*match
)
4347 SpaprMachineState
*spapr
= SPAPR_MACHINE(xfb
);
4348 XivePresenter
*xptr
= XIVE_PRESENTER(spapr
->active_intc
);
4349 XivePresenterClass
*xpc
= XIVE_PRESENTER_GET_CLASS(xptr
);
4352 count
= xpc
->match_nvt(xptr
, format
, nvt_blk
, nvt_idx
, cam_ignore
,
4353 priority
, logic_serv
, match
);
4359 * When we implement the save and restore of the thread interrupt
4360 * contexts in the enter/exit CPU handlers of the machine and the
4361 * escalations in QEMU, we should be able to handle non dispatched
4364 * Until this is done, the sPAPR machine should find at least one
4365 * matching context always.
4368 qemu_log_mask(LOG_GUEST_ERROR
, "XIVE: NVT %x/%x is not dispatched\n",
4375 int spapr_get_vcpu_id(PowerPCCPU
*cpu
)
4377 return cpu
->vcpu_id
;
4380 void spapr_set_vcpu_id(PowerPCCPU
*cpu
, int cpu_index
, Error
**errp
)
4382 SpaprMachineState
*spapr
= SPAPR_MACHINE(qdev_get_machine());
4383 MachineState
*ms
= MACHINE(spapr
);
4386 vcpu_id
= spapr_vcpu_id(spapr
, cpu_index
);
4388 if (kvm_enabled() && !kvm_vcpu_id_is_valid(vcpu_id
)) {
4389 error_setg(errp
, "Can't create CPU with id %d in KVM", vcpu_id
);
4390 error_append_hint(errp
, "Adjust the number of cpus to %d "
4391 "or try to raise the number of threads per core\n",
4392 vcpu_id
* ms
->smp
.threads
/ spapr
->vsmt
);
4396 cpu
->vcpu_id
= vcpu_id
;
4399 PowerPCCPU
*spapr_find_cpu(int vcpu_id
)
4404 PowerPCCPU
*cpu
= POWERPC_CPU(cs
);
4406 if (spapr_get_vcpu_id(cpu
) == vcpu_id
) {
4414 static void spapr_cpu_exec_enter(PPCVirtualHypervisor
*vhyp
, PowerPCCPU
*cpu
)
4416 SpaprCpuState
*spapr_cpu
= spapr_cpu_state(cpu
);
4418 /* These are only called by TCG, KVM maintains dispatch state */
4420 spapr_cpu
->prod
= false;
4421 if (spapr_cpu
->vpa_addr
) {
4422 CPUState
*cs
= CPU(cpu
);
4425 dispatch
= ldl_be_phys(cs
->as
,
4426 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
);
4428 if ((dispatch
& 1) != 0) {
4429 qemu_log_mask(LOG_GUEST_ERROR
,
4430 "VPA: incorrect dispatch counter value for "
4431 "dispatched partition %u, correcting.\n", dispatch
);
4435 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
, dispatch
);
4439 static void spapr_cpu_exec_exit(PPCVirtualHypervisor
*vhyp
, PowerPCCPU
*cpu
)
4441 SpaprCpuState
*spapr_cpu
= spapr_cpu_state(cpu
);
4443 if (spapr_cpu
->vpa_addr
) {
4444 CPUState
*cs
= CPU(cpu
);
4447 dispatch
= ldl_be_phys(cs
->as
,
4448 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
);
4450 if ((dispatch
& 1) != 1) {
4451 qemu_log_mask(LOG_GUEST_ERROR
,
4452 "VPA: incorrect dispatch counter value for "
4453 "preempted partition %u, correcting.\n", dispatch
);
4457 spapr_cpu
->vpa_addr
+ VPA_DISPATCH_COUNTER
, dispatch
);
4461 static void spapr_machine_class_init(ObjectClass
*oc
, void *data
)
4463 MachineClass
*mc
= MACHINE_CLASS(oc
);
4464 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(oc
);
4465 FWPathProviderClass
*fwc
= FW_PATH_PROVIDER_CLASS(oc
);
4466 NMIClass
*nc
= NMI_CLASS(oc
);
4467 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
4468 PPCVirtualHypervisorClass
*vhc
= PPC_VIRTUAL_HYPERVISOR_CLASS(oc
);
4469 XICSFabricClass
*xic
= XICS_FABRIC_CLASS(oc
);
4470 InterruptStatsProviderClass
*ispc
= INTERRUPT_STATS_PROVIDER_CLASS(oc
);
4471 XiveFabricClass
*xfc
= XIVE_FABRIC_CLASS(oc
);
4473 mc
->desc
= "pSeries Logical Partition (PAPR compliant)";
4474 mc
->ignore_boot_device_suffixes
= true;
4477 * We set up the default / latest behaviour here. The class_init
4478 * functions for the specific versioned machine types can override
4479 * these details for backwards compatibility
4481 mc
->init
= spapr_machine_init
;
4482 mc
->reset
= spapr_machine_reset
;
4483 mc
->block_default_type
= IF_SCSI
;
4484 mc
->max_cpus
= 1024;
4485 mc
->no_parallel
= 1;
4486 mc
->default_boot_order
= "";
4487 mc
->default_ram_size
= 512 * MiB
;
4488 mc
->default_ram_id
= "ppc_spapr.ram";
4489 mc
->default_display
= "std";
4490 mc
->kvm_type
= spapr_kvm_type
;
4491 machine_class_allow_dynamic_sysbus_dev(mc
, TYPE_SPAPR_PCI_HOST_BRIDGE
);
4492 mc
->pci_allow_0_address
= true;
4493 assert(!mc
->get_hotplug_handler
);
4494 mc
->get_hotplug_handler
= spapr_get_hotplug_handler
;
4495 hc
->pre_plug
= spapr_machine_device_pre_plug
;
4496 hc
->plug
= spapr_machine_device_plug
;
4497 mc
->cpu_index_to_instance_props
= spapr_cpu_index_to_props
;
4498 mc
->get_default_cpu_node_id
= spapr_get_default_cpu_node_id
;
4499 mc
->possible_cpu_arch_ids
= spapr_possible_cpu_arch_ids
;
4500 hc
->unplug_request
= spapr_machine_device_unplug_request
;
4501 hc
->unplug
= spapr_machine_device_unplug
;
4503 smc
->dr_lmb_enabled
= true;
4504 smc
->update_dt_enabled
= true;
4505 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power9_v2.0");
4506 mc
->has_hotpluggable_cpus
= true;
4507 mc
->nvdimm_supported
= true;
4508 smc
->resize_hpt_default
= SPAPR_RESIZE_HPT_ENABLED
;
4509 fwc
->get_dev_path
= spapr_get_fw_dev_path
;
4510 nc
->nmi_monitor_handler
= spapr_nmi
;
4511 smc
->phb_placement
= spapr_phb_placement
;
4512 vhc
->hypercall
= emulate_spapr_hypercall
;
4513 vhc
->hpt_mask
= spapr_hpt_mask
;
4514 vhc
->map_hptes
= spapr_map_hptes
;
4515 vhc
->unmap_hptes
= spapr_unmap_hptes
;
4516 vhc
->hpte_set_c
= spapr_hpte_set_c
;
4517 vhc
->hpte_set_r
= spapr_hpte_set_r
;
4518 vhc
->get_pate
= spapr_get_pate
;
4519 vhc
->encode_hpt_for_kvm_pr
= spapr_encode_hpt_for_kvm_pr
;
4520 vhc
->cpu_exec_enter
= spapr_cpu_exec_enter
;
4521 vhc
->cpu_exec_exit
= spapr_cpu_exec_exit
;
4522 xic
->ics_get
= spapr_ics_get
;
4523 xic
->ics_resend
= spapr_ics_resend
;
4524 xic
->icp_get
= spapr_icp_get
;
4525 ispc
->print_info
= spapr_pic_print_info
;
4526 /* Force NUMA node memory size to be a multiple of
4527 * SPAPR_MEMORY_BLOCK_SIZE (256M) since that's the granularity
4528 * in which LMBs are represented and hot-added
4530 mc
->numa_mem_align_shift
= 28;
4531 mc
->numa_mem_supported
= true;
4532 mc
->auto_enable_numa
= true;
4534 smc
->default_caps
.caps
[SPAPR_CAP_HTM
] = SPAPR_CAP_OFF
;
4535 smc
->default_caps
.caps
[SPAPR_CAP_VSX
] = SPAPR_CAP_ON
;
4536 smc
->default_caps
.caps
[SPAPR_CAP_DFP
] = SPAPR_CAP_ON
;
4537 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_WORKAROUND
;
4538 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_WORKAROUND
;
4539 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_WORKAROUND
;
4540 smc
->default_caps
.caps
[SPAPR_CAP_HPT_MAXPAGESIZE
] = 16; /* 64kiB */
4541 smc
->default_caps
.caps
[SPAPR_CAP_NESTED_KVM_HV
] = SPAPR_CAP_OFF
;
4542 smc
->default_caps
.caps
[SPAPR_CAP_LARGE_DECREMENTER
] = SPAPR_CAP_ON
;
4543 smc
->default_caps
.caps
[SPAPR_CAP_CCF_ASSIST
] = SPAPR_CAP_ON
;
4544 smc
->default_caps
.caps
[SPAPR_CAP_FWNMI
] = SPAPR_CAP_ON
;
4545 spapr_caps_add_properties(smc
, &error_abort
);
4546 smc
->irq
= &spapr_irq_dual
;
4547 smc
->dr_phb_enabled
= true;
4548 smc
->linux_pci_probe
= true;
4549 smc
->smp_threads_vsmt
= true;
4550 smc
->nr_xirqs
= SPAPR_NR_XIRQS
;
4551 xfc
->match_nvt
= spapr_match_nvt
;
4554 static const TypeInfo spapr_machine_info
= {
4555 .name
= TYPE_SPAPR_MACHINE
,
4556 .parent
= TYPE_MACHINE
,
4558 .instance_size
= sizeof(SpaprMachineState
),
4559 .instance_init
= spapr_instance_init
,
4560 .instance_finalize
= spapr_machine_finalizefn
,
4561 .class_size
= sizeof(SpaprMachineClass
),
4562 .class_init
= spapr_machine_class_init
,
4563 .interfaces
= (InterfaceInfo
[]) {
4564 { TYPE_FW_PATH_PROVIDER
},
4566 { TYPE_HOTPLUG_HANDLER
},
4567 { TYPE_PPC_VIRTUAL_HYPERVISOR
},
4568 { TYPE_XICS_FABRIC
},
4569 { TYPE_INTERRUPT_STATS_PROVIDER
},
4570 { TYPE_XIVE_FABRIC
},
4575 static void spapr_machine_latest_class_options(MachineClass
*mc
)
4577 mc
->alias
= "pseries";
4578 mc
->is_default
= true;
4581 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \
4582 static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \
4585 MachineClass *mc = MACHINE_CLASS(oc); \
4586 spapr_machine_##suffix##_class_options(mc); \
4588 spapr_machine_latest_class_options(mc); \
4591 static const TypeInfo spapr_machine_##suffix##_info = { \
4592 .name = MACHINE_TYPE_NAME("pseries-" verstr), \
4593 .parent = TYPE_SPAPR_MACHINE, \
4594 .class_init = spapr_machine_##suffix##_class_init, \
4596 static void spapr_machine_register_##suffix(void) \
4598 type_register(&spapr_machine_##suffix##_info); \
4600 type_init(spapr_machine_register_##suffix)
4605 static void spapr_machine_5_0_class_options(MachineClass
*mc
)
4607 /* Defaults for the latest behaviour inherited from the base class */
4610 DEFINE_SPAPR_MACHINE(5_0
, "5.0", true);
4615 static void spapr_machine_4_2_class_options(MachineClass
*mc
)
4617 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4619 spapr_machine_5_0_class_options(mc
);
4620 compat_props_add(mc
->compat_props
, hw_compat_4_2
, hw_compat_4_2_len
);
4621 smc
->default_caps
.caps
[SPAPR_CAP_CCF_ASSIST
] = SPAPR_CAP_OFF
;
4622 smc
->default_caps
.caps
[SPAPR_CAP_FWNMI
] = SPAPR_CAP_OFF
;
4623 smc
->rma_limit
= 16 * GiB
;
4624 mc
->nvdimm_supported
= false;
4627 DEFINE_SPAPR_MACHINE(4_2
, "4.2", false);
4632 static void spapr_machine_4_1_class_options(MachineClass
*mc
)
4634 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4635 static GlobalProperty compat
[] = {
4636 /* Only allow 4kiB and 64kiB IOMMU pagesizes */
4637 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "pgsz", "0x11000" },
4640 spapr_machine_4_2_class_options(mc
);
4641 smc
->linux_pci_probe
= false;
4642 smc
->smp_threads_vsmt
= false;
4643 compat_props_add(mc
->compat_props
, hw_compat_4_1
, hw_compat_4_1_len
);
4644 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4647 DEFINE_SPAPR_MACHINE(4_1
, "4.1", false);
4652 static void phb_placement_4_0(SpaprMachineState
*spapr
, uint32_t index
,
4653 uint64_t *buid
, hwaddr
*pio
,
4654 hwaddr
*mmio32
, hwaddr
*mmio64
,
4655 unsigned n_dma
, uint32_t *liobns
,
4656 hwaddr
*nv2gpa
, hwaddr
*nv2atsd
, Error
**errp
)
4658 spapr_phb_placement(spapr
, index
, buid
, pio
, mmio32
, mmio64
, n_dma
, liobns
,
4659 nv2gpa
, nv2atsd
, errp
);
4664 static void spapr_machine_4_0_class_options(MachineClass
*mc
)
4666 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4668 spapr_machine_4_1_class_options(mc
);
4669 compat_props_add(mc
->compat_props
, hw_compat_4_0
, hw_compat_4_0_len
);
4670 smc
->phb_placement
= phb_placement_4_0
;
4671 smc
->irq
= &spapr_irq_xics
;
4672 smc
->pre_4_1_migration
= true;
4675 DEFINE_SPAPR_MACHINE(4_0
, "4.0", false);
4680 static void spapr_machine_3_1_class_options(MachineClass
*mc
)
4682 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4684 spapr_machine_4_0_class_options(mc
);
4685 compat_props_add(mc
->compat_props
, hw_compat_3_1
, hw_compat_3_1_len
);
4687 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power8_v2.0");
4688 smc
->update_dt_enabled
= false;
4689 smc
->dr_phb_enabled
= false;
4690 smc
->broken_host_serial_model
= true;
4691 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_BROKEN
;
4692 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_BROKEN
;
4693 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_BROKEN
;
4694 smc
->default_caps
.caps
[SPAPR_CAP_LARGE_DECREMENTER
] = SPAPR_CAP_OFF
;
4697 DEFINE_SPAPR_MACHINE(3_1
, "3.1", false);
4703 static void spapr_machine_3_0_class_options(MachineClass
*mc
)
4705 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4707 spapr_machine_3_1_class_options(mc
);
4708 compat_props_add(mc
->compat_props
, hw_compat_3_0
, hw_compat_3_0_len
);
4710 smc
->legacy_irq_allocation
= true;
4711 smc
->nr_xirqs
= 0x400;
4712 smc
->irq
= &spapr_irq_xics_legacy
;
4715 DEFINE_SPAPR_MACHINE(3_0
, "3.0", false);
4720 static void spapr_machine_2_12_class_options(MachineClass
*mc
)
4722 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4723 static GlobalProperty compat
[] = {
4724 { TYPE_POWERPC_CPU
, "pre-3.0-migration", "on" },
4725 { TYPE_SPAPR_CPU_CORE
, "pre-3.0-migration", "on" },
4728 spapr_machine_3_0_class_options(mc
);
4729 compat_props_add(mc
->compat_props
, hw_compat_2_12
, hw_compat_2_12_len
);
4730 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4732 /* We depend on kvm_enabled() to choose a default value for the
4733 * hpt-max-page-size capability. Of course we can't do it here
4734 * because this is too early and the HW accelerator isn't initialzed
4735 * yet. Postpone this to machine init (see default_caps_with_cpu()).
4737 smc
->default_caps
.caps
[SPAPR_CAP_HPT_MAXPAGESIZE
] = 0;
4740 DEFINE_SPAPR_MACHINE(2_12
, "2.12", false);
4742 static void spapr_machine_2_12_sxxm_class_options(MachineClass
*mc
)
4744 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4746 spapr_machine_2_12_class_options(mc
);
4747 smc
->default_caps
.caps
[SPAPR_CAP_CFPC
] = SPAPR_CAP_WORKAROUND
;
4748 smc
->default_caps
.caps
[SPAPR_CAP_SBBC
] = SPAPR_CAP_WORKAROUND
;
4749 smc
->default_caps
.caps
[SPAPR_CAP_IBS
] = SPAPR_CAP_FIXED_CCD
;
4752 DEFINE_SPAPR_MACHINE(2_12_sxxm
, "2.12-sxxm", false);
4758 static void spapr_machine_2_11_class_options(MachineClass
*mc
)
4760 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4762 spapr_machine_2_12_class_options(mc
);
4763 smc
->default_caps
.caps
[SPAPR_CAP_HTM
] = SPAPR_CAP_ON
;
4764 compat_props_add(mc
->compat_props
, hw_compat_2_11
, hw_compat_2_11_len
);
4767 DEFINE_SPAPR_MACHINE(2_11
, "2.11", false);
4773 static void spapr_machine_2_10_class_options(MachineClass
*mc
)
4775 spapr_machine_2_11_class_options(mc
);
4776 compat_props_add(mc
->compat_props
, hw_compat_2_10
, hw_compat_2_10_len
);
4779 DEFINE_SPAPR_MACHINE(2_10
, "2.10", false);
4785 static void spapr_machine_2_9_class_options(MachineClass
*mc
)
4787 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4788 static GlobalProperty compat
[] = {
4789 { TYPE_POWERPC_CPU
, "pre-2.10-migration", "on" },
4792 spapr_machine_2_10_class_options(mc
);
4793 compat_props_add(mc
->compat_props
, hw_compat_2_9
, hw_compat_2_9_len
);
4794 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4795 mc
->numa_auto_assign_ram
= numa_legacy_auto_assign_ram
;
4796 smc
->pre_2_10_has_unused_icps
= true;
4797 smc
->resize_hpt_default
= SPAPR_RESIZE_HPT_DISABLED
;
4800 DEFINE_SPAPR_MACHINE(2_9
, "2.9", false);
4806 static void spapr_machine_2_8_class_options(MachineClass
*mc
)
4808 static GlobalProperty compat
[] = {
4809 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "pcie-extended-configuration-space", "off" },
4812 spapr_machine_2_9_class_options(mc
);
4813 compat_props_add(mc
->compat_props
, hw_compat_2_8
, hw_compat_2_8_len
);
4814 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4815 mc
->numa_mem_align_shift
= 23;
4818 DEFINE_SPAPR_MACHINE(2_8
, "2.8", false);
4824 static void phb_placement_2_7(SpaprMachineState
*spapr
, uint32_t index
,
4825 uint64_t *buid
, hwaddr
*pio
,
4826 hwaddr
*mmio32
, hwaddr
*mmio64
,
4827 unsigned n_dma
, uint32_t *liobns
,
4828 hwaddr
*nv2gpa
, hwaddr
*nv2atsd
, Error
**errp
)
4830 /* Legacy PHB placement for pseries-2.7 and earlier machine types */
4831 const uint64_t base_buid
= 0x800000020000000ULL
;
4832 const hwaddr phb_spacing
= 0x1000000000ULL
; /* 64 GiB */
4833 const hwaddr mmio_offset
= 0xa0000000; /* 2 GiB + 512 MiB */
4834 const hwaddr pio_offset
= 0x80000000; /* 2 GiB */
4835 const uint32_t max_index
= 255;
4836 const hwaddr phb0_alignment
= 0x10000000000ULL
; /* 1 TiB */
4838 uint64_t ram_top
= MACHINE(spapr
)->ram_size
;
4839 hwaddr phb0_base
, phb_base
;
4842 /* Do we have device memory? */
4843 if (MACHINE(spapr
)->maxram_size
> ram_top
) {
4844 /* Can't just use maxram_size, because there may be an
4845 * alignment gap between normal and device memory regions
4847 ram_top
= MACHINE(spapr
)->device_memory
->base
+
4848 memory_region_size(&MACHINE(spapr
)->device_memory
->mr
);
4851 phb0_base
= QEMU_ALIGN_UP(ram_top
, phb0_alignment
);
4853 if (index
> max_index
) {
4854 error_setg(errp
, "\"index\" for PAPR PHB is too large (max %u)",
4859 *buid
= base_buid
+ index
;
4860 for (i
= 0; i
< n_dma
; ++i
) {
4861 liobns
[i
] = SPAPR_PCI_LIOBN(index
, i
);
4864 phb_base
= phb0_base
+ index
* phb_spacing
;
4865 *pio
= phb_base
+ pio_offset
;
4866 *mmio32
= phb_base
+ mmio_offset
;
4868 * We don't set the 64-bit MMIO window, relying on the PHB's
4869 * fallback behaviour of automatically splitting a large "32-bit"
4870 * window into contiguous 32-bit and 64-bit windows
4877 static void spapr_machine_2_7_class_options(MachineClass
*mc
)
4879 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4880 static GlobalProperty compat
[] = {
4881 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "mem_win_size", "0xf80000000", },
4882 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "mem64_win_size", "0", },
4883 { TYPE_POWERPC_CPU
, "pre-2.8-migration", "on", },
4884 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "pre-2.8-migration", "on", },
4887 spapr_machine_2_8_class_options(mc
);
4888 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("power7_v2.3");
4889 mc
->default_machine_opts
= "modern-hotplug-events=off";
4890 compat_props_add(mc
->compat_props
, hw_compat_2_7
, hw_compat_2_7_len
);
4891 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4892 smc
->phb_placement
= phb_placement_2_7
;
4895 DEFINE_SPAPR_MACHINE(2_7
, "2.7", false);
4901 static void spapr_machine_2_6_class_options(MachineClass
*mc
)
4903 static GlobalProperty compat
[] = {
4904 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "ddw", "off" },
4907 spapr_machine_2_7_class_options(mc
);
4908 mc
->has_hotpluggable_cpus
= false;
4909 compat_props_add(mc
->compat_props
, hw_compat_2_6
, hw_compat_2_6_len
);
4910 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4913 DEFINE_SPAPR_MACHINE(2_6
, "2.6", false);
4919 static void spapr_machine_2_5_class_options(MachineClass
*mc
)
4921 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4922 static GlobalProperty compat
[] = {
4923 { "spapr-vlan", "use-rx-buffer-pools", "off" },
4926 spapr_machine_2_6_class_options(mc
);
4927 smc
->use_ohci_by_default
= true;
4928 compat_props_add(mc
->compat_props
, hw_compat_2_5
, hw_compat_2_5_len
);
4929 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4932 DEFINE_SPAPR_MACHINE(2_5
, "2.5", false);
4938 static void spapr_machine_2_4_class_options(MachineClass
*mc
)
4940 SpaprMachineClass
*smc
= SPAPR_MACHINE_CLASS(mc
);
4942 spapr_machine_2_5_class_options(mc
);
4943 smc
->dr_lmb_enabled
= false;
4944 compat_props_add(mc
->compat_props
, hw_compat_2_4
, hw_compat_2_4_len
);
4947 DEFINE_SPAPR_MACHINE(2_4
, "2.4", false);
4953 static void spapr_machine_2_3_class_options(MachineClass
*mc
)
4955 static GlobalProperty compat
[] = {
4956 { "spapr-pci-host-bridge", "dynamic-reconfiguration", "off" },
4958 spapr_machine_2_4_class_options(mc
);
4959 compat_props_add(mc
->compat_props
, hw_compat_2_3
, hw_compat_2_3_len
);
4960 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4962 DEFINE_SPAPR_MACHINE(2_3
, "2.3", false);
4968 static void spapr_machine_2_2_class_options(MachineClass
*mc
)
4970 static GlobalProperty compat
[] = {
4971 { TYPE_SPAPR_PCI_HOST_BRIDGE
, "mem_win_size", "0x20000000" },
4974 spapr_machine_2_3_class_options(mc
);
4975 compat_props_add(mc
->compat_props
, hw_compat_2_2
, hw_compat_2_2_len
);
4976 compat_props_add(mc
->compat_props
, compat
, G_N_ELEMENTS(compat
));
4977 mc
->default_machine_opts
= "modern-hotplug-events=off,suppress-vmdesc=on";
4979 DEFINE_SPAPR_MACHINE(2_2
, "2.2", false);
4985 static void spapr_machine_2_1_class_options(MachineClass
*mc
)
4987 spapr_machine_2_2_class_options(mc
);
4988 compat_props_add(mc
->compat_props
, hw_compat_2_1
, hw_compat_2_1_len
);
4990 DEFINE_SPAPR_MACHINE(2_1
, "2.1", false);
4992 static void spapr_machine_register_types(void)
4994 type_register_static(&spapr_machine_info
);
4997 type_init(spapr_machine_register_types
)