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3285cf4f AP |
1 | /* |
2 | * Copyright (C) 2010 Citrix Ltd. | |
3 | * | |
4 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
5 | * the COPYING file in the top-level directory. | |
6 | * | |
6b620ca3 PB |
7 | * Contributions after 2012-01-13 are licensed under the terms of the |
8 | * GNU GPL, version 2 or (at your option) any later version. | |
3285cf4f AP |
9 | */ |
10 | ||
21cbfe5f | 11 | #include "qemu/osdep.h" |
039a93b0 | 12 | #include "qemu/units.h" |
9ce94e7c | 13 | |
33c11879 | 14 | #include "cpu.h" |
a2cb15b0 | 15 | #include "hw/pci/pci.h" |
dfb6578d | 16 | #include "hw/pci/pci_host.h" |
0d09e41a | 17 | #include "hw/i386/pc.h" |
4b19de14 | 18 | #include "hw/southbridge/piix.h" |
64552b6b | 19 | #include "hw/irq.h" |
650d103d | 20 | #include "hw/hw.h" |
428c3ece | 21 | #include "hw/i386/apic-msidef.h" |
0d09e41a | 22 | #include "hw/xen/xen_common.h" |
2d0ed5e6 | 23 | #include "hw/xen/xen-legacy-backend.h" |
108f7bba | 24 | #include "hw/xen/xen-bus.h" |
c834596f | 25 | #include "hw/xen/xen-x86.h" |
e688df6b | 26 | #include "qapi/error.h" |
28af9ba2 | 27 | #include "qapi/qapi-commands-migration.h" |
dced4d2f | 28 | #include "qemu/error-report.h" |
db725815 | 29 | #include "qemu/main-loop.h" |
1de7afc9 | 30 | #include "qemu/range.h" |
54d31236 | 31 | #include "sysemu/runstate.h" |
46517dd4 | 32 | #include "sysemu/sysemu.h" |
da278d58 | 33 | #include "sysemu/xen.h" |
9c17d615 | 34 | #include "sysemu/xen-mapcache.h" |
93d43e7e | 35 | #include "trace.h" |
022c62cb | 36 | #include "exec/address-spaces.h" |
432d268c | 37 | |
9ce94e7c | 38 | #include <xen/hvm/ioreq.h> |
8a369e20 | 39 | #include <xen/hvm/e820.h> |
9ce94e7c | 40 | |
04b0de0e | 41 | //#define DEBUG_XEN_HVM |
9ce94e7c | 42 | |
04b0de0e | 43 | #ifdef DEBUG_XEN_HVM |
9ce94e7c AS |
44 | #define DPRINTF(fmt, ...) \ |
45 | do { fprintf(stderr, "xen: " fmt, ## __VA_ARGS__); } while (0) | |
46 | #else | |
47 | #define DPRINTF(fmt, ...) \ | |
48 | do { } while (0) | |
49 | #endif | |
50 | ||
ce76b8a8 | 51 | static MemoryRegion ram_memory, ram_640k, ram_lo, ram_hi; |
c65adf9b | 52 | static MemoryRegion *framebuffer; |
39f42439 | 53 | static bool xen_in_migration; |
ce76b8a8 | 54 | |
9ce94e7c | 55 | /* Compatibility with older version */ |
37f9e258 DS |
56 | |
57 | /* This allows QEMU to build on a system that has Xen 4.5 or earlier | |
58 | * installed. This here (not in hw/xen/xen_common.h) because xen/hvm/ioreq.h | |
59 | * needs to be included before this block and hw/xen/xen_common.h needs to | |
60 | * be included before xen/hvm/ioreq.h | |
61 | */ | |
62 | #ifndef IOREQ_TYPE_VMWARE_PORT | |
63 | #define IOREQ_TYPE_VMWARE_PORT 3 | |
64 | struct vmware_regs { | |
65 | uint32_t esi; | |
66 | uint32_t edi; | |
67 | uint32_t ebx; | |
68 | uint32_t ecx; | |
69 | uint32_t edx; | |
70 | }; | |
71 | typedef struct vmware_regs vmware_regs_t; | |
72 | ||
73 | struct shared_vmport_iopage { | |
74 | struct vmware_regs vcpu_vmport_regs[1]; | |
75 | }; | |
76 | typedef struct shared_vmport_iopage shared_vmport_iopage_t; | |
77 | #endif | |
78 | ||
9ce94e7c AS |
79 | static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i) |
80 | { | |
81 | return shared_page->vcpu_ioreq[i].vp_eport; | |
82 | } | |
83 | static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu) | |
84 | { | |
85 | return &shared_page->vcpu_ioreq[vcpu]; | |
86 | } | |
9ce94e7c AS |
87 | |
88 | #define BUFFER_IO_MAX_DELAY 100 | |
89 | ||
b4dd7802 | 90 | typedef struct XenPhysmap { |
a8170e5e | 91 | hwaddr start_addr; |
b4dd7802 | 92 | ram_addr_t size; |
dc6c4fe8 | 93 | const char *name; |
a8170e5e | 94 | hwaddr phys_offset; |
b4dd7802 AP |
95 | |
96 | QLIST_ENTRY(XenPhysmap) list; | |
97 | } XenPhysmap; | |
98 | ||
04a8f72e ID |
99 | static QLIST_HEAD(, XenPhysmap) xen_physmap; |
100 | ||
dfb6578d PD |
101 | typedef struct XenPciDevice { |
102 | PCIDevice *pci_dev; | |
103 | uint32_t sbdf; | |
104 | QLIST_ENTRY(XenPciDevice) entry; | |
105 | } XenPciDevice; | |
106 | ||
9ce94e7c | 107 | typedef struct XenIOState { |
3996e85c | 108 | ioservid_t ioservid; |
9ce94e7c | 109 | shared_iopage_t *shared_page; |
37f9e258 | 110 | shared_vmport_iopage_t *shared_vmport_page; |
9ce94e7c AS |
111 | buffered_iopage_t *buffered_io_page; |
112 | QEMUTimer *buffered_io_timer; | |
37f9e258 | 113 | CPUState **cpu_by_vcpu_id; |
9ce94e7c AS |
114 | /* the evtchn port for polling the notification, */ |
115 | evtchn_port_t *ioreq_local_port; | |
71cec1ed PD |
116 | /* evtchn remote and local ports for buffered io */ |
117 | evtchn_port_t bufioreq_remote_port; | |
fda1f768 | 118 | evtchn_port_t bufioreq_local_port; |
9ce94e7c | 119 | /* the evtchn fd for polling */ |
a2db2a1e | 120 | xenevtchn_handle *xce_handle; |
9ce94e7c AS |
121 | /* which vcpu we are serving */ |
122 | int send_vcpu; | |
123 | ||
29321335 | 124 | struct xs_handle *xenstore; |
20581d20 | 125 | MemoryListener memory_listener; |
3996e85c | 126 | MemoryListener io_listener; |
dfb6578d | 127 | QLIST_HEAD(, XenPciDevice) dev_list; |
3996e85c | 128 | DeviceListener device_listener; |
a8170e5e | 129 | hwaddr free_phys_offset; |
b4dd7802 | 130 | const XenPhysmap *log_for_dirtybit; |
34fbbc16 AP |
131 | /* Buffer used by xen_sync_dirty_bitmap */ |
132 | unsigned long *dirty_bitmap; | |
29321335 | 133 | |
9ce94e7c | 134 | Notifier exit; |
da98c8eb | 135 | Notifier suspend; |
11addd0a | 136 | Notifier wakeup; |
9ce94e7c AS |
137 | } XenIOState; |
138 | ||
41445300 AP |
139 | /* Xen specific function for piix pci */ |
140 | ||
141 | int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num) | |
142 | { | |
143 | return irq_num + ((pci_dev->devfn >> 3) << 2); | |
144 | } | |
145 | ||
146 | void xen_piix3_set_irq(void *opaque, int irq_num, int level) | |
147 | { | |
8f25e754 PD |
148 | xen_set_pci_intx_level(xen_domid, 0, 0, irq_num >> 2, |
149 | irq_num & 3, level); | |
41445300 AP |
150 | } |
151 | ||
152 | void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len) | |
153 | { | |
154 | int i; | |
155 | ||
156 | /* Scan for updates to PCI link routes (0x60-0x63). */ | |
157 | for (i = 0; i < len; i++) { | |
158 | uint8_t v = (val >> (8 * i)) & 0xff; | |
159 | if (v & 0x80) { | |
160 | v = 0; | |
161 | } | |
162 | v &= 0xf; | |
4b19de14 PMD |
163 | if (((address + i) >= PIIX_PIRQCA) && ((address + i) <= PIIX_PIRQCD)) { |
164 | xen_set_pci_link_route(xen_domid, address + i - PIIX_PIRQCA, v); | |
41445300 AP |
165 | } |
166 | } | |
167 | } | |
168 | ||
428c3ece SS |
169 | int xen_is_pirq_msi(uint32_t msi_data) |
170 | { | |
171 | /* If vector is 0, the msi is remapped into a pirq, passed as | |
172 | * dest_id. | |
173 | */ | |
174 | return ((msi_data & MSI_DATA_VECTOR_MASK) >> MSI_DATA_VECTOR_SHIFT) == 0; | |
175 | } | |
176 | ||
f1dbf015 WL |
177 | void xen_hvm_inject_msi(uint64_t addr, uint32_t data) |
178 | { | |
8f25e754 | 179 | xen_inject_msi(xen_domid, addr, data); |
f1dbf015 WL |
180 | } |
181 | ||
da98c8eb | 182 | static void xen_suspend_notifier(Notifier *notifier, void *data) |
c9622478 | 183 | { |
da98c8eb | 184 | xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 3); |
c9622478 AP |
185 | } |
186 | ||
9c11a8ac AP |
187 | /* Xen Interrupt Controller */ |
188 | ||
189 | static void xen_set_irq(void *opaque, int irq, int level) | |
190 | { | |
8f25e754 | 191 | xen_set_isa_irq_level(xen_domid, irq, level); |
9c11a8ac AP |
192 | } |
193 | ||
194 | qemu_irq *xen_interrupt_controller_init(void) | |
195 | { | |
196 | return qemu_allocate_irqs(xen_set_irq, NULL, 16); | |
197 | } | |
198 | ||
432d268c JN |
199 | /* Memory Ops */ |
200 | ||
91176e31 | 201 | static void xen_ram_init(PCMachineState *pcms, |
3c2a9669 | 202 | ram_addr_t ram_size, MemoryRegion **ram_memory_p) |
432d268c | 203 | { |
f0bb276b | 204 | X86MachineState *x86ms = X86_MACHINE(pcms); |
ce76b8a8 | 205 | MemoryRegion *sysmem = get_system_memory(); |
ce76b8a8 | 206 | ram_addr_t block_len; |
f0bb276b PB |
207 | uint64_t user_lowmem = |
208 | object_property_get_uint(qdev_get_machine(), | |
9a45729d | 209 | PC_MACHINE_MAX_RAM_BELOW_4G, |
f0bb276b | 210 | &error_abort); |
432d268c | 211 | |
a9dd38db | 212 | /* Handle the machine opt max-ram-below-4g. It is basically doing |
c4f5cdc5 DS |
213 | * min(xen limit, user limit). |
214 | */ | |
5ec7d098 GH |
215 | if (!user_lowmem) { |
216 | user_lowmem = HVM_BELOW_4G_RAM_END; /* default */ | |
217 | } | |
c4f5cdc5 DS |
218 | if (HVM_BELOW_4G_RAM_END <= user_lowmem) { |
219 | user_lowmem = HVM_BELOW_4G_RAM_END; | |
8a369e20 | 220 | } |
432d268c | 221 | |
c4f5cdc5 | 222 | if (ram_size >= user_lowmem) { |
f0bb276b PB |
223 | x86ms->above_4g_mem_size = ram_size - user_lowmem; |
224 | x86ms->below_4g_mem_size = user_lowmem; | |
432d268c | 225 | } else { |
f0bb276b PB |
226 | x86ms->above_4g_mem_size = 0; |
227 | x86ms->below_4g_mem_size = ram_size; | |
432d268c | 228 | } |
f0bb276b | 229 | if (!x86ms->above_4g_mem_size) { |
c4f5cdc5 DS |
230 | block_len = ram_size; |
231 | } else { | |
232 | /* | |
233 | * Xen does not allocate the memory continuously, it keeps a | |
234 | * hole of the size computed above or passed in. | |
235 | */ | |
039a93b0 | 236 | block_len = (4 * GiB) + x86ms->above_4g_mem_size; |
c4f5cdc5 | 237 | } |
98a99ce0 | 238 | memory_region_init_ram(&ram_memory, NULL, "xen.ram", block_len, |
f8ed85ac | 239 | &error_fatal); |
c4f5cdc5 | 240 | *ram_memory_p = &ram_memory; |
432d268c | 241 | |
2c9b15ca | 242 | memory_region_init_alias(&ram_640k, NULL, "xen.ram.640k", |
ce76b8a8 AK |
243 | &ram_memory, 0, 0xa0000); |
244 | memory_region_add_subregion(sysmem, 0, &ram_640k); | |
8a369e20 AP |
245 | /* Skip of the VGA IO memory space, it will be registered later by the VGA |
246 | * emulated device. | |
247 | * | |
248 | * The area between 0xc0000 and 0x100000 will be used by SeaBIOS to load | |
249 | * the Options ROM, so it is registered here as RAM. | |
250 | */ | |
2c9b15ca | 251 | memory_region_init_alias(&ram_lo, NULL, "xen.ram.lo", |
3c2a9669 | 252 | &ram_memory, 0xc0000, |
f0bb276b | 253 | x86ms->below_4g_mem_size - 0xc0000); |
ce76b8a8 | 254 | memory_region_add_subregion(sysmem, 0xc0000, &ram_lo); |
f0bb276b | 255 | if (x86ms->above_4g_mem_size > 0) { |
2c9b15ca | 256 | memory_region_init_alias(&ram_hi, NULL, "xen.ram.hi", |
ce76b8a8 | 257 | &ram_memory, 0x100000000ULL, |
f0bb276b | 258 | x86ms->above_4g_mem_size); |
ce76b8a8 | 259 | memory_region_add_subregion(sysmem, 0x100000000ULL, &ram_hi); |
432d268c | 260 | } |
432d268c JN |
261 | } |
262 | ||
37aa7a0e MA |
263 | void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr, |
264 | Error **errp) | |
432d268c JN |
265 | { |
266 | unsigned long nr_pfn; | |
267 | xen_pfn_t *pfn_list; | |
268 | int i; | |
269 | ||
c234572d AP |
270 | if (runstate_check(RUN_STATE_INMIGRATE)) { |
271 | /* RAM already populated in Xen */ | |
272 | fprintf(stderr, "%s: do not alloc "RAM_ADDR_FMT | |
273 | " bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE\n", | |
f0bb276b | 274 | __func__, size, ram_addr); |
c234572d AP |
275 | return; |
276 | } | |
277 | ||
ce76b8a8 AK |
278 | if (mr == &ram_memory) { |
279 | return; | |
280 | } | |
281 | ||
432d268c JN |
282 | trace_xen_ram_alloc(ram_addr, size); |
283 | ||
284 | nr_pfn = size >> TARGET_PAGE_BITS; | |
7267c094 | 285 | pfn_list = g_malloc(sizeof (*pfn_list) * nr_pfn); |
432d268c JN |
286 | |
287 | for (i = 0; i < nr_pfn; i++) { | |
288 | pfn_list[i] = (ram_addr >> TARGET_PAGE_BITS) + i; | |
289 | } | |
290 | ||
291 | if (xc_domain_populate_physmap_exact(xen_xc, xen_domid, nr_pfn, 0, 0, pfn_list)) { | |
37aa7a0e MA |
292 | error_setg(errp, "xen: failed to populate ram at " RAM_ADDR_FMT, |
293 | ram_addr); | |
432d268c JN |
294 | } |
295 | ||
7267c094 | 296 | g_free(pfn_list); |
432d268c JN |
297 | } |
298 | ||
04a8f72e | 299 | static XenPhysmap *get_physmapping(hwaddr start_addr, ram_addr_t size) |
b4dd7802 AP |
300 | { |
301 | XenPhysmap *physmap = NULL; | |
302 | ||
303 | start_addr &= TARGET_PAGE_MASK; | |
304 | ||
04a8f72e | 305 | QLIST_FOREACH(physmap, &xen_physmap, list) { |
b4dd7802 AP |
306 | if (range_covers_byte(physmap->start_addr, physmap->size, start_addr)) { |
307 | return physmap; | |
308 | } | |
309 | } | |
310 | return NULL; | |
311 | } | |
312 | ||
04a8f72e | 313 | static hwaddr xen_phys_offset_to_gaddr(hwaddr phys_offset, ram_addr_t size) |
cd1ba7de | 314 | { |
04a8f72e | 315 | hwaddr addr = phys_offset & TARGET_PAGE_MASK; |
cd1ba7de AP |
316 | XenPhysmap *physmap = NULL; |
317 | ||
04a8f72e | 318 | QLIST_FOREACH(physmap, &xen_physmap, list) { |
cd1ba7de | 319 | if (range_covers_byte(physmap->phys_offset, physmap->size, addr)) { |
04a8f72e | 320 | return physmap->start_addr + (phys_offset - physmap->phys_offset); |
cd1ba7de AP |
321 | } |
322 | } | |
323 | ||
04a8f72e | 324 | return phys_offset; |
cd1ba7de AP |
325 | } |
326 | ||
04a8f72e | 327 | #ifdef XEN_COMPAT_PHYSMAP |
697b66d0 ID |
328 | static int xen_save_physmap(XenIOState *state, XenPhysmap *physmap) |
329 | { | |
330 | char path[80], value[17]; | |
331 | ||
332 | snprintf(path, sizeof(path), | |
333 | "/local/domain/0/device-model/%d/physmap/%"PRIx64"/start_addr", | |
334 | xen_domid, (uint64_t)physmap->phys_offset); | |
335 | snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)physmap->start_addr); | |
336 | if (!xs_write(state->xenstore, 0, path, value, strlen(value))) { | |
337 | return -1; | |
338 | } | |
339 | snprintf(path, sizeof(path), | |
340 | "/local/domain/0/device-model/%d/physmap/%"PRIx64"/size", | |
341 | xen_domid, (uint64_t)physmap->phys_offset); | |
342 | snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)physmap->size); | |
343 | if (!xs_write(state->xenstore, 0, path, value, strlen(value))) { | |
344 | return -1; | |
345 | } | |
346 | if (physmap->name) { | |
347 | snprintf(path, sizeof(path), | |
348 | "/local/domain/0/device-model/%d/physmap/%"PRIx64"/name", | |
349 | xen_domid, (uint64_t)physmap->phys_offset); | |
350 | if (!xs_write(state->xenstore, 0, path, | |
351 | physmap->name, strlen(physmap->name))) { | |
352 | return -1; | |
353 | } | |
354 | } | |
355 | return 0; | |
356 | } | |
331b5189 ID |
357 | #else |
358 | static int xen_save_physmap(XenIOState *state, XenPhysmap *physmap) | |
359 | { | |
360 | return 0; | |
361 | } | |
362 | #endif | |
697b66d0 | 363 | |
b4dd7802 | 364 | static int xen_add_to_physmap(XenIOState *state, |
a8170e5e | 365 | hwaddr start_addr, |
b4dd7802 | 366 | ram_addr_t size, |
20581d20 | 367 | MemoryRegion *mr, |
a8170e5e | 368 | hwaddr offset_within_region) |
b4dd7802 | 369 | { |
2cbf8903 | 370 | unsigned long nr_pages; |
b4dd7802 AP |
371 | int rc = 0; |
372 | XenPhysmap *physmap = NULL; | |
a8170e5e AK |
373 | hwaddr pfn, start_gpfn; |
374 | hwaddr phys_offset = memory_region_get_ram_addr(mr); | |
3e1f5086 | 375 | const char *mr_name; |
b4dd7802 | 376 | |
04a8f72e | 377 | if (get_physmapping(start_addr, size)) { |
b4dd7802 AP |
378 | return 0; |
379 | } | |
380 | if (size <= 0) { | |
381 | return -1; | |
382 | } | |
383 | ||
ebed8505 SS |
384 | /* Xen can only handle a single dirty log region for now and we want |
385 | * the linear framebuffer to be that region. | |
386 | * Avoid tracking any regions that is not videoram and avoid tracking | |
387 | * the legacy vga region. */ | |
20581d20 AK |
388 | if (mr == framebuffer && start_addr > 0xbffff) { |
389 | goto go_physmap; | |
ebed8505 SS |
390 | } |
391 | return -1; | |
392 | ||
393 | go_physmap: | |
f1b8caf1 SE |
394 | DPRINTF("mapping vram to %"HWADDR_PRIx" - %"HWADDR_PRIx"\n", |
395 | start_addr, start_addr + size); | |
b4dd7802 | 396 | |
331b5189 ID |
397 | mr_name = memory_region_name(mr); |
398 | ||
399 | physmap = g_malloc(sizeof(XenPhysmap)); | |
400 | ||
401 | physmap->start_addr = start_addr; | |
402 | physmap->size = size; | |
403 | physmap->name = mr_name; | |
404 | physmap->phys_offset = phys_offset; | |
405 | ||
04a8f72e | 406 | QLIST_INSERT_HEAD(&xen_physmap, physmap, list); |
331b5189 ID |
407 | |
408 | if (runstate_check(RUN_STATE_INMIGRATE)) { | |
409 | /* Now when we have a physmap entry we can replace a dummy mapping with | |
410 | * a real one of guest foreign memory. */ | |
411 | uint8_t *p = xen_replace_cache_entry(phys_offset, start_addr, size); | |
412 | assert(p && p == memory_region_get_ram_ptr(mr)); | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
b4dd7802 AP |
417 | pfn = phys_offset >> TARGET_PAGE_BITS; |
418 | start_gpfn = start_addr >> TARGET_PAGE_BITS; | |
2cbf8903 RL |
419 | nr_pages = size >> TARGET_PAGE_BITS; |
420 | rc = xendevicemodel_relocate_memory(xen_dmod, xen_domid, nr_pages, pfn, | |
421 | start_gpfn); | |
422 | if (rc) { | |
423 | int saved_errno = errno; | |
424 | ||
425 | error_report("relocate_memory %lu pages from GFN %"HWADDR_PRIx | |
426 | " to GFN %"HWADDR_PRIx" failed: %s", | |
427 | nr_pages, pfn, start_gpfn, strerror(saved_errno)); | |
428 | errno = saved_errno; | |
429 | return -1; | |
b4dd7802 AP |
430 | } |
431 | ||
2cbf8903 | 432 | rc = xendevicemodel_pin_memory_cacheattr(xen_dmod, xen_domid, |
b4dd7802 | 433 | start_addr >> TARGET_PAGE_BITS, |
8b6bb0ad | 434 | (start_addr + size - 1) >> TARGET_PAGE_BITS, |
b4dd7802 | 435 | XEN_DOMCTL_MEM_CACHEATTR_WB); |
2cbf8903 RL |
436 | if (rc) { |
437 | error_report("pin_memory_cacheattr failed: %s", strerror(errno)); | |
438 | } | |
697b66d0 | 439 | return xen_save_physmap(state, physmap); |
b4dd7802 AP |
440 | } |
441 | ||
442 | static int xen_remove_from_physmap(XenIOState *state, | |
a8170e5e | 443 | hwaddr start_addr, |
b4dd7802 AP |
444 | ram_addr_t size) |
445 | { | |
b4dd7802 AP |
446 | int rc = 0; |
447 | XenPhysmap *physmap = NULL; | |
a8170e5e | 448 | hwaddr phys_offset = 0; |
b4dd7802 | 449 | |
04a8f72e | 450 | physmap = get_physmapping(start_addr, size); |
b4dd7802 AP |
451 | if (physmap == NULL) { |
452 | return -1; | |
453 | } | |
454 | ||
455 | phys_offset = physmap->phys_offset; | |
456 | size = physmap->size; | |
457 | ||
d18e173a WL |
458 | DPRINTF("unmapping vram to %"HWADDR_PRIx" - %"HWADDR_PRIx", at " |
459 | "%"HWADDR_PRIx"\n", start_addr, start_addr + size, phys_offset); | |
b4dd7802 AP |
460 | |
461 | size >>= TARGET_PAGE_BITS; | |
462 | start_addr >>= TARGET_PAGE_BITS; | |
463 | phys_offset >>= TARGET_PAGE_BITS; | |
2cbf8903 RL |
464 | rc = xendevicemodel_relocate_memory(xen_dmod, xen_domid, size, start_addr, |
465 | phys_offset); | |
466 | if (rc) { | |
467 | int saved_errno = errno; | |
468 | ||
469 | error_report("relocate_memory "RAM_ADDR_FMT" pages" | |
470 | " from GFN %"HWADDR_PRIx | |
471 | " to GFN %"HWADDR_PRIx" failed: %s", | |
472 | size, start_addr, phys_offset, strerror(saved_errno)); | |
473 | errno = saved_errno; | |
474 | return -1; | |
b4dd7802 AP |
475 | } |
476 | ||
477 | QLIST_REMOVE(physmap, list); | |
478 | if (state->log_for_dirtybit == physmap) { | |
479 | state->log_for_dirtybit = NULL; | |
34fbbc16 AP |
480 | g_free(state->dirty_bitmap); |
481 | state->dirty_bitmap = NULL; | |
b4dd7802 | 482 | } |
c5633d99 | 483 | g_free(physmap); |
b4dd7802 AP |
484 | |
485 | return 0; | |
486 | } | |
487 | ||
20581d20 AK |
488 | static void xen_set_memory(struct MemoryListener *listener, |
489 | MemoryRegionSection *section, | |
490 | bool add) | |
b4dd7802 | 491 | { |
20581d20 | 492 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
a8170e5e | 493 | hwaddr start_addr = section->offset_within_address_space; |
052e87b0 | 494 | ram_addr_t size = int128_get64(section->size); |
2d1a35be | 495 | bool log_dirty = memory_region_is_logging(section->mr, DIRTY_MEMORY_VGA); |
b4dd7802 AP |
496 | hvmmem_type_t mem_type; |
497 | ||
3996e85c PD |
498 | if (section->mr == &ram_memory) { |
499 | return; | |
500 | } else { | |
501 | if (add) { | |
260cabed | 502 | xen_map_memory_section(xen_domid, state->ioservid, |
3996e85c PD |
503 | section); |
504 | } else { | |
260cabed | 505 | xen_unmap_memory_section(xen_domid, state->ioservid, |
3996e85c PD |
506 | section); |
507 | } | |
508 | } | |
509 | ||
20581d20 | 510 | if (!memory_region_is_ram(section->mr)) { |
b4dd7802 AP |
511 | return; |
512 | } | |
513 | ||
3996e85c | 514 | if (log_dirty != add) { |
20581d20 AK |
515 | return; |
516 | } | |
517 | ||
518 | trace_xen_client_set_memory(start_addr, size, log_dirty); | |
b4dd7802 AP |
519 | |
520 | start_addr &= TARGET_PAGE_MASK; | |
521 | size = TARGET_PAGE_ALIGN(size); | |
20581d20 AK |
522 | |
523 | if (add) { | |
524 | if (!memory_region_is_rom(section->mr)) { | |
525 | xen_add_to_physmap(state, start_addr, size, | |
526 | section->mr, section->offset_within_region); | |
527 | } else { | |
528 | mem_type = HVMMEM_ram_ro; | |
8f25e754 PD |
529 | if (xen_set_mem_type(xen_domid, mem_type, |
530 | start_addr >> TARGET_PAGE_BITS, | |
531 | size >> TARGET_PAGE_BITS)) { | |
532 | DPRINTF("xen_set_mem_type error, addr: "TARGET_FMT_plx"\n", | |
20581d20 AK |
533 | start_addr); |
534 | } | |
b4dd7802 | 535 | } |
20581d20 | 536 | } else { |
b4dd7802 AP |
537 | if (xen_remove_from_physmap(state, start_addr, size) < 0) { |
538 | DPRINTF("physmapping does not exist at "TARGET_FMT_plx"\n", start_addr); | |
539 | } | |
b4dd7802 AP |
540 | } |
541 | } | |
542 | ||
20581d20 AK |
543 | static void xen_region_add(MemoryListener *listener, |
544 | MemoryRegionSection *section) | |
545 | { | |
dfde4e6e | 546 | memory_region_ref(section->mr); |
20581d20 AK |
547 | xen_set_memory(listener, section, true); |
548 | } | |
549 | ||
550 | static void xen_region_del(MemoryListener *listener, | |
551 | MemoryRegionSection *section) | |
552 | { | |
553 | xen_set_memory(listener, section, false); | |
dfde4e6e | 554 | memory_region_unref(section->mr); |
20581d20 AK |
555 | } |
556 | ||
3996e85c PD |
557 | static void xen_io_add(MemoryListener *listener, |
558 | MemoryRegionSection *section) | |
559 | { | |
560 | XenIOState *state = container_of(listener, XenIOState, io_listener); | |
a8ff4316 | 561 | MemoryRegion *mr = section->mr; |
3996e85c | 562 | |
a8ff4316 PD |
563 | if (mr->ops == &unassigned_io_ops) { |
564 | return; | |
565 | } | |
566 | ||
567 | memory_region_ref(mr); | |
3996e85c | 568 | |
260cabed | 569 | xen_map_io_section(xen_domid, state->ioservid, section); |
3996e85c PD |
570 | } |
571 | ||
572 | static void xen_io_del(MemoryListener *listener, | |
573 | MemoryRegionSection *section) | |
574 | { | |
575 | XenIOState *state = container_of(listener, XenIOState, io_listener); | |
a8ff4316 PD |
576 | MemoryRegion *mr = section->mr; |
577 | ||
578 | if (mr->ops == &unassigned_io_ops) { | |
579 | return; | |
580 | } | |
3996e85c | 581 | |
260cabed | 582 | xen_unmap_io_section(xen_domid, state->ioservid, section); |
3996e85c | 583 | |
a8ff4316 | 584 | memory_region_unref(mr); |
3996e85c PD |
585 | } |
586 | ||
587 | static void xen_device_realize(DeviceListener *listener, | |
7d37435b | 588 | DeviceState *dev) |
3996e85c PD |
589 | { |
590 | XenIOState *state = container_of(listener, XenIOState, device_listener); | |
591 | ||
592 | if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { | |
593 | PCIDevice *pci_dev = PCI_DEVICE(dev); | |
dfb6578d PD |
594 | XenPciDevice *xendev = g_new(XenPciDevice, 1); |
595 | ||
596 | xendev->pci_dev = pci_dev; | |
597 | xendev->sbdf = PCI_BUILD_BDF(pci_dev_bus_num(pci_dev), | |
598 | pci_dev->devfn); | |
599 | QLIST_INSERT_HEAD(&state->dev_list, xendev, entry); | |
3996e85c | 600 | |
260cabed | 601 | xen_map_pcidev(xen_domid, state->ioservid, pci_dev); |
3996e85c PD |
602 | } |
603 | } | |
604 | ||
605 | static void xen_device_unrealize(DeviceListener *listener, | |
7d37435b | 606 | DeviceState *dev) |
3996e85c PD |
607 | { |
608 | XenIOState *state = container_of(listener, XenIOState, device_listener); | |
609 | ||
610 | if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { | |
611 | PCIDevice *pci_dev = PCI_DEVICE(dev); | |
dfb6578d | 612 | XenPciDevice *xendev, *next; |
3996e85c | 613 | |
260cabed | 614 | xen_unmap_pcidev(xen_domid, state->ioservid, pci_dev); |
dfb6578d PD |
615 | |
616 | QLIST_FOREACH_SAFE(xendev, &state->dev_list, entry, next) { | |
617 | if (xendev->pci_dev == pci_dev) { | |
618 | QLIST_REMOVE(xendev, entry); | |
619 | g_free(xendev); | |
620 | break; | |
621 | } | |
622 | } | |
3996e85c PD |
623 | } |
624 | } | |
625 | ||
b18620cf | 626 | static void xen_sync_dirty_bitmap(XenIOState *state, |
a8170e5e | 627 | hwaddr start_addr, |
b18620cf | 628 | ram_addr_t size) |
b4dd7802 | 629 | { |
a8170e5e | 630 | hwaddr npages = size >> TARGET_PAGE_BITS; |
b4dd7802 | 631 | const int width = sizeof(unsigned long) * 8; |
34fbbc16 | 632 | size_t bitmap_size = DIV_ROUND_UP(npages, width); |
b4dd7802 AP |
633 | int rc, i, j; |
634 | const XenPhysmap *physmap = NULL; | |
635 | ||
04a8f72e | 636 | physmap = get_physmapping(start_addr, size); |
b4dd7802 AP |
637 | if (physmap == NULL) { |
638 | /* not handled */ | |
b18620cf | 639 | return; |
b4dd7802 AP |
640 | } |
641 | ||
642 | if (state->log_for_dirtybit == NULL) { | |
643 | state->log_for_dirtybit = physmap; | |
34fbbc16 | 644 | state->dirty_bitmap = g_new(unsigned long, bitmap_size); |
b4dd7802 | 645 | } else if (state->log_for_dirtybit != physmap) { |
b18620cf AP |
646 | /* Only one range for dirty bitmap can be tracked. */ |
647 | return; | |
b4dd7802 | 648 | } |
b4dd7802 | 649 | |
8f25e754 | 650 | rc = xen_track_dirty_vram(xen_domid, start_addr >> TARGET_PAGE_BITS, |
34fbbc16 | 651 | npages, state->dirty_bitmap); |
b18620cf | 652 | if (rc < 0) { |
74bc4151 RPM |
653 | #ifndef ENODATA |
654 | #define ENODATA ENOENT | |
655 | #endif | |
656 | if (errno == ENODATA) { | |
8aba7dc0 AP |
657 | memory_region_set_dirty(framebuffer, 0, size); |
658 | DPRINTF("xen: track_dirty_vram failed (0x" TARGET_FMT_plx | |
b18620cf | 659 | ", 0x" TARGET_FMT_plx "): %s\n", |
74bc4151 | 660 | start_addr, start_addr + size, strerror(errno)); |
b18620cf AP |
661 | } |
662 | return; | |
b4dd7802 AP |
663 | } |
664 | ||
34fbbc16 AP |
665 | for (i = 0; i < bitmap_size; i++) { |
666 | unsigned long map = state->dirty_bitmap[i]; | |
b4dd7802 | 667 | while (map != 0) { |
adf9d70b | 668 | j = ctzl(map); |
b4dd7802 | 669 | map &= ~(1ul << j); |
5a97065b | 670 | memory_region_set_dirty(framebuffer, |
fd4aa979 BS |
671 | (i * width + j) * TARGET_PAGE_SIZE, |
672 | TARGET_PAGE_SIZE); | |
b4dd7802 AP |
673 | }; |
674 | } | |
b4dd7802 AP |
675 | } |
676 | ||
20581d20 | 677 | static void xen_log_start(MemoryListener *listener, |
b2dfd71c PB |
678 | MemoryRegionSection *section, |
679 | int old, int new) | |
b4dd7802 | 680 | { |
20581d20 | 681 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
b4dd7802 | 682 | |
b2dfd71c PB |
683 | if (new & ~old & (1 << DIRTY_MEMORY_VGA)) { |
684 | xen_sync_dirty_bitmap(state, section->offset_within_address_space, | |
685 | int128_get64(section->size)); | |
686 | } | |
b4dd7802 AP |
687 | } |
688 | ||
b2dfd71c PB |
689 | static void xen_log_stop(MemoryListener *listener, MemoryRegionSection *section, |
690 | int old, int new) | |
b4dd7802 | 691 | { |
20581d20 | 692 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
b4dd7802 | 693 | |
b2dfd71c PB |
694 | if (old & ~new & (1 << DIRTY_MEMORY_VGA)) { |
695 | state->log_for_dirtybit = NULL; | |
34fbbc16 AP |
696 | g_free(state->dirty_bitmap); |
697 | state->dirty_bitmap = NULL; | |
b2dfd71c | 698 | /* Disable dirty bit tracking */ |
8f25e754 | 699 | xen_track_dirty_vram(xen_domid, 0, 0, NULL); |
b2dfd71c | 700 | } |
b4dd7802 AP |
701 | } |
702 | ||
20581d20 | 703 | static void xen_log_sync(MemoryListener *listener, MemoryRegionSection *section) |
b4dd7802 | 704 | { |
20581d20 | 705 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
b4dd7802 | 706 | |
b18620cf | 707 | xen_sync_dirty_bitmap(state, section->offset_within_address_space, |
052e87b0 | 708 | int128_get64(section->size)); |
b4dd7802 AP |
709 | } |
710 | ||
20581d20 AK |
711 | static void xen_log_global_start(MemoryListener *listener) |
712 | { | |
39f42439 AP |
713 | if (xen_enabled()) { |
714 | xen_in_migration = true; | |
715 | } | |
20581d20 AK |
716 | } |
717 | ||
718 | static void xen_log_global_stop(MemoryListener *listener) | |
b4dd7802 | 719 | { |
39f42439 | 720 | xen_in_migration = false; |
b4dd7802 AP |
721 | } |
722 | ||
20581d20 AK |
723 | static MemoryListener xen_memory_listener = { |
724 | .region_add = xen_region_add, | |
725 | .region_del = xen_region_del, | |
b4dd7802 AP |
726 | .log_start = xen_log_start, |
727 | .log_stop = xen_log_stop, | |
20581d20 AK |
728 | .log_sync = xen_log_sync, |
729 | .log_global_start = xen_log_global_start, | |
730 | .log_global_stop = xen_log_global_stop, | |
72e22d2f | 731 | .priority = 10, |
b4dd7802 | 732 | }; |
432d268c | 733 | |
3996e85c PD |
734 | static MemoryListener xen_io_listener = { |
735 | .region_add = xen_io_add, | |
736 | .region_del = xen_io_del, | |
737 | .priority = 10, | |
738 | }; | |
739 | ||
740 | static DeviceListener xen_device_listener = { | |
741 | .realize = xen_device_realize, | |
742 | .unrealize = xen_device_unrealize, | |
743 | }; | |
744 | ||
9ce94e7c AS |
745 | /* get the ioreq packets from share mem */ |
746 | static ioreq_t *cpu_get_ioreq_from_shared_memory(XenIOState *state, int vcpu) | |
747 | { | |
748 | ioreq_t *req = xen_vcpu_ioreq(state->shared_page, vcpu); | |
749 | ||
750 | if (req->state != STATE_IOREQ_READY) { | |
751 | DPRINTF("I/O request not ready: " | |
752 | "%x, ptr: %x, port: %"PRIx64", " | |
47d3df23 | 753 | "data: %"PRIx64", count: %u, size: %u\n", |
9ce94e7c AS |
754 | req->state, req->data_is_ptr, req->addr, |
755 | req->data, req->count, req->size); | |
756 | return NULL; | |
757 | } | |
758 | ||
759 | xen_rmb(); /* see IOREQ_READY /then/ read contents of ioreq */ | |
760 | ||
761 | req->state = STATE_IOREQ_INPROCESS; | |
762 | return req; | |
763 | } | |
764 | ||
765 | /* use poll to get the port notification */ | |
766 | /* ioreq_vec--out,the */ | |
767 | /* retval--the number of ioreq packet */ | |
768 | static ioreq_t *cpu_get_ioreq(XenIOState *state) | |
769 | { | |
0e11fc69 LX |
770 | MachineState *ms = MACHINE(qdev_get_machine()); |
771 | unsigned int max_cpus = ms->smp.max_cpus; | |
9ce94e7c AS |
772 | int i; |
773 | evtchn_port_t port; | |
774 | ||
a2db2a1e | 775 | port = xenevtchn_pending(state->xce_handle); |
fda1f768 | 776 | if (port == state->bufioreq_local_port) { |
bc72ad67 AB |
777 | timer_mod(state->buffered_io_timer, |
778 | BUFFER_IO_MAX_DELAY + qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); | |
fda1f768 SS |
779 | return NULL; |
780 | } | |
781 | ||
9ce94e7c | 782 | if (port != -1) { |
1cd25a88 | 783 | for (i = 0; i < max_cpus; i++) { |
9ce94e7c AS |
784 | if (state->ioreq_local_port[i] == port) { |
785 | break; | |
786 | } | |
787 | } | |
788 | ||
1cd25a88 | 789 | if (i == max_cpus) { |
9ce94e7c AS |
790 | hw_error("Fatal error while trying to get io event!\n"); |
791 | } | |
792 | ||
793 | /* unmask the wanted port again */ | |
a2db2a1e | 794 | xenevtchn_unmask(state->xce_handle, port); |
9ce94e7c AS |
795 | |
796 | /* get the io packet from shared memory */ | |
797 | state->send_vcpu = i; | |
798 | return cpu_get_ioreq_from_shared_memory(state, i); | |
799 | } | |
800 | ||
801 | /* read error or read nothing */ | |
802 | return NULL; | |
803 | } | |
804 | ||
89a80e74 | 805 | static uint32_t do_inp(uint32_t addr, unsigned long size) |
9ce94e7c AS |
806 | { |
807 | switch (size) { | |
808 | case 1: | |
809 | return cpu_inb(addr); | |
810 | case 2: | |
811 | return cpu_inw(addr); | |
812 | case 4: | |
813 | return cpu_inl(addr); | |
814 | default: | |
89a80e74 | 815 | hw_error("inp: bad size: %04x %lx", addr, size); |
9ce94e7c AS |
816 | } |
817 | } | |
818 | ||
89a80e74 | 819 | static void do_outp(uint32_t addr, |
9ce94e7c AS |
820 | unsigned long size, uint32_t val) |
821 | { | |
822 | switch (size) { | |
823 | case 1: | |
824 | return cpu_outb(addr, val); | |
825 | case 2: | |
826 | return cpu_outw(addr, val); | |
827 | case 4: | |
828 | return cpu_outl(addr, val); | |
829 | default: | |
89a80e74 | 830 | hw_error("outp: bad size: %04x %lx", addr, size); |
9ce94e7c AS |
831 | } |
832 | } | |
833 | ||
a3864829 IJ |
834 | /* |
835 | * Helper functions which read/write an object from/to physical guest | |
836 | * memory, as part of the implementation of an ioreq. | |
837 | * | |
838 | * Equivalent to | |
839 | * cpu_physical_memory_rw(addr + (req->df ? -1 : +1) * req->size * i, | |
840 | * val, req->size, 0/1) | |
841 | * except without the integer overflow problems. | |
842 | */ | |
843 | static void rw_phys_req_item(hwaddr addr, | |
844 | ioreq_t *req, uint32_t i, void *val, int rw) | |
845 | { | |
846 | /* Do everything unsigned so overflow just results in a truncated result | |
847 | * and accesses to undesired parts of guest memory, which is up | |
848 | * to the guest */ | |
849 | hwaddr offset = (hwaddr)req->size * i; | |
850 | if (req->df) { | |
851 | addr -= offset; | |
852 | } else { | |
853 | addr += offset; | |
854 | } | |
855 | cpu_physical_memory_rw(addr, val, req->size, rw); | |
856 | } | |
857 | ||
858 | static inline void read_phys_req_item(hwaddr addr, | |
859 | ioreq_t *req, uint32_t i, void *val) | |
9ce94e7c | 860 | { |
a3864829 IJ |
861 | rw_phys_req_item(addr, req, i, val, 0); |
862 | } | |
863 | static inline void write_phys_req_item(hwaddr addr, | |
864 | ioreq_t *req, uint32_t i, void *val) | |
865 | { | |
866 | rw_phys_req_item(addr, req, i, val, 1); | |
867 | } | |
9ce94e7c | 868 | |
a3864829 IJ |
869 | |
870 | static void cpu_ioreq_pio(ioreq_t *req) | |
871 | { | |
249e7e0f | 872 | uint32_t i; |
9ce94e7c | 873 | |
eeb6b13a DS |
874 | trace_cpu_ioreq_pio(req, req->dir, req->df, req->data_is_ptr, req->addr, |
875 | req->data, req->count, req->size); | |
876 | ||
b85f9dfd JB |
877 | if (req->size > sizeof(uint32_t)) { |
878 | hw_error("PIO: bad size (%u)", req->size); | |
879 | } | |
880 | ||
9ce94e7c AS |
881 | if (req->dir == IOREQ_READ) { |
882 | if (!req->data_is_ptr) { | |
883 | req->data = do_inp(req->addr, req->size); | |
eeb6b13a DS |
884 | trace_cpu_ioreq_pio_read_reg(req, req->data, req->addr, |
885 | req->size); | |
9ce94e7c AS |
886 | } else { |
887 | uint32_t tmp; | |
888 | ||
889 | for (i = 0; i < req->count; i++) { | |
890 | tmp = do_inp(req->addr, req->size); | |
a3864829 | 891 | write_phys_req_item(req->data, req, i, &tmp); |
9ce94e7c AS |
892 | } |
893 | } | |
894 | } else if (req->dir == IOREQ_WRITE) { | |
895 | if (!req->data_is_ptr) { | |
eeb6b13a DS |
896 | trace_cpu_ioreq_pio_write_reg(req, req->data, req->addr, |
897 | req->size); | |
9ce94e7c AS |
898 | do_outp(req->addr, req->size, req->data); |
899 | } else { | |
900 | for (i = 0; i < req->count; i++) { | |
901 | uint32_t tmp = 0; | |
902 | ||
a3864829 | 903 | read_phys_req_item(req->data, req, i, &tmp); |
9ce94e7c AS |
904 | do_outp(req->addr, req->size, tmp); |
905 | } | |
906 | } | |
907 | } | |
908 | } | |
909 | ||
910 | static void cpu_ioreq_move(ioreq_t *req) | |
911 | { | |
249e7e0f | 912 | uint32_t i; |
9ce94e7c | 913 | |
eeb6b13a DS |
914 | trace_cpu_ioreq_move(req, req->dir, req->df, req->data_is_ptr, req->addr, |
915 | req->data, req->count, req->size); | |
916 | ||
b85f9dfd JB |
917 | if (req->size > sizeof(req->data)) { |
918 | hw_error("MMIO: bad size (%u)", req->size); | |
919 | } | |
920 | ||
9ce94e7c AS |
921 | if (!req->data_is_ptr) { |
922 | if (req->dir == IOREQ_READ) { | |
923 | for (i = 0; i < req->count; i++) { | |
a3864829 | 924 | read_phys_req_item(req->addr, req, i, &req->data); |
9ce94e7c AS |
925 | } |
926 | } else if (req->dir == IOREQ_WRITE) { | |
927 | for (i = 0; i < req->count; i++) { | |
a3864829 | 928 | write_phys_req_item(req->addr, req, i, &req->data); |
9ce94e7c AS |
929 | } |
930 | } | |
931 | } else { | |
2b734340 | 932 | uint64_t tmp; |
9ce94e7c AS |
933 | |
934 | if (req->dir == IOREQ_READ) { | |
935 | for (i = 0; i < req->count; i++) { | |
a3864829 IJ |
936 | read_phys_req_item(req->addr, req, i, &tmp); |
937 | write_phys_req_item(req->data, req, i, &tmp); | |
9ce94e7c AS |
938 | } |
939 | } else if (req->dir == IOREQ_WRITE) { | |
940 | for (i = 0; i < req->count; i++) { | |
a3864829 IJ |
941 | read_phys_req_item(req->data, req, i, &tmp); |
942 | write_phys_req_item(req->addr, req, i, &tmp); | |
9ce94e7c AS |
943 | } |
944 | } | |
945 | } | |
946 | } | |
947 | ||
dfb6578d PD |
948 | static void cpu_ioreq_config(XenIOState *state, ioreq_t *req) |
949 | { | |
950 | uint32_t sbdf = req->addr >> 32; | |
951 | uint32_t reg = req->addr; | |
952 | XenPciDevice *xendev; | |
953 | ||
954 | if (req->size != sizeof(uint8_t) && req->size != sizeof(uint16_t) && | |
955 | req->size != sizeof(uint32_t)) { | |
956 | hw_error("PCI config access: bad size (%u)", req->size); | |
957 | } | |
958 | ||
959 | if (req->count != 1) { | |
960 | hw_error("PCI config access: bad count (%u)", req->count); | |
961 | } | |
962 | ||
963 | QLIST_FOREACH(xendev, &state->dev_list, entry) { | |
964 | if (xendev->sbdf != sbdf) { | |
965 | continue; | |
966 | } | |
967 | ||
968 | if (!req->data_is_ptr) { | |
969 | if (req->dir == IOREQ_READ) { | |
970 | req->data = pci_host_config_read_common( | |
971 | xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE, | |
972 | req->size); | |
973 | trace_cpu_ioreq_config_read(req, xendev->sbdf, reg, | |
974 | req->size, req->data); | |
975 | } else if (req->dir == IOREQ_WRITE) { | |
976 | trace_cpu_ioreq_config_write(req, xendev->sbdf, reg, | |
977 | req->size, req->data); | |
978 | pci_host_config_write_common( | |
979 | xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE, | |
980 | req->data, req->size); | |
981 | } | |
982 | } else { | |
983 | uint32_t tmp; | |
984 | ||
985 | if (req->dir == IOREQ_READ) { | |
986 | tmp = pci_host_config_read_common( | |
987 | xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE, | |
988 | req->size); | |
989 | trace_cpu_ioreq_config_read(req, xendev->sbdf, reg, | |
990 | req->size, tmp); | |
991 | write_phys_req_item(req->data, req, 0, &tmp); | |
992 | } else if (req->dir == IOREQ_WRITE) { | |
993 | read_phys_req_item(req->data, req, 0, &tmp); | |
994 | trace_cpu_ioreq_config_write(req, xendev->sbdf, reg, | |
995 | req->size, tmp); | |
996 | pci_host_config_write_common( | |
997 | xendev->pci_dev, reg, PCI_CONFIG_SPACE_SIZE, | |
998 | tmp, req->size); | |
999 | } | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | ||
37f9e258 DS |
1004 | static void regs_to_cpu(vmware_regs_t *vmport_regs, ioreq_t *req) |
1005 | { | |
1006 | X86CPU *cpu; | |
1007 | CPUX86State *env; | |
1008 | ||
1009 | cpu = X86_CPU(current_cpu); | |
1010 | env = &cpu->env; | |
1011 | env->regs[R_EAX] = req->data; | |
1012 | env->regs[R_EBX] = vmport_regs->ebx; | |
1013 | env->regs[R_ECX] = vmport_regs->ecx; | |
1014 | env->regs[R_EDX] = vmport_regs->edx; | |
1015 | env->regs[R_ESI] = vmport_regs->esi; | |
1016 | env->regs[R_EDI] = vmport_regs->edi; | |
1017 | } | |
1018 | ||
1019 | static void regs_from_cpu(vmware_regs_t *vmport_regs) | |
1020 | { | |
1021 | X86CPU *cpu = X86_CPU(current_cpu); | |
1022 | CPUX86State *env = &cpu->env; | |
1023 | ||
1024 | vmport_regs->ebx = env->regs[R_EBX]; | |
1025 | vmport_regs->ecx = env->regs[R_ECX]; | |
1026 | vmport_regs->edx = env->regs[R_EDX]; | |
1027 | vmport_regs->esi = env->regs[R_ESI]; | |
1028 | vmport_regs->edi = env->regs[R_EDI]; | |
1029 | } | |
1030 | ||
1031 | static void handle_vmport_ioreq(XenIOState *state, ioreq_t *req) | |
1032 | { | |
1033 | vmware_regs_t *vmport_regs; | |
1034 | ||
1035 | assert(state->shared_vmport_page); | |
1036 | vmport_regs = | |
1037 | &state->shared_vmport_page->vcpu_vmport_regs[state->send_vcpu]; | |
1038 | QEMU_BUILD_BUG_ON(sizeof(*req) < sizeof(*vmport_regs)); | |
1039 | ||
1040 | current_cpu = state->cpu_by_vcpu_id[state->send_vcpu]; | |
1041 | regs_to_cpu(vmport_regs, req); | |
1042 | cpu_ioreq_pio(req); | |
1043 | regs_from_cpu(vmport_regs); | |
1044 | current_cpu = NULL; | |
1045 | } | |
1046 | ||
1047 | static void handle_ioreq(XenIOState *state, ioreq_t *req) | |
9ce94e7c | 1048 | { |
eeb6b13a DS |
1049 | trace_handle_ioreq(req, req->type, req->dir, req->df, req->data_is_ptr, |
1050 | req->addr, req->data, req->count, req->size); | |
1051 | ||
9ce94e7c AS |
1052 | if (!req->data_is_ptr && (req->dir == IOREQ_WRITE) && |
1053 | (req->size < sizeof (target_ulong))) { | |
1054 | req->data &= ((target_ulong) 1 << (8 * req->size)) - 1; | |
1055 | } | |
1056 | ||
eeb6b13a DS |
1057 | if (req->dir == IOREQ_WRITE) |
1058 | trace_handle_ioreq_write(req, req->type, req->df, req->data_is_ptr, | |
1059 | req->addr, req->data, req->count, req->size); | |
1060 | ||
9ce94e7c AS |
1061 | switch (req->type) { |
1062 | case IOREQ_TYPE_PIO: | |
1063 | cpu_ioreq_pio(req); | |
1064 | break; | |
1065 | case IOREQ_TYPE_COPY: | |
1066 | cpu_ioreq_move(req); | |
1067 | break; | |
37f9e258 DS |
1068 | case IOREQ_TYPE_VMWARE_PORT: |
1069 | handle_vmport_ioreq(state, req); | |
1070 | break; | |
9ce94e7c AS |
1071 | case IOREQ_TYPE_TIMEOFFSET: |
1072 | break; | |
1073 | case IOREQ_TYPE_INVALIDATE: | |
e41d7c69 | 1074 | xen_invalidate_map_cache(); |
9ce94e7c | 1075 | break; |
dfb6578d PD |
1076 | case IOREQ_TYPE_PCI_CONFIG: |
1077 | cpu_ioreq_config(state, req); | |
3996e85c | 1078 | break; |
9ce94e7c AS |
1079 | default: |
1080 | hw_error("Invalid ioreq type 0x%x\n", req->type); | |
1081 | } | |
eeb6b13a DS |
1082 | if (req->dir == IOREQ_READ) { |
1083 | trace_handle_ioreq_read(req, req->type, req->df, req->data_is_ptr, | |
1084 | req->addr, req->data, req->count, req->size); | |
1085 | } | |
9ce94e7c AS |
1086 | } |
1087 | ||
fda1f768 | 1088 | static int handle_buffered_iopage(XenIOState *state) |
9ce94e7c | 1089 | { |
d8b441a3 | 1090 | buffered_iopage_t *buf_page = state->buffered_io_page; |
9ce94e7c AS |
1091 | buf_ioreq_t *buf_req = NULL; |
1092 | ioreq_t req; | |
1093 | int qw; | |
1094 | ||
d8b441a3 | 1095 | if (!buf_page) { |
fda1f768 | 1096 | return 0; |
9ce94e7c AS |
1097 | } |
1098 | ||
fda1f768 | 1099 | memset(&req, 0x00, sizeof(req)); |
f37f29d3 JB |
1100 | req.state = STATE_IOREQ_READY; |
1101 | req.count = 1; | |
e514379d | 1102 | req.dir = IOREQ_WRITE; |
fda1f768 | 1103 | |
d8b441a3 JB |
1104 | for (;;) { |
1105 | uint32_t rdptr = buf_page->read_pointer, wrptr; | |
1106 | ||
1107 | xen_rmb(); | |
1108 | wrptr = buf_page->write_pointer; | |
1109 | xen_rmb(); | |
1110 | if (rdptr != buf_page->read_pointer) { | |
1111 | continue; | |
1112 | } | |
1113 | if (rdptr == wrptr) { | |
1114 | break; | |
1115 | } | |
1116 | buf_req = &buf_page->buf_ioreq[rdptr % IOREQ_BUFFER_SLOT_NUM]; | |
f37f29d3 | 1117 | req.size = 1U << buf_req->size; |
9ce94e7c AS |
1118 | req.addr = buf_req->addr; |
1119 | req.data = buf_req->data; | |
9ce94e7c | 1120 | req.type = buf_req->type; |
b85f9dfd | 1121 | xen_rmb(); |
9ce94e7c AS |
1122 | qw = (req.size == 8); |
1123 | if (qw) { | |
ff3b8b8f JB |
1124 | if (rdptr + 1 == wrptr) { |
1125 | hw_error("Incomplete quad word buffered ioreq"); | |
1126 | } | |
d8b441a3 JB |
1127 | buf_req = &buf_page->buf_ioreq[(rdptr + 1) % |
1128 | IOREQ_BUFFER_SLOT_NUM]; | |
9ce94e7c | 1129 | req.data |= ((uint64_t)buf_req->data) << 32; |
b85f9dfd | 1130 | xen_rmb(); |
9ce94e7c AS |
1131 | } |
1132 | ||
37f9e258 | 1133 | handle_ioreq(state, &req); |
9ce94e7c | 1134 | |
f37f29d3 | 1135 | /* Only req.data may get updated by handle_ioreq(), albeit even that |
e514379d JB |
1136 | * should not happen as such data would never make it to the guest (we |
1137 | * can only usefully see writes here after all). | |
f37f29d3 JB |
1138 | */ |
1139 | assert(req.state == STATE_IOREQ_READY); | |
1140 | assert(req.count == 1); | |
e514379d | 1141 | assert(req.dir == IOREQ_WRITE); |
f37f29d3 JB |
1142 | assert(!req.data_is_ptr); |
1143 | ||
d73415a3 | 1144 | qatomic_add(&buf_page->read_pointer, qw + 1); |
9ce94e7c | 1145 | } |
fda1f768 SS |
1146 | |
1147 | return req.count; | |
9ce94e7c AS |
1148 | } |
1149 | ||
1150 | static void handle_buffered_io(void *opaque) | |
1151 | { | |
1152 | XenIOState *state = opaque; | |
1153 | ||
fda1f768 | 1154 | if (handle_buffered_iopage(state)) { |
bc72ad67 AB |
1155 | timer_mod(state->buffered_io_timer, |
1156 | BUFFER_IO_MAX_DELAY + qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); | |
fda1f768 | 1157 | } else { |
bc72ad67 | 1158 | timer_del(state->buffered_io_timer); |
a2db2a1e | 1159 | xenevtchn_unmask(state->xce_handle, state->bufioreq_local_port); |
fda1f768 | 1160 | } |
9ce94e7c AS |
1161 | } |
1162 | ||
1163 | static void cpu_handle_ioreq(void *opaque) | |
1164 | { | |
1165 | XenIOState *state = opaque; | |
1166 | ioreq_t *req = cpu_get_ioreq(state); | |
1167 | ||
1168 | handle_buffered_iopage(state); | |
1169 | if (req) { | |
b85f9dfd JB |
1170 | ioreq_t copy = *req; |
1171 | ||
1172 | xen_rmb(); | |
1173 | handle_ioreq(state, ©); | |
1174 | req->data = copy.data; | |
9ce94e7c AS |
1175 | |
1176 | if (req->state != STATE_IOREQ_INPROCESS) { | |
1177 | fprintf(stderr, "Badness in I/O request ... not in service?!: " | |
1178 | "%x, ptr: %x, port: %"PRIx64", " | |
47d3df23 | 1179 | "data: %"PRIx64", count: %u, size: %u, type: %u\n", |
9ce94e7c | 1180 | req->state, req->data_is_ptr, req->addr, |
37f9e258 | 1181 | req->data, req->count, req->size, req->type); |
180640ea | 1182 | destroy_hvm_domain(false); |
9ce94e7c AS |
1183 | return; |
1184 | } | |
1185 | ||
1186 | xen_wmb(); /* Update ioreq contents /then/ update state. */ | |
1187 | ||
1188 | /* | |
1189 | * We do this before we send the response so that the tools | |
1190 | * have the opportunity to pick up on the reset before the | |
1191 | * guest resumes and does a hlt with interrupts disabled which | |
1192 | * causes Xen to powerdown the domain. | |
1193 | */ | |
1354869c | 1194 | if (runstate_is_running()) { |
aedbe192 EB |
1195 | ShutdownCause request; |
1196 | ||
9ce94e7c | 1197 | if (qemu_shutdown_requested_get()) { |
180640ea | 1198 | destroy_hvm_domain(false); |
9ce94e7c | 1199 | } |
aedbe192 EB |
1200 | request = qemu_reset_requested_get(); |
1201 | if (request) { | |
1202 | qemu_system_reset(request); | |
180640ea | 1203 | destroy_hvm_domain(true); |
9ce94e7c AS |
1204 | } |
1205 | } | |
1206 | ||
1207 | req->state = STATE_IORESP_READY; | |
a2db2a1e IC |
1208 | xenevtchn_notify(state->xce_handle, |
1209 | state->ioreq_local_port[state->send_vcpu]); | |
9ce94e7c AS |
1210 | } |
1211 | } | |
1212 | ||
1213 | static void xen_main_loop_prepare(XenIOState *state) | |
1214 | { | |
1215 | int evtchn_fd = -1; | |
1216 | ||
a2db2a1e IC |
1217 | if (state->xce_handle != NULL) { |
1218 | evtchn_fd = xenevtchn_fd(state->xce_handle); | |
9ce94e7c AS |
1219 | } |
1220 | ||
bc72ad67 | 1221 | state->buffered_io_timer = timer_new_ms(QEMU_CLOCK_REALTIME, handle_buffered_io, |
9ce94e7c | 1222 | state); |
9ce94e7c AS |
1223 | |
1224 | if (evtchn_fd != -1) { | |
37f9e258 DS |
1225 | CPUState *cpu_state; |
1226 | ||
1227 | DPRINTF("%s: Init cpu_by_vcpu_id\n", __func__); | |
1228 | CPU_FOREACH(cpu_state) { | |
1229 | DPRINTF("%s: cpu_by_vcpu_id[%d]=%p\n", | |
1230 | __func__, cpu_state->cpu_index, cpu_state); | |
1231 | state->cpu_by_vcpu_id[cpu_state->cpu_index] = cpu_state; | |
1232 | } | |
9ce94e7c AS |
1233 | qemu_set_fd_handler(evtchn_fd, cpu_handle_ioreq, NULL, state); |
1234 | } | |
1235 | } | |
1236 | ||
1237 | ||
1dfb4dd9 LC |
1238 | static void xen_hvm_change_state_handler(void *opaque, int running, |
1239 | RunState rstate) | |
9ce94e7c | 1240 | { |
3996e85c PD |
1241 | XenIOState *state = opaque; |
1242 | ||
9ce94e7c | 1243 | if (running) { |
3996e85c | 1244 | xen_main_loop_prepare(state); |
9ce94e7c | 1245 | } |
3996e85c | 1246 | |
260cabed | 1247 | xen_set_ioreq_server_state(xen_domid, |
3996e85c PD |
1248 | state->ioservid, |
1249 | (rstate == RUN_STATE_RUNNING)); | |
9ce94e7c AS |
1250 | } |
1251 | ||
9e8dd451 | 1252 | static void xen_exit_notifier(Notifier *n, void *data) |
9ce94e7c AS |
1253 | { |
1254 | XenIOState *state = container_of(n, XenIOState, exit); | |
1255 | ||
ba7fdd64 ID |
1256 | xen_destroy_ioreq_server(xen_domid, state->ioservid); |
1257 | ||
a2db2a1e | 1258 | xenevtchn_close(state->xce_handle); |
29321335 | 1259 | xs_daemon_close(state->xenstore); |
9ce94e7c AS |
1260 | } |
1261 | ||
331b5189 | 1262 | #ifdef XEN_COMPAT_PHYSMAP |
d1814e08 SS |
1263 | static void xen_read_physmap(XenIOState *state) |
1264 | { | |
1265 | XenPhysmap *physmap = NULL; | |
1266 | unsigned int len, num, i; | |
1267 | char path[80], *value = NULL; | |
1268 | char **entries = NULL; | |
1269 | ||
1270 | snprintf(path, sizeof(path), | |
1271 | "/local/domain/0/device-model/%d/physmap", xen_domid); | |
1272 | entries = xs_directory(state->xenstore, 0, path, &num); | |
1273 | if (entries == NULL) | |
1274 | return; | |
1275 | ||
1276 | for (i = 0; i < num; i++) { | |
1277 | physmap = g_malloc(sizeof (XenPhysmap)); | |
1278 | physmap->phys_offset = strtoull(entries[i], NULL, 16); | |
1279 | snprintf(path, sizeof(path), | |
1280 | "/local/domain/0/device-model/%d/physmap/%s/start_addr", | |
1281 | xen_domid, entries[i]); | |
1282 | value = xs_read(state->xenstore, 0, path, &len); | |
1283 | if (value == NULL) { | |
c5633d99 | 1284 | g_free(physmap); |
d1814e08 SS |
1285 | continue; |
1286 | } | |
1287 | physmap->start_addr = strtoull(value, NULL, 16); | |
1288 | free(value); | |
1289 | ||
1290 | snprintf(path, sizeof(path), | |
1291 | "/local/domain/0/device-model/%d/physmap/%s/size", | |
1292 | xen_domid, entries[i]); | |
1293 | value = xs_read(state->xenstore, 0, path, &len); | |
1294 | if (value == NULL) { | |
c5633d99 | 1295 | g_free(physmap); |
d1814e08 SS |
1296 | continue; |
1297 | } | |
1298 | physmap->size = strtoull(value, NULL, 16); | |
1299 | free(value); | |
1300 | ||
1301 | snprintf(path, sizeof(path), | |
1302 | "/local/domain/0/device-model/%d/physmap/%s/name", | |
1303 | xen_domid, entries[i]); | |
1304 | physmap->name = xs_read(state->xenstore, 0, path, &len); | |
1305 | ||
04a8f72e | 1306 | QLIST_INSERT_HEAD(&xen_physmap, physmap, list); |
d1814e08 SS |
1307 | } |
1308 | free(entries); | |
d1814e08 | 1309 | } |
331b5189 ID |
1310 | #else |
1311 | static void xen_read_physmap(XenIOState *state) | |
1312 | { | |
1313 | } | |
1314 | #endif | |
d1814e08 | 1315 | |
11addd0a LJ |
1316 | static void xen_wakeup_notifier(Notifier *notifier, void *data) |
1317 | { | |
1318 | xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 0); | |
1319 | } | |
1320 | ||
71cec1ed | 1321 | static int xen_map_ioreq_server(XenIOState *state) |
29d3ccde | 1322 | { |
d3c49ebb PD |
1323 | void *addr = NULL; |
1324 | xenforeignmemory_resource_handle *fres; | |
3996e85c PD |
1325 | xen_pfn_t ioreq_pfn; |
1326 | xen_pfn_t bufioreq_pfn; | |
1327 | evtchn_port_t bufioreq_evtchn; | |
71cec1ed PD |
1328 | int rc; |
1329 | ||
d3c49ebb PD |
1330 | /* |
1331 | * Attempt to map using the resource API and fall back to normal | |
1332 | * foreign mapping if this is not supported. | |
1333 | */ | |
1334 | QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_bufioreq != 0); | |
1335 | QEMU_BUILD_BUG_ON(XENMEM_resource_ioreq_server_frame_ioreq(0) != 1); | |
1336 | fres = xenforeignmemory_map_resource(xen_fmem, xen_domid, | |
1337 | XENMEM_resource_ioreq_server, | |
1338 | state->ioservid, 0, 2, | |
1339 | &addr, | |
1340 | PROT_READ | PROT_WRITE, 0); | |
1341 | if (fres != NULL) { | |
1342 | trace_xen_map_resource_ioreq(state->ioservid, addr); | |
1343 | state->buffered_io_page = addr; | |
1344 | state->shared_page = addr + TARGET_PAGE_SIZE; | |
1345 | } else if (errno != EOPNOTSUPP) { | |
1346 | error_report("failed to map ioreq server resources: error %d handle=%p", | |
1347 | errno, xen_xc); | |
1348 | return -1; | |
1349 | } | |
1350 | ||
71cec1ed | 1351 | rc = xen_get_ioreq_server_info(xen_domid, state->ioservid, |
d3c49ebb PD |
1352 | (state->shared_page == NULL) ? |
1353 | &ioreq_pfn : NULL, | |
1354 | (state->buffered_io_page == NULL) ? | |
1355 | &bufioreq_pfn : NULL, | |
71cec1ed PD |
1356 | &bufioreq_evtchn); |
1357 | if (rc < 0) { | |
1358 | error_report("failed to get ioreq server info: error %d handle=%p", | |
1359 | errno, xen_xc); | |
1360 | return rc; | |
1361 | } | |
1362 | ||
71cec1ed | 1363 | if (state->shared_page == NULL) { |
d3c49ebb PD |
1364 | DPRINTF("shared page at pfn %lx\n", ioreq_pfn); |
1365 | ||
1366 | state->shared_page = xenforeignmemory_map(xen_fmem, xen_domid, | |
1367 | PROT_READ | PROT_WRITE, | |
1368 | 1, &ioreq_pfn, NULL); | |
1369 | if (state->shared_page == NULL) { | |
1370 | error_report("map shared IO page returned error %d handle=%p", | |
1371 | errno, xen_xc); | |
1372 | } | |
71cec1ed PD |
1373 | } |
1374 | ||
71cec1ed | 1375 | if (state->buffered_io_page == NULL) { |
d3c49ebb PD |
1376 | DPRINTF("buffered io page at pfn %lx\n", bufioreq_pfn); |
1377 | ||
1378 | state->buffered_io_page = xenforeignmemory_map(xen_fmem, xen_domid, | |
1379 | PROT_READ | PROT_WRITE, | |
1380 | 1, &bufioreq_pfn, | |
1381 | NULL); | |
1382 | if (state->buffered_io_page == NULL) { | |
1383 | error_report("map buffered IO page returned error %d", errno); | |
1384 | return -1; | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | if (state->shared_page == NULL || state->buffered_io_page == NULL) { | |
71cec1ed PD |
1389 | return -1; |
1390 | } | |
1391 | ||
d3c49ebb PD |
1392 | DPRINTF("buffered io evtchn is %x\n", bufioreq_evtchn); |
1393 | ||
71cec1ed PD |
1394 | state->bufioreq_remote_port = bufioreq_evtchn; |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
5650ac00 | 1399 | void xen_hvm_init_pc(PCMachineState *pcms, MemoryRegion **ram_memory) |
71cec1ed | 1400 | { |
0e11fc69 LX |
1401 | MachineState *ms = MACHINE(pcms); |
1402 | unsigned int max_cpus = ms->smp.max_cpus; | |
71cec1ed PD |
1403 | int i, rc; |
1404 | xen_pfn_t ioreq_pfn; | |
9ce94e7c AS |
1405 | XenIOState *state; |
1406 | ||
7267c094 | 1407 | state = g_malloc0(sizeof (XenIOState)); |
9ce94e7c | 1408 | |
a2db2a1e IC |
1409 | state->xce_handle = xenevtchn_open(NULL, 0); |
1410 | if (state->xce_handle == NULL) { | |
9ce94e7c | 1411 | perror("xen: event channel open"); |
dced4d2f | 1412 | goto err; |
9ce94e7c AS |
1413 | } |
1414 | ||
29321335 AP |
1415 | state->xenstore = xs_daemon_open(); |
1416 | if (state->xenstore == NULL) { | |
1417 | perror("xen: xenstore open"); | |
dced4d2f | 1418 | goto err; |
29321335 AP |
1419 | } |
1420 | ||
260cabed | 1421 | xen_create_ioreq_server(xen_domid, &state->ioservid); |
3996e85c | 1422 | |
9ce94e7c AS |
1423 | state->exit.notify = xen_exit_notifier; |
1424 | qemu_add_exit_notifier(&state->exit); | |
1425 | ||
da98c8eb GH |
1426 | state->suspend.notify = xen_suspend_notifier; |
1427 | qemu_register_suspend_notifier(&state->suspend); | |
1428 | ||
11addd0a LJ |
1429 | state->wakeup.notify = xen_wakeup_notifier; |
1430 | qemu_register_wakeup_notifier(&state->wakeup); | |
1431 | ||
46ea94ca DHB |
1432 | /* |
1433 | * Register wake-up support in QMP query-current-machine API | |
1434 | */ | |
1435 | qemu_register_wakeup_support(); | |
1436 | ||
71cec1ed | 1437 | rc = xen_map_ioreq_server(state); |
3996e85c | 1438 | if (rc < 0) { |
dced4d2f | 1439 | goto err; |
9ce94e7c AS |
1440 | } |
1441 | ||
37f9e258 DS |
1442 | rc = xen_get_vmport_regs_pfn(xen_xc, xen_domid, &ioreq_pfn); |
1443 | if (!rc) { | |
1444 | DPRINTF("shared vmport page at pfn %lx\n", ioreq_pfn); | |
1445 | state->shared_vmport_page = | |
e0cb42ae IC |
1446 | xenforeignmemory_map(xen_fmem, xen_domid, PROT_READ|PROT_WRITE, |
1447 | 1, &ioreq_pfn, NULL); | |
37f9e258 | 1448 | if (state->shared_vmport_page == NULL) { |
81daba58 IC |
1449 | error_report("map shared vmport IO page returned error %d handle=%p", |
1450 | errno, xen_xc); | |
dced4d2f | 1451 | goto err; |
37f9e258 DS |
1452 | } |
1453 | } else if (rc != -ENOSYS) { | |
dced4d2f MA |
1454 | error_report("get vmport regs pfn returned error %d, rc=%d", |
1455 | errno, rc); | |
1456 | goto err; | |
37f9e258 DS |
1457 | } |
1458 | ||
37f9e258 DS |
1459 | /* Note: cpus is empty at this point in init */ |
1460 | state->cpu_by_vcpu_id = g_malloc0(max_cpus * sizeof(CPUState *)); | |
1461 | ||
260cabed | 1462 | rc = xen_set_ioreq_server_state(xen_domid, state->ioservid, true); |
3996e85c | 1463 | if (rc < 0) { |
81daba58 | 1464 | error_report("failed to enable ioreq server info: error %d handle=%p", |
dced4d2f MA |
1465 | errno, xen_xc); |
1466 | goto err; | |
3996e85c PD |
1467 | } |
1468 | ||
1cd25a88 | 1469 | state->ioreq_local_port = g_malloc0(max_cpus * sizeof (evtchn_port_t)); |
9ce94e7c AS |
1470 | |
1471 | /* FIXME: how about if we overflow the page here? */ | |
1cd25a88 | 1472 | for (i = 0; i < max_cpus; i++) { |
a2db2a1e | 1473 | rc = xenevtchn_bind_interdomain(state->xce_handle, xen_domid, |
9ce94e7c AS |
1474 | xen_vcpu_eport(state->shared_page, i)); |
1475 | if (rc == -1) { | |
dced4d2f MA |
1476 | error_report("shared evtchn %d bind error %d", i, errno); |
1477 | goto err; | |
9ce94e7c AS |
1478 | } |
1479 | state->ioreq_local_port[i] = rc; | |
1480 | } | |
1481 | ||
a2db2a1e | 1482 | rc = xenevtchn_bind_interdomain(state->xce_handle, xen_domid, |
71cec1ed | 1483 | state->bufioreq_remote_port); |
fda1f768 | 1484 | if (rc == -1) { |
dced4d2f MA |
1485 | error_report("buffered evtchn bind error %d", errno); |
1486 | goto err; | |
fda1f768 SS |
1487 | } |
1488 | state->bufioreq_local_port = rc; | |
1489 | ||
432d268c | 1490 | /* Init RAM management */ |
331b5189 | 1491 | #ifdef XEN_COMPAT_PHYSMAP |
cd1ba7de | 1492 | xen_map_cache_init(xen_phys_offset_to_gaddr, state); |
331b5189 ID |
1493 | #else |
1494 | xen_map_cache_init(NULL, state); | |
1495 | #endif | |
86378b29 | 1496 | xen_ram_init(pcms, ms->ram_size, ram_memory); |
432d268c | 1497 | |
fb4bb2b5 | 1498 | qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state); |
9ce94e7c | 1499 | |
20581d20 | 1500 | state->memory_listener = xen_memory_listener; |
f6790af6 | 1501 | memory_listener_register(&state->memory_listener, &address_space_memory); |
b4dd7802 AP |
1502 | state->log_for_dirtybit = NULL; |
1503 | ||
3996e85c PD |
1504 | state->io_listener = xen_io_listener; |
1505 | memory_listener_register(&state->io_listener, &address_space_io); | |
1506 | ||
1507 | state->device_listener = xen_device_listener; | |
dfb6578d | 1508 | QLIST_INIT(&state->dev_list); |
3996e85c PD |
1509 | device_listener_register(&state->device_listener); |
1510 | ||
108f7bba PD |
1511 | xen_bus_init(); |
1512 | ||
ad35a7da SS |
1513 | /* Initialize backend core & drivers */ |
1514 | if (xen_be_init() != 0) { | |
dced4d2f MA |
1515 | error_report("xen backend core setup failed"); |
1516 | goto err; | |
ad35a7da | 1517 | } |
0e39bb02 | 1518 | xen_be_register_common(); |
04a8f72e ID |
1519 | |
1520 | QLIST_INIT(&xen_physmap); | |
d1814e08 | 1521 | xen_read_physmap(state); |
804ba7c1 AP |
1522 | |
1523 | /* Disable ACPI build because Xen handles it */ | |
1524 | pcms->acpi_build_enabled = false; | |
1525 | ||
dced4d2f | 1526 | return; |
ad35a7da | 1527 | |
dced4d2f MA |
1528 | err: |
1529 | error_report("xen hardware virtual machine initialisation failed"); | |
1530 | exit(1); | |
29d3ccde | 1531 | } |
9ce94e7c | 1532 | |
180640ea | 1533 | void destroy_hvm_domain(bool reboot) |
9ce94e7c | 1534 | { |
81daba58 | 1535 | xc_interface *xc_handle; |
9ce94e7c | 1536 | int sts; |
6b47c2aa | 1537 | int rc; |
9ce94e7c | 1538 | |
74aae6bf IJ |
1539 | unsigned int reason = reboot ? SHUTDOWN_reboot : SHUTDOWN_poweroff; |
1540 | ||
6b47c2aa IJ |
1541 | if (xen_dmod) { |
1542 | rc = xendevicemodel_shutdown(xen_dmod, xen_domid, reason); | |
1543 | if (!rc) { | |
1544 | return; | |
1545 | } | |
1546 | if (errno != ENOTTY /* old Xen */) { | |
1547 | perror("xendevicemodel_shutdown failed"); | |
1548 | } | |
1549 | /* well, try the old thing then */ | |
1550 | } | |
1551 | ||
81daba58 IC |
1552 | xc_handle = xc_interface_open(0, 0, 0); |
1553 | if (xc_handle == NULL) { | |
9ce94e7c AS |
1554 | fprintf(stderr, "Cannot acquire xenctrl handle\n"); |
1555 | } else { | |
74aae6bf | 1556 | sts = xc_domain_shutdown(xc_handle, xen_domid, reason); |
9ce94e7c | 1557 | if (sts != 0) { |
180640ea JB |
1558 | fprintf(stderr, "xc_domain_shutdown failed to issue %s, " |
1559 | "sts %d, %s\n", reboot ? "reboot" : "poweroff", | |
1560 | sts, strerror(errno)); | |
9ce94e7c | 1561 | } else { |
180640ea JB |
1562 | fprintf(stderr, "Issued domain %d %s\n", xen_domid, |
1563 | reboot ? "reboot" : "poweroff"); | |
9ce94e7c AS |
1564 | } |
1565 | xc_interface_close(xc_handle); | |
1566 | } | |
1567 | } | |
c65adf9b AK |
1568 | |
1569 | void xen_register_framebuffer(MemoryRegion *mr) | |
1570 | { | |
1571 | framebuffer = mr; | |
1572 | } | |
eaab4d60 AK |
1573 | |
1574 | void xen_shutdown_fatal_error(const char *fmt, ...) | |
1575 | { | |
1576 | va_list ap; | |
1577 | ||
1578 | va_start(ap, fmt); | |
1579 | vfprintf(stderr, fmt, ap); | |
1580 | va_end(ap); | |
1581 | fprintf(stderr, "Will destroy the domain.\n"); | |
1582 | /* destroy the domain */ | |
cf83f140 | 1583 | qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_ERROR); |
eaab4d60 | 1584 | } |
910b38e4 | 1585 | |
5100afb5 | 1586 | void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length) |
910b38e4 AP |
1587 | { |
1588 | if (unlikely(xen_in_migration)) { | |
1589 | int rc; | |
1590 | ram_addr_t start_pfn, nb_pages; | |
1591 | ||
04a8f72e ID |
1592 | start = xen_phys_offset_to_gaddr(start, length); |
1593 | ||
910b38e4 AP |
1594 | if (length == 0) { |
1595 | length = TARGET_PAGE_SIZE; | |
1596 | } | |
1597 | start_pfn = start >> TARGET_PAGE_BITS; | |
1598 | nb_pages = ((start + length + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS) | |
1599 | - start_pfn; | |
8f25e754 | 1600 | rc = xen_modified_memory(xen_domid, start_pfn, nb_pages); |
910b38e4 AP |
1601 | if (rc) { |
1602 | fprintf(stderr, | |
1603 | "%s failed for "RAM_ADDR_FMT" ("RAM_ADDR_FMT"): %i, %s\n", | |
7cdcca72 | 1604 | __func__, start, nb_pages, errno, strerror(errno)); |
910b38e4 AP |
1605 | } |
1606 | } | |
1607 | } | |
04b0de0e WL |
1608 | |
1609 | void qmp_xen_set_global_dirty_log(bool enable, Error **errp) | |
1610 | { | |
1611 | if (enable) { | |
1612 | memory_global_dirty_log_start(); | |
1613 | } else { | |
1614 | memory_global_dirty_log_stop(); | |
1615 | } | |
1616 | } |