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Commit | Line | Data |
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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" |
9ce94e7c | 12 | |
33c11879 | 13 | #include "cpu.h" |
a2cb15b0 | 14 | #include "hw/pci/pci.h" |
0d09e41a | 15 | #include "hw/i386/pc.h" |
428c3ece | 16 | #include "hw/i386/apic-msidef.h" |
0d09e41a PB |
17 | #include "hw/xen/xen_common.h" |
18 | #include "hw/xen/xen_backend.h" | |
e688df6b | 19 | #include "qapi/error.h" |
112ed241 | 20 | #include "qapi/qapi-commands-misc.h" |
dced4d2f | 21 | #include "qemu/error-report.h" |
1de7afc9 | 22 | #include "qemu/range.h" |
9c17d615 | 23 | #include "sysemu/xen-mapcache.h" |
93d43e7e | 24 | #include "trace.h" |
022c62cb | 25 | #include "exec/address-spaces.h" |
432d268c | 26 | |
9ce94e7c AS |
27 | #include <xen/hvm/ioreq.h> |
28 | #include <xen/hvm/params.h> | |
8a369e20 | 29 | #include <xen/hvm/e820.h> |
9ce94e7c | 30 | |
04b0de0e | 31 | //#define DEBUG_XEN_HVM |
9ce94e7c | 32 | |
04b0de0e | 33 | #ifdef DEBUG_XEN_HVM |
9ce94e7c AS |
34 | #define DPRINTF(fmt, ...) \ |
35 | do { fprintf(stderr, "xen: " fmt, ## __VA_ARGS__); } while (0) | |
36 | #else | |
37 | #define DPRINTF(fmt, ...) \ | |
38 | do { } while (0) | |
39 | #endif | |
40 | ||
ce76b8a8 | 41 | static MemoryRegion ram_memory, ram_640k, ram_lo, ram_hi; |
c65adf9b | 42 | static MemoryRegion *framebuffer; |
39f42439 | 43 | static bool xen_in_migration; |
ce76b8a8 | 44 | |
9ce94e7c | 45 | /* Compatibility with older version */ |
37f9e258 DS |
46 | |
47 | /* This allows QEMU to build on a system that has Xen 4.5 or earlier | |
48 | * installed. This here (not in hw/xen/xen_common.h) because xen/hvm/ioreq.h | |
49 | * needs to be included before this block and hw/xen/xen_common.h needs to | |
50 | * be included before xen/hvm/ioreq.h | |
51 | */ | |
52 | #ifndef IOREQ_TYPE_VMWARE_PORT | |
53 | #define IOREQ_TYPE_VMWARE_PORT 3 | |
54 | struct vmware_regs { | |
55 | uint32_t esi; | |
56 | uint32_t edi; | |
57 | uint32_t ebx; | |
58 | uint32_t ecx; | |
59 | uint32_t edx; | |
60 | }; | |
61 | typedef struct vmware_regs vmware_regs_t; | |
62 | ||
63 | struct shared_vmport_iopage { | |
64 | struct vmware_regs vcpu_vmport_regs[1]; | |
65 | }; | |
66 | typedef struct shared_vmport_iopage shared_vmport_iopage_t; | |
67 | #endif | |
68 | ||
9ce94e7c AS |
69 | static inline uint32_t xen_vcpu_eport(shared_iopage_t *shared_page, int i) |
70 | { | |
71 | return shared_page->vcpu_ioreq[i].vp_eport; | |
72 | } | |
73 | static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu) | |
74 | { | |
75 | return &shared_page->vcpu_ioreq[vcpu]; | |
76 | } | |
9ce94e7c AS |
77 | |
78 | #define BUFFER_IO_MAX_DELAY 100 | |
79 | ||
b4dd7802 | 80 | typedef struct XenPhysmap { |
a8170e5e | 81 | hwaddr start_addr; |
b4dd7802 | 82 | ram_addr_t size; |
dc6c4fe8 | 83 | const char *name; |
a8170e5e | 84 | hwaddr phys_offset; |
b4dd7802 AP |
85 | |
86 | QLIST_ENTRY(XenPhysmap) list; | |
87 | } XenPhysmap; | |
88 | ||
04a8f72e ID |
89 | static QLIST_HEAD(, XenPhysmap) xen_physmap; |
90 | ||
9ce94e7c | 91 | typedef struct XenIOState { |
3996e85c | 92 | ioservid_t ioservid; |
9ce94e7c | 93 | shared_iopage_t *shared_page; |
37f9e258 | 94 | shared_vmport_iopage_t *shared_vmport_page; |
9ce94e7c AS |
95 | buffered_iopage_t *buffered_io_page; |
96 | QEMUTimer *buffered_io_timer; | |
37f9e258 | 97 | CPUState **cpu_by_vcpu_id; |
9ce94e7c AS |
98 | /* the evtchn port for polling the notification, */ |
99 | evtchn_port_t *ioreq_local_port; | |
71cec1ed PD |
100 | /* evtchn remote and local ports for buffered io */ |
101 | evtchn_port_t bufioreq_remote_port; | |
fda1f768 | 102 | evtchn_port_t bufioreq_local_port; |
9ce94e7c | 103 | /* the evtchn fd for polling */ |
a2db2a1e | 104 | xenevtchn_handle *xce_handle; |
9ce94e7c AS |
105 | /* which vcpu we are serving */ |
106 | int send_vcpu; | |
107 | ||
29321335 | 108 | struct xs_handle *xenstore; |
20581d20 | 109 | MemoryListener memory_listener; |
3996e85c PD |
110 | MemoryListener io_listener; |
111 | DeviceListener device_listener; | |
a8170e5e | 112 | hwaddr free_phys_offset; |
b4dd7802 | 113 | const XenPhysmap *log_for_dirtybit; |
29321335 | 114 | |
9ce94e7c | 115 | Notifier exit; |
da98c8eb | 116 | Notifier suspend; |
11addd0a | 117 | Notifier wakeup; |
9ce94e7c AS |
118 | } XenIOState; |
119 | ||
41445300 AP |
120 | /* Xen specific function for piix pci */ |
121 | ||
122 | int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num) | |
123 | { | |
124 | return irq_num + ((pci_dev->devfn >> 3) << 2); | |
125 | } | |
126 | ||
127 | void xen_piix3_set_irq(void *opaque, int irq_num, int level) | |
128 | { | |
8f25e754 PD |
129 | xen_set_pci_intx_level(xen_domid, 0, 0, irq_num >> 2, |
130 | irq_num & 3, level); | |
41445300 AP |
131 | } |
132 | ||
133 | void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len) | |
134 | { | |
135 | int i; | |
136 | ||
137 | /* Scan for updates to PCI link routes (0x60-0x63). */ | |
138 | for (i = 0; i < len; i++) { | |
139 | uint8_t v = (val >> (8 * i)) & 0xff; | |
140 | if (v & 0x80) { | |
141 | v = 0; | |
142 | } | |
143 | v &= 0xf; | |
144 | if (((address + i) >= 0x60) && ((address + i) <= 0x63)) { | |
8f25e754 | 145 | xen_set_pci_link_route(xen_domid, address + i - 0x60, v); |
41445300 AP |
146 | } |
147 | } | |
148 | } | |
149 | ||
428c3ece SS |
150 | int xen_is_pirq_msi(uint32_t msi_data) |
151 | { | |
152 | /* If vector is 0, the msi is remapped into a pirq, passed as | |
153 | * dest_id. | |
154 | */ | |
155 | return ((msi_data & MSI_DATA_VECTOR_MASK) >> MSI_DATA_VECTOR_SHIFT) == 0; | |
156 | } | |
157 | ||
f1dbf015 WL |
158 | void xen_hvm_inject_msi(uint64_t addr, uint32_t data) |
159 | { | |
8f25e754 | 160 | xen_inject_msi(xen_domid, addr, data); |
f1dbf015 WL |
161 | } |
162 | ||
da98c8eb | 163 | static void xen_suspend_notifier(Notifier *notifier, void *data) |
c9622478 | 164 | { |
da98c8eb | 165 | xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 3); |
c9622478 AP |
166 | } |
167 | ||
9c11a8ac AP |
168 | /* Xen Interrupt Controller */ |
169 | ||
170 | static void xen_set_irq(void *opaque, int irq, int level) | |
171 | { | |
8f25e754 | 172 | xen_set_isa_irq_level(xen_domid, irq, level); |
9c11a8ac AP |
173 | } |
174 | ||
175 | qemu_irq *xen_interrupt_controller_init(void) | |
176 | { | |
177 | return qemu_allocate_irqs(xen_set_irq, NULL, 16); | |
178 | } | |
179 | ||
432d268c JN |
180 | /* Memory Ops */ |
181 | ||
91176e31 | 182 | static void xen_ram_init(PCMachineState *pcms, |
3c2a9669 | 183 | ram_addr_t ram_size, MemoryRegion **ram_memory_p) |
432d268c | 184 | { |
ce76b8a8 | 185 | MemoryRegion *sysmem = get_system_memory(); |
ce76b8a8 | 186 | ram_addr_t block_len; |
4ccd89d2 MAL |
187 | uint64_t user_lowmem = object_property_get_uint(qdev_get_machine(), |
188 | PC_MACHINE_MAX_RAM_BELOW_4G, | |
189 | &error_abort); | |
432d268c | 190 | |
a9dd38db | 191 | /* Handle the machine opt max-ram-below-4g. It is basically doing |
c4f5cdc5 DS |
192 | * min(xen limit, user limit). |
193 | */ | |
5ec7d098 GH |
194 | if (!user_lowmem) { |
195 | user_lowmem = HVM_BELOW_4G_RAM_END; /* default */ | |
196 | } | |
c4f5cdc5 DS |
197 | if (HVM_BELOW_4G_RAM_END <= user_lowmem) { |
198 | user_lowmem = HVM_BELOW_4G_RAM_END; | |
8a369e20 | 199 | } |
432d268c | 200 | |
c4f5cdc5 | 201 | if (ram_size >= user_lowmem) { |
91176e31 EH |
202 | pcms->above_4g_mem_size = ram_size - user_lowmem; |
203 | pcms->below_4g_mem_size = user_lowmem; | |
432d268c | 204 | } else { |
91176e31 EH |
205 | pcms->above_4g_mem_size = 0; |
206 | pcms->below_4g_mem_size = ram_size; | |
432d268c | 207 | } |
91176e31 | 208 | if (!pcms->above_4g_mem_size) { |
c4f5cdc5 DS |
209 | block_len = ram_size; |
210 | } else { | |
211 | /* | |
212 | * Xen does not allocate the memory continuously, it keeps a | |
213 | * hole of the size computed above or passed in. | |
214 | */ | |
91176e31 | 215 | block_len = (1ULL << 32) + pcms->above_4g_mem_size; |
c4f5cdc5 | 216 | } |
98a99ce0 | 217 | memory_region_init_ram(&ram_memory, NULL, "xen.ram", block_len, |
f8ed85ac | 218 | &error_fatal); |
c4f5cdc5 | 219 | *ram_memory_p = &ram_memory; |
432d268c | 220 | |
2c9b15ca | 221 | memory_region_init_alias(&ram_640k, NULL, "xen.ram.640k", |
ce76b8a8 AK |
222 | &ram_memory, 0, 0xa0000); |
223 | memory_region_add_subregion(sysmem, 0, &ram_640k); | |
8a369e20 AP |
224 | /* Skip of the VGA IO memory space, it will be registered later by the VGA |
225 | * emulated device. | |
226 | * | |
227 | * The area between 0xc0000 and 0x100000 will be used by SeaBIOS to load | |
228 | * the Options ROM, so it is registered here as RAM. | |
229 | */ | |
2c9b15ca | 230 | memory_region_init_alias(&ram_lo, NULL, "xen.ram.lo", |
3c2a9669 | 231 | &ram_memory, 0xc0000, |
91176e31 | 232 | pcms->below_4g_mem_size - 0xc0000); |
ce76b8a8 | 233 | memory_region_add_subregion(sysmem, 0xc0000, &ram_lo); |
91176e31 | 234 | if (pcms->above_4g_mem_size > 0) { |
2c9b15ca | 235 | memory_region_init_alias(&ram_hi, NULL, "xen.ram.hi", |
ce76b8a8 | 236 | &ram_memory, 0x100000000ULL, |
91176e31 | 237 | pcms->above_4g_mem_size); |
ce76b8a8 | 238 | memory_region_add_subregion(sysmem, 0x100000000ULL, &ram_hi); |
432d268c | 239 | } |
432d268c JN |
240 | } |
241 | ||
37aa7a0e MA |
242 | void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr, |
243 | Error **errp) | |
432d268c JN |
244 | { |
245 | unsigned long nr_pfn; | |
246 | xen_pfn_t *pfn_list; | |
247 | int i; | |
248 | ||
c234572d AP |
249 | if (runstate_check(RUN_STATE_INMIGRATE)) { |
250 | /* RAM already populated in Xen */ | |
251 | fprintf(stderr, "%s: do not alloc "RAM_ADDR_FMT | |
252 | " bytes of ram at "RAM_ADDR_FMT" when runstate is INMIGRATE\n", | |
253 | __func__, size, ram_addr); | |
254 | return; | |
255 | } | |
256 | ||
ce76b8a8 AK |
257 | if (mr == &ram_memory) { |
258 | return; | |
259 | } | |
260 | ||
432d268c JN |
261 | trace_xen_ram_alloc(ram_addr, size); |
262 | ||
263 | nr_pfn = size >> TARGET_PAGE_BITS; | |
7267c094 | 264 | pfn_list = g_malloc(sizeof (*pfn_list) * nr_pfn); |
432d268c JN |
265 | |
266 | for (i = 0; i < nr_pfn; i++) { | |
267 | pfn_list[i] = (ram_addr >> TARGET_PAGE_BITS) + i; | |
268 | } | |
269 | ||
270 | if (xc_domain_populate_physmap_exact(xen_xc, xen_domid, nr_pfn, 0, 0, pfn_list)) { | |
37aa7a0e MA |
271 | error_setg(errp, "xen: failed to populate ram at " RAM_ADDR_FMT, |
272 | ram_addr); | |
432d268c JN |
273 | } |
274 | ||
7267c094 | 275 | g_free(pfn_list); |
432d268c JN |
276 | } |
277 | ||
04a8f72e | 278 | static XenPhysmap *get_physmapping(hwaddr start_addr, ram_addr_t size) |
b4dd7802 AP |
279 | { |
280 | XenPhysmap *physmap = NULL; | |
281 | ||
282 | start_addr &= TARGET_PAGE_MASK; | |
283 | ||
04a8f72e | 284 | QLIST_FOREACH(physmap, &xen_physmap, list) { |
b4dd7802 AP |
285 | if (range_covers_byte(physmap->start_addr, physmap->size, start_addr)) { |
286 | return physmap; | |
287 | } | |
288 | } | |
289 | return NULL; | |
290 | } | |
291 | ||
04a8f72e | 292 | static hwaddr xen_phys_offset_to_gaddr(hwaddr phys_offset, ram_addr_t size) |
cd1ba7de | 293 | { |
04a8f72e | 294 | hwaddr addr = phys_offset & TARGET_PAGE_MASK; |
cd1ba7de AP |
295 | XenPhysmap *physmap = NULL; |
296 | ||
04a8f72e | 297 | QLIST_FOREACH(physmap, &xen_physmap, list) { |
cd1ba7de | 298 | if (range_covers_byte(physmap->phys_offset, physmap->size, addr)) { |
04a8f72e | 299 | return physmap->start_addr + (phys_offset - physmap->phys_offset); |
cd1ba7de AP |
300 | } |
301 | } | |
302 | ||
04a8f72e | 303 | return phys_offset; |
cd1ba7de AP |
304 | } |
305 | ||
04a8f72e | 306 | #ifdef XEN_COMPAT_PHYSMAP |
697b66d0 ID |
307 | static int xen_save_physmap(XenIOState *state, XenPhysmap *physmap) |
308 | { | |
309 | char path[80], value[17]; | |
310 | ||
311 | snprintf(path, sizeof(path), | |
312 | "/local/domain/0/device-model/%d/physmap/%"PRIx64"/start_addr", | |
313 | xen_domid, (uint64_t)physmap->phys_offset); | |
314 | snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)physmap->start_addr); | |
315 | if (!xs_write(state->xenstore, 0, path, value, strlen(value))) { | |
316 | return -1; | |
317 | } | |
318 | snprintf(path, sizeof(path), | |
319 | "/local/domain/0/device-model/%d/physmap/%"PRIx64"/size", | |
320 | xen_domid, (uint64_t)physmap->phys_offset); | |
321 | snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)physmap->size); | |
322 | if (!xs_write(state->xenstore, 0, path, value, strlen(value))) { | |
323 | return -1; | |
324 | } | |
325 | if (physmap->name) { | |
326 | snprintf(path, sizeof(path), | |
327 | "/local/domain/0/device-model/%d/physmap/%"PRIx64"/name", | |
328 | xen_domid, (uint64_t)physmap->phys_offset); | |
329 | if (!xs_write(state->xenstore, 0, path, | |
330 | physmap->name, strlen(physmap->name))) { | |
331 | return -1; | |
332 | } | |
333 | } | |
334 | return 0; | |
335 | } | |
331b5189 ID |
336 | #else |
337 | static int xen_save_physmap(XenIOState *state, XenPhysmap *physmap) | |
338 | { | |
339 | return 0; | |
340 | } | |
341 | #endif | |
697b66d0 | 342 | |
b4dd7802 | 343 | static int xen_add_to_physmap(XenIOState *state, |
a8170e5e | 344 | hwaddr start_addr, |
b4dd7802 | 345 | ram_addr_t size, |
20581d20 | 346 | MemoryRegion *mr, |
a8170e5e | 347 | hwaddr offset_within_region) |
b4dd7802 | 348 | { |
2cbf8903 | 349 | unsigned long nr_pages; |
b4dd7802 AP |
350 | int rc = 0; |
351 | XenPhysmap *physmap = NULL; | |
a8170e5e AK |
352 | hwaddr pfn, start_gpfn; |
353 | hwaddr phys_offset = memory_region_get_ram_addr(mr); | |
3e1f5086 | 354 | const char *mr_name; |
b4dd7802 | 355 | |
04a8f72e | 356 | if (get_physmapping(start_addr, size)) { |
b4dd7802 AP |
357 | return 0; |
358 | } | |
359 | if (size <= 0) { | |
360 | return -1; | |
361 | } | |
362 | ||
ebed8505 SS |
363 | /* Xen can only handle a single dirty log region for now and we want |
364 | * the linear framebuffer to be that region. | |
365 | * Avoid tracking any regions that is not videoram and avoid tracking | |
366 | * the legacy vga region. */ | |
20581d20 AK |
367 | if (mr == framebuffer && start_addr > 0xbffff) { |
368 | goto go_physmap; | |
ebed8505 SS |
369 | } |
370 | return -1; | |
371 | ||
372 | go_physmap: | |
f1b8caf1 SE |
373 | DPRINTF("mapping vram to %"HWADDR_PRIx" - %"HWADDR_PRIx"\n", |
374 | start_addr, start_addr + size); | |
b4dd7802 | 375 | |
331b5189 ID |
376 | mr_name = memory_region_name(mr); |
377 | ||
378 | physmap = g_malloc(sizeof(XenPhysmap)); | |
379 | ||
380 | physmap->start_addr = start_addr; | |
381 | physmap->size = size; | |
382 | physmap->name = mr_name; | |
383 | physmap->phys_offset = phys_offset; | |
384 | ||
04a8f72e | 385 | QLIST_INSERT_HEAD(&xen_physmap, physmap, list); |
331b5189 ID |
386 | |
387 | if (runstate_check(RUN_STATE_INMIGRATE)) { | |
388 | /* Now when we have a physmap entry we can replace a dummy mapping with | |
389 | * a real one of guest foreign memory. */ | |
390 | uint8_t *p = xen_replace_cache_entry(phys_offset, start_addr, size); | |
391 | assert(p && p == memory_region_get_ram_ptr(mr)); | |
392 | ||
393 | return 0; | |
394 | } | |
395 | ||
b4dd7802 AP |
396 | pfn = phys_offset >> TARGET_PAGE_BITS; |
397 | start_gpfn = start_addr >> TARGET_PAGE_BITS; | |
2cbf8903 RL |
398 | nr_pages = size >> TARGET_PAGE_BITS; |
399 | rc = xendevicemodel_relocate_memory(xen_dmod, xen_domid, nr_pages, pfn, | |
400 | start_gpfn); | |
401 | if (rc) { | |
402 | int saved_errno = errno; | |
403 | ||
404 | error_report("relocate_memory %lu pages from GFN %"HWADDR_PRIx | |
405 | " to GFN %"HWADDR_PRIx" failed: %s", | |
406 | nr_pages, pfn, start_gpfn, strerror(saved_errno)); | |
407 | errno = saved_errno; | |
408 | return -1; | |
b4dd7802 AP |
409 | } |
410 | ||
2cbf8903 | 411 | rc = xendevicemodel_pin_memory_cacheattr(xen_dmod, xen_domid, |
b4dd7802 | 412 | start_addr >> TARGET_PAGE_BITS, |
8b6bb0ad | 413 | (start_addr + size - 1) >> TARGET_PAGE_BITS, |
b4dd7802 | 414 | XEN_DOMCTL_MEM_CACHEATTR_WB); |
2cbf8903 RL |
415 | if (rc) { |
416 | error_report("pin_memory_cacheattr failed: %s", strerror(errno)); | |
417 | } | |
697b66d0 | 418 | return xen_save_physmap(state, physmap); |
b4dd7802 AP |
419 | } |
420 | ||
421 | static int xen_remove_from_physmap(XenIOState *state, | |
a8170e5e | 422 | hwaddr start_addr, |
b4dd7802 AP |
423 | ram_addr_t size) |
424 | { | |
b4dd7802 AP |
425 | int rc = 0; |
426 | XenPhysmap *physmap = NULL; | |
a8170e5e | 427 | hwaddr phys_offset = 0; |
b4dd7802 | 428 | |
04a8f72e | 429 | physmap = get_physmapping(start_addr, size); |
b4dd7802 AP |
430 | if (physmap == NULL) { |
431 | return -1; | |
432 | } | |
433 | ||
434 | phys_offset = physmap->phys_offset; | |
435 | size = physmap->size; | |
436 | ||
d18e173a WL |
437 | DPRINTF("unmapping vram to %"HWADDR_PRIx" - %"HWADDR_PRIx", at " |
438 | "%"HWADDR_PRIx"\n", start_addr, start_addr + size, phys_offset); | |
b4dd7802 AP |
439 | |
440 | size >>= TARGET_PAGE_BITS; | |
441 | start_addr >>= TARGET_PAGE_BITS; | |
442 | phys_offset >>= TARGET_PAGE_BITS; | |
2cbf8903 RL |
443 | rc = xendevicemodel_relocate_memory(xen_dmod, xen_domid, size, start_addr, |
444 | phys_offset); | |
445 | if (rc) { | |
446 | int saved_errno = errno; | |
447 | ||
448 | error_report("relocate_memory "RAM_ADDR_FMT" pages" | |
449 | " from GFN %"HWADDR_PRIx | |
450 | " to GFN %"HWADDR_PRIx" failed: %s", | |
451 | size, start_addr, phys_offset, strerror(saved_errno)); | |
452 | errno = saved_errno; | |
453 | return -1; | |
b4dd7802 AP |
454 | } |
455 | ||
456 | QLIST_REMOVE(physmap, list); | |
457 | if (state->log_for_dirtybit == physmap) { | |
458 | state->log_for_dirtybit = NULL; | |
459 | } | |
c5633d99 | 460 | g_free(physmap); |
b4dd7802 AP |
461 | |
462 | return 0; | |
463 | } | |
464 | ||
20581d20 AK |
465 | static void xen_set_memory(struct MemoryListener *listener, |
466 | MemoryRegionSection *section, | |
467 | bool add) | |
b4dd7802 | 468 | { |
20581d20 | 469 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
a8170e5e | 470 | hwaddr start_addr = section->offset_within_address_space; |
052e87b0 | 471 | ram_addr_t size = int128_get64(section->size); |
2d1a35be | 472 | bool log_dirty = memory_region_is_logging(section->mr, DIRTY_MEMORY_VGA); |
b4dd7802 AP |
473 | hvmmem_type_t mem_type; |
474 | ||
3996e85c PD |
475 | if (section->mr == &ram_memory) { |
476 | return; | |
477 | } else { | |
478 | if (add) { | |
260cabed | 479 | xen_map_memory_section(xen_domid, state->ioservid, |
3996e85c PD |
480 | section); |
481 | } else { | |
260cabed | 482 | xen_unmap_memory_section(xen_domid, state->ioservid, |
3996e85c PD |
483 | section); |
484 | } | |
485 | } | |
486 | ||
20581d20 | 487 | if (!memory_region_is_ram(section->mr)) { |
b4dd7802 AP |
488 | return; |
489 | } | |
490 | ||
3996e85c | 491 | if (log_dirty != add) { |
20581d20 AK |
492 | return; |
493 | } | |
494 | ||
495 | trace_xen_client_set_memory(start_addr, size, log_dirty); | |
b4dd7802 AP |
496 | |
497 | start_addr &= TARGET_PAGE_MASK; | |
498 | size = TARGET_PAGE_ALIGN(size); | |
20581d20 AK |
499 | |
500 | if (add) { | |
501 | if (!memory_region_is_rom(section->mr)) { | |
502 | xen_add_to_physmap(state, start_addr, size, | |
503 | section->mr, section->offset_within_region); | |
504 | } else { | |
505 | mem_type = HVMMEM_ram_ro; | |
8f25e754 PD |
506 | if (xen_set_mem_type(xen_domid, mem_type, |
507 | start_addr >> TARGET_PAGE_BITS, | |
508 | size >> TARGET_PAGE_BITS)) { | |
509 | DPRINTF("xen_set_mem_type error, addr: "TARGET_FMT_plx"\n", | |
20581d20 AK |
510 | start_addr); |
511 | } | |
b4dd7802 | 512 | } |
20581d20 | 513 | } else { |
b4dd7802 AP |
514 | if (xen_remove_from_physmap(state, start_addr, size) < 0) { |
515 | DPRINTF("physmapping does not exist at "TARGET_FMT_plx"\n", start_addr); | |
516 | } | |
b4dd7802 AP |
517 | } |
518 | } | |
519 | ||
20581d20 AK |
520 | static void xen_region_add(MemoryListener *listener, |
521 | MemoryRegionSection *section) | |
522 | { | |
dfde4e6e | 523 | memory_region_ref(section->mr); |
20581d20 AK |
524 | xen_set_memory(listener, section, true); |
525 | } | |
526 | ||
527 | static void xen_region_del(MemoryListener *listener, | |
528 | MemoryRegionSection *section) | |
529 | { | |
530 | xen_set_memory(listener, section, false); | |
dfde4e6e | 531 | memory_region_unref(section->mr); |
20581d20 AK |
532 | } |
533 | ||
3996e85c PD |
534 | static void xen_io_add(MemoryListener *listener, |
535 | MemoryRegionSection *section) | |
536 | { | |
537 | XenIOState *state = container_of(listener, XenIOState, io_listener); | |
a8ff4316 | 538 | MemoryRegion *mr = section->mr; |
3996e85c | 539 | |
a8ff4316 PD |
540 | if (mr->ops == &unassigned_io_ops) { |
541 | return; | |
542 | } | |
543 | ||
544 | memory_region_ref(mr); | |
3996e85c | 545 | |
260cabed | 546 | xen_map_io_section(xen_domid, state->ioservid, section); |
3996e85c PD |
547 | } |
548 | ||
549 | static void xen_io_del(MemoryListener *listener, | |
550 | MemoryRegionSection *section) | |
551 | { | |
552 | XenIOState *state = container_of(listener, XenIOState, io_listener); | |
a8ff4316 PD |
553 | MemoryRegion *mr = section->mr; |
554 | ||
555 | if (mr->ops == &unassigned_io_ops) { | |
556 | return; | |
557 | } | |
3996e85c | 558 | |
260cabed | 559 | xen_unmap_io_section(xen_domid, state->ioservid, section); |
3996e85c | 560 | |
a8ff4316 | 561 | memory_region_unref(mr); |
3996e85c PD |
562 | } |
563 | ||
564 | static void xen_device_realize(DeviceListener *listener, | |
565 | DeviceState *dev) | |
566 | { | |
567 | XenIOState *state = container_of(listener, XenIOState, device_listener); | |
568 | ||
569 | if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { | |
570 | PCIDevice *pci_dev = PCI_DEVICE(dev); | |
571 | ||
260cabed | 572 | xen_map_pcidev(xen_domid, state->ioservid, pci_dev); |
3996e85c PD |
573 | } |
574 | } | |
575 | ||
576 | static void xen_device_unrealize(DeviceListener *listener, | |
577 | DeviceState *dev) | |
578 | { | |
579 | XenIOState *state = container_of(listener, XenIOState, device_listener); | |
580 | ||
581 | if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { | |
582 | PCIDevice *pci_dev = PCI_DEVICE(dev); | |
583 | ||
260cabed | 584 | xen_unmap_pcidev(xen_domid, state->ioservid, pci_dev); |
3996e85c PD |
585 | } |
586 | } | |
587 | ||
b18620cf | 588 | static void xen_sync_dirty_bitmap(XenIOState *state, |
a8170e5e | 589 | hwaddr start_addr, |
b18620cf | 590 | ram_addr_t size) |
b4dd7802 | 591 | { |
a8170e5e | 592 | hwaddr npages = size >> TARGET_PAGE_BITS; |
b4dd7802 | 593 | const int width = sizeof(unsigned long) * 8; |
d0448de7 | 594 | unsigned long bitmap[DIV_ROUND_UP(npages, width)]; |
b4dd7802 AP |
595 | int rc, i, j; |
596 | const XenPhysmap *physmap = NULL; | |
597 | ||
04a8f72e | 598 | physmap = get_physmapping(start_addr, size); |
b4dd7802 AP |
599 | if (physmap == NULL) { |
600 | /* not handled */ | |
b18620cf | 601 | return; |
b4dd7802 AP |
602 | } |
603 | ||
604 | if (state->log_for_dirtybit == NULL) { | |
605 | state->log_for_dirtybit = physmap; | |
606 | } else if (state->log_for_dirtybit != physmap) { | |
b18620cf AP |
607 | /* Only one range for dirty bitmap can be tracked. */ |
608 | return; | |
b4dd7802 | 609 | } |
b4dd7802 | 610 | |
8f25e754 PD |
611 | rc = xen_track_dirty_vram(xen_domid, start_addr >> TARGET_PAGE_BITS, |
612 | npages, bitmap); | |
b18620cf | 613 | if (rc < 0) { |
74bc4151 RPM |
614 | #ifndef ENODATA |
615 | #define ENODATA ENOENT | |
616 | #endif | |
617 | if (errno == ENODATA) { | |
8aba7dc0 AP |
618 | memory_region_set_dirty(framebuffer, 0, size); |
619 | DPRINTF("xen: track_dirty_vram failed (0x" TARGET_FMT_plx | |
b18620cf | 620 | ", 0x" TARGET_FMT_plx "): %s\n", |
74bc4151 | 621 | start_addr, start_addr + size, strerror(errno)); |
b18620cf AP |
622 | } |
623 | return; | |
b4dd7802 AP |
624 | } |
625 | ||
626 | for (i = 0; i < ARRAY_SIZE(bitmap); i++) { | |
627 | unsigned long map = bitmap[i]; | |
628 | while (map != 0) { | |
adf9d70b | 629 | j = ctzl(map); |
b4dd7802 | 630 | map &= ~(1ul << j); |
5a97065b | 631 | memory_region_set_dirty(framebuffer, |
fd4aa979 BS |
632 | (i * width + j) * TARGET_PAGE_SIZE, |
633 | TARGET_PAGE_SIZE); | |
b4dd7802 AP |
634 | }; |
635 | } | |
b4dd7802 AP |
636 | } |
637 | ||
20581d20 | 638 | static void xen_log_start(MemoryListener *listener, |
b2dfd71c PB |
639 | MemoryRegionSection *section, |
640 | int old, int new) | |
b4dd7802 | 641 | { |
20581d20 | 642 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
b4dd7802 | 643 | |
b2dfd71c PB |
644 | if (new & ~old & (1 << DIRTY_MEMORY_VGA)) { |
645 | xen_sync_dirty_bitmap(state, section->offset_within_address_space, | |
646 | int128_get64(section->size)); | |
647 | } | |
b4dd7802 AP |
648 | } |
649 | ||
b2dfd71c PB |
650 | static void xen_log_stop(MemoryListener *listener, MemoryRegionSection *section, |
651 | int old, int new) | |
b4dd7802 | 652 | { |
20581d20 | 653 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
b4dd7802 | 654 | |
b2dfd71c PB |
655 | if (old & ~new & (1 << DIRTY_MEMORY_VGA)) { |
656 | state->log_for_dirtybit = NULL; | |
657 | /* Disable dirty bit tracking */ | |
8f25e754 | 658 | xen_track_dirty_vram(xen_domid, 0, 0, NULL); |
b2dfd71c | 659 | } |
b4dd7802 AP |
660 | } |
661 | ||
20581d20 | 662 | static void xen_log_sync(MemoryListener *listener, MemoryRegionSection *section) |
b4dd7802 | 663 | { |
20581d20 | 664 | XenIOState *state = container_of(listener, XenIOState, memory_listener); |
b4dd7802 | 665 | |
b18620cf | 666 | xen_sync_dirty_bitmap(state, section->offset_within_address_space, |
052e87b0 | 667 | int128_get64(section->size)); |
b4dd7802 AP |
668 | } |
669 | ||
20581d20 AK |
670 | static void xen_log_global_start(MemoryListener *listener) |
671 | { | |
39f42439 AP |
672 | if (xen_enabled()) { |
673 | xen_in_migration = true; | |
674 | } | |
20581d20 AK |
675 | } |
676 | ||
677 | static void xen_log_global_stop(MemoryListener *listener) | |
b4dd7802 | 678 | { |
39f42439 | 679 | xen_in_migration = false; |
b4dd7802 AP |
680 | } |
681 | ||
20581d20 AK |
682 | static MemoryListener xen_memory_listener = { |
683 | .region_add = xen_region_add, | |
684 | .region_del = xen_region_del, | |
b4dd7802 AP |
685 | .log_start = xen_log_start, |
686 | .log_stop = xen_log_stop, | |
20581d20 AK |
687 | .log_sync = xen_log_sync, |
688 | .log_global_start = xen_log_global_start, | |
689 | .log_global_stop = xen_log_global_stop, | |
72e22d2f | 690 | .priority = 10, |
b4dd7802 | 691 | }; |
432d268c | 692 | |
3996e85c PD |
693 | static MemoryListener xen_io_listener = { |
694 | .region_add = xen_io_add, | |
695 | .region_del = xen_io_del, | |
696 | .priority = 10, | |
697 | }; | |
698 | ||
699 | static DeviceListener xen_device_listener = { | |
700 | .realize = xen_device_realize, | |
701 | .unrealize = xen_device_unrealize, | |
702 | }; | |
703 | ||
9ce94e7c AS |
704 | /* get the ioreq packets from share mem */ |
705 | static ioreq_t *cpu_get_ioreq_from_shared_memory(XenIOState *state, int vcpu) | |
706 | { | |
707 | ioreq_t *req = xen_vcpu_ioreq(state->shared_page, vcpu); | |
708 | ||
709 | if (req->state != STATE_IOREQ_READY) { | |
710 | DPRINTF("I/O request not ready: " | |
711 | "%x, ptr: %x, port: %"PRIx64", " | |
47d3df23 | 712 | "data: %"PRIx64", count: %u, size: %u\n", |
9ce94e7c AS |
713 | req->state, req->data_is_ptr, req->addr, |
714 | req->data, req->count, req->size); | |
715 | return NULL; | |
716 | } | |
717 | ||
718 | xen_rmb(); /* see IOREQ_READY /then/ read contents of ioreq */ | |
719 | ||
720 | req->state = STATE_IOREQ_INPROCESS; | |
721 | return req; | |
722 | } | |
723 | ||
724 | /* use poll to get the port notification */ | |
725 | /* ioreq_vec--out,the */ | |
726 | /* retval--the number of ioreq packet */ | |
727 | static ioreq_t *cpu_get_ioreq(XenIOState *state) | |
728 | { | |
729 | int i; | |
730 | evtchn_port_t port; | |
731 | ||
a2db2a1e | 732 | port = xenevtchn_pending(state->xce_handle); |
fda1f768 | 733 | if (port == state->bufioreq_local_port) { |
bc72ad67 AB |
734 | timer_mod(state->buffered_io_timer, |
735 | BUFFER_IO_MAX_DELAY + qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); | |
fda1f768 SS |
736 | return NULL; |
737 | } | |
738 | ||
9ce94e7c | 739 | if (port != -1) { |
1cd25a88 | 740 | for (i = 0; i < max_cpus; i++) { |
9ce94e7c AS |
741 | if (state->ioreq_local_port[i] == port) { |
742 | break; | |
743 | } | |
744 | } | |
745 | ||
1cd25a88 | 746 | if (i == max_cpus) { |
9ce94e7c AS |
747 | hw_error("Fatal error while trying to get io event!\n"); |
748 | } | |
749 | ||
750 | /* unmask the wanted port again */ | |
a2db2a1e | 751 | xenevtchn_unmask(state->xce_handle, port); |
9ce94e7c AS |
752 | |
753 | /* get the io packet from shared memory */ | |
754 | state->send_vcpu = i; | |
755 | return cpu_get_ioreq_from_shared_memory(state, i); | |
756 | } | |
757 | ||
758 | /* read error or read nothing */ | |
759 | return NULL; | |
760 | } | |
761 | ||
89a80e74 | 762 | static uint32_t do_inp(uint32_t addr, unsigned long size) |
9ce94e7c AS |
763 | { |
764 | switch (size) { | |
765 | case 1: | |
766 | return cpu_inb(addr); | |
767 | case 2: | |
768 | return cpu_inw(addr); | |
769 | case 4: | |
770 | return cpu_inl(addr); | |
771 | default: | |
89a80e74 | 772 | hw_error("inp: bad size: %04x %lx", addr, size); |
9ce94e7c AS |
773 | } |
774 | } | |
775 | ||
89a80e74 | 776 | static void do_outp(uint32_t addr, |
9ce94e7c AS |
777 | unsigned long size, uint32_t val) |
778 | { | |
779 | switch (size) { | |
780 | case 1: | |
781 | return cpu_outb(addr, val); | |
782 | case 2: | |
783 | return cpu_outw(addr, val); | |
784 | case 4: | |
785 | return cpu_outl(addr, val); | |
786 | default: | |
89a80e74 | 787 | hw_error("outp: bad size: %04x %lx", addr, size); |
9ce94e7c AS |
788 | } |
789 | } | |
790 | ||
a3864829 IJ |
791 | /* |
792 | * Helper functions which read/write an object from/to physical guest | |
793 | * memory, as part of the implementation of an ioreq. | |
794 | * | |
795 | * Equivalent to | |
796 | * cpu_physical_memory_rw(addr + (req->df ? -1 : +1) * req->size * i, | |
797 | * val, req->size, 0/1) | |
798 | * except without the integer overflow problems. | |
799 | */ | |
800 | static void rw_phys_req_item(hwaddr addr, | |
801 | ioreq_t *req, uint32_t i, void *val, int rw) | |
802 | { | |
803 | /* Do everything unsigned so overflow just results in a truncated result | |
804 | * and accesses to undesired parts of guest memory, which is up | |
805 | * to the guest */ | |
806 | hwaddr offset = (hwaddr)req->size * i; | |
807 | if (req->df) { | |
808 | addr -= offset; | |
809 | } else { | |
810 | addr += offset; | |
811 | } | |
812 | cpu_physical_memory_rw(addr, val, req->size, rw); | |
813 | } | |
814 | ||
815 | static inline void read_phys_req_item(hwaddr addr, | |
816 | ioreq_t *req, uint32_t i, void *val) | |
9ce94e7c | 817 | { |
a3864829 IJ |
818 | rw_phys_req_item(addr, req, i, val, 0); |
819 | } | |
820 | static inline void write_phys_req_item(hwaddr addr, | |
821 | ioreq_t *req, uint32_t i, void *val) | |
822 | { | |
823 | rw_phys_req_item(addr, req, i, val, 1); | |
824 | } | |
9ce94e7c | 825 | |
a3864829 IJ |
826 | |
827 | static void cpu_ioreq_pio(ioreq_t *req) | |
828 | { | |
249e7e0f | 829 | uint32_t i; |
9ce94e7c | 830 | |
eeb6b13a DS |
831 | trace_cpu_ioreq_pio(req, req->dir, req->df, req->data_is_ptr, req->addr, |
832 | req->data, req->count, req->size); | |
833 | ||
b85f9dfd JB |
834 | if (req->size > sizeof(uint32_t)) { |
835 | hw_error("PIO: bad size (%u)", req->size); | |
836 | } | |
837 | ||
9ce94e7c AS |
838 | if (req->dir == IOREQ_READ) { |
839 | if (!req->data_is_ptr) { | |
840 | req->data = do_inp(req->addr, req->size); | |
eeb6b13a DS |
841 | trace_cpu_ioreq_pio_read_reg(req, req->data, req->addr, |
842 | req->size); | |
9ce94e7c AS |
843 | } else { |
844 | uint32_t tmp; | |
845 | ||
846 | for (i = 0; i < req->count; i++) { | |
847 | tmp = do_inp(req->addr, req->size); | |
a3864829 | 848 | write_phys_req_item(req->data, req, i, &tmp); |
9ce94e7c AS |
849 | } |
850 | } | |
851 | } else if (req->dir == IOREQ_WRITE) { | |
852 | if (!req->data_is_ptr) { | |
eeb6b13a DS |
853 | trace_cpu_ioreq_pio_write_reg(req, req->data, req->addr, |
854 | req->size); | |
9ce94e7c AS |
855 | do_outp(req->addr, req->size, req->data); |
856 | } else { | |
857 | for (i = 0; i < req->count; i++) { | |
858 | uint32_t tmp = 0; | |
859 | ||
a3864829 | 860 | read_phys_req_item(req->data, req, i, &tmp); |
9ce94e7c AS |
861 | do_outp(req->addr, req->size, tmp); |
862 | } | |
863 | } | |
864 | } | |
865 | } | |
866 | ||
867 | static void cpu_ioreq_move(ioreq_t *req) | |
868 | { | |
249e7e0f | 869 | uint32_t i; |
9ce94e7c | 870 | |
eeb6b13a DS |
871 | trace_cpu_ioreq_move(req, req->dir, req->df, req->data_is_ptr, req->addr, |
872 | req->data, req->count, req->size); | |
873 | ||
b85f9dfd JB |
874 | if (req->size > sizeof(req->data)) { |
875 | hw_error("MMIO: bad size (%u)", req->size); | |
876 | } | |
877 | ||
9ce94e7c AS |
878 | if (!req->data_is_ptr) { |
879 | if (req->dir == IOREQ_READ) { | |
880 | for (i = 0; i < req->count; i++) { | |
a3864829 | 881 | read_phys_req_item(req->addr, req, i, &req->data); |
9ce94e7c AS |
882 | } |
883 | } else if (req->dir == IOREQ_WRITE) { | |
884 | for (i = 0; i < req->count; i++) { | |
a3864829 | 885 | write_phys_req_item(req->addr, req, i, &req->data); |
9ce94e7c AS |
886 | } |
887 | } | |
888 | } else { | |
2b734340 | 889 | uint64_t tmp; |
9ce94e7c AS |
890 | |
891 | if (req->dir == IOREQ_READ) { | |
892 | for (i = 0; i < req->count; i++) { | |
a3864829 IJ |
893 | read_phys_req_item(req->addr, req, i, &tmp); |
894 | write_phys_req_item(req->data, req, i, &tmp); | |
9ce94e7c AS |
895 | } |
896 | } else if (req->dir == IOREQ_WRITE) { | |
897 | for (i = 0; i < req->count; i++) { | |
a3864829 IJ |
898 | read_phys_req_item(req->data, req, i, &tmp); |
899 | write_phys_req_item(req->addr, req, i, &tmp); | |
9ce94e7c AS |
900 | } |
901 | } | |
902 | } | |
903 | } | |
904 | ||
37f9e258 DS |
905 | static void regs_to_cpu(vmware_regs_t *vmport_regs, ioreq_t *req) |
906 | { | |
907 | X86CPU *cpu; | |
908 | CPUX86State *env; | |
909 | ||
910 | cpu = X86_CPU(current_cpu); | |
911 | env = &cpu->env; | |
912 | env->regs[R_EAX] = req->data; | |
913 | env->regs[R_EBX] = vmport_regs->ebx; | |
914 | env->regs[R_ECX] = vmport_regs->ecx; | |
915 | env->regs[R_EDX] = vmport_regs->edx; | |
916 | env->regs[R_ESI] = vmport_regs->esi; | |
917 | env->regs[R_EDI] = vmport_regs->edi; | |
918 | } | |
919 | ||
920 | static void regs_from_cpu(vmware_regs_t *vmport_regs) | |
921 | { | |
922 | X86CPU *cpu = X86_CPU(current_cpu); | |
923 | CPUX86State *env = &cpu->env; | |
924 | ||
925 | vmport_regs->ebx = env->regs[R_EBX]; | |
926 | vmport_regs->ecx = env->regs[R_ECX]; | |
927 | vmport_regs->edx = env->regs[R_EDX]; | |
928 | vmport_regs->esi = env->regs[R_ESI]; | |
929 | vmport_regs->edi = env->regs[R_EDI]; | |
930 | } | |
931 | ||
932 | static void handle_vmport_ioreq(XenIOState *state, ioreq_t *req) | |
933 | { | |
934 | vmware_regs_t *vmport_regs; | |
935 | ||
936 | assert(state->shared_vmport_page); | |
937 | vmport_regs = | |
938 | &state->shared_vmport_page->vcpu_vmport_regs[state->send_vcpu]; | |
939 | QEMU_BUILD_BUG_ON(sizeof(*req) < sizeof(*vmport_regs)); | |
940 | ||
941 | current_cpu = state->cpu_by_vcpu_id[state->send_vcpu]; | |
942 | regs_to_cpu(vmport_regs, req); | |
943 | cpu_ioreq_pio(req); | |
944 | regs_from_cpu(vmport_regs); | |
945 | current_cpu = NULL; | |
946 | } | |
947 | ||
948 | static void handle_ioreq(XenIOState *state, ioreq_t *req) | |
9ce94e7c | 949 | { |
eeb6b13a DS |
950 | trace_handle_ioreq(req, req->type, req->dir, req->df, req->data_is_ptr, |
951 | req->addr, req->data, req->count, req->size); | |
952 | ||
9ce94e7c AS |
953 | if (!req->data_is_ptr && (req->dir == IOREQ_WRITE) && |
954 | (req->size < sizeof (target_ulong))) { | |
955 | req->data &= ((target_ulong) 1 << (8 * req->size)) - 1; | |
956 | } | |
957 | ||
eeb6b13a DS |
958 | if (req->dir == IOREQ_WRITE) |
959 | trace_handle_ioreq_write(req, req->type, req->df, req->data_is_ptr, | |
960 | req->addr, req->data, req->count, req->size); | |
961 | ||
9ce94e7c AS |
962 | switch (req->type) { |
963 | case IOREQ_TYPE_PIO: | |
964 | cpu_ioreq_pio(req); | |
965 | break; | |
966 | case IOREQ_TYPE_COPY: | |
967 | cpu_ioreq_move(req); | |
968 | break; | |
37f9e258 DS |
969 | case IOREQ_TYPE_VMWARE_PORT: |
970 | handle_vmport_ioreq(state, req); | |
971 | break; | |
9ce94e7c AS |
972 | case IOREQ_TYPE_TIMEOFFSET: |
973 | break; | |
974 | case IOREQ_TYPE_INVALIDATE: | |
e41d7c69 | 975 | xen_invalidate_map_cache(); |
9ce94e7c | 976 | break; |
3996e85c PD |
977 | case IOREQ_TYPE_PCI_CONFIG: { |
978 | uint32_t sbdf = req->addr >> 32; | |
979 | uint32_t val; | |
980 | ||
981 | /* Fake a write to port 0xCF8 so that | |
982 | * the config space access will target the | |
983 | * correct device model. | |
984 | */ | |
985 | val = (1u << 31) | | |
986 | ((req->addr & 0x0f00) << 16) | | |
987 | ((sbdf & 0xffff) << 8) | | |
988 | (req->addr & 0xfc); | |
989 | do_outp(0xcf8, 4, val); | |
990 | ||
991 | /* Now issue the config space access via | |
992 | * port 0xCFC | |
993 | */ | |
994 | req->addr = 0xcfc | (req->addr & 0x03); | |
995 | cpu_ioreq_pio(req); | |
996 | break; | |
997 | } | |
9ce94e7c AS |
998 | default: |
999 | hw_error("Invalid ioreq type 0x%x\n", req->type); | |
1000 | } | |
eeb6b13a DS |
1001 | if (req->dir == IOREQ_READ) { |
1002 | trace_handle_ioreq_read(req, req->type, req->df, req->data_is_ptr, | |
1003 | req->addr, req->data, req->count, req->size); | |
1004 | } | |
9ce94e7c AS |
1005 | } |
1006 | ||
fda1f768 | 1007 | static int handle_buffered_iopage(XenIOState *state) |
9ce94e7c | 1008 | { |
d8b441a3 | 1009 | buffered_iopage_t *buf_page = state->buffered_io_page; |
9ce94e7c AS |
1010 | buf_ioreq_t *buf_req = NULL; |
1011 | ioreq_t req; | |
1012 | int qw; | |
1013 | ||
d8b441a3 | 1014 | if (!buf_page) { |
fda1f768 | 1015 | return 0; |
9ce94e7c AS |
1016 | } |
1017 | ||
fda1f768 | 1018 | memset(&req, 0x00, sizeof(req)); |
f37f29d3 JB |
1019 | req.state = STATE_IOREQ_READY; |
1020 | req.count = 1; | |
e514379d | 1021 | req.dir = IOREQ_WRITE; |
fda1f768 | 1022 | |
d8b441a3 JB |
1023 | for (;;) { |
1024 | uint32_t rdptr = buf_page->read_pointer, wrptr; | |
1025 | ||
1026 | xen_rmb(); | |
1027 | wrptr = buf_page->write_pointer; | |
1028 | xen_rmb(); | |
1029 | if (rdptr != buf_page->read_pointer) { | |
1030 | continue; | |
1031 | } | |
1032 | if (rdptr == wrptr) { | |
1033 | break; | |
1034 | } | |
1035 | buf_req = &buf_page->buf_ioreq[rdptr % IOREQ_BUFFER_SLOT_NUM]; | |
f37f29d3 | 1036 | req.size = 1U << buf_req->size; |
9ce94e7c AS |
1037 | req.addr = buf_req->addr; |
1038 | req.data = buf_req->data; | |
9ce94e7c | 1039 | req.type = buf_req->type; |
b85f9dfd | 1040 | xen_rmb(); |
9ce94e7c AS |
1041 | qw = (req.size == 8); |
1042 | if (qw) { | |
ff3b8b8f JB |
1043 | if (rdptr + 1 == wrptr) { |
1044 | hw_error("Incomplete quad word buffered ioreq"); | |
1045 | } | |
d8b441a3 JB |
1046 | buf_req = &buf_page->buf_ioreq[(rdptr + 1) % |
1047 | IOREQ_BUFFER_SLOT_NUM]; | |
9ce94e7c | 1048 | req.data |= ((uint64_t)buf_req->data) << 32; |
b85f9dfd | 1049 | xen_rmb(); |
9ce94e7c AS |
1050 | } |
1051 | ||
37f9e258 | 1052 | handle_ioreq(state, &req); |
9ce94e7c | 1053 | |
f37f29d3 | 1054 | /* Only req.data may get updated by handle_ioreq(), albeit even that |
e514379d JB |
1055 | * should not happen as such data would never make it to the guest (we |
1056 | * can only usefully see writes here after all). | |
f37f29d3 JB |
1057 | */ |
1058 | assert(req.state == STATE_IOREQ_READY); | |
1059 | assert(req.count == 1); | |
e514379d | 1060 | assert(req.dir == IOREQ_WRITE); |
f37f29d3 JB |
1061 | assert(!req.data_is_ptr); |
1062 | ||
d8b441a3 | 1063 | atomic_add(&buf_page->read_pointer, qw + 1); |
9ce94e7c | 1064 | } |
fda1f768 SS |
1065 | |
1066 | return req.count; | |
9ce94e7c AS |
1067 | } |
1068 | ||
1069 | static void handle_buffered_io(void *opaque) | |
1070 | { | |
1071 | XenIOState *state = opaque; | |
1072 | ||
fda1f768 | 1073 | if (handle_buffered_iopage(state)) { |
bc72ad67 AB |
1074 | timer_mod(state->buffered_io_timer, |
1075 | BUFFER_IO_MAX_DELAY + qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); | |
fda1f768 | 1076 | } else { |
bc72ad67 | 1077 | timer_del(state->buffered_io_timer); |
a2db2a1e | 1078 | xenevtchn_unmask(state->xce_handle, state->bufioreq_local_port); |
fda1f768 | 1079 | } |
9ce94e7c AS |
1080 | } |
1081 | ||
1082 | static void cpu_handle_ioreq(void *opaque) | |
1083 | { | |
1084 | XenIOState *state = opaque; | |
1085 | ioreq_t *req = cpu_get_ioreq(state); | |
1086 | ||
1087 | handle_buffered_iopage(state); | |
1088 | if (req) { | |
b85f9dfd JB |
1089 | ioreq_t copy = *req; |
1090 | ||
1091 | xen_rmb(); | |
1092 | handle_ioreq(state, ©); | |
1093 | req->data = copy.data; | |
9ce94e7c AS |
1094 | |
1095 | if (req->state != STATE_IOREQ_INPROCESS) { | |
1096 | fprintf(stderr, "Badness in I/O request ... not in service?!: " | |
1097 | "%x, ptr: %x, port: %"PRIx64", " | |
47d3df23 | 1098 | "data: %"PRIx64", count: %u, size: %u, type: %u\n", |
9ce94e7c | 1099 | req->state, req->data_is_ptr, req->addr, |
37f9e258 | 1100 | req->data, req->count, req->size, req->type); |
180640ea | 1101 | destroy_hvm_domain(false); |
9ce94e7c AS |
1102 | return; |
1103 | } | |
1104 | ||
1105 | xen_wmb(); /* Update ioreq contents /then/ update state. */ | |
1106 | ||
1107 | /* | |
1108 | * We do this before we send the response so that the tools | |
1109 | * have the opportunity to pick up on the reset before the | |
1110 | * guest resumes and does a hlt with interrupts disabled which | |
1111 | * causes Xen to powerdown the domain. | |
1112 | */ | |
1354869c | 1113 | if (runstate_is_running()) { |
aedbe192 EB |
1114 | ShutdownCause request; |
1115 | ||
9ce94e7c | 1116 | if (qemu_shutdown_requested_get()) { |
180640ea | 1117 | destroy_hvm_domain(false); |
9ce94e7c | 1118 | } |
aedbe192 EB |
1119 | request = qemu_reset_requested_get(); |
1120 | if (request) { | |
1121 | qemu_system_reset(request); | |
180640ea | 1122 | destroy_hvm_domain(true); |
9ce94e7c AS |
1123 | } |
1124 | } | |
1125 | ||
1126 | req->state = STATE_IORESP_READY; | |
a2db2a1e IC |
1127 | xenevtchn_notify(state->xce_handle, |
1128 | state->ioreq_local_port[state->send_vcpu]); | |
9ce94e7c AS |
1129 | } |
1130 | } | |
1131 | ||
1132 | static void xen_main_loop_prepare(XenIOState *state) | |
1133 | { | |
1134 | int evtchn_fd = -1; | |
1135 | ||
a2db2a1e IC |
1136 | if (state->xce_handle != NULL) { |
1137 | evtchn_fd = xenevtchn_fd(state->xce_handle); | |
9ce94e7c AS |
1138 | } |
1139 | ||
bc72ad67 | 1140 | state->buffered_io_timer = timer_new_ms(QEMU_CLOCK_REALTIME, handle_buffered_io, |
9ce94e7c | 1141 | state); |
9ce94e7c AS |
1142 | |
1143 | if (evtchn_fd != -1) { | |
37f9e258 DS |
1144 | CPUState *cpu_state; |
1145 | ||
1146 | DPRINTF("%s: Init cpu_by_vcpu_id\n", __func__); | |
1147 | CPU_FOREACH(cpu_state) { | |
1148 | DPRINTF("%s: cpu_by_vcpu_id[%d]=%p\n", | |
1149 | __func__, cpu_state->cpu_index, cpu_state); | |
1150 | state->cpu_by_vcpu_id[cpu_state->cpu_index] = cpu_state; | |
1151 | } | |
9ce94e7c AS |
1152 | qemu_set_fd_handler(evtchn_fd, cpu_handle_ioreq, NULL, state); |
1153 | } | |
1154 | } | |
1155 | ||
1156 | ||
1dfb4dd9 LC |
1157 | static void xen_hvm_change_state_handler(void *opaque, int running, |
1158 | RunState rstate) | |
9ce94e7c | 1159 | { |
3996e85c PD |
1160 | XenIOState *state = opaque; |
1161 | ||
9ce94e7c | 1162 | if (running) { |
3996e85c | 1163 | xen_main_loop_prepare(state); |
9ce94e7c | 1164 | } |
3996e85c | 1165 | |
260cabed | 1166 | xen_set_ioreq_server_state(xen_domid, |
3996e85c PD |
1167 | state->ioservid, |
1168 | (rstate == RUN_STATE_RUNNING)); | |
9ce94e7c AS |
1169 | } |
1170 | ||
9e8dd451 | 1171 | static void xen_exit_notifier(Notifier *n, void *data) |
9ce94e7c AS |
1172 | { |
1173 | XenIOState *state = container_of(n, XenIOState, exit); | |
1174 | ||
a2db2a1e | 1175 | xenevtchn_close(state->xce_handle); |
29321335 | 1176 | xs_daemon_close(state->xenstore); |
9ce94e7c AS |
1177 | } |
1178 | ||
331b5189 | 1179 | #ifdef XEN_COMPAT_PHYSMAP |
d1814e08 SS |
1180 | static void xen_read_physmap(XenIOState *state) |
1181 | { | |
1182 | XenPhysmap *physmap = NULL; | |
1183 | unsigned int len, num, i; | |
1184 | char path[80], *value = NULL; | |
1185 | char **entries = NULL; | |
1186 | ||
1187 | snprintf(path, sizeof(path), | |
1188 | "/local/domain/0/device-model/%d/physmap", xen_domid); | |
1189 | entries = xs_directory(state->xenstore, 0, path, &num); | |
1190 | if (entries == NULL) | |
1191 | return; | |
1192 | ||
1193 | for (i = 0; i < num; i++) { | |
1194 | physmap = g_malloc(sizeof (XenPhysmap)); | |
1195 | physmap->phys_offset = strtoull(entries[i], NULL, 16); | |
1196 | snprintf(path, sizeof(path), | |
1197 | "/local/domain/0/device-model/%d/physmap/%s/start_addr", | |
1198 | xen_domid, entries[i]); | |
1199 | value = xs_read(state->xenstore, 0, path, &len); | |
1200 | if (value == NULL) { | |
c5633d99 | 1201 | g_free(physmap); |
d1814e08 SS |
1202 | continue; |
1203 | } | |
1204 | physmap->start_addr = strtoull(value, NULL, 16); | |
1205 | free(value); | |
1206 | ||
1207 | snprintf(path, sizeof(path), | |
1208 | "/local/domain/0/device-model/%d/physmap/%s/size", | |
1209 | xen_domid, entries[i]); | |
1210 | value = xs_read(state->xenstore, 0, path, &len); | |
1211 | if (value == NULL) { | |
c5633d99 | 1212 | g_free(physmap); |
d1814e08 SS |
1213 | continue; |
1214 | } | |
1215 | physmap->size = strtoull(value, NULL, 16); | |
1216 | free(value); | |
1217 | ||
1218 | snprintf(path, sizeof(path), | |
1219 | "/local/domain/0/device-model/%d/physmap/%s/name", | |
1220 | xen_domid, entries[i]); | |
1221 | physmap->name = xs_read(state->xenstore, 0, path, &len); | |
1222 | ||
04a8f72e | 1223 | QLIST_INSERT_HEAD(&xen_physmap, physmap, list); |
d1814e08 SS |
1224 | } |
1225 | free(entries); | |
d1814e08 | 1226 | } |
331b5189 ID |
1227 | #else |
1228 | static void xen_read_physmap(XenIOState *state) | |
1229 | { | |
1230 | } | |
1231 | #endif | |
d1814e08 | 1232 | |
11addd0a LJ |
1233 | static void xen_wakeup_notifier(Notifier *notifier, void *data) |
1234 | { | |
1235 | xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 0); | |
1236 | } | |
1237 | ||
71cec1ed | 1238 | static int xen_map_ioreq_server(XenIOState *state) |
29d3ccde | 1239 | { |
3996e85c PD |
1240 | xen_pfn_t ioreq_pfn; |
1241 | xen_pfn_t bufioreq_pfn; | |
1242 | evtchn_port_t bufioreq_evtchn; | |
71cec1ed PD |
1243 | int rc; |
1244 | ||
1245 | rc = xen_get_ioreq_server_info(xen_domid, state->ioservid, | |
1246 | &ioreq_pfn, &bufioreq_pfn, | |
1247 | &bufioreq_evtchn); | |
1248 | if (rc < 0) { | |
1249 | error_report("failed to get ioreq server info: error %d handle=%p", | |
1250 | errno, xen_xc); | |
1251 | return rc; | |
1252 | } | |
1253 | ||
1254 | DPRINTF("shared page at pfn %lx\n", ioreq_pfn); | |
1255 | DPRINTF("buffered io page at pfn %lx\n", bufioreq_pfn); | |
1256 | DPRINTF("buffered io evtchn is %x\n", bufioreq_evtchn); | |
1257 | ||
1258 | state->shared_page = xenforeignmemory_map(xen_fmem, xen_domid, | |
1259 | PROT_READ | PROT_WRITE, | |
1260 | 1, &ioreq_pfn, NULL); | |
1261 | if (state->shared_page == NULL) { | |
1262 | error_report("map shared IO page returned error %d handle=%p", | |
1263 | errno, xen_xc); | |
1264 | return -1; | |
1265 | } | |
1266 | ||
1267 | state->buffered_io_page = xenforeignmemory_map(xen_fmem, xen_domid, | |
1268 | PROT_READ | PROT_WRITE, | |
1269 | 1, &bufioreq_pfn, NULL); | |
1270 | if (state->buffered_io_page == NULL) { | |
1271 | error_report("map buffered IO page returned error %d", errno); | |
1272 | return -1; | |
1273 | } | |
1274 | ||
1275 | state->bufioreq_remote_port = bufioreq_evtchn; | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory) | |
1281 | { | |
1282 | int i, rc; | |
1283 | xen_pfn_t ioreq_pfn; | |
9ce94e7c AS |
1284 | XenIOState *state; |
1285 | ||
7267c094 | 1286 | state = g_malloc0(sizeof (XenIOState)); |
9ce94e7c | 1287 | |
a2db2a1e IC |
1288 | state->xce_handle = xenevtchn_open(NULL, 0); |
1289 | if (state->xce_handle == NULL) { | |
9ce94e7c | 1290 | perror("xen: event channel open"); |
dced4d2f | 1291 | goto err; |
9ce94e7c AS |
1292 | } |
1293 | ||
29321335 AP |
1294 | state->xenstore = xs_daemon_open(); |
1295 | if (state->xenstore == NULL) { | |
1296 | perror("xen: xenstore open"); | |
dced4d2f | 1297 | goto err; |
29321335 AP |
1298 | } |
1299 | ||
260cabed | 1300 | xen_create_ioreq_server(xen_domid, &state->ioservid); |
3996e85c | 1301 | |
9ce94e7c AS |
1302 | state->exit.notify = xen_exit_notifier; |
1303 | qemu_add_exit_notifier(&state->exit); | |
1304 | ||
da98c8eb GH |
1305 | state->suspend.notify = xen_suspend_notifier; |
1306 | qemu_register_suspend_notifier(&state->suspend); | |
1307 | ||
11addd0a LJ |
1308 | state->wakeup.notify = xen_wakeup_notifier; |
1309 | qemu_register_wakeup_notifier(&state->wakeup); | |
1310 | ||
71cec1ed | 1311 | rc = xen_map_ioreq_server(state); |
3996e85c | 1312 | if (rc < 0) { |
dced4d2f | 1313 | goto err; |
9ce94e7c AS |
1314 | } |
1315 | ||
37f9e258 DS |
1316 | rc = xen_get_vmport_regs_pfn(xen_xc, xen_domid, &ioreq_pfn); |
1317 | if (!rc) { | |
1318 | DPRINTF("shared vmport page at pfn %lx\n", ioreq_pfn); | |
1319 | state->shared_vmport_page = | |
e0cb42ae IC |
1320 | xenforeignmemory_map(xen_fmem, xen_domid, PROT_READ|PROT_WRITE, |
1321 | 1, &ioreq_pfn, NULL); | |
37f9e258 | 1322 | if (state->shared_vmport_page == NULL) { |
81daba58 IC |
1323 | error_report("map shared vmport IO page returned error %d handle=%p", |
1324 | errno, xen_xc); | |
dced4d2f | 1325 | goto err; |
37f9e258 DS |
1326 | } |
1327 | } else if (rc != -ENOSYS) { | |
dced4d2f MA |
1328 | error_report("get vmport regs pfn returned error %d, rc=%d", |
1329 | errno, rc); | |
1330 | goto err; | |
37f9e258 DS |
1331 | } |
1332 | ||
37f9e258 DS |
1333 | /* Note: cpus is empty at this point in init */ |
1334 | state->cpu_by_vcpu_id = g_malloc0(max_cpus * sizeof(CPUState *)); | |
1335 | ||
260cabed | 1336 | rc = xen_set_ioreq_server_state(xen_domid, state->ioservid, true); |
3996e85c | 1337 | if (rc < 0) { |
81daba58 | 1338 | error_report("failed to enable ioreq server info: error %d handle=%p", |
dced4d2f MA |
1339 | errno, xen_xc); |
1340 | goto err; | |
3996e85c PD |
1341 | } |
1342 | ||
1cd25a88 | 1343 | state->ioreq_local_port = g_malloc0(max_cpus * sizeof (evtchn_port_t)); |
9ce94e7c AS |
1344 | |
1345 | /* FIXME: how about if we overflow the page here? */ | |
1cd25a88 | 1346 | for (i = 0; i < max_cpus; i++) { |
a2db2a1e | 1347 | rc = xenevtchn_bind_interdomain(state->xce_handle, xen_domid, |
9ce94e7c AS |
1348 | xen_vcpu_eport(state->shared_page, i)); |
1349 | if (rc == -1) { | |
dced4d2f MA |
1350 | error_report("shared evtchn %d bind error %d", i, errno); |
1351 | goto err; | |
9ce94e7c AS |
1352 | } |
1353 | state->ioreq_local_port[i] = rc; | |
1354 | } | |
1355 | ||
a2db2a1e | 1356 | rc = xenevtchn_bind_interdomain(state->xce_handle, xen_domid, |
71cec1ed | 1357 | state->bufioreq_remote_port); |
fda1f768 | 1358 | if (rc == -1) { |
dced4d2f MA |
1359 | error_report("buffered evtchn bind error %d", errno); |
1360 | goto err; | |
fda1f768 SS |
1361 | } |
1362 | state->bufioreq_local_port = rc; | |
1363 | ||
432d268c | 1364 | /* Init RAM management */ |
331b5189 | 1365 | #ifdef XEN_COMPAT_PHYSMAP |
cd1ba7de | 1366 | xen_map_cache_init(xen_phys_offset_to_gaddr, state); |
331b5189 ID |
1367 | #else |
1368 | xen_map_cache_init(NULL, state); | |
1369 | #endif | |
91176e31 | 1370 | xen_ram_init(pcms, ram_size, ram_memory); |
432d268c | 1371 | |
fb4bb2b5 | 1372 | qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state); |
9ce94e7c | 1373 | |
20581d20 | 1374 | state->memory_listener = xen_memory_listener; |
f6790af6 | 1375 | memory_listener_register(&state->memory_listener, &address_space_memory); |
b4dd7802 AP |
1376 | state->log_for_dirtybit = NULL; |
1377 | ||
3996e85c PD |
1378 | state->io_listener = xen_io_listener; |
1379 | memory_listener_register(&state->io_listener, &address_space_io); | |
1380 | ||
1381 | state->device_listener = xen_device_listener; | |
1382 | device_listener_register(&state->device_listener); | |
1383 | ||
ad35a7da SS |
1384 | /* Initialize backend core & drivers */ |
1385 | if (xen_be_init() != 0) { | |
dced4d2f MA |
1386 | error_report("xen backend core setup failed"); |
1387 | goto err; | |
ad35a7da | 1388 | } |
0e39bb02 | 1389 | xen_be_register_common(); |
04a8f72e ID |
1390 | |
1391 | QLIST_INIT(&xen_physmap); | |
d1814e08 | 1392 | xen_read_physmap(state); |
804ba7c1 AP |
1393 | |
1394 | /* Disable ACPI build because Xen handles it */ | |
1395 | pcms->acpi_build_enabled = false; | |
1396 | ||
dced4d2f | 1397 | return; |
ad35a7da | 1398 | |
dced4d2f MA |
1399 | err: |
1400 | error_report("xen hardware virtual machine initialisation failed"); | |
1401 | exit(1); | |
29d3ccde | 1402 | } |
9ce94e7c | 1403 | |
180640ea | 1404 | void destroy_hvm_domain(bool reboot) |
9ce94e7c | 1405 | { |
81daba58 | 1406 | xc_interface *xc_handle; |
9ce94e7c | 1407 | int sts; |
6b47c2aa | 1408 | int rc; |
9ce94e7c | 1409 | |
74aae6bf IJ |
1410 | unsigned int reason = reboot ? SHUTDOWN_reboot : SHUTDOWN_poweroff; |
1411 | ||
6b47c2aa IJ |
1412 | if (xen_dmod) { |
1413 | rc = xendevicemodel_shutdown(xen_dmod, xen_domid, reason); | |
1414 | if (!rc) { | |
1415 | return; | |
1416 | } | |
1417 | if (errno != ENOTTY /* old Xen */) { | |
1418 | perror("xendevicemodel_shutdown failed"); | |
1419 | } | |
1420 | /* well, try the old thing then */ | |
1421 | } | |
1422 | ||
81daba58 IC |
1423 | xc_handle = xc_interface_open(0, 0, 0); |
1424 | if (xc_handle == NULL) { | |
9ce94e7c AS |
1425 | fprintf(stderr, "Cannot acquire xenctrl handle\n"); |
1426 | } else { | |
74aae6bf | 1427 | sts = xc_domain_shutdown(xc_handle, xen_domid, reason); |
9ce94e7c | 1428 | if (sts != 0) { |
180640ea JB |
1429 | fprintf(stderr, "xc_domain_shutdown failed to issue %s, " |
1430 | "sts %d, %s\n", reboot ? "reboot" : "poweroff", | |
1431 | sts, strerror(errno)); | |
9ce94e7c | 1432 | } else { |
180640ea JB |
1433 | fprintf(stderr, "Issued domain %d %s\n", xen_domid, |
1434 | reboot ? "reboot" : "poweroff"); | |
9ce94e7c AS |
1435 | } |
1436 | xc_interface_close(xc_handle); | |
1437 | } | |
1438 | } | |
c65adf9b AK |
1439 | |
1440 | void xen_register_framebuffer(MemoryRegion *mr) | |
1441 | { | |
1442 | framebuffer = mr; | |
1443 | } | |
eaab4d60 AK |
1444 | |
1445 | void xen_shutdown_fatal_error(const char *fmt, ...) | |
1446 | { | |
1447 | va_list ap; | |
1448 | ||
1449 | va_start(ap, fmt); | |
1450 | vfprintf(stderr, fmt, ap); | |
1451 | va_end(ap); | |
1452 | fprintf(stderr, "Will destroy the domain.\n"); | |
1453 | /* destroy the domain */ | |
cf83f140 | 1454 | qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_ERROR); |
eaab4d60 | 1455 | } |
910b38e4 | 1456 | |
5100afb5 | 1457 | void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length) |
910b38e4 AP |
1458 | { |
1459 | if (unlikely(xen_in_migration)) { | |
1460 | int rc; | |
1461 | ram_addr_t start_pfn, nb_pages; | |
1462 | ||
04a8f72e ID |
1463 | start = xen_phys_offset_to_gaddr(start, length); |
1464 | ||
910b38e4 AP |
1465 | if (length == 0) { |
1466 | length = TARGET_PAGE_SIZE; | |
1467 | } | |
1468 | start_pfn = start >> TARGET_PAGE_BITS; | |
1469 | nb_pages = ((start + length + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS) | |
1470 | - start_pfn; | |
8f25e754 | 1471 | rc = xen_modified_memory(xen_domid, start_pfn, nb_pages); |
910b38e4 AP |
1472 | if (rc) { |
1473 | fprintf(stderr, | |
1474 | "%s failed for "RAM_ADDR_FMT" ("RAM_ADDR_FMT"): %i, %s\n", | |
7cdcca72 | 1475 | __func__, start, nb_pages, errno, strerror(errno)); |
910b38e4 AP |
1476 | } |
1477 | } | |
1478 | } | |
04b0de0e WL |
1479 | |
1480 | void qmp_xen_set_global_dirty_log(bool enable, Error **errp) | |
1481 | { | |
1482 | if (enable) { | |
1483 | memory_global_dirty_log_start(); | |
1484 | } else { | |
1485 | memory_global_dirty_log_stop(); | |
1486 | } | |
1487 | } |