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05330448 AL |
1 | /* |
2 | * QEMU KVM support | |
3 | * | |
4 | * Copyright (C) 2006-2008 Qumranet Technologies | |
5 | * Copyright IBM, Corp. 2008 | |
6 | * | |
7 | * Authors: | |
8 | * Anthony Liguori <aliguori@us.ibm.com> | |
9 | * | |
10 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
11 | * See the COPYING file in the top-level directory. | |
12 | * | |
13 | */ | |
14 | ||
b6a0aa05 | 15 | #include "qemu/osdep.h" |
da34e65c | 16 | #include "qapi/error.h" |
05330448 | 17 | #include <sys/ioctl.h> |
25d2e361 | 18 | #include <sys/utsname.h> |
05330448 AL |
19 | |
20 | #include <linux/kvm.h> | |
5802e066 | 21 | #include <linux/kvm_para.h> |
05330448 AL |
22 | |
23 | #include "qemu-common.h" | |
33c11879 | 24 | #include "cpu.h" |
9c17d615 | 25 | #include "sysemu/sysemu.h" |
6410848b | 26 | #include "sysemu/kvm_int.h" |
1d31f66b | 27 | #include "kvm_i386.h" |
50efe82c AS |
28 | #include "hyperv.h" |
29 | ||
022c62cb | 30 | #include "exec/gdbstub.h" |
1de7afc9 PB |
31 | #include "qemu/host-utils.h" |
32 | #include "qemu/config-file.h" | |
1c4a55db | 33 | #include "qemu/error-report.h" |
0d09e41a PB |
34 | #include "hw/i386/pc.h" |
35 | #include "hw/i386/apic.h" | |
e0723c45 PB |
36 | #include "hw/i386/apic_internal.h" |
37 | #include "hw/i386/apic-msidef.h" | |
8b5ed7df | 38 | #include "hw/i386/intel_iommu.h" |
e1d4fb2d | 39 | #include "hw/i386/x86-iommu.h" |
50efe82c | 40 | |
022c62cb | 41 | #include "exec/ioport.h" |
73aa529a | 42 | #include "standard-headers/asm-x86/hyperv.h" |
a2cb15b0 | 43 | #include "hw/pci/pci.h" |
15eafc2e | 44 | #include "hw/pci/msi.h" |
68bfd0ad | 45 | #include "migration/migration.h" |
4c663752 | 46 | #include "exec/memattrs.h" |
8b5ed7df | 47 | #include "trace.h" |
05330448 AL |
48 | |
49 | //#define DEBUG_KVM | |
50 | ||
51 | #ifdef DEBUG_KVM | |
8c0d577e | 52 | #define DPRINTF(fmt, ...) \ |
05330448 AL |
53 | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
54 | #else | |
8c0d577e | 55 | #define DPRINTF(fmt, ...) \ |
05330448 AL |
56 | do { } while (0) |
57 | #endif | |
58 | ||
1a03675d GC |
59 | #define MSR_KVM_WALL_CLOCK 0x11 |
60 | #define MSR_KVM_SYSTEM_TIME 0x12 | |
61 | ||
d1138251 EH |
62 | /* A 4096-byte buffer can hold the 8-byte kvm_msrs header, plus |
63 | * 255 kvm_msr_entry structs */ | |
64 | #define MSR_BUF_SIZE 4096 | |
d71b62a1 | 65 | |
c0532a76 MT |
66 | #ifndef BUS_MCEERR_AR |
67 | #define BUS_MCEERR_AR 4 | |
68 | #endif | |
69 | #ifndef BUS_MCEERR_AO | |
70 | #define BUS_MCEERR_AO 5 | |
71 | #endif | |
72 | ||
94a8d39a JK |
73 | const KVMCapabilityInfo kvm_arch_required_capabilities[] = { |
74 | KVM_CAP_INFO(SET_TSS_ADDR), | |
75 | KVM_CAP_INFO(EXT_CPUID), | |
76 | KVM_CAP_INFO(MP_STATE), | |
77 | KVM_CAP_LAST_INFO | |
78 | }; | |
25d2e361 | 79 | |
c3a3a7d3 JK |
80 | static bool has_msr_star; |
81 | static bool has_msr_hsave_pa; | |
c9b8f6b6 | 82 | static bool has_msr_tsc_aux; |
f28558d3 | 83 | static bool has_msr_tsc_adjust; |
aa82ba54 | 84 | static bool has_msr_tsc_deadline; |
df67696e | 85 | static bool has_msr_feature_control; |
c5999bfc | 86 | static bool has_msr_async_pf_en; |
bc9a839d | 87 | static bool has_msr_pv_eoi_en; |
21e87c46 | 88 | static bool has_msr_misc_enable; |
fc12d72e | 89 | static bool has_msr_smbase; |
79e9ebeb | 90 | static bool has_msr_bndcfgs; |
917367aa | 91 | static bool has_msr_kvm_steal_time; |
25d2e361 | 92 | static int lm_capable_kernel; |
7bc3d711 PB |
93 | static bool has_msr_hv_hypercall; |
94 | static bool has_msr_hv_vapic; | |
48a5f3bc | 95 | static bool has_msr_hv_tsc; |
f2a53c9e | 96 | static bool has_msr_hv_crash; |
744b8a94 | 97 | static bool has_msr_hv_reset; |
8c145d7c | 98 | static bool has_msr_hv_vpindex; |
46eb8f98 | 99 | static bool has_msr_hv_runtime; |
866eea9a | 100 | static bool has_msr_hv_synic; |
ff99aa64 | 101 | static bool has_msr_hv_stimer; |
d1ae67f6 | 102 | static bool has_msr_mtrr; |
18cd2c17 | 103 | static bool has_msr_xss; |
b827df58 | 104 | |
0d894367 PB |
105 | static bool has_msr_architectural_pmu; |
106 | static uint32_t num_architectural_pmu_counters; | |
107 | ||
28143b40 TH |
108 | static int has_xsave; |
109 | static int has_xcrs; | |
110 | static int has_pit_state2; | |
111 | ||
87f8b626 AR |
112 | static bool has_msr_mcg_ext_ctl; |
113 | ||
494e95e9 CP |
114 | static struct kvm_cpuid2 *cpuid_cache; |
115 | ||
28143b40 TH |
116 | int kvm_has_pit_state2(void) |
117 | { | |
118 | return has_pit_state2; | |
119 | } | |
120 | ||
355023f2 PB |
121 | bool kvm_has_smm(void) |
122 | { | |
123 | return kvm_check_extension(kvm_state, KVM_CAP_X86_SMM); | |
124 | } | |
125 | ||
1d31f66b PM |
126 | bool kvm_allows_irq0_override(void) |
127 | { | |
128 | return !kvm_irqchip_in_kernel() || kvm_has_gsi_routing(); | |
129 | } | |
130 | ||
0fd7e098 LL |
131 | static int kvm_get_tsc(CPUState *cs) |
132 | { | |
133 | X86CPU *cpu = X86_CPU(cs); | |
134 | CPUX86State *env = &cpu->env; | |
135 | struct { | |
136 | struct kvm_msrs info; | |
137 | struct kvm_msr_entry entries[1]; | |
138 | } msr_data; | |
139 | int ret; | |
140 | ||
141 | if (env->tsc_valid) { | |
142 | return 0; | |
143 | } | |
144 | ||
145 | msr_data.info.nmsrs = 1; | |
146 | msr_data.entries[0].index = MSR_IA32_TSC; | |
147 | env->tsc_valid = !runstate_is_running(); | |
148 | ||
149 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_MSRS, &msr_data); | |
150 | if (ret < 0) { | |
151 | return ret; | |
152 | } | |
153 | ||
48e1a45c | 154 | assert(ret == 1); |
0fd7e098 LL |
155 | env->tsc = msr_data.entries[0].data; |
156 | return 0; | |
157 | } | |
158 | ||
159 | static inline void do_kvm_synchronize_tsc(void *arg) | |
160 | { | |
161 | CPUState *cpu = arg; | |
162 | ||
163 | kvm_get_tsc(cpu); | |
164 | } | |
165 | ||
166 | void kvm_synchronize_all_tsc(void) | |
167 | { | |
168 | CPUState *cpu; | |
169 | ||
170 | if (kvm_enabled()) { | |
171 | CPU_FOREACH(cpu) { | |
172 | run_on_cpu(cpu, do_kvm_synchronize_tsc, cpu); | |
173 | } | |
174 | } | |
175 | } | |
176 | ||
b827df58 AK |
177 | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
178 | { | |
179 | struct kvm_cpuid2 *cpuid; | |
180 | int r, size; | |
181 | ||
182 | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); | |
e42a92ae | 183 | cpuid = g_malloc0(size); |
b827df58 AK |
184 | cpuid->nent = max; |
185 | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); | |
76ae317f MM |
186 | if (r == 0 && cpuid->nent >= max) { |
187 | r = -E2BIG; | |
188 | } | |
b827df58 AK |
189 | if (r < 0) { |
190 | if (r == -E2BIG) { | |
7267c094 | 191 | g_free(cpuid); |
b827df58 AK |
192 | return NULL; |
193 | } else { | |
194 | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n", | |
195 | strerror(-r)); | |
196 | exit(1); | |
197 | } | |
198 | } | |
199 | return cpuid; | |
200 | } | |
201 | ||
dd87f8a6 EH |
202 | /* Run KVM_GET_SUPPORTED_CPUID ioctl(), allocating a buffer large enough |
203 | * for all entries. | |
204 | */ | |
205 | static struct kvm_cpuid2 *get_supported_cpuid(KVMState *s) | |
206 | { | |
207 | struct kvm_cpuid2 *cpuid; | |
208 | int max = 1; | |
494e95e9 CP |
209 | |
210 | if (cpuid_cache != NULL) { | |
211 | return cpuid_cache; | |
212 | } | |
dd87f8a6 EH |
213 | while ((cpuid = try_get_cpuid(s, max)) == NULL) { |
214 | max *= 2; | |
215 | } | |
494e95e9 | 216 | cpuid_cache = cpuid; |
dd87f8a6 EH |
217 | return cpuid; |
218 | } | |
219 | ||
a443bc34 | 220 | static const struct kvm_para_features { |
0c31b744 GC |
221 | int cap; |
222 | int feature; | |
223 | } para_features[] = { | |
224 | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, | |
225 | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, | |
226 | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, | |
0c31b744 | 227 | { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, |
0c31b744 GC |
228 | }; |
229 | ||
ba9bc59e | 230 | static int get_para_features(KVMState *s) |
0c31b744 GC |
231 | { |
232 | int i, features = 0; | |
233 | ||
8e03c100 | 234 | for (i = 0; i < ARRAY_SIZE(para_features); i++) { |
ba9bc59e | 235 | if (kvm_check_extension(s, para_features[i].cap)) { |
0c31b744 GC |
236 | features |= (1 << para_features[i].feature); |
237 | } | |
238 | } | |
239 | ||
240 | return features; | |
241 | } | |
0c31b744 GC |
242 | |
243 | ||
829ae2f9 EH |
244 | /* Returns the value for a specific register on the cpuid entry |
245 | */ | |
246 | static uint32_t cpuid_entry_get_reg(struct kvm_cpuid_entry2 *entry, int reg) | |
247 | { | |
248 | uint32_t ret = 0; | |
249 | switch (reg) { | |
250 | case R_EAX: | |
251 | ret = entry->eax; | |
252 | break; | |
253 | case R_EBX: | |
254 | ret = entry->ebx; | |
255 | break; | |
256 | case R_ECX: | |
257 | ret = entry->ecx; | |
258 | break; | |
259 | case R_EDX: | |
260 | ret = entry->edx; | |
261 | break; | |
262 | } | |
263 | return ret; | |
264 | } | |
265 | ||
4fb73f1d EH |
266 | /* Find matching entry for function/index on kvm_cpuid2 struct |
267 | */ | |
268 | static struct kvm_cpuid_entry2 *cpuid_find_entry(struct kvm_cpuid2 *cpuid, | |
269 | uint32_t function, | |
270 | uint32_t index) | |
271 | { | |
272 | int i; | |
273 | for (i = 0; i < cpuid->nent; ++i) { | |
274 | if (cpuid->entries[i].function == function && | |
275 | cpuid->entries[i].index == index) { | |
276 | return &cpuid->entries[i]; | |
277 | } | |
278 | } | |
279 | /* not found: */ | |
280 | return NULL; | |
281 | } | |
282 | ||
ba9bc59e | 283 | uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, |
c958a8bd | 284 | uint32_t index, int reg) |
b827df58 AK |
285 | { |
286 | struct kvm_cpuid2 *cpuid; | |
b827df58 AK |
287 | uint32_t ret = 0; |
288 | uint32_t cpuid_1_edx; | |
8c723b79 | 289 | bool found = false; |
b827df58 | 290 | |
dd87f8a6 | 291 | cpuid = get_supported_cpuid(s); |
b827df58 | 292 | |
4fb73f1d EH |
293 | struct kvm_cpuid_entry2 *entry = cpuid_find_entry(cpuid, function, index); |
294 | if (entry) { | |
295 | found = true; | |
296 | ret = cpuid_entry_get_reg(entry, reg); | |
b827df58 AK |
297 | } |
298 | ||
7b46e5ce EH |
299 | /* Fixups for the data returned by KVM, below */ |
300 | ||
c2acb022 EH |
301 | if (function == 1 && reg == R_EDX) { |
302 | /* KVM before 2.6.30 misreports the following features */ | |
303 | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; | |
84bd945c EH |
304 | } else if (function == 1 && reg == R_ECX) { |
305 | /* We can set the hypervisor flag, even if KVM does not return it on | |
306 | * GET_SUPPORTED_CPUID | |
307 | */ | |
308 | ret |= CPUID_EXT_HYPERVISOR; | |
ac67ee26 EH |
309 | /* tsc-deadline flag is not returned by GET_SUPPORTED_CPUID, but it |
310 | * can be enabled if the kernel has KVM_CAP_TSC_DEADLINE_TIMER, | |
311 | * and the irqchip is in the kernel. | |
312 | */ | |
313 | if (kvm_irqchip_in_kernel() && | |
314 | kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { | |
315 | ret |= CPUID_EXT_TSC_DEADLINE_TIMER; | |
316 | } | |
41e5e76d EH |
317 | |
318 | /* x2apic is reported by GET_SUPPORTED_CPUID, but it can't be enabled | |
319 | * without the in-kernel irqchip | |
320 | */ | |
321 | if (!kvm_irqchip_in_kernel()) { | |
322 | ret &= ~CPUID_EXT_X2APIC; | |
b827df58 | 323 | } |
28b8e4d0 JK |
324 | } else if (function == 6 && reg == R_EAX) { |
325 | ret |= CPUID_6_EAX_ARAT; /* safe to allow because of emulated APIC */ | |
c2acb022 EH |
326 | } else if (function == 0x80000001 && reg == R_EDX) { |
327 | /* On Intel, kvm returns cpuid according to the Intel spec, | |
328 | * so add missing bits according to the AMD spec: | |
329 | */ | |
330 | cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); | |
331 | ret |= cpuid_1_edx & CPUID_EXT2_AMD_ALIASES; | |
64877477 EH |
332 | } else if (function == KVM_CPUID_FEATURES && reg == R_EAX) { |
333 | /* kvm_pv_unhalt is reported by GET_SUPPORTED_CPUID, but it can't | |
334 | * be enabled without the in-kernel irqchip | |
335 | */ | |
336 | if (!kvm_irqchip_in_kernel()) { | |
337 | ret &= ~(1U << KVM_FEATURE_PV_UNHALT); | |
338 | } | |
b827df58 AK |
339 | } |
340 | ||
0c31b744 | 341 | /* fallback for older kernels */ |
8c723b79 | 342 | if ((function == KVM_CPUID_FEATURES) && !found) { |
ba9bc59e | 343 | ret = get_para_features(s); |
b9bec74b | 344 | } |
0c31b744 GC |
345 | |
346 | return ret; | |
bb0300dc | 347 | } |
bb0300dc | 348 | |
3c85e74f HY |
349 | typedef struct HWPoisonPage { |
350 | ram_addr_t ram_addr; | |
351 | QLIST_ENTRY(HWPoisonPage) list; | |
352 | } HWPoisonPage; | |
353 | ||
354 | static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list = | |
355 | QLIST_HEAD_INITIALIZER(hwpoison_page_list); | |
356 | ||
357 | static void kvm_unpoison_all(void *param) | |
358 | { | |
359 | HWPoisonPage *page, *next_page; | |
360 | ||
361 | QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) { | |
362 | QLIST_REMOVE(page, list); | |
363 | qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE); | |
7267c094 | 364 | g_free(page); |
3c85e74f HY |
365 | } |
366 | } | |
367 | ||
3c85e74f HY |
368 | static void kvm_hwpoison_page_add(ram_addr_t ram_addr) |
369 | { | |
370 | HWPoisonPage *page; | |
371 | ||
372 | QLIST_FOREACH(page, &hwpoison_page_list, list) { | |
373 | if (page->ram_addr == ram_addr) { | |
374 | return; | |
375 | } | |
376 | } | |
ab3ad07f | 377 | page = g_new(HWPoisonPage, 1); |
3c85e74f HY |
378 | page->ram_addr = ram_addr; |
379 | QLIST_INSERT_HEAD(&hwpoison_page_list, page, list); | |
380 | } | |
381 | ||
e7701825 MT |
382 | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
383 | int *max_banks) | |
384 | { | |
385 | int r; | |
386 | ||
14a09518 | 387 | r = kvm_check_extension(s, KVM_CAP_MCE); |
e7701825 MT |
388 | if (r > 0) { |
389 | *max_banks = r; | |
390 | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap); | |
391 | } | |
392 | return -ENOSYS; | |
393 | } | |
394 | ||
bee615d4 | 395 | static void kvm_mce_inject(X86CPU *cpu, hwaddr paddr, int code) |
e7701825 | 396 | { |
87f8b626 | 397 | CPUState *cs = CPU(cpu); |
bee615d4 | 398 | CPUX86State *env = &cpu->env; |
c34d440a JK |
399 | uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | |
400 | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S; | |
401 | uint64_t mcg_status = MCG_STATUS_MCIP; | |
87f8b626 | 402 | int flags = 0; |
e7701825 | 403 | |
c34d440a JK |
404 | if (code == BUS_MCEERR_AR) { |
405 | status |= MCI_STATUS_AR | 0x134; | |
406 | mcg_status |= MCG_STATUS_EIPV; | |
407 | } else { | |
408 | status |= 0xc0; | |
409 | mcg_status |= MCG_STATUS_RIPV; | |
419fb20a | 410 | } |
87f8b626 AR |
411 | |
412 | flags = cpu_x86_support_mca_broadcast(env) ? MCE_INJECT_BROADCAST : 0; | |
413 | /* We need to read back the value of MSR_EXT_MCG_CTL that was set by the | |
414 | * guest kernel back into env->mcg_ext_ctl. | |
415 | */ | |
416 | cpu_synchronize_state(cs); | |
417 | if (env->mcg_ext_ctl & MCG_EXT_CTL_LMCE_EN) { | |
418 | mcg_status |= MCG_STATUS_LMCE; | |
419 | flags = 0; | |
420 | } | |
421 | ||
8c5cf3b6 | 422 | cpu_x86_inject_mce(NULL, cpu, 9, status, mcg_status, paddr, |
87f8b626 | 423 | (MCM_ADDR_PHYS << 6) | 0xc, flags); |
419fb20a | 424 | } |
419fb20a JK |
425 | |
426 | static void hardware_memory_error(void) | |
427 | { | |
428 | fprintf(stderr, "Hardware memory error!\n"); | |
429 | exit(1); | |
430 | } | |
431 | ||
20d695a9 | 432 | int kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr) |
419fb20a | 433 | { |
20d695a9 AF |
434 | X86CPU *cpu = X86_CPU(c); |
435 | CPUX86State *env = &cpu->env; | |
419fb20a | 436 | ram_addr_t ram_addr; |
a8170e5e | 437 | hwaddr paddr; |
419fb20a JK |
438 | |
439 | if ((env->mcg_cap & MCG_SER_P) && addr | |
c34d440a | 440 | && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { |
07bdaa41 PB |
441 | ram_addr = qemu_ram_addr_from_host(addr); |
442 | if (ram_addr == RAM_ADDR_INVALID || | |
a60f24b5 | 443 | !kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) { |
419fb20a JK |
444 | fprintf(stderr, "Hardware memory error for memory used by " |
445 | "QEMU itself instead of guest system!\n"); | |
446 | /* Hope we are lucky for AO MCE */ | |
447 | if (code == BUS_MCEERR_AO) { | |
448 | return 0; | |
449 | } else { | |
450 | hardware_memory_error(); | |
451 | } | |
452 | } | |
3c85e74f | 453 | kvm_hwpoison_page_add(ram_addr); |
bee615d4 | 454 | kvm_mce_inject(cpu, paddr, code); |
e56ff191 | 455 | } else { |
419fb20a JK |
456 | if (code == BUS_MCEERR_AO) { |
457 | return 0; | |
458 | } else if (code == BUS_MCEERR_AR) { | |
459 | hardware_memory_error(); | |
460 | } else { | |
461 | return 1; | |
462 | } | |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
467 | int kvm_arch_on_sigbus(int code, void *addr) | |
468 | { | |
182735ef AF |
469 | X86CPU *cpu = X86_CPU(first_cpu); |
470 | ||
471 | if ((cpu->env.mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) { | |
419fb20a | 472 | ram_addr_t ram_addr; |
a8170e5e | 473 | hwaddr paddr; |
419fb20a JK |
474 | |
475 | /* Hope we are lucky for AO MCE */ | |
07bdaa41 PB |
476 | ram_addr = qemu_ram_addr_from_host(addr); |
477 | if (ram_addr == RAM_ADDR_INVALID || | |
182735ef | 478 | !kvm_physical_memory_addr_from_host(first_cpu->kvm_state, |
a60f24b5 | 479 | addr, &paddr)) { |
419fb20a JK |
480 | fprintf(stderr, "Hardware memory error for memory used by " |
481 | "QEMU itself instead of guest system!: %p\n", addr); | |
482 | return 0; | |
483 | } | |
3c85e74f | 484 | kvm_hwpoison_page_add(ram_addr); |
182735ef | 485 | kvm_mce_inject(X86_CPU(first_cpu), paddr, code); |
e56ff191 | 486 | } else { |
419fb20a JK |
487 | if (code == BUS_MCEERR_AO) { |
488 | return 0; | |
489 | } else if (code == BUS_MCEERR_AR) { | |
490 | hardware_memory_error(); | |
491 | } else { | |
492 | return 1; | |
493 | } | |
494 | } | |
495 | return 0; | |
496 | } | |
e7701825 | 497 | |
1bc22652 | 498 | static int kvm_inject_mce_oldstyle(X86CPU *cpu) |
ab443475 | 499 | { |
1bc22652 AF |
500 | CPUX86State *env = &cpu->env; |
501 | ||
ab443475 JK |
502 | if (!kvm_has_vcpu_events() && env->exception_injected == EXCP12_MCHK) { |
503 | unsigned int bank, bank_num = env->mcg_cap & 0xff; | |
504 | struct kvm_x86_mce mce; | |
505 | ||
506 | env->exception_injected = -1; | |
507 | ||
508 | /* | |
509 | * There must be at least one bank in use if an MCE is pending. | |
510 | * Find it and use its values for the event injection. | |
511 | */ | |
512 | for (bank = 0; bank < bank_num; bank++) { | |
513 | if (env->mce_banks[bank * 4 + 1] & MCI_STATUS_VAL) { | |
514 | break; | |
515 | } | |
516 | } | |
517 | assert(bank < bank_num); | |
518 | ||
519 | mce.bank = bank; | |
520 | mce.status = env->mce_banks[bank * 4 + 1]; | |
521 | mce.mcg_status = env->mcg_status; | |
522 | mce.addr = env->mce_banks[bank * 4 + 2]; | |
523 | mce.misc = env->mce_banks[bank * 4 + 3]; | |
524 | ||
1bc22652 | 525 | return kvm_vcpu_ioctl(CPU(cpu), KVM_X86_SET_MCE, &mce); |
ab443475 | 526 | } |
ab443475 JK |
527 | return 0; |
528 | } | |
529 | ||
1dfb4dd9 | 530 | static void cpu_update_state(void *opaque, int running, RunState state) |
b8cc45d6 | 531 | { |
317ac620 | 532 | CPUX86State *env = opaque; |
b8cc45d6 GC |
533 | |
534 | if (running) { | |
535 | env->tsc_valid = false; | |
536 | } | |
537 | } | |
538 | ||
83b17af5 | 539 | unsigned long kvm_arch_vcpu_id(CPUState *cs) |
b164e48e | 540 | { |
83b17af5 | 541 | X86CPU *cpu = X86_CPU(cs); |
7e72a45c | 542 | return cpu->apic_id; |
b164e48e EH |
543 | } |
544 | ||
92067bf4 IM |
545 | #ifndef KVM_CPUID_SIGNATURE_NEXT |
546 | #define KVM_CPUID_SIGNATURE_NEXT 0x40000100 | |
547 | #endif | |
548 | ||
549 | static bool hyperv_hypercall_available(X86CPU *cpu) | |
550 | { | |
551 | return cpu->hyperv_vapic || | |
552 | (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY); | |
553 | } | |
554 | ||
555 | static bool hyperv_enabled(X86CPU *cpu) | |
556 | { | |
7bc3d711 PB |
557 | CPUState *cs = CPU(cpu); |
558 | return kvm_check_extension(cs->kvm_state, KVM_CAP_HYPERV) > 0 && | |
559 | (hyperv_hypercall_available(cpu) || | |
48a5f3bc | 560 | cpu->hyperv_time || |
f2a53c9e | 561 | cpu->hyperv_relaxed_timing || |
744b8a94 | 562 | cpu->hyperv_crash || |
8c145d7c | 563 | cpu->hyperv_reset || |
46eb8f98 | 564 | cpu->hyperv_vpindex || |
866eea9a | 565 | cpu->hyperv_runtime || |
ff99aa64 AS |
566 | cpu->hyperv_synic || |
567 | cpu->hyperv_stimer); | |
92067bf4 IM |
568 | } |
569 | ||
5031283d HZ |
570 | static int kvm_arch_set_tsc_khz(CPUState *cs) |
571 | { | |
572 | X86CPU *cpu = X86_CPU(cs); | |
573 | CPUX86State *env = &cpu->env; | |
574 | int r; | |
575 | ||
576 | if (!env->tsc_khz) { | |
577 | return 0; | |
578 | } | |
579 | ||
580 | r = kvm_check_extension(cs->kvm_state, KVM_CAP_TSC_CONTROL) ? | |
581 | kvm_vcpu_ioctl(cs, KVM_SET_TSC_KHZ, env->tsc_khz) : | |
582 | -ENOTSUP; | |
583 | if (r < 0) { | |
584 | /* When KVM_SET_TSC_KHZ fails, it's an error only if the current | |
585 | * TSC frequency doesn't match the one we want. | |
586 | */ | |
587 | int cur_freq = kvm_check_extension(cs->kvm_state, KVM_CAP_GET_TSC_KHZ) ? | |
588 | kvm_vcpu_ioctl(cs, KVM_GET_TSC_KHZ) : | |
589 | -ENOTSUP; | |
590 | if (cur_freq <= 0 || cur_freq != env->tsc_khz) { | |
591 | error_report("warning: TSC frequency mismatch between " | |
d6276d26 EH |
592 | "VM (%" PRId64 " kHz) and host (%d kHz), " |
593 | "and TSC scaling unavailable", | |
594 | env->tsc_khz, cur_freq); | |
5031283d HZ |
595 | return r; |
596 | } | |
597 | } | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
c35bd19a EY |
602 | static int hyperv_handle_properties(CPUState *cs) |
603 | { | |
604 | X86CPU *cpu = X86_CPU(cs); | |
605 | CPUX86State *env = &cpu->env; | |
606 | ||
607 | if (cpu->hyperv_relaxed_timing) { | |
608 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_HYPERCALL_AVAILABLE; | |
609 | } | |
610 | if (cpu->hyperv_vapic) { | |
611 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_HYPERCALL_AVAILABLE; | |
612 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_APIC_ACCESS_AVAILABLE; | |
613 | has_msr_hv_vapic = true; | |
614 | } | |
615 | if (cpu->hyperv_time && | |
616 | kvm_check_extension(cs->kvm_state, KVM_CAP_HYPERV_TIME) > 0) { | |
617 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_HYPERCALL_AVAILABLE; | |
618 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_TIME_REF_COUNT_AVAILABLE; | |
619 | env->features[FEAT_HYPERV_EAX] |= 0x200; | |
620 | has_msr_hv_tsc = true; | |
621 | } | |
622 | if (cpu->hyperv_crash && has_msr_hv_crash) { | |
623 | env->features[FEAT_HYPERV_EDX] |= HV_X64_GUEST_CRASH_MSR_AVAILABLE; | |
624 | } | |
625 | env->features[FEAT_HYPERV_EDX] |= HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE; | |
626 | if (cpu->hyperv_reset && has_msr_hv_reset) { | |
627 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_RESET_AVAILABLE; | |
628 | } | |
629 | if (cpu->hyperv_vpindex && has_msr_hv_vpindex) { | |
630 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_VP_INDEX_AVAILABLE; | |
631 | } | |
632 | if (cpu->hyperv_runtime && has_msr_hv_runtime) { | |
633 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_VP_RUNTIME_AVAILABLE; | |
634 | } | |
635 | if (cpu->hyperv_synic) { | |
636 | int sint; | |
637 | ||
638 | if (!has_msr_hv_synic || | |
639 | kvm_vcpu_enable_cap(cs, KVM_CAP_HYPERV_SYNIC, 0)) { | |
640 | fprintf(stderr, "Hyper-V SynIC is not supported by kernel\n"); | |
641 | return -ENOSYS; | |
642 | } | |
643 | ||
644 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_SYNIC_AVAILABLE; | |
645 | env->msr_hv_synic_version = HV_SYNIC_VERSION_1; | |
646 | for (sint = 0; sint < ARRAY_SIZE(env->msr_hv_synic_sint); sint++) { | |
647 | env->msr_hv_synic_sint[sint] = HV_SYNIC_SINT_MASKED; | |
648 | } | |
649 | } | |
650 | if (cpu->hyperv_stimer) { | |
651 | if (!has_msr_hv_stimer) { | |
652 | fprintf(stderr, "Hyper-V timers aren't supported by kernel\n"); | |
653 | return -ENOSYS; | |
654 | } | |
655 | env->features[FEAT_HYPERV_EAX] |= HV_X64_MSR_SYNTIMER_AVAILABLE; | |
656 | } | |
657 | return 0; | |
658 | } | |
659 | ||
68bfd0ad MT |
660 | static Error *invtsc_mig_blocker; |
661 | ||
f8bb0565 | 662 | #define KVM_MAX_CPUID_ENTRIES 100 |
0893d460 | 663 | |
20d695a9 | 664 | int kvm_arch_init_vcpu(CPUState *cs) |
05330448 AL |
665 | { |
666 | struct { | |
486bd5a2 | 667 | struct kvm_cpuid2 cpuid; |
f8bb0565 | 668 | struct kvm_cpuid_entry2 entries[KVM_MAX_CPUID_ENTRIES]; |
541dc0d4 | 669 | } QEMU_PACKED cpuid_data; |
20d695a9 AF |
670 | X86CPU *cpu = X86_CPU(cs); |
671 | CPUX86State *env = &cpu->env; | |
486bd5a2 | 672 | uint32_t limit, i, j, cpuid_i; |
a33609ca | 673 | uint32_t unused; |
bb0300dc | 674 | struct kvm_cpuid_entry2 *c; |
bb0300dc | 675 | uint32_t signature[3]; |
234cc647 | 676 | int kvm_base = KVM_CPUID_SIGNATURE; |
e7429073 | 677 | int r; |
05330448 | 678 | |
ef4cbe14 SW |
679 | memset(&cpuid_data, 0, sizeof(cpuid_data)); |
680 | ||
05330448 AL |
681 | cpuid_i = 0; |
682 | ||
bb0300dc | 683 | /* Paravirtualization CPUIDs */ |
234cc647 PB |
684 | if (hyperv_enabled(cpu)) { |
685 | c = &cpuid_data.entries[cpuid_i++]; | |
686 | c->function = HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS; | |
1c4a55db AW |
687 | if (!cpu->hyperv_vendor_id) { |
688 | memcpy(signature, "Microsoft Hv", 12); | |
689 | } else { | |
690 | size_t len = strlen(cpu->hyperv_vendor_id); | |
691 | ||
692 | if (len > 12) { | |
693 | error_report("hv-vendor-id truncated to 12 characters"); | |
694 | len = 12; | |
695 | } | |
696 | memset(signature, 0, 12); | |
697 | memcpy(signature, cpu->hyperv_vendor_id, len); | |
698 | } | |
eab70139 | 699 | c->eax = HYPERV_CPUID_MIN; |
234cc647 PB |
700 | c->ebx = signature[0]; |
701 | c->ecx = signature[1]; | |
702 | c->edx = signature[2]; | |
0c31b744 | 703 | |
234cc647 PB |
704 | c = &cpuid_data.entries[cpuid_i++]; |
705 | c->function = HYPERV_CPUID_INTERFACE; | |
eab70139 VR |
706 | memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12); |
707 | c->eax = signature[0]; | |
234cc647 PB |
708 | c->ebx = 0; |
709 | c->ecx = 0; | |
710 | c->edx = 0; | |
eab70139 VR |
711 | |
712 | c = &cpuid_data.entries[cpuid_i++]; | |
eab70139 VR |
713 | c->function = HYPERV_CPUID_VERSION; |
714 | c->eax = 0x00001bbc; | |
715 | c->ebx = 0x00060001; | |
716 | ||
717 | c = &cpuid_data.entries[cpuid_i++]; | |
eab70139 | 718 | c->function = HYPERV_CPUID_FEATURES; |
c35bd19a EY |
719 | r = hyperv_handle_properties(cs); |
720 | if (r) { | |
721 | return r; | |
46eb8f98 | 722 | } |
c35bd19a EY |
723 | c->eax = env->features[FEAT_HYPERV_EAX]; |
724 | c->ebx = env->features[FEAT_HYPERV_EBX]; | |
725 | c->edx = env->features[FEAT_HYPERV_EDX]; | |
866eea9a | 726 | |
eab70139 | 727 | c = &cpuid_data.entries[cpuid_i++]; |
eab70139 | 728 | c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; |
92067bf4 | 729 | if (cpu->hyperv_relaxed_timing) { |
eab70139 VR |
730 | c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED; |
731 | } | |
7bc3d711 | 732 | if (has_msr_hv_vapic) { |
eab70139 VR |
733 | c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED; |
734 | } | |
92067bf4 | 735 | c->ebx = cpu->hyperv_spinlock_attempts; |
eab70139 VR |
736 | |
737 | c = &cpuid_data.entries[cpuid_i++]; | |
eab70139 VR |
738 | c->function = HYPERV_CPUID_IMPLEMENT_LIMITS; |
739 | c->eax = 0x40; | |
740 | c->ebx = 0x40; | |
741 | ||
234cc647 | 742 | kvm_base = KVM_CPUID_SIGNATURE_NEXT; |
7bc3d711 | 743 | has_msr_hv_hypercall = true; |
eab70139 VR |
744 | } |
745 | ||
f522d2ac AW |
746 | if (cpu->expose_kvm) { |
747 | memcpy(signature, "KVMKVMKVM\0\0\0", 12); | |
748 | c = &cpuid_data.entries[cpuid_i++]; | |
749 | c->function = KVM_CPUID_SIGNATURE | kvm_base; | |
79b6f2f6 | 750 | c->eax = KVM_CPUID_FEATURES | kvm_base; |
f522d2ac AW |
751 | c->ebx = signature[0]; |
752 | c->ecx = signature[1]; | |
753 | c->edx = signature[2]; | |
234cc647 | 754 | |
f522d2ac AW |
755 | c = &cpuid_data.entries[cpuid_i++]; |
756 | c->function = KVM_CPUID_FEATURES | kvm_base; | |
757 | c->eax = env->features[FEAT_KVM]; | |
234cc647 | 758 | |
f522d2ac | 759 | has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF); |
bb0300dc | 760 | |
f522d2ac | 761 | has_msr_pv_eoi_en = c->eax & (1 << KVM_FEATURE_PV_EOI); |
bc9a839d | 762 | |
f522d2ac AW |
763 | has_msr_kvm_steal_time = c->eax & (1 << KVM_FEATURE_STEAL_TIME); |
764 | } | |
917367aa | 765 | |
a33609ca | 766 | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
05330448 AL |
767 | |
768 | for (i = 0; i <= limit; i++) { | |
f8bb0565 IM |
769 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
770 | fprintf(stderr, "unsupported level value: 0x%x\n", limit); | |
771 | abort(); | |
772 | } | |
bb0300dc | 773 | c = &cpuid_data.entries[cpuid_i++]; |
486bd5a2 AL |
774 | |
775 | switch (i) { | |
a36b1029 AL |
776 | case 2: { |
777 | /* Keep reading function 2 till all the input is received */ | |
778 | int times; | |
779 | ||
a36b1029 | 780 | c->function = i; |
a33609ca AL |
781 | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
782 | KVM_CPUID_FLAG_STATE_READ_NEXT; | |
783 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); | |
784 | times = c->eax & 0xff; | |
a36b1029 AL |
785 | |
786 | for (j = 1; j < times; ++j) { | |
f8bb0565 IM |
787 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
788 | fprintf(stderr, "cpuid_data is full, no space for " | |
789 | "cpuid(eax:2):eax & 0xf = 0x%x\n", times); | |
790 | abort(); | |
791 | } | |
a33609ca | 792 | c = &cpuid_data.entries[cpuid_i++]; |
a36b1029 | 793 | c->function = i; |
a33609ca AL |
794 | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
795 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); | |
a36b1029 AL |
796 | } |
797 | break; | |
798 | } | |
486bd5a2 AL |
799 | case 4: |
800 | case 0xb: | |
801 | case 0xd: | |
802 | for (j = 0; ; j++) { | |
31e8c696 AP |
803 | if (i == 0xd && j == 64) { |
804 | break; | |
805 | } | |
486bd5a2 AL |
806 | c->function = i; |
807 | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; | |
808 | c->index = j; | |
a33609ca | 809 | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
486bd5a2 | 810 | |
b9bec74b | 811 | if (i == 4 && c->eax == 0) { |
486bd5a2 | 812 | break; |
b9bec74b JK |
813 | } |
814 | if (i == 0xb && !(c->ecx & 0xff00)) { | |
486bd5a2 | 815 | break; |
b9bec74b JK |
816 | } |
817 | if (i == 0xd && c->eax == 0) { | |
31e8c696 | 818 | continue; |
b9bec74b | 819 | } |
f8bb0565 IM |
820 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
821 | fprintf(stderr, "cpuid_data is full, no space for " | |
822 | "cpuid(eax:0x%x,ecx:0x%x)\n", i, j); | |
823 | abort(); | |
824 | } | |
a33609ca | 825 | c = &cpuid_data.entries[cpuid_i++]; |
486bd5a2 AL |
826 | } |
827 | break; | |
828 | default: | |
486bd5a2 | 829 | c->function = i; |
a33609ca AL |
830 | c->flags = 0; |
831 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); | |
486bd5a2 AL |
832 | break; |
833 | } | |
05330448 | 834 | } |
0d894367 PB |
835 | |
836 | if (limit >= 0x0a) { | |
837 | uint32_t ver; | |
838 | ||
839 | cpu_x86_cpuid(env, 0x0a, 0, &ver, &unused, &unused, &unused); | |
840 | if ((ver & 0xff) > 0) { | |
841 | has_msr_architectural_pmu = true; | |
842 | num_architectural_pmu_counters = (ver & 0xff00) >> 8; | |
843 | ||
844 | /* Shouldn't be more than 32, since that's the number of bits | |
845 | * available in EBX to tell us _which_ counters are available. | |
846 | * Play it safe. | |
847 | */ | |
848 | if (num_architectural_pmu_counters > MAX_GP_COUNTERS) { | |
849 | num_architectural_pmu_counters = MAX_GP_COUNTERS; | |
850 | } | |
851 | } | |
852 | } | |
853 | ||
a33609ca | 854 | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
05330448 AL |
855 | |
856 | for (i = 0x80000000; i <= limit; i++) { | |
f8bb0565 IM |
857 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
858 | fprintf(stderr, "unsupported xlevel value: 0x%x\n", limit); | |
859 | abort(); | |
860 | } | |
bb0300dc | 861 | c = &cpuid_data.entries[cpuid_i++]; |
05330448 | 862 | |
05330448 | 863 | c->function = i; |
a33609ca AL |
864 | c->flags = 0; |
865 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); | |
05330448 AL |
866 | } |
867 | ||
b3baa152 BW |
868 | /* Call Centaur's CPUID instructions they are supported. */ |
869 | if (env->cpuid_xlevel2 > 0) { | |
b3baa152 BW |
870 | cpu_x86_cpuid(env, 0xC0000000, 0, &limit, &unused, &unused, &unused); |
871 | ||
872 | for (i = 0xC0000000; i <= limit; i++) { | |
f8bb0565 IM |
873 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
874 | fprintf(stderr, "unsupported xlevel2 value: 0x%x\n", limit); | |
875 | abort(); | |
876 | } | |
b3baa152 BW |
877 | c = &cpuid_data.entries[cpuid_i++]; |
878 | ||
879 | c->function = i; | |
880 | c->flags = 0; | |
881 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); | |
882 | } | |
883 | } | |
884 | ||
05330448 AL |
885 | cpuid_data.cpuid.nent = cpuid_i; |
886 | ||
e7701825 | 887 | if (((env->cpuid_version >> 8)&0xF) >= 6 |
0514ef2f | 888 | && (env->features[FEAT_1_EDX] & (CPUID_MCE | CPUID_MCA)) == |
fc7a504c | 889 | (CPUID_MCE | CPUID_MCA) |
a60f24b5 | 890 | && kvm_check_extension(cs->kvm_state, KVM_CAP_MCE) > 0) { |
5120901a | 891 | uint64_t mcg_cap, unsupported_caps; |
e7701825 | 892 | int banks; |
32a42024 | 893 | int ret; |
e7701825 | 894 | |
a60f24b5 | 895 | ret = kvm_get_mce_cap_supported(cs->kvm_state, &mcg_cap, &banks); |
75d49497 JK |
896 | if (ret < 0) { |
897 | fprintf(stderr, "kvm_get_mce_cap_supported: %s", strerror(-ret)); | |
898 | return ret; | |
e7701825 | 899 | } |
75d49497 | 900 | |
2590f15b | 901 | if (banks < (env->mcg_cap & MCG_CAP_BANKS_MASK)) { |
49b69cbf | 902 | error_report("kvm: Unsupported MCE bank count (QEMU = %d, KVM = %d)", |
2590f15b | 903 | (int)(env->mcg_cap & MCG_CAP_BANKS_MASK), banks); |
49b69cbf | 904 | return -ENOTSUP; |
75d49497 | 905 | } |
49b69cbf | 906 | |
5120901a EH |
907 | unsupported_caps = env->mcg_cap & ~(mcg_cap | MCG_CAP_BANKS_MASK); |
908 | if (unsupported_caps) { | |
87f8b626 AR |
909 | if (unsupported_caps & MCG_LMCE_P) { |
910 | error_report("kvm: LMCE not supported"); | |
911 | return -ENOTSUP; | |
912 | } | |
5120901a EH |
913 | error_report("warning: Unsupported MCG_CAP bits: 0x%" PRIx64, |
914 | unsupported_caps); | |
915 | } | |
916 | ||
2590f15b EH |
917 | env->mcg_cap &= mcg_cap | MCG_CAP_BANKS_MASK; |
918 | ret = kvm_vcpu_ioctl(cs, KVM_X86_SETUP_MCE, &env->mcg_cap); | |
75d49497 JK |
919 | if (ret < 0) { |
920 | fprintf(stderr, "KVM_X86_SETUP_MCE: %s", strerror(-ret)); | |
921 | return ret; | |
922 | } | |
e7701825 | 923 | } |
e7701825 | 924 | |
b8cc45d6 GC |
925 | qemu_add_vm_change_state_handler(cpu_update_state, env); |
926 | ||
df67696e LJ |
927 | c = cpuid_find_entry(&cpuid_data.cpuid, 1, 0); |
928 | if (c) { | |
929 | has_msr_feature_control = !!(c->ecx & CPUID_EXT_VMX) || | |
930 | !!(c->ecx & CPUID_EXT_SMX); | |
931 | } | |
932 | ||
87f8b626 AR |
933 | if (env->mcg_cap & MCG_LMCE_P) { |
934 | has_msr_mcg_ext_ctl = has_msr_feature_control = true; | |
935 | } | |
936 | ||
68bfd0ad MT |
937 | c = cpuid_find_entry(&cpuid_data.cpuid, 0x80000007, 0); |
938 | if (c && (c->edx & 1<<8) && invtsc_mig_blocker == NULL) { | |
939 | /* for migration */ | |
940 | error_setg(&invtsc_mig_blocker, | |
941 | "State blocked by non-migratable CPU device" | |
942 | " (invtsc flag)"); | |
943 | migrate_add_blocker(invtsc_mig_blocker); | |
944 | /* for savevm */ | |
945 | vmstate_x86_cpu.unmigratable = 1; | |
946 | } | |
947 | ||
7e680753 | 948 | cpuid_data.cpuid.padding = 0; |
1bc22652 | 949 | r = kvm_vcpu_ioctl(cs, KVM_SET_CPUID2, &cpuid_data); |
fdc9c41a JK |
950 | if (r) { |
951 | return r; | |
952 | } | |
e7429073 | 953 | |
5031283d HZ |
954 | r = kvm_arch_set_tsc_khz(cs); |
955 | if (r < 0) { | |
956 | return r; | |
e7429073 | 957 | } |
e7429073 | 958 | |
bcffbeeb HZ |
959 | /* vcpu's TSC frequency is either specified by user, or following |
960 | * the value used by KVM if the former is not present. In the | |
961 | * latter case, we query it from KVM and record in env->tsc_khz, | |
962 | * so that vcpu's TSC frequency can be migrated later via this field. | |
963 | */ | |
964 | if (!env->tsc_khz) { | |
965 | r = kvm_check_extension(cs->kvm_state, KVM_CAP_GET_TSC_KHZ) ? | |
966 | kvm_vcpu_ioctl(cs, KVM_GET_TSC_KHZ) : | |
967 | -ENOTSUP; | |
968 | if (r > 0) { | |
969 | env->tsc_khz = r; | |
970 | } | |
971 | } | |
972 | ||
28143b40 | 973 | if (has_xsave) { |
fabacc0f JK |
974 | env->kvm_xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
975 | } | |
d71b62a1 | 976 | cpu->kvm_msr_buf = g_malloc0(MSR_BUF_SIZE); |
fabacc0f | 977 | |
d1ae67f6 AW |
978 | if (env->features[FEAT_1_EDX] & CPUID_MTRR) { |
979 | has_msr_mtrr = true; | |
980 | } | |
273c515c PB |
981 | if (!(env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_RDTSCP)) { |
982 | has_msr_tsc_aux = false; | |
983 | } | |
d1ae67f6 | 984 | |
e7429073 | 985 | return 0; |
05330448 AL |
986 | } |
987 | ||
50a2c6e5 | 988 | void kvm_arch_reset_vcpu(X86CPU *cpu) |
caa5af0f | 989 | { |
20d695a9 | 990 | CPUX86State *env = &cpu->env; |
dd673288 | 991 | |
e73223a5 | 992 | env->exception_injected = -1; |
0e607a80 | 993 | env->interrupt_injected = -1; |
1a5e9d2f | 994 | env->xcr0 = 1; |
ddced198 | 995 | if (kvm_irqchip_in_kernel()) { |
dd673288 | 996 | env->mp_state = cpu_is_bsp(cpu) ? KVM_MP_STATE_RUNNABLE : |
ddced198 MT |
997 | KVM_MP_STATE_UNINITIALIZED; |
998 | } else { | |
999 | env->mp_state = KVM_MP_STATE_RUNNABLE; | |
1000 | } | |
caa5af0f JK |
1001 | } |
1002 | ||
e0723c45 PB |
1003 | void kvm_arch_do_init_vcpu(X86CPU *cpu) |
1004 | { | |
1005 | CPUX86State *env = &cpu->env; | |
1006 | ||
1007 | /* APs get directly into wait-for-SIPI state. */ | |
1008 | if (env->mp_state == KVM_MP_STATE_UNINITIALIZED) { | |
1009 | env->mp_state = KVM_MP_STATE_INIT_RECEIVED; | |
1010 | } | |
1011 | } | |
1012 | ||
c3a3a7d3 | 1013 | static int kvm_get_supported_msrs(KVMState *s) |
05330448 | 1014 | { |
75b10c43 | 1015 | static int kvm_supported_msrs; |
c3a3a7d3 | 1016 | int ret = 0; |
05330448 AL |
1017 | |
1018 | /* first time */ | |
75b10c43 | 1019 | if (kvm_supported_msrs == 0) { |
05330448 AL |
1020 | struct kvm_msr_list msr_list, *kvm_msr_list; |
1021 | ||
75b10c43 | 1022 | kvm_supported_msrs = -1; |
05330448 AL |
1023 | |
1024 | /* Obtain MSR list from KVM. These are the MSRs that we must | |
1025 | * save/restore */ | |
4c9f7372 | 1026 | msr_list.nmsrs = 0; |
c3a3a7d3 | 1027 | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, &msr_list); |
6fb6d245 | 1028 | if (ret < 0 && ret != -E2BIG) { |
c3a3a7d3 | 1029 | return ret; |
6fb6d245 | 1030 | } |
d9db889f JK |
1031 | /* Old kernel modules had a bug and could write beyond the provided |
1032 | memory. Allocate at least a safe amount of 1K. */ | |
7267c094 | 1033 | kvm_msr_list = g_malloc0(MAX(1024, sizeof(msr_list) + |
d9db889f JK |
1034 | msr_list.nmsrs * |
1035 | sizeof(msr_list.indices[0]))); | |
05330448 | 1036 | |
55308450 | 1037 | kvm_msr_list->nmsrs = msr_list.nmsrs; |
c3a3a7d3 | 1038 | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
05330448 AL |
1039 | if (ret >= 0) { |
1040 | int i; | |
1041 | ||
1042 | for (i = 0; i < kvm_msr_list->nmsrs; i++) { | |
1043 | if (kvm_msr_list->indices[i] == MSR_STAR) { | |
c3a3a7d3 | 1044 | has_msr_star = true; |
75b10c43 MT |
1045 | continue; |
1046 | } | |
1047 | if (kvm_msr_list->indices[i] == MSR_VM_HSAVE_PA) { | |
c3a3a7d3 | 1048 | has_msr_hsave_pa = true; |
75b10c43 | 1049 | continue; |
05330448 | 1050 | } |
c9b8f6b6 AS |
1051 | if (kvm_msr_list->indices[i] == MSR_TSC_AUX) { |
1052 | has_msr_tsc_aux = true; | |
1053 | continue; | |
1054 | } | |
f28558d3 WA |
1055 | if (kvm_msr_list->indices[i] == MSR_TSC_ADJUST) { |
1056 | has_msr_tsc_adjust = true; | |
1057 | continue; | |
1058 | } | |
aa82ba54 LJ |
1059 | if (kvm_msr_list->indices[i] == MSR_IA32_TSCDEADLINE) { |
1060 | has_msr_tsc_deadline = true; | |
1061 | continue; | |
1062 | } | |
fc12d72e PB |
1063 | if (kvm_msr_list->indices[i] == MSR_IA32_SMBASE) { |
1064 | has_msr_smbase = true; | |
1065 | continue; | |
1066 | } | |
21e87c46 AK |
1067 | if (kvm_msr_list->indices[i] == MSR_IA32_MISC_ENABLE) { |
1068 | has_msr_misc_enable = true; | |
1069 | continue; | |
1070 | } | |
79e9ebeb LJ |
1071 | if (kvm_msr_list->indices[i] == MSR_IA32_BNDCFGS) { |
1072 | has_msr_bndcfgs = true; | |
1073 | continue; | |
1074 | } | |
18cd2c17 WL |
1075 | if (kvm_msr_list->indices[i] == MSR_IA32_XSS) { |
1076 | has_msr_xss = true; | |
1077 | continue; | |
1078 | } | |
f2a53c9e AS |
1079 | if (kvm_msr_list->indices[i] == HV_X64_MSR_CRASH_CTL) { |
1080 | has_msr_hv_crash = true; | |
1081 | continue; | |
1082 | } | |
744b8a94 AS |
1083 | if (kvm_msr_list->indices[i] == HV_X64_MSR_RESET) { |
1084 | has_msr_hv_reset = true; | |
1085 | continue; | |
1086 | } | |
8c145d7c AS |
1087 | if (kvm_msr_list->indices[i] == HV_X64_MSR_VP_INDEX) { |
1088 | has_msr_hv_vpindex = true; | |
1089 | continue; | |
1090 | } | |
46eb8f98 AS |
1091 | if (kvm_msr_list->indices[i] == HV_X64_MSR_VP_RUNTIME) { |
1092 | has_msr_hv_runtime = true; | |
1093 | continue; | |
1094 | } | |
866eea9a AS |
1095 | if (kvm_msr_list->indices[i] == HV_X64_MSR_SCONTROL) { |
1096 | has_msr_hv_synic = true; | |
1097 | continue; | |
1098 | } | |
ff99aa64 AS |
1099 | if (kvm_msr_list->indices[i] == HV_X64_MSR_STIMER0_CONFIG) { |
1100 | has_msr_hv_stimer = true; | |
1101 | continue; | |
1102 | } | |
05330448 AL |
1103 | } |
1104 | } | |
1105 | ||
7267c094 | 1106 | g_free(kvm_msr_list); |
05330448 AL |
1107 | } |
1108 | ||
c3a3a7d3 | 1109 | return ret; |
05330448 AL |
1110 | } |
1111 | ||
6410848b PB |
1112 | static Notifier smram_machine_done; |
1113 | static KVMMemoryListener smram_listener; | |
1114 | static AddressSpace smram_address_space; | |
1115 | static MemoryRegion smram_as_root; | |
1116 | static MemoryRegion smram_as_mem; | |
1117 | ||
1118 | static void register_smram_listener(Notifier *n, void *unused) | |
1119 | { | |
1120 | MemoryRegion *smram = | |
1121 | (MemoryRegion *) object_resolve_path("/machine/smram", NULL); | |
1122 | ||
1123 | /* Outer container... */ | |
1124 | memory_region_init(&smram_as_root, OBJECT(kvm_state), "mem-container-smram", ~0ull); | |
1125 | memory_region_set_enabled(&smram_as_root, true); | |
1126 | ||
1127 | /* ... with two regions inside: normal system memory with low | |
1128 | * priority, and... | |
1129 | */ | |
1130 | memory_region_init_alias(&smram_as_mem, OBJECT(kvm_state), "mem-smram", | |
1131 | get_system_memory(), 0, ~0ull); | |
1132 | memory_region_add_subregion_overlap(&smram_as_root, 0, &smram_as_mem, 0); | |
1133 | memory_region_set_enabled(&smram_as_mem, true); | |
1134 | ||
1135 | if (smram) { | |
1136 | /* ... SMRAM with higher priority */ | |
1137 | memory_region_add_subregion_overlap(&smram_as_root, 0, smram, 10); | |
1138 | memory_region_set_enabled(smram, true); | |
1139 | } | |
1140 | ||
1141 | address_space_init(&smram_address_space, &smram_as_root, "KVM-SMRAM"); | |
1142 | kvm_memory_listener_register(kvm_state, &smram_listener, | |
1143 | &smram_address_space, 1); | |
1144 | } | |
1145 | ||
b16565b3 | 1146 | int kvm_arch_init(MachineState *ms, KVMState *s) |
20420430 | 1147 | { |
11076198 | 1148 | uint64_t identity_base = 0xfffbc000; |
39d6960a | 1149 | uint64_t shadow_mem; |
20420430 | 1150 | int ret; |
25d2e361 | 1151 | struct utsname utsname; |
20420430 | 1152 | |
28143b40 TH |
1153 | #ifdef KVM_CAP_XSAVE |
1154 | has_xsave = kvm_check_extension(s, KVM_CAP_XSAVE); | |
1155 | #endif | |
1156 | ||
1157 | #ifdef KVM_CAP_XCRS | |
1158 | has_xcrs = kvm_check_extension(s, KVM_CAP_XCRS); | |
1159 | #endif | |
1160 | ||
1161 | #ifdef KVM_CAP_PIT_STATE2 | |
1162 | has_pit_state2 = kvm_check_extension(s, KVM_CAP_PIT_STATE2); | |
1163 | #endif | |
1164 | ||
c3a3a7d3 | 1165 | ret = kvm_get_supported_msrs(s); |
20420430 | 1166 | if (ret < 0) { |
20420430 SY |
1167 | return ret; |
1168 | } | |
25d2e361 MT |
1169 | |
1170 | uname(&utsname); | |
1171 | lm_capable_kernel = strcmp(utsname.machine, "x86_64") == 0; | |
1172 | ||
4c5b10b7 | 1173 | /* |
11076198 JK |
1174 | * On older Intel CPUs, KVM uses vm86 mode to emulate 16-bit code directly. |
1175 | * In order to use vm86 mode, an EPT identity map and a TSS are needed. | |
1176 | * Since these must be part of guest physical memory, we need to allocate | |
1177 | * them, both by setting their start addresses in the kernel and by | |
1178 | * creating a corresponding e820 entry. We need 4 pages before the BIOS. | |
1179 | * | |
1180 | * Older KVM versions may not support setting the identity map base. In | |
1181 | * that case we need to stick with the default, i.e. a 256K maximum BIOS | |
1182 | * size. | |
4c5b10b7 | 1183 | */ |
11076198 JK |
1184 | if (kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) { |
1185 | /* Allows up to 16M BIOSes. */ | |
1186 | identity_base = 0xfeffc000; | |
1187 | ||
1188 | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &identity_base); | |
1189 | if (ret < 0) { | |
1190 | return ret; | |
1191 | } | |
4c5b10b7 | 1192 | } |
e56ff191 | 1193 | |
11076198 JK |
1194 | /* Set TSS base one page after EPT identity map. */ |
1195 | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, identity_base + 0x1000); | |
20420430 SY |
1196 | if (ret < 0) { |
1197 | return ret; | |
1198 | } | |
1199 | ||
11076198 JK |
1200 | /* Tell fw_cfg to notify the BIOS to reserve the range. */ |
1201 | ret = e820_add_entry(identity_base, 0x4000, E820_RESERVED); | |
20420430 | 1202 | if (ret < 0) { |
11076198 | 1203 | fprintf(stderr, "e820_add_entry() table is full\n"); |
20420430 SY |
1204 | return ret; |
1205 | } | |
3c85e74f | 1206 | qemu_register_reset(kvm_unpoison_all, NULL); |
20420430 | 1207 | |
4689b77b | 1208 | shadow_mem = machine_kvm_shadow_mem(ms); |
36ad0e94 MA |
1209 | if (shadow_mem != -1) { |
1210 | shadow_mem /= 4096; | |
1211 | ret = kvm_vm_ioctl(s, KVM_SET_NR_MMU_PAGES, shadow_mem); | |
1212 | if (ret < 0) { | |
1213 | return ret; | |
39d6960a JK |
1214 | } |
1215 | } | |
6410848b PB |
1216 | |
1217 | if (kvm_check_extension(s, KVM_CAP_X86_SMM)) { | |
1218 | smram_machine_done.notify = register_smram_listener; | |
1219 | qemu_add_machine_init_done_notifier(&smram_machine_done); | |
1220 | } | |
11076198 | 1221 | return 0; |
05330448 | 1222 | } |
b9bec74b | 1223 | |
05330448 AL |
1224 | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
1225 | { | |
1226 | lhs->selector = rhs->selector; | |
1227 | lhs->base = rhs->base; | |
1228 | lhs->limit = rhs->limit; | |
1229 | lhs->type = 3; | |
1230 | lhs->present = 1; | |
1231 | lhs->dpl = 3; | |
1232 | lhs->db = 0; | |
1233 | lhs->s = 1; | |
1234 | lhs->l = 0; | |
1235 | lhs->g = 0; | |
1236 | lhs->avl = 0; | |
1237 | lhs->unusable = 0; | |
1238 | } | |
1239 | ||
1240 | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) | |
1241 | { | |
1242 | unsigned flags = rhs->flags; | |
1243 | lhs->selector = rhs->selector; | |
1244 | lhs->base = rhs->base; | |
1245 | lhs->limit = rhs->limit; | |
1246 | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15; | |
1247 | lhs->present = (flags & DESC_P_MASK) != 0; | |
acaa7550 | 1248 | lhs->dpl = (flags >> DESC_DPL_SHIFT) & 3; |
05330448 AL |
1249 | lhs->db = (flags >> DESC_B_SHIFT) & 1; |
1250 | lhs->s = (flags & DESC_S_MASK) != 0; | |
1251 | lhs->l = (flags >> DESC_L_SHIFT) & 1; | |
1252 | lhs->g = (flags & DESC_G_MASK) != 0; | |
1253 | lhs->avl = (flags & DESC_AVL_MASK) != 0; | |
4cae9c97 | 1254 | lhs->unusable = !lhs->present; |
7e680753 | 1255 | lhs->padding = 0; |
05330448 AL |
1256 | } |
1257 | ||
1258 | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) | |
1259 | { | |
1260 | lhs->selector = rhs->selector; | |
1261 | lhs->base = rhs->base; | |
1262 | lhs->limit = rhs->limit; | |
4cae9c97 MC |
1263 | if (rhs->unusable) { |
1264 | lhs->flags = 0; | |
1265 | } else { | |
1266 | lhs->flags = (rhs->type << DESC_TYPE_SHIFT) | | |
1267 | (rhs->present * DESC_P_MASK) | | |
1268 | (rhs->dpl << DESC_DPL_SHIFT) | | |
1269 | (rhs->db << DESC_B_SHIFT) | | |
1270 | (rhs->s * DESC_S_MASK) | | |
1271 | (rhs->l << DESC_L_SHIFT) | | |
1272 | (rhs->g * DESC_G_MASK) | | |
1273 | (rhs->avl * DESC_AVL_MASK); | |
1274 | } | |
05330448 AL |
1275 | } |
1276 | ||
1277 | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) | |
1278 | { | |
b9bec74b | 1279 | if (set) { |
05330448 | 1280 | *kvm_reg = *qemu_reg; |
b9bec74b | 1281 | } else { |
05330448 | 1282 | *qemu_reg = *kvm_reg; |
b9bec74b | 1283 | } |
05330448 AL |
1284 | } |
1285 | ||
1bc22652 | 1286 | static int kvm_getput_regs(X86CPU *cpu, int set) |
05330448 | 1287 | { |
1bc22652 | 1288 | CPUX86State *env = &cpu->env; |
05330448 AL |
1289 | struct kvm_regs regs; |
1290 | int ret = 0; | |
1291 | ||
1292 | if (!set) { | |
1bc22652 | 1293 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_REGS, ®s); |
b9bec74b | 1294 | if (ret < 0) { |
05330448 | 1295 | return ret; |
b9bec74b | 1296 | } |
05330448 AL |
1297 | } |
1298 | ||
1299 | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); | |
1300 | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); | |
1301 | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); | |
1302 | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); | |
1303 | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); | |
1304 | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); | |
1305 | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); | |
1306 | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); | |
1307 | #ifdef TARGET_X86_64 | |
1308 | kvm_getput_reg(®s.r8, &env->regs[8], set); | |
1309 | kvm_getput_reg(®s.r9, &env->regs[9], set); | |
1310 | kvm_getput_reg(®s.r10, &env->regs[10], set); | |
1311 | kvm_getput_reg(®s.r11, &env->regs[11], set); | |
1312 | kvm_getput_reg(®s.r12, &env->regs[12], set); | |
1313 | kvm_getput_reg(®s.r13, &env->regs[13], set); | |
1314 | kvm_getput_reg(®s.r14, &env->regs[14], set); | |
1315 | kvm_getput_reg(®s.r15, &env->regs[15], set); | |
1316 | #endif | |
1317 | ||
1318 | kvm_getput_reg(®s.rflags, &env->eflags, set); | |
1319 | kvm_getput_reg(®s.rip, &env->eip, set); | |
1320 | ||
b9bec74b | 1321 | if (set) { |
1bc22652 | 1322 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_REGS, ®s); |
b9bec74b | 1323 | } |
05330448 AL |
1324 | |
1325 | return ret; | |
1326 | } | |
1327 | ||
1bc22652 | 1328 | static int kvm_put_fpu(X86CPU *cpu) |
05330448 | 1329 | { |
1bc22652 | 1330 | CPUX86State *env = &cpu->env; |
05330448 AL |
1331 | struct kvm_fpu fpu; |
1332 | int i; | |
1333 | ||
1334 | memset(&fpu, 0, sizeof fpu); | |
1335 | fpu.fsw = env->fpus & ~(7 << 11); | |
1336 | fpu.fsw |= (env->fpstt & 7) << 11; | |
1337 | fpu.fcw = env->fpuc; | |
42cc8fa6 JK |
1338 | fpu.last_opcode = env->fpop; |
1339 | fpu.last_ip = env->fpip; | |
1340 | fpu.last_dp = env->fpdp; | |
b9bec74b JK |
1341 | for (i = 0; i < 8; ++i) { |
1342 | fpu.ftwx |= (!env->fptags[i]) << i; | |
1343 | } | |
05330448 | 1344 | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs); |
bee81887 | 1345 | for (i = 0; i < CPU_NB_REGS; i++) { |
19cbd87c EH |
1346 | stq_p(&fpu.xmm[i][0], env->xmm_regs[i].ZMM_Q(0)); |
1347 | stq_p(&fpu.xmm[i][8], env->xmm_regs[i].ZMM_Q(1)); | |
bee81887 | 1348 | } |
05330448 AL |
1349 | fpu.mxcsr = env->mxcsr; |
1350 | ||
1bc22652 | 1351 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_FPU, &fpu); |
05330448 AL |
1352 | } |
1353 | ||
6b42494b JK |
1354 | #define XSAVE_FCW_FSW 0 |
1355 | #define XSAVE_FTW_FOP 1 | |
f1665b21 SY |
1356 | #define XSAVE_CWD_RIP 2 |
1357 | #define XSAVE_CWD_RDP 4 | |
1358 | #define XSAVE_MXCSR 6 | |
1359 | #define XSAVE_ST_SPACE 8 | |
1360 | #define XSAVE_XMM_SPACE 40 | |
1361 | #define XSAVE_XSTATE_BV 128 | |
1362 | #define XSAVE_YMMH_SPACE 144 | |
79e9ebeb LJ |
1363 | #define XSAVE_BNDREGS 240 |
1364 | #define XSAVE_BNDCSR 256 | |
9aecd6f8 CP |
1365 | #define XSAVE_OPMASK 272 |
1366 | #define XSAVE_ZMM_Hi256 288 | |
1367 | #define XSAVE_Hi16_ZMM 416 | |
f74eefe0 | 1368 | #define XSAVE_PKRU 672 |
f1665b21 | 1369 | |
b503717d EH |
1370 | #define XSAVE_BYTE_OFFSET(word_offset) \ |
1371 | ((word_offset) * sizeof(((struct kvm_xsave *)0)->region[0])) | |
1372 | ||
1373 | #define ASSERT_OFFSET(word_offset, field) \ | |
1374 | QEMU_BUILD_BUG_ON(XSAVE_BYTE_OFFSET(word_offset) != \ | |
1375 | offsetof(X86XSaveArea, field)) | |
1376 | ||
1377 | ASSERT_OFFSET(XSAVE_FCW_FSW, legacy.fcw); | |
1378 | ASSERT_OFFSET(XSAVE_FTW_FOP, legacy.ftw); | |
1379 | ASSERT_OFFSET(XSAVE_CWD_RIP, legacy.fpip); | |
1380 | ASSERT_OFFSET(XSAVE_CWD_RDP, legacy.fpdp); | |
1381 | ASSERT_OFFSET(XSAVE_MXCSR, legacy.mxcsr); | |
1382 | ASSERT_OFFSET(XSAVE_ST_SPACE, legacy.fpregs); | |
1383 | ASSERT_OFFSET(XSAVE_XMM_SPACE, legacy.xmm_regs); | |
1384 | ASSERT_OFFSET(XSAVE_XSTATE_BV, header.xstate_bv); | |
1385 | ASSERT_OFFSET(XSAVE_YMMH_SPACE, avx_state); | |
1386 | ASSERT_OFFSET(XSAVE_BNDREGS, bndreg_state); | |
1387 | ASSERT_OFFSET(XSAVE_BNDCSR, bndcsr_state); | |
1388 | ASSERT_OFFSET(XSAVE_OPMASK, opmask_state); | |
1389 | ASSERT_OFFSET(XSAVE_ZMM_Hi256, zmm_hi256_state); | |
1390 | ASSERT_OFFSET(XSAVE_Hi16_ZMM, hi16_zmm_state); | |
1391 | ASSERT_OFFSET(XSAVE_PKRU, pkru_state); | |
1392 | ||
1bc22652 | 1393 | static int kvm_put_xsave(X86CPU *cpu) |
f1665b21 | 1394 | { |
1bc22652 | 1395 | CPUX86State *env = &cpu->env; |
86cd2ea0 | 1396 | X86XSaveArea *xsave = env->kvm_xsave_buf; |
42cc8fa6 | 1397 | uint16_t cwd, swd, twd; |
9be38598 | 1398 | int i; |
f1665b21 | 1399 | |
28143b40 | 1400 | if (!has_xsave) { |
1bc22652 | 1401 | return kvm_put_fpu(cpu); |
b9bec74b | 1402 | } |
f1665b21 | 1403 | |
f1665b21 | 1404 | memset(xsave, 0, sizeof(struct kvm_xsave)); |
6115c0a8 | 1405 | twd = 0; |
f1665b21 SY |
1406 | swd = env->fpus & ~(7 << 11); |
1407 | swd |= (env->fpstt & 7) << 11; | |
1408 | cwd = env->fpuc; | |
b9bec74b | 1409 | for (i = 0; i < 8; ++i) { |
f1665b21 | 1410 | twd |= (!env->fptags[i]) << i; |
b9bec74b | 1411 | } |
86cd2ea0 EH |
1412 | xsave->legacy.fcw = cwd; |
1413 | xsave->legacy.fsw = swd; | |
1414 | xsave->legacy.ftw = twd; | |
1415 | xsave->legacy.fpop = env->fpop; | |
1416 | xsave->legacy.fpip = env->fpip; | |
1417 | xsave->legacy.fpdp = env->fpdp; | |
1418 | memcpy(&xsave->legacy.fpregs, env->fpregs, | |
f1665b21 | 1419 | sizeof env->fpregs); |
86cd2ea0 EH |
1420 | xsave->legacy.mxcsr = env->mxcsr; |
1421 | xsave->header.xstate_bv = env->xstate_bv; | |
1422 | memcpy(&xsave->bndreg_state.bnd_regs, env->bnd_regs, | |
79e9ebeb | 1423 | sizeof env->bnd_regs); |
86cd2ea0 EH |
1424 | xsave->bndcsr_state.bndcsr = env->bndcs_regs; |
1425 | memcpy(&xsave->opmask_state.opmask_regs, env->opmask_regs, | |
9aecd6f8 | 1426 | sizeof env->opmask_regs); |
bee81887 | 1427 | |
86cd2ea0 EH |
1428 | for (i = 0; i < CPU_NB_REGS; i++) { |
1429 | uint8_t *xmm = xsave->legacy.xmm_regs[i]; | |
1430 | uint8_t *ymmh = xsave->avx_state.ymmh[i]; | |
1431 | uint8_t *zmmh = xsave->zmm_hi256_state.zmm_hi256[i]; | |
19cbd87c EH |
1432 | stq_p(xmm, env->xmm_regs[i].ZMM_Q(0)); |
1433 | stq_p(xmm+8, env->xmm_regs[i].ZMM_Q(1)); | |
1434 | stq_p(ymmh, env->xmm_regs[i].ZMM_Q(2)); | |
1435 | stq_p(ymmh+8, env->xmm_regs[i].ZMM_Q(3)); | |
1436 | stq_p(zmmh, env->xmm_regs[i].ZMM_Q(4)); | |
1437 | stq_p(zmmh+8, env->xmm_regs[i].ZMM_Q(5)); | |
1438 | stq_p(zmmh+16, env->xmm_regs[i].ZMM_Q(6)); | |
1439 | stq_p(zmmh+24, env->xmm_regs[i].ZMM_Q(7)); | |
bee81887 PB |
1440 | } |
1441 | ||
9aecd6f8 | 1442 | #ifdef TARGET_X86_64 |
86cd2ea0 | 1443 | memcpy(&xsave->hi16_zmm_state.hi16_zmm, &env->xmm_regs[16], |
b7711471 | 1444 | 16 * sizeof env->xmm_regs[16]); |
86cd2ea0 | 1445 | memcpy(&xsave->pkru_state, &env->pkru, sizeof env->pkru); |
9aecd6f8 | 1446 | #endif |
9be38598 | 1447 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XSAVE, xsave); |
f1665b21 SY |
1448 | } |
1449 | ||
1bc22652 | 1450 | static int kvm_put_xcrs(X86CPU *cpu) |
f1665b21 | 1451 | { |
1bc22652 | 1452 | CPUX86State *env = &cpu->env; |
bdfc8480 | 1453 | struct kvm_xcrs xcrs = {}; |
f1665b21 | 1454 | |
28143b40 | 1455 | if (!has_xcrs) { |
f1665b21 | 1456 | return 0; |
b9bec74b | 1457 | } |
f1665b21 SY |
1458 | |
1459 | xcrs.nr_xcrs = 1; | |
1460 | xcrs.flags = 0; | |
1461 | xcrs.xcrs[0].xcr = 0; | |
1462 | xcrs.xcrs[0].value = env->xcr0; | |
1bc22652 | 1463 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XCRS, &xcrs); |
f1665b21 SY |
1464 | } |
1465 | ||
1bc22652 | 1466 | static int kvm_put_sregs(X86CPU *cpu) |
05330448 | 1467 | { |
1bc22652 | 1468 | CPUX86State *env = &cpu->env; |
05330448 AL |
1469 | struct kvm_sregs sregs; |
1470 | ||
0e607a80 JK |
1471 | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
1472 | if (env->interrupt_injected >= 0) { | |
1473 | sregs.interrupt_bitmap[env->interrupt_injected / 64] |= | |
1474 | (uint64_t)1 << (env->interrupt_injected % 64); | |
1475 | } | |
05330448 AL |
1476 | |
1477 | if ((env->eflags & VM_MASK)) { | |
b9bec74b JK |
1478 | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
1479 | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); | |
1480 | set_v8086_seg(&sregs.es, &env->segs[R_ES]); | |
1481 | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); | |
1482 | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); | |
1483 | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); | |
05330448 | 1484 | } else { |
b9bec74b JK |
1485 | set_seg(&sregs.cs, &env->segs[R_CS]); |
1486 | set_seg(&sregs.ds, &env->segs[R_DS]); | |
1487 | set_seg(&sregs.es, &env->segs[R_ES]); | |
1488 | set_seg(&sregs.fs, &env->segs[R_FS]); | |
1489 | set_seg(&sregs.gs, &env->segs[R_GS]); | |
1490 | set_seg(&sregs.ss, &env->segs[R_SS]); | |
05330448 AL |
1491 | } |
1492 | ||
1493 | set_seg(&sregs.tr, &env->tr); | |
1494 | set_seg(&sregs.ldt, &env->ldt); | |
1495 | ||
1496 | sregs.idt.limit = env->idt.limit; | |
1497 | sregs.idt.base = env->idt.base; | |
7e680753 | 1498 | memset(sregs.idt.padding, 0, sizeof sregs.idt.padding); |
05330448 AL |
1499 | sregs.gdt.limit = env->gdt.limit; |
1500 | sregs.gdt.base = env->gdt.base; | |
7e680753 | 1501 | memset(sregs.gdt.padding, 0, sizeof sregs.gdt.padding); |
05330448 AL |
1502 | |
1503 | sregs.cr0 = env->cr[0]; | |
1504 | sregs.cr2 = env->cr[2]; | |
1505 | sregs.cr3 = env->cr[3]; | |
1506 | sregs.cr4 = env->cr[4]; | |
1507 | ||
02e51483 CF |
1508 | sregs.cr8 = cpu_get_apic_tpr(cpu->apic_state); |
1509 | sregs.apic_base = cpu_get_apic_base(cpu->apic_state); | |
05330448 AL |
1510 | |
1511 | sregs.efer = env->efer; | |
1512 | ||
1bc22652 | 1513 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_SREGS, &sregs); |
05330448 AL |
1514 | } |
1515 | ||
d71b62a1 EH |
1516 | static void kvm_msr_buf_reset(X86CPU *cpu) |
1517 | { | |
1518 | memset(cpu->kvm_msr_buf, 0, MSR_BUF_SIZE); | |
1519 | } | |
1520 | ||
9c600a84 EH |
1521 | static void kvm_msr_entry_add(X86CPU *cpu, uint32_t index, uint64_t value) |
1522 | { | |
1523 | struct kvm_msrs *msrs = cpu->kvm_msr_buf; | |
1524 | void *limit = ((void *)msrs) + MSR_BUF_SIZE; | |
1525 | struct kvm_msr_entry *entry = &msrs->entries[msrs->nmsrs]; | |
1526 | ||
1527 | assert((void *)(entry + 1) <= limit); | |
1528 | ||
1abc2cae EH |
1529 | entry->index = index; |
1530 | entry->reserved = 0; | |
1531 | entry->data = value; | |
9c600a84 EH |
1532 | msrs->nmsrs++; |
1533 | } | |
1534 | ||
73e1b8f2 PB |
1535 | static int kvm_put_one_msr(X86CPU *cpu, int index, uint64_t value) |
1536 | { | |
1537 | kvm_msr_buf_reset(cpu); | |
1538 | kvm_msr_entry_add(cpu, index, value); | |
1539 | ||
1540 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, cpu->kvm_msr_buf); | |
1541 | } | |
1542 | ||
f8d9ccf8 DDAG |
1543 | void kvm_put_apicbase(X86CPU *cpu, uint64_t value) |
1544 | { | |
1545 | int ret; | |
1546 | ||
1547 | ret = kvm_put_one_msr(cpu, MSR_IA32_APICBASE, value); | |
1548 | assert(ret == 1); | |
1549 | } | |
1550 | ||
7477cd38 MT |
1551 | static int kvm_put_tscdeadline_msr(X86CPU *cpu) |
1552 | { | |
1553 | CPUX86State *env = &cpu->env; | |
48e1a45c | 1554 | int ret; |
7477cd38 MT |
1555 | |
1556 | if (!has_msr_tsc_deadline) { | |
1557 | return 0; | |
1558 | } | |
1559 | ||
73e1b8f2 | 1560 | ret = kvm_put_one_msr(cpu, MSR_IA32_TSCDEADLINE, env->tsc_deadline); |
48e1a45c PB |
1561 | if (ret < 0) { |
1562 | return ret; | |
1563 | } | |
1564 | ||
1565 | assert(ret == 1); | |
1566 | return 0; | |
7477cd38 MT |
1567 | } |
1568 | ||
6bdf863d JK |
1569 | /* |
1570 | * Provide a separate write service for the feature control MSR in order to | |
1571 | * kick the VCPU out of VMXON or even guest mode on reset. This has to be done | |
1572 | * before writing any other state because forcibly leaving nested mode | |
1573 | * invalidates the VCPU state. | |
1574 | */ | |
1575 | static int kvm_put_msr_feature_control(X86CPU *cpu) | |
1576 | { | |
48e1a45c PB |
1577 | int ret; |
1578 | ||
1579 | if (!has_msr_feature_control) { | |
1580 | return 0; | |
1581 | } | |
6bdf863d | 1582 | |
73e1b8f2 PB |
1583 | ret = kvm_put_one_msr(cpu, MSR_IA32_FEATURE_CONTROL, |
1584 | cpu->env.msr_ia32_feature_control); | |
48e1a45c PB |
1585 | if (ret < 0) { |
1586 | return ret; | |
1587 | } | |
1588 | ||
1589 | assert(ret == 1); | |
1590 | return 0; | |
6bdf863d JK |
1591 | } |
1592 | ||
1bc22652 | 1593 | static int kvm_put_msrs(X86CPU *cpu, int level) |
05330448 | 1594 | { |
1bc22652 | 1595 | CPUX86State *env = &cpu->env; |
9c600a84 | 1596 | int i; |
48e1a45c | 1597 | int ret; |
05330448 | 1598 | |
d71b62a1 EH |
1599 | kvm_msr_buf_reset(cpu); |
1600 | ||
9c600a84 EH |
1601 | kvm_msr_entry_add(cpu, MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
1602 | kvm_msr_entry_add(cpu, MSR_IA32_SYSENTER_ESP, env->sysenter_esp); | |
1603 | kvm_msr_entry_add(cpu, MSR_IA32_SYSENTER_EIP, env->sysenter_eip); | |
1604 | kvm_msr_entry_add(cpu, MSR_PAT, env->pat); | |
c3a3a7d3 | 1605 | if (has_msr_star) { |
9c600a84 | 1606 | kvm_msr_entry_add(cpu, MSR_STAR, env->star); |
b9bec74b | 1607 | } |
c3a3a7d3 | 1608 | if (has_msr_hsave_pa) { |
9c600a84 | 1609 | kvm_msr_entry_add(cpu, MSR_VM_HSAVE_PA, env->vm_hsave); |
b9bec74b | 1610 | } |
c9b8f6b6 | 1611 | if (has_msr_tsc_aux) { |
9c600a84 | 1612 | kvm_msr_entry_add(cpu, MSR_TSC_AUX, env->tsc_aux); |
c9b8f6b6 | 1613 | } |
f28558d3 | 1614 | if (has_msr_tsc_adjust) { |
9c600a84 | 1615 | kvm_msr_entry_add(cpu, MSR_TSC_ADJUST, env->tsc_adjust); |
f28558d3 | 1616 | } |
21e87c46 | 1617 | if (has_msr_misc_enable) { |
9c600a84 | 1618 | kvm_msr_entry_add(cpu, MSR_IA32_MISC_ENABLE, |
21e87c46 AK |
1619 | env->msr_ia32_misc_enable); |
1620 | } | |
fc12d72e | 1621 | if (has_msr_smbase) { |
9c600a84 | 1622 | kvm_msr_entry_add(cpu, MSR_IA32_SMBASE, env->smbase); |
fc12d72e | 1623 | } |
439d19f2 | 1624 | if (has_msr_bndcfgs) { |
9c600a84 | 1625 | kvm_msr_entry_add(cpu, MSR_IA32_BNDCFGS, env->msr_bndcfgs); |
439d19f2 | 1626 | } |
18cd2c17 | 1627 | if (has_msr_xss) { |
9c600a84 | 1628 | kvm_msr_entry_add(cpu, MSR_IA32_XSS, env->xss); |
18cd2c17 | 1629 | } |
05330448 | 1630 | #ifdef TARGET_X86_64 |
25d2e361 | 1631 | if (lm_capable_kernel) { |
9c600a84 EH |
1632 | kvm_msr_entry_add(cpu, MSR_CSTAR, env->cstar); |
1633 | kvm_msr_entry_add(cpu, MSR_KERNELGSBASE, env->kernelgsbase); | |
1634 | kvm_msr_entry_add(cpu, MSR_FMASK, env->fmask); | |
1635 | kvm_msr_entry_add(cpu, MSR_LSTAR, env->lstar); | |
25d2e361 | 1636 | } |
05330448 | 1637 | #endif |
ff5c186b | 1638 | /* |
0d894367 PB |
1639 | * The following MSRs have side effects on the guest or are too heavy |
1640 | * for normal writeback. Limit them to reset or full state updates. | |
ff5c186b JK |
1641 | */ |
1642 | if (level >= KVM_PUT_RESET_STATE) { | |
9c600a84 EH |
1643 | kvm_msr_entry_add(cpu, MSR_IA32_TSC, env->tsc); |
1644 | kvm_msr_entry_add(cpu, MSR_KVM_SYSTEM_TIME, env->system_time_msr); | |
1645 | kvm_msr_entry_add(cpu, MSR_KVM_WALL_CLOCK, env->wall_clock_msr); | |
c5999bfc | 1646 | if (has_msr_async_pf_en) { |
9c600a84 | 1647 | kvm_msr_entry_add(cpu, MSR_KVM_ASYNC_PF_EN, env->async_pf_en_msr); |
c5999bfc | 1648 | } |
bc9a839d | 1649 | if (has_msr_pv_eoi_en) { |
9c600a84 | 1650 | kvm_msr_entry_add(cpu, MSR_KVM_PV_EOI_EN, env->pv_eoi_en_msr); |
bc9a839d | 1651 | } |
917367aa | 1652 | if (has_msr_kvm_steal_time) { |
9c600a84 | 1653 | kvm_msr_entry_add(cpu, MSR_KVM_STEAL_TIME, env->steal_time_msr); |
917367aa | 1654 | } |
0d894367 PB |
1655 | if (has_msr_architectural_pmu) { |
1656 | /* Stop the counter. */ | |
9c600a84 EH |
1657 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_FIXED_CTR_CTRL, 0); |
1658 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_CTRL, 0); | |
0d894367 PB |
1659 | |
1660 | /* Set the counter values. */ | |
1661 | for (i = 0; i < MAX_FIXED_COUNTERS; i++) { | |
9c600a84 | 1662 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_FIXED_CTR0 + i, |
0d894367 PB |
1663 | env->msr_fixed_counters[i]); |
1664 | } | |
1665 | for (i = 0; i < num_architectural_pmu_counters; i++) { | |
9c600a84 | 1666 | kvm_msr_entry_add(cpu, MSR_P6_PERFCTR0 + i, |
0d894367 | 1667 | env->msr_gp_counters[i]); |
9c600a84 | 1668 | kvm_msr_entry_add(cpu, MSR_P6_EVNTSEL0 + i, |
0d894367 PB |
1669 | env->msr_gp_evtsel[i]); |
1670 | } | |
9c600a84 | 1671 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_STATUS, |
0d894367 | 1672 | env->msr_global_status); |
9c600a84 | 1673 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_OVF_CTRL, |
0d894367 PB |
1674 | env->msr_global_ovf_ctrl); |
1675 | ||
1676 | /* Now start the PMU. */ | |
9c600a84 | 1677 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_FIXED_CTR_CTRL, |
0d894367 | 1678 | env->msr_fixed_ctr_ctrl); |
9c600a84 | 1679 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_CTRL, |
0d894367 PB |
1680 | env->msr_global_ctrl); |
1681 | } | |
7bc3d711 | 1682 | if (has_msr_hv_hypercall) { |
9c600a84 | 1683 | kvm_msr_entry_add(cpu, HV_X64_MSR_GUEST_OS_ID, |
1c90ef26 | 1684 | env->msr_hv_guest_os_id); |
9c600a84 | 1685 | kvm_msr_entry_add(cpu, HV_X64_MSR_HYPERCALL, |
1c90ef26 | 1686 | env->msr_hv_hypercall); |
eab70139 | 1687 | } |
7bc3d711 | 1688 | if (has_msr_hv_vapic) { |
9c600a84 | 1689 | kvm_msr_entry_add(cpu, HV_X64_MSR_APIC_ASSIST_PAGE, |
5ef68987 | 1690 | env->msr_hv_vapic); |
eab70139 | 1691 | } |
48a5f3bc | 1692 | if (has_msr_hv_tsc) { |
9c600a84 | 1693 | kvm_msr_entry_add(cpu, HV_X64_MSR_REFERENCE_TSC, env->msr_hv_tsc); |
48a5f3bc | 1694 | } |
f2a53c9e AS |
1695 | if (has_msr_hv_crash) { |
1696 | int j; | |
1697 | ||
1698 | for (j = 0; j < HV_X64_MSR_CRASH_PARAMS; j++) | |
9c600a84 | 1699 | kvm_msr_entry_add(cpu, HV_X64_MSR_CRASH_P0 + j, |
f2a53c9e AS |
1700 | env->msr_hv_crash_params[j]); |
1701 | ||
9c600a84 | 1702 | kvm_msr_entry_add(cpu, HV_X64_MSR_CRASH_CTL, |
f2a53c9e AS |
1703 | HV_X64_MSR_CRASH_CTL_NOTIFY); |
1704 | } | |
46eb8f98 | 1705 | if (has_msr_hv_runtime) { |
9c600a84 | 1706 | kvm_msr_entry_add(cpu, HV_X64_MSR_VP_RUNTIME, env->msr_hv_runtime); |
46eb8f98 | 1707 | } |
866eea9a AS |
1708 | if (cpu->hyperv_synic) { |
1709 | int j; | |
1710 | ||
9c600a84 | 1711 | kvm_msr_entry_add(cpu, HV_X64_MSR_SCONTROL, |
866eea9a | 1712 | env->msr_hv_synic_control); |
9c600a84 | 1713 | kvm_msr_entry_add(cpu, HV_X64_MSR_SVERSION, |
866eea9a | 1714 | env->msr_hv_synic_version); |
9c600a84 | 1715 | kvm_msr_entry_add(cpu, HV_X64_MSR_SIEFP, |
866eea9a | 1716 | env->msr_hv_synic_evt_page); |
9c600a84 | 1717 | kvm_msr_entry_add(cpu, HV_X64_MSR_SIMP, |
866eea9a AS |
1718 | env->msr_hv_synic_msg_page); |
1719 | ||
1720 | for (j = 0; j < ARRAY_SIZE(env->msr_hv_synic_sint); j++) { | |
9c600a84 | 1721 | kvm_msr_entry_add(cpu, HV_X64_MSR_SINT0 + j, |
866eea9a AS |
1722 | env->msr_hv_synic_sint[j]); |
1723 | } | |
1724 | } | |
ff99aa64 AS |
1725 | if (has_msr_hv_stimer) { |
1726 | int j; | |
1727 | ||
1728 | for (j = 0; j < ARRAY_SIZE(env->msr_hv_stimer_config); j++) { | |
9c600a84 | 1729 | kvm_msr_entry_add(cpu, HV_X64_MSR_STIMER0_CONFIG + j * 2, |
ff99aa64 AS |
1730 | env->msr_hv_stimer_config[j]); |
1731 | } | |
1732 | ||
1733 | for (j = 0; j < ARRAY_SIZE(env->msr_hv_stimer_count); j++) { | |
9c600a84 | 1734 | kvm_msr_entry_add(cpu, HV_X64_MSR_STIMER0_COUNT + j * 2, |
ff99aa64 AS |
1735 | env->msr_hv_stimer_count[j]); |
1736 | } | |
1737 | } | |
d1ae67f6 | 1738 | if (has_msr_mtrr) { |
112dad69 DDAG |
1739 | uint64_t phys_mask = MAKE_64BIT_MASK(0, cpu->phys_bits); |
1740 | ||
9c600a84 EH |
1741 | kvm_msr_entry_add(cpu, MSR_MTRRdefType, env->mtrr_deftype); |
1742 | kvm_msr_entry_add(cpu, MSR_MTRRfix64K_00000, env->mtrr_fixed[0]); | |
1743 | kvm_msr_entry_add(cpu, MSR_MTRRfix16K_80000, env->mtrr_fixed[1]); | |
1744 | kvm_msr_entry_add(cpu, MSR_MTRRfix16K_A0000, env->mtrr_fixed[2]); | |
1745 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_C0000, env->mtrr_fixed[3]); | |
1746 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_C8000, env->mtrr_fixed[4]); | |
1747 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_D0000, env->mtrr_fixed[5]); | |
1748 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_D8000, env->mtrr_fixed[6]); | |
1749 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_E0000, env->mtrr_fixed[7]); | |
1750 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_E8000, env->mtrr_fixed[8]); | |
1751 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_F0000, env->mtrr_fixed[9]); | |
1752 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_F8000, env->mtrr_fixed[10]); | |
d1ae67f6 | 1753 | for (i = 0; i < MSR_MTRRcap_VCNT; i++) { |
112dad69 DDAG |
1754 | /* The CPU GPs if we write to a bit above the physical limit of |
1755 | * the host CPU (and KVM emulates that) | |
1756 | */ | |
1757 | uint64_t mask = env->mtrr_var[i].mask; | |
1758 | mask &= phys_mask; | |
1759 | ||
9c600a84 EH |
1760 | kvm_msr_entry_add(cpu, MSR_MTRRphysBase(i), |
1761 | env->mtrr_var[i].base); | |
112dad69 | 1762 | kvm_msr_entry_add(cpu, MSR_MTRRphysMask(i), mask); |
d1ae67f6 AW |
1763 | } |
1764 | } | |
6bdf863d JK |
1765 | |
1766 | /* Note: MSR_IA32_FEATURE_CONTROL is written separately, see | |
1767 | * kvm_put_msr_feature_control. */ | |
ea643051 | 1768 | } |
57780495 | 1769 | if (env->mcg_cap) { |
d8da8574 | 1770 | int i; |
b9bec74b | 1771 | |
9c600a84 EH |
1772 | kvm_msr_entry_add(cpu, MSR_MCG_STATUS, env->mcg_status); |
1773 | kvm_msr_entry_add(cpu, MSR_MCG_CTL, env->mcg_ctl); | |
87f8b626 AR |
1774 | if (has_msr_mcg_ext_ctl) { |
1775 | kvm_msr_entry_add(cpu, MSR_MCG_EXT_CTL, env->mcg_ext_ctl); | |
1776 | } | |
c34d440a | 1777 | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
9c600a84 | 1778 | kvm_msr_entry_add(cpu, MSR_MC0_CTL + i, env->mce_banks[i]); |
57780495 MT |
1779 | } |
1780 | } | |
1a03675d | 1781 | |
d71b62a1 | 1782 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, cpu->kvm_msr_buf); |
48e1a45c PB |
1783 | if (ret < 0) { |
1784 | return ret; | |
1785 | } | |
05330448 | 1786 | |
9c600a84 | 1787 | assert(ret == cpu->kvm_msr_buf->nmsrs); |
48e1a45c | 1788 | return 0; |
05330448 AL |
1789 | } |
1790 | ||
1791 | ||
1bc22652 | 1792 | static int kvm_get_fpu(X86CPU *cpu) |
05330448 | 1793 | { |
1bc22652 | 1794 | CPUX86State *env = &cpu->env; |
05330448 AL |
1795 | struct kvm_fpu fpu; |
1796 | int i, ret; | |
1797 | ||
1bc22652 | 1798 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_FPU, &fpu); |
b9bec74b | 1799 | if (ret < 0) { |
05330448 | 1800 | return ret; |
b9bec74b | 1801 | } |
05330448 AL |
1802 | |
1803 | env->fpstt = (fpu.fsw >> 11) & 7; | |
1804 | env->fpus = fpu.fsw; | |
1805 | env->fpuc = fpu.fcw; | |
42cc8fa6 JK |
1806 | env->fpop = fpu.last_opcode; |
1807 | env->fpip = fpu.last_ip; | |
1808 | env->fpdp = fpu.last_dp; | |
b9bec74b JK |
1809 | for (i = 0; i < 8; ++i) { |
1810 | env->fptags[i] = !((fpu.ftwx >> i) & 1); | |
1811 | } | |
05330448 | 1812 | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs); |
bee81887 | 1813 | for (i = 0; i < CPU_NB_REGS; i++) { |
19cbd87c EH |
1814 | env->xmm_regs[i].ZMM_Q(0) = ldq_p(&fpu.xmm[i][0]); |
1815 | env->xmm_regs[i].ZMM_Q(1) = ldq_p(&fpu.xmm[i][8]); | |
bee81887 | 1816 | } |
05330448 AL |
1817 | env->mxcsr = fpu.mxcsr; |
1818 | ||
1819 | return 0; | |
1820 | } | |
1821 | ||
1bc22652 | 1822 | static int kvm_get_xsave(X86CPU *cpu) |
f1665b21 | 1823 | { |
1bc22652 | 1824 | CPUX86State *env = &cpu->env; |
86cd2ea0 | 1825 | X86XSaveArea *xsave = env->kvm_xsave_buf; |
f1665b21 | 1826 | int ret, i; |
42cc8fa6 | 1827 | uint16_t cwd, swd, twd; |
f1665b21 | 1828 | |
28143b40 | 1829 | if (!has_xsave) { |
1bc22652 | 1830 | return kvm_get_fpu(cpu); |
b9bec74b | 1831 | } |
f1665b21 | 1832 | |
1bc22652 | 1833 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_XSAVE, xsave); |
0f53994f | 1834 | if (ret < 0) { |
f1665b21 | 1835 | return ret; |
0f53994f | 1836 | } |
f1665b21 | 1837 | |
86cd2ea0 EH |
1838 | cwd = xsave->legacy.fcw; |
1839 | swd = xsave->legacy.fsw; | |
1840 | twd = xsave->legacy.ftw; | |
1841 | env->fpop = xsave->legacy.fpop; | |
f1665b21 SY |
1842 | env->fpstt = (swd >> 11) & 7; |
1843 | env->fpus = swd; | |
1844 | env->fpuc = cwd; | |
b9bec74b | 1845 | for (i = 0; i < 8; ++i) { |
f1665b21 | 1846 | env->fptags[i] = !((twd >> i) & 1); |
b9bec74b | 1847 | } |
86cd2ea0 EH |
1848 | env->fpip = xsave->legacy.fpip; |
1849 | env->fpdp = xsave->legacy.fpdp; | |
1850 | env->mxcsr = xsave->legacy.mxcsr; | |
1851 | memcpy(env->fpregs, &xsave->legacy.fpregs, | |
f1665b21 | 1852 | sizeof env->fpregs); |
86cd2ea0 EH |
1853 | env->xstate_bv = xsave->header.xstate_bv; |
1854 | memcpy(env->bnd_regs, &xsave->bndreg_state.bnd_regs, | |
79e9ebeb | 1855 | sizeof env->bnd_regs); |
86cd2ea0 EH |
1856 | env->bndcs_regs = xsave->bndcsr_state.bndcsr; |
1857 | memcpy(env->opmask_regs, &xsave->opmask_state.opmask_regs, | |
9aecd6f8 | 1858 | sizeof env->opmask_regs); |
bee81887 | 1859 | |
86cd2ea0 EH |
1860 | for (i = 0; i < CPU_NB_REGS; i++) { |
1861 | uint8_t *xmm = xsave->legacy.xmm_regs[i]; | |
1862 | uint8_t *ymmh = xsave->avx_state.ymmh[i]; | |
1863 | uint8_t *zmmh = xsave->zmm_hi256_state.zmm_hi256[i]; | |
19cbd87c EH |
1864 | env->xmm_regs[i].ZMM_Q(0) = ldq_p(xmm); |
1865 | env->xmm_regs[i].ZMM_Q(1) = ldq_p(xmm+8); | |
1866 | env->xmm_regs[i].ZMM_Q(2) = ldq_p(ymmh); | |
1867 | env->xmm_regs[i].ZMM_Q(3) = ldq_p(ymmh+8); | |
1868 | env->xmm_regs[i].ZMM_Q(4) = ldq_p(zmmh); | |
1869 | env->xmm_regs[i].ZMM_Q(5) = ldq_p(zmmh+8); | |
1870 | env->xmm_regs[i].ZMM_Q(6) = ldq_p(zmmh+16); | |
1871 | env->xmm_regs[i].ZMM_Q(7) = ldq_p(zmmh+24); | |
bee81887 PB |
1872 | } |
1873 | ||
9aecd6f8 | 1874 | #ifdef TARGET_X86_64 |
86cd2ea0 | 1875 | memcpy(&env->xmm_regs[16], &xsave->hi16_zmm_state.hi16_zmm, |
b7711471 | 1876 | 16 * sizeof env->xmm_regs[16]); |
86cd2ea0 | 1877 | memcpy(&env->pkru, &xsave->pkru_state, sizeof env->pkru); |
9aecd6f8 | 1878 | #endif |
f1665b21 | 1879 | return 0; |
f1665b21 SY |
1880 | } |
1881 | ||
1bc22652 | 1882 | static int kvm_get_xcrs(X86CPU *cpu) |
f1665b21 | 1883 | { |
1bc22652 | 1884 | CPUX86State *env = &cpu->env; |
f1665b21 SY |
1885 | int i, ret; |
1886 | struct kvm_xcrs xcrs; | |
1887 | ||
28143b40 | 1888 | if (!has_xcrs) { |
f1665b21 | 1889 | return 0; |
b9bec74b | 1890 | } |
f1665b21 | 1891 | |
1bc22652 | 1892 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_XCRS, &xcrs); |
b9bec74b | 1893 | if (ret < 0) { |
f1665b21 | 1894 | return ret; |
b9bec74b | 1895 | } |
f1665b21 | 1896 | |
b9bec74b | 1897 | for (i = 0; i < xcrs.nr_xcrs; i++) { |
f1665b21 | 1898 | /* Only support xcr0 now */ |
0fd53fec PB |
1899 | if (xcrs.xcrs[i].xcr == 0) { |
1900 | env->xcr0 = xcrs.xcrs[i].value; | |
f1665b21 SY |
1901 | break; |
1902 | } | |
b9bec74b | 1903 | } |
f1665b21 | 1904 | return 0; |
f1665b21 SY |
1905 | } |
1906 | ||
1bc22652 | 1907 | static int kvm_get_sregs(X86CPU *cpu) |
05330448 | 1908 | { |
1bc22652 | 1909 | CPUX86State *env = &cpu->env; |
05330448 AL |
1910 | struct kvm_sregs sregs; |
1911 | uint32_t hflags; | |
0e607a80 | 1912 | int bit, i, ret; |
05330448 | 1913 | |
1bc22652 | 1914 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_SREGS, &sregs); |
b9bec74b | 1915 | if (ret < 0) { |
05330448 | 1916 | return ret; |
b9bec74b | 1917 | } |
05330448 | 1918 | |
0e607a80 JK |
1919 | /* There can only be one pending IRQ set in the bitmap at a time, so try |
1920 | to find it and save its number instead (-1 for none). */ | |
1921 | env->interrupt_injected = -1; | |
1922 | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { | |
1923 | if (sregs.interrupt_bitmap[i]) { | |
1924 | bit = ctz64(sregs.interrupt_bitmap[i]); | |
1925 | env->interrupt_injected = i * 64 + bit; | |
1926 | break; | |
1927 | } | |
1928 | } | |
05330448 AL |
1929 | |
1930 | get_seg(&env->segs[R_CS], &sregs.cs); | |
1931 | get_seg(&env->segs[R_DS], &sregs.ds); | |
1932 | get_seg(&env->segs[R_ES], &sregs.es); | |
1933 | get_seg(&env->segs[R_FS], &sregs.fs); | |
1934 | get_seg(&env->segs[R_GS], &sregs.gs); | |
1935 | get_seg(&env->segs[R_SS], &sregs.ss); | |
1936 | ||
1937 | get_seg(&env->tr, &sregs.tr); | |
1938 | get_seg(&env->ldt, &sregs.ldt); | |
1939 | ||
1940 | env->idt.limit = sregs.idt.limit; | |
1941 | env->idt.base = sregs.idt.base; | |
1942 | env->gdt.limit = sregs.gdt.limit; | |
1943 | env->gdt.base = sregs.gdt.base; | |
1944 | ||
1945 | env->cr[0] = sregs.cr0; | |
1946 | env->cr[2] = sregs.cr2; | |
1947 | env->cr[3] = sregs.cr3; | |
1948 | env->cr[4] = sregs.cr4; | |
1949 | ||
05330448 | 1950 | env->efer = sregs.efer; |
cce47516 JK |
1951 | |
1952 | /* changes to apic base and cr8/tpr are read back via kvm_arch_post_run */ | |
05330448 | 1953 | |
b9bec74b JK |
1954 | #define HFLAG_COPY_MASK \ |
1955 | ~( HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ | |
1956 | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ | |
1957 | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ | |
1958 | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) | |
05330448 | 1959 | |
19dc85db RH |
1960 | hflags = env->hflags & HFLAG_COPY_MASK; |
1961 | hflags |= (env->segs[R_SS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; | |
05330448 AL |
1962 | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT); |
1963 | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) & | |
b9bec74b | 1964 | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
05330448 | 1965 | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
19dc85db RH |
1966 | |
1967 | if (env->cr[4] & CR4_OSFXSR_MASK) { | |
1968 | hflags |= HF_OSFXSR_MASK; | |
1969 | } | |
05330448 AL |
1970 | |
1971 | if (env->efer & MSR_EFER_LMA) { | |
1972 | hflags |= HF_LMA_MASK; | |
1973 | } | |
1974 | ||
1975 | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) { | |
1976 | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; | |
1977 | } else { | |
1978 | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> | |
b9bec74b | 1979 | (DESC_B_SHIFT - HF_CS32_SHIFT); |
05330448 | 1980 | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
b9bec74b JK |
1981 | (DESC_B_SHIFT - HF_SS32_SHIFT); |
1982 | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK) || | |
1983 | !(hflags & HF_CS32_MASK)) { | |
1984 | hflags |= HF_ADDSEG_MASK; | |
1985 | } else { | |
1986 | hflags |= ((env->segs[R_DS].base | env->segs[R_ES].base | | |
1987 | env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT; | |
1988 | } | |
05330448 | 1989 | } |
19dc85db | 1990 | env->hflags = hflags; |
05330448 AL |
1991 | |
1992 | return 0; | |
1993 | } | |
1994 | ||
1bc22652 | 1995 | static int kvm_get_msrs(X86CPU *cpu) |
05330448 | 1996 | { |
1bc22652 | 1997 | CPUX86State *env = &cpu->env; |
d71b62a1 | 1998 | struct kvm_msr_entry *msrs = cpu->kvm_msr_buf->entries; |
9c600a84 | 1999 | int ret, i; |
fcc35e7c | 2000 | uint64_t mtrr_top_bits; |
05330448 | 2001 | |
d71b62a1 EH |
2002 | kvm_msr_buf_reset(cpu); |
2003 | ||
9c600a84 EH |
2004 | kvm_msr_entry_add(cpu, MSR_IA32_SYSENTER_CS, 0); |
2005 | kvm_msr_entry_add(cpu, MSR_IA32_SYSENTER_ESP, 0); | |
2006 | kvm_msr_entry_add(cpu, MSR_IA32_SYSENTER_EIP, 0); | |
2007 | kvm_msr_entry_add(cpu, MSR_PAT, 0); | |
c3a3a7d3 | 2008 | if (has_msr_star) { |
9c600a84 | 2009 | kvm_msr_entry_add(cpu, MSR_STAR, 0); |
b9bec74b | 2010 | } |
c3a3a7d3 | 2011 | if (has_msr_hsave_pa) { |
9c600a84 | 2012 | kvm_msr_entry_add(cpu, MSR_VM_HSAVE_PA, 0); |
b9bec74b | 2013 | } |
c9b8f6b6 | 2014 | if (has_msr_tsc_aux) { |
9c600a84 | 2015 | kvm_msr_entry_add(cpu, MSR_TSC_AUX, 0); |
c9b8f6b6 | 2016 | } |
f28558d3 | 2017 | if (has_msr_tsc_adjust) { |
9c600a84 | 2018 | kvm_msr_entry_add(cpu, MSR_TSC_ADJUST, 0); |
f28558d3 | 2019 | } |
aa82ba54 | 2020 | if (has_msr_tsc_deadline) { |
9c600a84 | 2021 | kvm_msr_entry_add(cpu, MSR_IA32_TSCDEADLINE, 0); |
aa82ba54 | 2022 | } |
21e87c46 | 2023 | if (has_msr_misc_enable) { |
9c600a84 | 2024 | kvm_msr_entry_add(cpu, MSR_IA32_MISC_ENABLE, 0); |
21e87c46 | 2025 | } |
fc12d72e | 2026 | if (has_msr_smbase) { |
9c600a84 | 2027 | kvm_msr_entry_add(cpu, MSR_IA32_SMBASE, 0); |
fc12d72e | 2028 | } |
df67696e | 2029 | if (has_msr_feature_control) { |
9c600a84 | 2030 | kvm_msr_entry_add(cpu, MSR_IA32_FEATURE_CONTROL, 0); |
df67696e | 2031 | } |
79e9ebeb | 2032 | if (has_msr_bndcfgs) { |
9c600a84 | 2033 | kvm_msr_entry_add(cpu, MSR_IA32_BNDCFGS, 0); |
79e9ebeb | 2034 | } |
18cd2c17 | 2035 | if (has_msr_xss) { |
9c600a84 | 2036 | kvm_msr_entry_add(cpu, MSR_IA32_XSS, 0); |
18cd2c17 WL |
2037 | } |
2038 | ||
b8cc45d6 GC |
2039 | |
2040 | if (!env->tsc_valid) { | |
9c600a84 | 2041 | kvm_msr_entry_add(cpu, MSR_IA32_TSC, 0); |
1354869c | 2042 | env->tsc_valid = !runstate_is_running(); |
b8cc45d6 GC |
2043 | } |
2044 | ||
05330448 | 2045 | #ifdef TARGET_X86_64 |
25d2e361 | 2046 | if (lm_capable_kernel) { |
9c600a84 EH |
2047 | kvm_msr_entry_add(cpu, MSR_CSTAR, 0); |
2048 | kvm_msr_entry_add(cpu, MSR_KERNELGSBASE, 0); | |
2049 | kvm_msr_entry_add(cpu, MSR_FMASK, 0); | |
2050 | kvm_msr_entry_add(cpu, MSR_LSTAR, 0); | |
25d2e361 | 2051 | } |
05330448 | 2052 | #endif |
9c600a84 EH |
2053 | kvm_msr_entry_add(cpu, MSR_KVM_SYSTEM_TIME, 0); |
2054 | kvm_msr_entry_add(cpu, MSR_KVM_WALL_CLOCK, 0); | |
c5999bfc | 2055 | if (has_msr_async_pf_en) { |
9c600a84 | 2056 | kvm_msr_entry_add(cpu, MSR_KVM_ASYNC_PF_EN, 0); |
c5999bfc | 2057 | } |
bc9a839d | 2058 | if (has_msr_pv_eoi_en) { |
9c600a84 | 2059 | kvm_msr_entry_add(cpu, MSR_KVM_PV_EOI_EN, 0); |
bc9a839d | 2060 | } |
917367aa | 2061 | if (has_msr_kvm_steal_time) { |
9c600a84 | 2062 | kvm_msr_entry_add(cpu, MSR_KVM_STEAL_TIME, 0); |
917367aa | 2063 | } |
0d894367 | 2064 | if (has_msr_architectural_pmu) { |
9c600a84 EH |
2065 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_FIXED_CTR_CTRL, 0); |
2066 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_CTRL, 0); | |
2067 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_STATUS, 0); | |
2068 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_GLOBAL_OVF_CTRL, 0); | |
0d894367 | 2069 | for (i = 0; i < MAX_FIXED_COUNTERS; i++) { |
9c600a84 | 2070 | kvm_msr_entry_add(cpu, MSR_CORE_PERF_FIXED_CTR0 + i, 0); |
0d894367 PB |
2071 | } |
2072 | for (i = 0; i < num_architectural_pmu_counters; i++) { | |
9c600a84 EH |
2073 | kvm_msr_entry_add(cpu, MSR_P6_PERFCTR0 + i, 0); |
2074 | kvm_msr_entry_add(cpu, MSR_P6_EVNTSEL0 + i, 0); | |
0d894367 PB |
2075 | } |
2076 | } | |
1a03675d | 2077 | |
57780495 | 2078 | if (env->mcg_cap) { |
9c600a84 EH |
2079 | kvm_msr_entry_add(cpu, MSR_MCG_STATUS, 0); |
2080 | kvm_msr_entry_add(cpu, MSR_MCG_CTL, 0); | |
87f8b626 AR |
2081 | if (has_msr_mcg_ext_ctl) { |
2082 | kvm_msr_entry_add(cpu, MSR_MCG_EXT_CTL, 0); | |
2083 | } | |
b9bec74b | 2084 | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
9c600a84 | 2085 | kvm_msr_entry_add(cpu, MSR_MC0_CTL + i, 0); |
b9bec74b | 2086 | } |
57780495 | 2087 | } |
57780495 | 2088 | |
1c90ef26 | 2089 | if (has_msr_hv_hypercall) { |
9c600a84 EH |
2090 | kvm_msr_entry_add(cpu, HV_X64_MSR_HYPERCALL, 0); |
2091 | kvm_msr_entry_add(cpu, HV_X64_MSR_GUEST_OS_ID, 0); | |
1c90ef26 | 2092 | } |
5ef68987 | 2093 | if (has_msr_hv_vapic) { |
9c600a84 | 2094 | kvm_msr_entry_add(cpu, HV_X64_MSR_APIC_ASSIST_PAGE, 0); |
5ef68987 | 2095 | } |
48a5f3bc | 2096 | if (has_msr_hv_tsc) { |
9c600a84 | 2097 | kvm_msr_entry_add(cpu, HV_X64_MSR_REFERENCE_TSC, 0); |
48a5f3bc | 2098 | } |
f2a53c9e AS |
2099 | if (has_msr_hv_crash) { |
2100 | int j; | |
2101 | ||
2102 | for (j = 0; j < HV_X64_MSR_CRASH_PARAMS; j++) { | |
9c600a84 | 2103 | kvm_msr_entry_add(cpu, HV_X64_MSR_CRASH_P0 + j, 0); |
f2a53c9e AS |
2104 | } |
2105 | } | |
46eb8f98 | 2106 | if (has_msr_hv_runtime) { |
9c600a84 | 2107 | kvm_msr_entry_add(cpu, HV_X64_MSR_VP_RUNTIME, 0); |
46eb8f98 | 2108 | } |
866eea9a AS |
2109 | if (cpu->hyperv_synic) { |
2110 | uint32_t msr; | |
2111 | ||
9c600a84 EH |
2112 | kvm_msr_entry_add(cpu, HV_X64_MSR_SCONTROL, 0); |
2113 | kvm_msr_entry_add(cpu, HV_X64_MSR_SVERSION, 0); | |
2114 | kvm_msr_entry_add(cpu, HV_X64_MSR_SIEFP, 0); | |
2115 | kvm_msr_entry_add(cpu, HV_X64_MSR_SIMP, 0); | |
866eea9a | 2116 | for (msr = HV_X64_MSR_SINT0; msr <= HV_X64_MSR_SINT15; msr++) { |
9c600a84 | 2117 | kvm_msr_entry_add(cpu, msr, 0); |
866eea9a AS |
2118 | } |
2119 | } | |
ff99aa64 AS |
2120 | if (has_msr_hv_stimer) { |
2121 | uint32_t msr; | |
2122 | ||
2123 | for (msr = HV_X64_MSR_STIMER0_CONFIG; msr <= HV_X64_MSR_STIMER3_COUNT; | |
2124 | msr++) { | |
9c600a84 | 2125 | kvm_msr_entry_add(cpu, msr, 0); |
ff99aa64 AS |
2126 | } |
2127 | } | |
d1ae67f6 | 2128 | if (has_msr_mtrr) { |
9c600a84 EH |
2129 | kvm_msr_entry_add(cpu, MSR_MTRRdefType, 0); |
2130 | kvm_msr_entry_add(cpu, MSR_MTRRfix64K_00000, 0); | |
2131 | kvm_msr_entry_add(cpu, MSR_MTRRfix16K_80000, 0); | |
2132 | kvm_msr_entry_add(cpu, MSR_MTRRfix16K_A0000, 0); | |
2133 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_C0000, 0); | |
2134 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_C8000, 0); | |
2135 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_D0000, 0); | |
2136 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_D8000, 0); | |
2137 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_E0000, 0); | |
2138 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_E8000, 0); | |
2139 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_F0000, 0); | |
2140 | kvm_msr_entry_add(cpu, MSR_MTRRfix4K_F8000, 0); | |
d1ae67f6 | 2141 | for (i = 0; i < MSR_MTRRcap_VCNT; i++) { |
9c600a84 EH |
2142 | kvm_msr_entry_add(cpu, MSR_MTRRphysBase(i), 0); |
2143 | kvm_msr_entry_add(cpu, MSR_MTRRphysMask(i), 0); | |
d1ae67f6 AW |
2144 | } |
2145 | } | |
5ef68987 | 2146 | |
d71b62a1 | 2147 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_MSRS, cpu->kvm_msr_buf); |
b9bec74b | 2148 | if (ret < 0) { |
05330448 | 2149 | return ret; |
b9bec74b | 2150 | } |
05330448 | 2151 | |
9c600a84 | 2152 | assert(ret == cpu->kvm_msr_buf->nmsrs); |
fcc35e7c DDAG |
2153 | /* |
2154 | * MTRR masks: Each mask consists of 5 parts | |
2155 | * a 10..0: must be zero | |
2156 | * b 11 : valid bit | |
2157 | * c n-1.12: actual mask bits | |
2158 | * d 51..n: reserved must be zero | |
2159 | * e 63.52: reserved must be zero | |
2160 | * | |
2161 | * 'n' is the number of physical bits supported by the CPU and is | |
2162 | * apparently always <= 52. We know our 'n' but don't know what | |
2163 | * the destinations 'n' is; it might be smaller, in which case | |
2164 | * it masks (c) on loading. It might be larger, in which case | |
2165 | * we fill 'd' so that d..c is consistent irrespetive of the 'n' | |
2166 | * we're migrating to. | |
2167 | */ | |
2168 | ||
2169 | if (cpu->fill_mtrr_mask) { | |
2170 | QEMU_BUILD_BUG_ON(TARGET_PHYS_ADDR_SPACE_BITS > 52); | |
2171 | assert(cpu->phys_bits <= TARGET_PHYS_ADDR_SPACE_BITS); | |
2172 | mtrr_top_bits = MAKE_64BIT_MASK(cpu->phys_bits, 52 - cpu->phys_bits); | |
2173 | } else { | |
2174 | mtrr_top_bits = 0; | |
2175 | } | |
2176 | ||
05330448 | 2177 | for (i = 0; i < ret; i++) { |
0d894367 PB |
2178 | uint32_t index = msrs[i].index; |
2179 | switch (index) { | |
05330448 AL |
2180 | case MSR_IA32_SYSENTER_CS: |
2181 | env->sysenter_cs = msrs[i].data; | |
2182 | break; | |
2183 | case MSR_IA32_SYSENTER_ESP: | |
2184 | env->sysenter_esp = msrs[i].data; | |
2185 | break; | |
2186 | case MSR_IA32_SYSENTER_EIP: | |
2187 | env->sysenter_eip = msrs[i].data; | |
2188 | break; | |
0c03266a JK |
2189 | case MSR_PAT: |
2190 | env->pat = msrs[i].data; | |
2191 | break; | |
05330448 AL |
2192 | case MSR_STAR: |
2193 | env->star = msrs[i].data; | |
2194 | break; | |
2195 | #ifdef TARGET_X86_64 | |
2196 | case MSR_CSTAR: | |
2197 | env->cstar = msrs[i].data; | |
2198 | break; | |
2199 | case MSR_KERNELGSBASE: | |
2200 | env->kernelgsbase = msrs[i].data; | |
2201 | break; | |
2202 | case MSR_FMASK: | |
2203 | env->fmask = msrs[i].data; | |
2204 | break; | |
2205 | case MSR_LSTAR: | |
2206 | env->lstar = msrs[i].data; | |
2207 | break; | |
2208 | #endif | |
2209 | case MSR_IA32_TSC: | |
2210 | env->tsc = msrs[i].data; | |
2211 | break; | |
c9b8f6b6 AS |
2212 | case MSR_TSC_AUX: |
2213 | env->tsc_aux = msrs[i].data; | |
2214 | break; | |
f28558d3 WA |
2215 | case MSR_TSC_ADJUST: |
2216 | env->tsc_adjust = msrs[i].data; | |
2217 | break; | |
aa82ba54 LJ |
2218 | case MSR_IA32_TSCDEADLINE: |
2219 | env->tsc_deadline = msrs[i].data; | |
2220 | break; | |
aa851e36 MT |
2221 | case MSR_VM_HSAVE_PA: |
2222 | env->vm_hsave = msrs[i].data; | |
2223 | break; | |
1a03675d GC |
2224 | case MSR_KVM_SYSTEM_TIME: |
2225 | env->system_time_msr = msrs[i].data; | |
2226 | break; | |
2227 | case MSR_KVM_WALL_CLOCK: | |
2228 | env->wall_clock_msr = msrs[i].data; | |
2229 | break; | |
57780495 MT |
2230 | case MSR_MCG_STATUS: |
2231 | env->mcg_status = msrs[i].data; | |
2232 | break; | |
2233 | case MSR_MCG_CTL: | |
2234 | env->mcg_ctl = msrs[i].data; | |
2235 | break; | |
87f8b626 AR |
2236 | case MSR_MCG_EXT_CTL: |
2237 | env->mcg_ext_ctl = msrs[i].data; | |
2238 | break; | |
21e87c46 AK |
2239 | case MSR_IA32_MISC_ENABLE: |
2240 | env->msr_ia32_misc_enable = msrs[i].data; | |
2241 | break; | |
fc12d72e PB |
2242 | case MSR_IA32_SMBASE: |
2243 | env->smbase = msrs[i].data; | |
2244 | break; | |
0779caeb ACL |
2245 | case MSR_IA32_FEATURE_CONTROL: |
2246 | env->msr_ia32_feature_control = msrs[i].data; | |
df67696e | 2247 | break; |
79e9ebeb LJ |
2248 | case MSR_IA32_BNDCFGS: |
2249 | env->msr_bndcfgs = msrs[i].data; | |
2250 | break; | |
18cd2c17 WL |
2251 | case MSR_IA32_XSS: |
2252 | env->xss = msrs[i].data; | |
2253 | break; | |
57780495 | 2254 | default: |
57780495 MT |
2255 | if (msrs[i].index >= MSR_MC0_CTL && |
2256 | msrs[i].index < MSR_MC0_CTL + (env->mcg_cap & 0xff) * 4) { | |
2257 | env->mce_banks[msrs[i].index - MSR_MC0_CTL] = msrs[i].data; | |
57780495 | 2258 | } |
d8da8574 | 2259 | break; |
f6584ee2 GN |
2260 | case MSR_KVM_ASYNC_PF_EN: |
2261 | env->async_pf_en_msr = msrs[i].data; | |
2262 | break; | |
bc9a839d MT |
2263 | case MSR_KVM_PV_EOI_EN: |
2264 | env->pv_eoi_en_msr = msrs[i].data; | |
2265 | break; | |
917367aa MT |
2266 | case MSR_KVM_STEAL_TIME: |
2267 | env->steal_time_msr = msrs[i].data; | |
2268 | break; | |
0d894367 PB |
2269 | case MSR_CORE_PERF_FIXED_CTR_CTRL: |
2270 | env->msr_fixed_ctr_ctrl = msrs[i].data; | |
2271 | break; | |
2272 | case MSR_CORE_PERF_GLOBAL_CTRL: | |
2273 | env->msr_global_ctrl = msrs[i].data; | |
2274 | break; | |
2275 | case MSR_CORE_PERF_GLOBAL_STATUS: | |
2276 | env->msr_global_status = msrs[i].data; | |
2277 | break; | |
2278 | case MSR_CORE_PERF_GLOBAL_OVF_CTRL: | |
2279 | env->msr_global_ovf_ctrl = msrs[i].data; | |
2280 | break; | |
2281 | case MSR_CORE_PERF_FIXED_CTR0 ... MSR_CORE_PERF_FIXED_CTR0 + MAX_FIXED_COUNTERS - 1: | |
2282 | env->msr_fixed_counters[index - MSR_CORE_PERF_FIXED_CTR0] = msrs[i].data; | |
2283 | break; | |
2284 | case MSR_P6_PERFCTR0 ... MSR_P6_PERFCTR0 + MAX_GP_COUNTERS - 1: | |
2285 | env->msr_gp_counters[index - MSR_P6_PERFCTR0] = msrs[i].data; | |
2286 | break; | |
2287 | case MSR_P6_EVNTSEL0 ... MSR_P6_EVNTSEL0 + MAX_GP_COUNTERS - 1: | |
2288 | env->msr_gp_evtsel[index - MSR_P6_EVNTSEL0] = msrs[i].data; | |
2289 | break; | |
1c90ef26 VR |
2290 | case HV_X64_MSR_HYPERCALL: |
2291 | env->msr_hv_hypercall = msrs[i].data; | |
2292 | break; | |
2293 | case HV_X64_MSR_GUEST_OS_ID: | |
2294 | env->msr_hv_guest_os_id = msrs[i].data; | |
2295 | break; | |
5ef68987 VR |
2296 | case HV_X64_MSR_APIC_ASSIST_PAGE: |
2297 | env->msr_hv_vapic = msrs[i].data; | |
2298 | break; | |
48a5f3bc VR |
2299 | case HV_X64_MSR_REFERENCE_TSC: |
2300 | env->msr_hv_tsc = msrs[i].data; | |
2301 | break; | |
f2a53c9e AS |
2302 | case HV_X64_MSR_CRASH_P0 ... HV_X64_MSR_CRASH_P4: |
2303 | env->msr_hv_crash_params[index - HV_X64_MSR_CRASH_P0] = msrs[i].data; | |
2304 | break; | |
46eb8f98 AS |
2305 | case HV_X64_MSR_VP_RUNTIME: |
2306 | env->msr_hv_runtime = msrs[i].data; | |
2307 | break; | |
866eea9a AS |
2308 | case HV_X64_MSR_SCONTROL: |
2309 | env->msr_hv_synic_control = msrs[i].data; | |
2310 | break; | |
2311 | case HV_X64_MSR_SVERSION: | |
2312 | env->msr_hv_synic_version = msrs[i].data; | |
2313 | break; | |
2314 | case HV_X64_MSR_SIEFP: | |
2315 | env->msr_hv_synic_evt_page = msrs[i].data; | |
2316 | break; | |
2317 | case HV_X64_MSR_SIMP: | |
2318 | env->msr_hv_synic_msg_page = msrs[i].data; | |
2319 | break; | |
2320 | case HV_X64_MSR_SINT0 ... HV_X64_MSR_SINT15: | |
2321 | env->msr_hv_synic_sint[index - HV_X64_MSR_SINT0] = msrs[i].data; | |
ff99aa64 AS |
2322 | break; |
2323 | case HV_X64_MSR_STIMER0_CONFIG: | |
2324 | case HV_X64_MSR_STIMER1_CONFIG: | |
2325 | case HV_X64_MSR_STIMER2_CONFIG: | |
2326 | case HV_X64_MSR_STIMER3_CONFIG: | |
2327 | env->msr_hv_stimer_config[(index - HV_X64_MSR_STIMER0_CONFIG)/2] = | |
2328 | msrs[i].data; | |
2329 | break; | |
2330 | case HV_X64_MSR_STIMER0_COUNT: | |
2331 | case HV_X64_MSR_STIMER1_COUNT: | |
2332 | case HV_X64_MSR_STIMER2_COUNT: | |
2333 | case HV_X64_MSR_STIMER3_COUNT: | |
2334 | env->msr_hv_stimer_count[(index - HV_X64_MSR_STIMER0_COUNT)/2] = | |
2335 | msrs[i].data; | |
866eea9a | 2336 | break; |
d1ae67f6 AW |
2337 | case MSR_MTRRdefType: |
2338 | env->mtrr_deftype = msrs[i].data; | |
2339 | break; | |
2340 | case MSR_MTRRfix64K_00000: | |
2341 | env->mtrr_fixed[0] = msrs[i].data; | |
2342 | break; | |
2343 | case MSR_MTRRfix16K_80000: | |
2344 | env->mtrr_fixed[1] = msrs[i].data; | |
2345 | break; | |
2346 | case MSR_MTRRfix16K_A0000: | |
2347 | env->mtrr_fixed[2] = msrs[i].data; | |
2348 | break; | |
2349 | case MSR_MTRRfix4K_C0000: | |
2350 | env->mtrr_fixed[3] = msrs[i].data; | |
2351 | break; | |
2352 | case MSR_MTRRfix4K_C8000: | |
2353 | env->mtrr_fixed[4] = msrs[i].data; | |
2354 | break; | |
2355 | case MSR_MTRRfix4K_D0000: | |
2356 | env->mtrr_fixed[5] = msrs[i].data; | |
2357 | break; | |
2358 | case MSR_MTRRfix4K_D8000: | |
2359 | env->mtrr_fixed[6] = msrs[i].data; | |
2360 | break; | |
2361 | case MSR_MTRRfix4K_E0000: | |
2362 | env->mtrr_fixed[7] = msrs[i].data; | |
2363 | break; | |
2364 | case MSR_MTRRfix4K_E8000: | |
2365 | env->mtrr_fixed[8] = msrs[i].data; | |
2366 | break; | |
2367 | case MSR_MTRRfix4K_F0000: | |
2368 | env->mtrr_fixed[9] = msrs[i].data; | |
2369 | break; | |
2370 | case MSR_MTRRfix4K_F8000: | |
2371 | env->mtrr_fixed[10] = msrs[i].data; | |
2372 | break; | |
2373 | case MSR_MTRRphysBase(0) ... MSR_MTRRphysMask(MSR_MTRRcap_VCNT - 1): | |
2374 | if (index & 1) { | |
fcc35e7c DDAG |
2375 | env->mtrr_var[MSR_MTRRphysIndex(index)].mask = msrs[i].data | |
2376 | mtrr_top_bits; | |
d1ae67f6 AW |
2377 | } else { |
2378 | env->mtrr_var[MSR_MTRRphysIndex(index)].base = msrs[i].data; | |
2379 | } | |
2380 | break; | |
05330448 AL |
2381 | } |
2382 | } | |
2383 | ||
2384 | return 0; | |
2385 | } | |
2386 | ||
1bc22652 | 2387 | static int kvm_put_mp_state(X86CPU *cpu) |
9bdbe550 | 2388 | { |
1bc22652 | 2389 | struct kvm_mp_state mp_state = { .mp_state = cpu->env.mp_state }; |
9bdbe550 | 2390 | |
1bc22652 | 2391 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MP_STATE, &mp_state); |
9bdbe550 HB |
2392 | } |
2393 | ||
23d02d9b | 2394 | static int kvm_get_mp_state(X86CPU *cpu) |
9bdbe550 | 2395 | { |
259186a7 | 2396 | CPUState *cs = CPU(cpu); |
23d02d9b | 2397 | CPUX86State *env = &cpu->env; |
9bdbe550 HB |
2398 | struct kvm_mp_state mp_state; |
2399 | int ret; | |
2400 | ||
259186a7 | 2401 | ret = kvm_vcpu_ioctl(cs, KVM_GET_MP_STATE, &mp_state); |
9bdbe550 HB |
2402 | if (ret < 0) { |
2403 | return ret; | |
2404 | } | |
2405 | env->mp_state = mp_state.mp_state; | |
c14750e8 | 2406 | if (kvm_irqchip_in_kernel()) { |
259186a7 | 2407 | cs->halted = (mp_state.mp_state == KVM_MP_STATE_HALTED); |
c14750e8 | 2408 | } |
9bdbe550 HB |
2409 | return 0; |
2410 | } | |
2411 | ||
1bc22652 | 2412 | static int kvm_get_apic(X86CPU *cpu) |
680c1c6f | 2413 | { |
02e51483 | 2414 | DeviceState *apic = cpu->apic_state; |
680c1c6f JK |
2415 | struct kvm_lapic_state kapic; |
2416 | int ret; | |
2417 | ||
3d4b2649 | 2418 | if (apic && kvm_irqchip_in_kernel()) { |
1bc22652 | 2419 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_LAPIC, &kapic); |
680c1c6f JK |
2420 | if (ret < 0) { |
2421 | return ret; | |
2422 | } | |
2423 | ||
2424 | kvm_get_apic_state(apic, &kapic); | |
2425 | } | |
2426 | return 0; | |
2427 | } | |
2428 | ||
1bc22652 | 2429 | static int kvm_put_vcpu_events(X86CPU *cpu, int level) |
a0fb002c | 2430 | { |
fc12d72e | 2431 | CPUState *cs = CPU(cpu); |
1bc22652 | 2432 | CPUX86State *env = &cpu->env; |
076796f8 | 2433 | struct kvm_vcpu_events events = {}; |
a0fb002c JK |
2434 | |
2435 | if (!kvm_has_vcpu_events()) { | |
2436 | return 0; | |
2437 | } | |
2438 | ||
31827373 JK |
2439 | events.exception.injected = (env->exception_injected >= 0); |
2440 | events.exception.nr = env->exception_injected; | |
a0fb002c JK |
2441 | events.exception.has_error_code = env->has_error_code; |
2442 | events.exception.error_code = env->error_code; | |
7e680753 | 2443 | events.exception.pad = 0; |
a0fb002c JK |
2444 | |
2445 | events.interrupt.injected = (env->interrupt_injected >= 0); | |
2446 | events.interrupt.nr = env->interrupt_injected; | |
2447 | events.interrupt.soft = env->soft_interrupt; | |
2448 | ||
2449 | events.nmi.injected = env->nmi_injected; | |
2450 | events.nmi.pending = env->nmi_pending; | |
2451 | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); | |
7e680753 | 2452 | events.nmi.pad = 0; |
a0fb002c JK |
2453 | |
2454 | events.sipi_vector = env->sipi_vector; | |
68c6efe0 | 2455 | events.flags = 0; |
a0fb002c | 2456 | |
fc12d72e PB |
2457 | if (has_msr_smbase) { |
2458 | events.smi.smm = !!(env->hflags & HF_SMM_MASK); | |
2459 | events.smi.smm_inside_nmi = !!(env->hflags2 & HF2_SMM_INSIDE_NMI_MASK); | |
2460 | if (kvm_irqchip_in_kernel()) { | |
2461 | /* As soon as these are moved to the kernel, remove them | |
2462 | * from cs->interrupt_request. | |
2463 | */ | |
2464 | events.smi.pending = cs->interrupt_request & CPU_INTERRUPT_SMI; | |
2465 | events.smi.latched_init = cs->interrupt_request & CPU_INTERRUPT_INIT; | |
2466 | cs->interrupt_request &= ~(CPU_INTERRUPT_INIT | CPU_INTERRUPT_SMI); | |
2467 | } else { | |
2468 | /* Keep these in cs->interrupt_request. */ | |
2469 | events.smi.pending = 0; | |
2470 | events.smi.latched_init = 0; | |
2471 | } | |
2472 | events.flags |= KVM_VCPUEVENT_VALID_SMM; | |
2473 | } | |
2474 | ||
ea643051 JK |
2475 | if (level >= KVM_PUT_RESET_STATE) { |
2476 | events.flags |= | |
2477 | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; | |
2478 | } | |
aee028b9 | 2479 | |
1bc22652 | 2480 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_VCPU_EVENTS, &events); |
a0fb002c JK |
2481 | } |
2482 | ||
1bc22652 | 2483 | static int kvm_get_vcpu_events(X86CPU *cpu) |
a0fb002c | 2484 | { |
1bc22652 | 2485 | CPUX86State *env = &cpu->env; |
a0fb002c JK |
2486 | struct kvm_vcpu_events events; |
2487 | int ret; | |
2488 | ||
2489 | if (!kvm_has_vcpu_events()) { | |
2490 | return 0; | |
2491 | } | |
2492 | ||
fc12d72e | 2493 | memset(&events, 0, sizeof(events)); |
1bc22652 | 2494 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_VCPU_EVENTS, &events); |
a0fb002c JK |
2495 | if (ret < 0) { |
2496 | return ret; | |
2497 | } | |
31827373 | 2498 | env->exception_injected = |
a0fb002c JK |
2499 | events.exception.injected ? events.exception.nr : -1; |
2500 | env->has_error_code = events.exception.has_error_code; | |
2501 | env->error_code = events.exception.error_code; | |
2502 | ||
2503 | env->interrupt_injected = | |
2504 | events.interrupt.injected ? events.interrupt.nr : -1; | |
2505 | env->soft_interrupt = events.interrupt.soft; | |
2506 | ||
2507 | env->nmi_injected = events.nmi.injected; | |
2508 | env->nmi_pending = events.nmi.pending; | |
2509 | if (events.nmi.masked) { | |
2510 | env->hflags2 |= HF2_NMI_MASK; | |
2511 | } else { | |
2512 | env->hflags2 &= ~HF2_NMI_MASK; | |
2513 | } | |
2514 | ||
fc12d72e PB |
2515 | if (events.flags & KVM_VCPUEVENT_VALID_SMM) { |
2516 | if (events.smi.smm) { | |
2517 | env->hflags |= HF_SMM_MASK; | |
2518 | } else { | |
2519 | env->hflags &= ~HF_SMM_MASK; | |
2520 | } | |
2521 | if (events.smi.pending) { | |
2522 | cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI); | |
2523 | } else { | |
2524 | cpu_reset_interrupt(CPU(cpu), CPU_INTERRUPT_SMI); | |
2525 | } | |
2526 | if (events.smi.smm_inside_nmi) { | |
2527 | env->hflags2 |= HF2_SMM_INSIDE_NMI_MASK; | |
2528 | } else { | |
2529 | env->hflags2 &= ~HF2_SMM_INSIDE_NMI_MASK; | |
2530 | } | |
2531 | if (events.smi.latched_init) { | |
2532 | cpu_interrupt(CPU(cpu), CPU_INTERRUPT_INIT); | |
2533 | } else { | |
2534 | cpu_reset_interrupt(CPU(cpu), CPU_INTERRUPT_INIT); | |
2535 | } | |
2536 | } | |
2537 | ||
a0fb002c | 2538 | env->sipi_vector = events.sipi_vector; |
a0fb002c JK |
2539 | |
2540 | return 0; | |
2541 | } | |
2542 | ||
1bc22652 | 2543 | static int kvm_guest_debug_workarounds(X86CPU *cpu) |
b0b1d690 | 2544 | { |
ed2803da | 2545 | CPUState *cs = CPU(cpu); |
1bc22652 | 2546 | CPUX86State *env = &cpu->env; |
b0b1d690 | 2547 | int ret = 0; |
b0b1d690 JK |
2548 | unsigned long reinject_trap = 0; |
2549 | ||
2550 | if (!kvm_has_vcpu_events()) { | |
2551 | if (env->exception_injected == 1) { | |
2552 | reinject_trap = KVM_GUESTDBG_INJECT_DB; | |
2553 | } else if (env->exception_injected == 3) { | |
2554 | reinject_trap = KVM_GUESTDBG_INJECT_BP; | |
2555 | } | |
2556 | env->exception_injected = -1; | |
2557 | } | |
2558 | ||
2559 | /* | |
2560 | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF | |
2561 | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this | |
2562 | * by updating the debug state once again if single-stepping is on. | |
2563 | * Another reason to call kvm_update_guest_debug here is a pending debug | |
2564 | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to | |
2565 | * reinject them via SET_GUEST_DEBUG. | |
2566 | */ | |
2567 | if (reinject_trap || | |
ed2803da | 2568 | (!kvm_has_robust_singlestep() && cs->singlestep_enabled)) { |
38e478ec | 2569 | ret = kvm_update_guest_debug(cs, reinject_trap); |
b0b1d690 | 2570 | } |
b0b1d690 JK |
2571 | return ret; |
2572 | } | |
2573 | ||
1bc22652 | 2574 | static int kvm_put_debugregs(X86CPU *cpu) |
ff44f1a3 | 2575 | { |
1bc22652 | 2576 | CPUX86State *env = &cpu->env; |
ff44f1a3 JK |
2577 | struct kvm_debugregs dbgregs; |
2578 | int i; | |
2579 | ||
2580 | if (!kvm_has_debugregs()) { | |
2581 | return 0; | |
2582 | } | |
2583 | ||
2584 | for (i = 0; i < 4; i++) { | |
2585 | dbgregs.db[i] = env->dr[i]; | |
2586 | } | |
2587 | dbgregs.dr6 = env->dr[6]; | |
2588 | dbgregs.dr7 = env->dr[7]; | |
2589 | dbgregs.flags = 0; | |
2590 | ||
1bc22652 | 2591 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_DEBUGREGS, &dbgregs); |
ff44f1a3 JK |
2592 | } |
2593 | ||
1bc22652 | 2594 | static int kvm_get_debugregs(X86CPU *cpu) |
ff44f1a3 | 2595 | { |
1bc22652 | 2596 | CPUX86State *env = &cpu->env; |
ff44f1a3 JK |
2597 | struct kvm_debugregs dbgregs; |
2598 | int i, ret; | |
2599 | ||
2600 | if (!kvm_has_debugregs()) { | |
2601 | return 0; | |
2602 | } | |
2603 | ||
1bc22652 | 2604 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_DEBUGREGS, &dbgregs); |
ff44f1a3 | 2605 | if (ret < 0) { |
b9bec74b | 2606 | return ret; |
ff44f1a3 JK |
2607 | } |
2608 | for (i = 0; i < 4; i++) { | |
2609 | env->dr[i] = dbgregs.db[i]; | |
2610 | } | |
2611 | env->dr[4] = env->dr[6] = dbgregs.dr6; | |
2612 | env->dr[5] = env->dr[7] = dbgregs.dr7; | |
ff44f1a3 JK |
2613 | |
2614 | return 0; | |
2615 | } | |
2616 | ||
20d695a9 | 2617 | int kvm_arch_put_registers(CPUState *cpu, int level) |
05330448 | 2618 | { |
20d695a9 | 2619 | X86CPU *x86_cpu = X86_CPU(cpu); |
05330448 AL |
2620 | int ret; |
2621 | ||
2fa45344 | 2622 | assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu)); |
dbaa07c4 | 2623 | |
48e1a45c | 2624 | if (level >= KVM_PUT_RESET_STATE) { |
6bdf863d JK |
2625 | ret = kvm_put_msr_feature_control(x86_cpu); |
2626 | if (ret < 0) { | |
2627 | return ret; | |
2628 | } | |
2629 | } | |
2630 | ||
36f96c4b HZ |
2631 | if (level == KVM_PUT_FULL_STATE) { |
2632 | /* We don't check for kvm_arch_set_tsc_khz() errors here, | |
2633 | * because TSC frequency mismatch shouldn't abort migration, | |
2634 | * unless the user explicitly asked for a more strict TSC | |
2635 | * setting (e.g. using an explicit "tsc-freq" option). | |
2636 | */ | |
2637 | kvm_arch_set_tsc_khz(cpu); | |
2638 | } | |
2639 | ||
1bc22652 | 2640 | ret = kvm_getput_regs(x86_cpu, 1); |
b9bec74b | 2641 | if (ret < 0) { |
05330448 | 2642 | return ret; |
b9bec74b | 2643 | } |
1bc22652 | 2644 | ret = kvm_put_xsave(x86_cpu); |
b9bec74b | 2645 | if (ret < 0) { |
f1665b21 | 2646 | return ret; |
b9bec74b | 2647 | } |
1bc22652 | 2648 | ret = kvm_put_xcrs(x86_cpu); |
b9bec74b | 2649 | if (ret < 0) { |
05330448 | 2650 | return ret; |
b9bec74b | 2651 | } |
1bc22652 | 2652 | ret = kvm_put_sregs(x86_cpu); |
b9bec74b | 2653 | if (ret < 0) { |
05330448 | 2654 | return ret; |
b9bec74b | 2655 | } |
ab443475 | 2656 | /* must be before kvm_put_msrs */ |
1bc22652 | 2657 | ret = kvm_inject_mce_oldstyle(x86_cpu); |
ab443475 JK |
2658 | if (ret < 0) { |
2659 | return ret; | |
2660 | } | |
1bc22652 | 2661 | ret = kvm_put_msrs(x86_cpu, level); |
b9bec74b | 2662 | if (ret < 0) { |
05330448 | 2663 | return ret; |
b9bec74b | 2664 | } |
ea643051 | 2665 | if (level >= KVM_PUT_RESET_STATE) { |
1bc22652 | 2666 | ret = kvm_put_mp_state(x86_cpu); |
b9bec74b | 2667 | if (ret < 0) { |
680c1c6f JK |
2668 | return ret; |
2669 | } | |
ea643051 | 2670 | } |
7477cd38 MT |
2671 | |
2672 | ret = kvm_put_tscdeadline_msr(x86_cpu); | |
2673 | if (ret < 0) { | |
2674 | return ret; | |
2675 | } | |
2676 | ||
1bc22652 | 2677 | ret = kvm_put_vcpu_events(x86_cpu, level); |
b9bec74b | 2678 | if (ret < 0) { |
a0fb002c | 2679 | return ret; |
b9bec74b | 2680 | } |
1bc22652 | 2681 | ret = kvm_put_debugregs(x86_cpu); |
b9bec74b | 2682 | if (ret < 0) { |
b0b1d690 | 2683 | return ret; |
b9bec74b | 2684 | } |
b0b1d690 | 2685 | /* must be last */ |
1bc22652 | 2686 | ret = kvm_guest_debug_workarounds(x86_cpu); |
b9bec74b | 2687 | if (ret < 0) { |
ff44f1a3 | 2688 | return ret; |
b9bec74b | 2689 | } |
05330448 AL |
2690 | return 0; |
2691 | } | |
2692 | ||
20d695a9 | 2693 | int kvm_arch_get_registers(CPUState *cs) |
05330448 | 2694 | { |
20d695a9 | 2695 | X86CPU *cpu = X86_CPU(cs); |
05330448 AL |
2696 | int ret; |
2697 | ||
20d695a9 | 2698 | assert(cpu_is_stopped(cs) || qemu_cpu_is_self(cs)); |
dbaa07c4 | 2699 | |
1bc22652 | 2700 | ret = kvm_getput_regs(cpu, 0); |
b9bec74b | 2701 | if (ret < 0) { |
f4f1110e | 2702 | goto out; |
b9bec74b | 2703 | } |
1bc22652 | 2704 | ret = kvm_get_xsave(cpu); |
b9bec74b | 2705 | if (ret < 0) { |
f4f1110e | 2706 | goto out; |
b9bec74b | 2707 | } |
1bc22652 | 2708 | ret = kvm_get_xcrs(cpu); |
b9bec74b | 2709 | if (ret < 0) { |
f4f1110e | 2710 | goto out; |
b9bec74b | 2711 | } |
1bc22652 | 2712 | ret = kvm_get_sregs(cpu); |
b9bec74b | 2713 | if (ret < 0) { |
f4f1110e | 2714 | goto out; |
b9bec74b | 2715 | } |
1bc22652 | 2716 | ret = kvm_get_msrs(cpu); |
b9bec74b | 2717 | if (ret < 0) { |
f4f1110e | 2718 | goto out; |
b9bec74b | 2719 | } |
23d02d9b | 2720 | ret = kvm_get_mp_state(cpu); |
b9bec74b | 2721 | if (ret < 0) { |
f4f1110e | 2722 | goto out; |
b9bec74b | 2723 | } |
1bc22652 | 2724 | ret = kvm_get_apic(cpu); |
680c1c6f | 2725 | if (ret < 0) { |
f4f1110e | 2726 | goto out; |
680c1c6f | 2727 | } |
1bc22652 | 2728 | ret = kvm_get_vcpu_events(cpu); |
b9bec74b | 2729 | if (ret < 0) { |
f4f1110e | 2730 | goto out; |
b9bec74b | 2731 | } |
1bc22652 | 2732 | ret = kvm_get_debugregs(cpu); |
b9bec74b | 2733 | if (ret < 0) { |
f4f1110e | 2734 | goto out; |
b9bec74b | 2735 | } |
f4f1110e RH |
2736 | ret = 0; |
2737 | out: | |
2738 | cpu_sync_bndcs_hflags(&cpu->env); | |
2739 | return ret; | |
05330448 AL |
2740 | } |
2741 | ||
20d695a9 | 2742 | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run) |
05330448 | 2743 | { |
20d695a9 AF |
2744 | X86CPU *x86_cpu = X86_CPU(cpu); |
2745 | CPUX86State *env = &x86_cpu->env; | |
ce377af3 JK |
2746 | int ret; |
2747 | ||
276ce815 | 2748 | /* Inject NMI */ |
fc12d72e PB |
2749 | if (cpu->interrupt_request & (CPU_INTERRUPT_NMI | CPU_INTERRUPT_SMI)) { |
2750 | if (cpu->interrupt_request & CPU_INTERRUPT_NMI) { | |
2751 | qemu_mutex_lock_iothread(); | |
2752 | cpu->interrupt_request &= ~CPU_INTERRUPT_NMI; | |
2753 | qemu_mutex_unlock_iothread(); | |
2754 | DPRINTF("injected NMI\n"); | |
2755 | ret = kvm_vcpu_ioctl(cpu, KVM_NMI); | |
2756 | if (ret < 0) { | |
2757 | fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n", | |
2758 | strerror(-ret)); | |
2759 | } | |
2760 | } | |
2761 | if (cpu->interrupt_request & CPU_INTERRUPT_SMI) { | |
2762 | qemu_mutex_lock_iothread(); | |
2763 | cpu->interrupt_request &= ~CPU_INTERRUPT_SMI; | |
2764 | qemu_mutex_unlock_iothread(); | |
2765 | DPRINTF("injected SMI\n"); | |
2766 | ret = kvm_vcpu_ioctl(cpu, KVM_SMI); | |
2767 | if (ret < 0) { | |
2768 | fprintf(stderr, "KVM: injection failed, SMI lost (%s)\n", | |
2769 | strerror(-ret)); | |
2770 | } | |
ce377af3 | 2771 | } |
276ce815 LJ |
2772 | } |
2773 | ||
15eafc2e | 2774 | if (!kvm_pic_in_kernel()) { |
4b8523ee JK |
2775 | qemu_mutex_lock_iothread(); |
2776 | } | |
2777 | ||
e0723c45 PB |
2778 | /* Force the VCPU out of its inner loop to process any INIT requests |
2779 | * or (for userspace APIC, but it is cheap to combine the checks here) | |
2780 | * pending TPR access reports. | |
2781 | */ | |
2782 | if (cpu->interrupt_request & (CPU_INTERRUPT_INIT | CPU_INTERRUPT_TPR)) { | |
fc12d72e PB |
2783 | if ((cpu->interrupt_request & CPU_INTERRUPT_INIT) && |
2784 | !(env->hflags & HF_SMM_MASK)) { | |
2785 | cpu->exit_request = 1; | |
2786 | } | |
2787 | if (cpu->interrupt_request & CPU_INTERRUPT_TPR) { | |
2788 | cpu->exit_request = 1; | |
2789 | } | |
e0723c45 | 2790 | } |
05330448 | 2791 | |
15eafc2e | 2792 | if (!kvm_pic_in_kernel()) { |
db1669bc JK |
2793 | /* Try to inject an interrupt if the guest can accept it */ |
2794 | if (run->ready_for_interrupt_injection && | |
259186a7 | 2795 | (cpu->interrupt_request & CPU_INTERRUPT_HARD) && |
db1669bc JK |
2796 | (env->eflags & IF_MASK)) { |
2797 | int irq; | |
2798 | ||
259186a7 | 2799 | cpu->interrupt_request &= ~CPU_INTERRUPT_HARD; |
db1669bc JK |
2800 | irq = cpu_get_pic_interrupt(env); |
2801 | if (irq >= 0) { | |
2802 | struct kvm_interrupt intr; | |
2803 | ||
2804 | intr.irq = irq; | |
db1669bc | 2805 | DPRINTF("injected interrupt %d\n", irq); |
1bc22652 | 2806 | ret = kvm_vcpu_ioctl(cpu, KVM_INTERRUPT, &intr); |
ce377af3 JK |
2807 | if (ret < 0) { |
2808 | fprintf(stderr, | |
2809 | "KVM: injection failed, interrupt lost (%s)\n", | |
2810 | strerror(-ret)); | |
2811 | } | |
db1669bc JK |
2812 | } |
2813 | } | |
05330448 | 2814 | |
db1669bc JK |
2815 | /* If we have an interrupt but the guest is not ready to receive an |
2816 | * interrupt, request an interrupt window exit. This will | |
2817 | * cause a return to userspace as soon as the guest is ready to | |
2818 | * receive interrupts. */ | |
259186a7 | 2819 | if ((cpu->interrupt_request & CPU_INTERRUPT_HARD)) { |
db1669bc JK |
2820 | run->request_interrupt_window = 1; |
2821 | } else { | |
2822 | run->request_interrupt_window = 0; | |
2823 | } | |
2824 | ||
2825 | DPRINTF("setting tpr\n"); | |
02e51483 | 2826 | run->cr8 = cpu_get_apic_tpr(x86_cpu->apic_state); |
4b8523ee JK |
2827 | |
2828 | qemu_mutex_unlock_iothread(); | |
db1669bc | 2829 | } |
05330448 AL |
2830 | } |
2831 | ||
4c663752 | 2832 | MemTxAttrs kvm_arch_post_run(CPUState *cpu, struct kvm_run *run) |
05330448 | 2833 | { |
20d695a9 AF |
2834 | X86CPU *x86_cpu = X86_CPU(cpu); |
2835 | CPUX86State *env = &x86_cpu->env; | |
2836 | ||
fc12d72e PB |
2837 | if (run->flags & KVM_RUN_X86_SMM) { |
2838 | env->hflags |= HF_SMM_MASK; | |
2839 | } else { | |
2840 | env->hflags &= HF_SMM_MASK; | |
2841 | } | |
b9bec74b | 2842 | if (run->if_flag) { |
05330448 | 2843 | env->eflags |= IF_MASK; |
b9bec74b | 2844 | } else { |
05330448 | 2845 | env->eflags &= ~IF_MASK; |
b9bec74b | 2846 | } |
4b8523ee JK |
2847 | |
2848 | /* We need to protect the apic state against concurrent accesses from | |
2849 | * different threads in case the userspace irqchip is used. */ | |
2850 | if (!kvm_irqchip_in_kernel()) { | |
2851 | qemu_mutex_lock_iothread(); | |
2852 | } | |
02e51483 CF |
2853 | cpu_set_apic_tpr(x86_cpu->apic_state, run->cr8); |
2854 | cpu_set_apic_base(x86_cpu->apic_state, run->apic_base); | |
4b8523ee JK |
2855 | if (!kvm_irqchip_in_kernel()) { |
2856 | qemu_mutex_unlock_iothread(); | |
2857 | } | |
f794aa4a | 2858 | return cpu_get_mem_attrs(env); |
05330448 AL |
2859 | } |
2860 | ||
20d695a9 | 2861 | int kvm_arch_process_async_events(CPUState *cs) |
0af691d7 | 2862 | { |
20d695a9 AF |
2863 | X86CPU *cpu = X86_CPU(cs); |
2864 | CPUX86State *env = &cpu->env; | |
232fc23b | 2865 | |
259186a7 | 2866 | if (cs->interrupt_request & CPU_INTERRUPT_MCE) { |
ab443475 JK |
2867 | /* We must not raise CPU_INTERRUPT_MCE if it's not supported. */ |
2868 | assert(env->mcg_cap); | |
2869 | ||
259186a7 | 2870 | cs->interrupt_request &= ~CPU_INTERRUPT_MCE; |
ab443475 | 2871 | |
dd1750d7 | 2872 | kvm_cpu_synchronize_state(cs); |
ab443475 JK |
2873 | |
2874 | if (env->exception_injected == EXCP08_DBLE) { | |
2875 | /* this means triple fault */ | |
2876 | qemu_system_reset_request(); | |
fcd7d003 | 2877 | cs->exit_request = 1; |
ab443475 JK |
2878 | return 0; |
2879 | } | |
2880 | env->exception_injected = EXCP12_MCHK; | |
2881 | env->has_error_code = 0; | |
2882 | ||
259186a7 | 2883 | cs->halted = 0; |
ab443475 JK |
2884 | if (kvm_irqchip_in_kernel() && env->mp_state == KVM_MP_STATE_HALTED) { |
2885 | env->mp_state = KVM_MP_STATE_RUNNABLE; | |
2886 | } | |
2887 | } | |
2888 | ||
fc12d72e PB |
2889 | if ((cs->interrupt_request & CPU_INTERRUPT_INIT) && |
2890 | !(env->hflags & HF_SMM_MASK)) { | |
e0723c45 PB |
2891 | kvm_cpu_synchronize_state(cs); |
2892 | do_cpu_init(cpu); | |
2893 | } | |
2894 | ||
db1669bc JK |
2895 | if (kvm_irqchip_in_kernel()) { |
2896 | return 0; | |
2897 | } | |
2898 | ||
259186a7 AF |
2899 | if (cs->interrupt_request & CPU_INTERRUPT_POLL) { |
2900 | cs->interrupt_request &= ~CPU_INTERRUPT_POLL; | |
02e51483 | 2901 | apic_poll_irq(cpu->apic_state); |
5d62c43a | 2902 | } |
259186a7 | 2903 | if (((cs->interrupt_request & CPU_INTERRUPT_HARD) && |
4601f7b0 | 2904 | (env->eflags & IF_MASK)) || |
259186a7 AF |
2905 | (cs->interrupt_request & CPU_INTERRUPT_NMI)) { |
2906 | cs->halted = 0; | |
6792a57b | 2907 | } |
259186a7 | 2908 | if (cs->interrupt_request & CPU_INTERRUPT_SIPI) { |
dd1750d7 | 2909 | kvm_cpu_synchronize_state(cs); |
232fc23b | 2910 | do_cpu_sipi(cpu); |
0af691d7 | 2911 | } |
259186a7 AF |
2912 | if (cs->interrupt_request & CPU_INTERRUPT_TPR) { |
2913 | cs->interrupt_request &= ~CPU_INTERRUPT_TPR; | |
dd1750d7 | 2914 | kvm_cpu_synchronize_state(cs); |
02e51483 | 2915 | apic_handle_tpr_access_report(cpu->apic_state, env->eip, |
d362e757 JK |
2916 | env->tpr_access_type); |
2917 | } | |
0af691d7 | 2918 | |
259186a7 | 2919 | return cs->halted; |
0af691d7 MT |
2920 | } |
2921 | ||
839b5630 | 2922 | static int kvm_handle_halt(X86CPU *cpu) |
05330448 | 2923 | { |
259186a7 | 2924 | CPUState *cs = CPU(cpu); |
839b5630 AF |
2925 | CPUX86State *env = &cpu->env; |
2926 | ||
259186a7 | 2927 | if (!((cs->interrupt_request & CPU_INTERRUPT_HARD) && |
05330448 | 2928 | (env->eflags & IF_MASK)) && |
259186a7 AF |
2929 | !(cs->interrupt_request & CPU_INTERRUPT_NMI)) { |
2930 | cs->halted = 1; | |
bb4ea393 | 2931 | return EXCP_HLT; |
05330448 AL |
2932 | } |
2933 | ||
bb4ea393 | 2934 | return 0; |
05330448 AL |
2935 | } |
2936 | ||
f7575c96 | 2937 | static int kvm_handle_tpr_access(X86CPU *cpu) |
d362e757 | 2938 | { |
f7575c96 AF |
2939 | CPUState *cs = CPU(cpu); |
2940 | struct kvm_run *run = cs->kvm_run; | |
d362e757 | 2941 | |
02e51483 | 2942 | apic_handle_tpr_access_report(cpu->apic_state, run->tpr_access.rip, |
d362e757 JK |
2943 | run->tpr_access.is_write ? TPR_ACCESS_WRITE |
2944 | : TPR_ACCESS_READ); | |
2945 | return 1; | |
2946 | } | |
2947 | ||
f17ec444 | 2948 | int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
e22a25c9 | 2949 | { |
38972938 | 2950 | static const uint8_t int3 = 0xcc; |
64bf3f4e | 2951 | |
f17ec444 AF |
2952 | if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
2953 | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&int3, 1, 1)) { | |
e22a25c9 | 2954 | return -EINVAL; |
b9bec74b | 2955 | } |
e22a25c9 AL |
2956 | return 0; |
2957 | } | |
2958 | ||
f17ec444 | 2959 | int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
e22a25c9 AL |
2960 | { |
2961 | uint8_t int3; | |
2962 | ||
f17ec444 AF |
2963 | if (cpu_memory_rw_debug(cs, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
2964 | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { | |
e22a25c9 | 2965 | return -EINVAL; |
b9bec74b | 2966 | } |
e22a25c9 AL |
2967 | return 0; |
2968 | } | |
2969 | ||
2970 | static struct { | |
2971 | target_ulong addr; | |
2972 | int len; | |
2973 | int type; | |
2974 | } hw_breakpoint[4]; | |
2975 | ||
2976 | static int nb_hw_breakpoint; | |
2977 | ||
2978 | static int find_hw_breakpoint(target_ulong addr, int len, int type) | |
2979 | { | |
2980 | int n; | |
2981 | ||
b9bec74b | 2982 | for (n = 0; n < nb_hw_breakpoint; n++) { |
e22a25c9 | 2983 | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type && |
b9bec74b | 2984 | (hw_breakpoint[n].len == len || len == -1)) { |
e22a25c9 | 2985 | return n; |
b9bec74b JK |
2986 | } |
2987 | } | |
e22a25c9 AL |
2988 | return -1; |
2989 | } | |
2990 | ||
2991 | int kvm_arch_insert_hw_breakpoint(target_ulong addr, | |
2992 | target_ulong len, int type) | |
2993 | { | |
2994 | switch (type) { | |
2995 | case GDB_BREAKPOINT_HW: | |
2996 | len = 1; | |
2997 | break; | |
2998 | case GDB_WATCHPOINT_WRITE: | |
2999 | case GDB_WATCHPOINT_ACCESS: | |
3000 | switch (len) { | |
3001 | case 1: | |
3002 | break; | |
3003 | case 2: | |
3004 | case 4: | |
3005 | case 8: | |
b9bec74b | 3006 | if (addr & (len - 1)) { |
e22a25c9 | 3007 | return -EINVAL; |
b9bec74b | 3008 | } |
e22a25c9 AL |
3009 | break; |
3010 | default: | |
3011 | return -EINVAL; | |
3012 | } | |
3013 | break; | |
3014 | default: | |
3015 | return -ENOSYS; | |
3016 | } | |
3017 | ||
b9bec74b | 3018 | if (nb_hw_breakpoint == 4) { |
e22a25c9 | 3019 | return -ENOBUFS; |
b9bec74b JK |
3020 | } |
3021 | if (find_hw_breakpoint(addr, len, type) >= 0) { | |
e22a25c9 | 3022 | return -EEXIST; |
b9bec74b | 3023 | } |
e22a25c9 AL |
3024 | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
3025 | hw_breakpoint[nb_hw_breakpoint].len = len; | |
3026 | hw_breakpoint[nb_hw_breakpoint].type = type; | |
3027 | nb_hw_breakpoint++; | |
3028 | ||
3029 | return 0; | |
3030 | } | |
3031 | ||
3032 | int kvm_arch_remove_hw_breakpoint(target_ulong addr, | |
3033 | target_ulong len, int type) | |
3034 | { | |
3035 | int n; | |
3036 | ||
3037 | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type); | |
b9bec74b | 3038 | if (n < 0) { |
e22a25c9 | 3039 | return -ENOENT; |
b9bec74b | 3040 | } |
e22a25c9 AL |
3041 | nb_hw_breakpoint--; |
3042 | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; | |
3043 | ||
3044 | return 0; | |
3045 | } | |
3046 | ||
3047 | void kvm_arch_remove_all_hw_breakpoints(void) | |
3048 | { | |
3049 | nb_hw_breakpoint = 0; | |
3050 | } | |
3051 | ||
3052 | static CPUWatchpoint hw_watchpoint; | |
3053 | ||
a60f24b5 | 3054 | static int kvm_handle_debug(X86CPU *cpu, |
48405526 | 3055 | struct kvm_debug_exit_arch *arch_info) |
e22a25c9 | 3056 | { |
ed2803da | 3057 | CPUState *cs = CPU(cpu); |
a60f24b5 | 3058 | CPUX86State *env = &cpu->env; |
f2574737 | 3059 | int ret = 0; |
e22a25c9 AL |
3060 | int n; |
3061 | ||
3062 | if (arch_info->exception == 1) { | |
3063 | if (arch_info->dr6 & (1 << 14)) { | |
ed2803da | 3064 | if (cs->singlestep_enabled) { |
f2574737 | 3065 | ret = EXCP_DEBUG; |
b9bec74b | 3066 | } |
e22a25c9 | 3067 | } else { |
b9bec74b JK |
3068 | for (n = 0; n < 4; n++) { |
3069 | if (arch_info->dr6 & (1 << n)) { | |
e22a25c9 AL |
3070 | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
3071 | case 0x0: | |
f2574737 | 3072 | ret = EXCP_DEBUG; |
e22a25c9 AL |
3073 | break; |
3074 | case 0x1: | |
f2574737 | 3075 | ret = EXCP_DEBUG; |
ff4700b0 | 3076 | cs->watchpoint_hit = &hw_watchpoint; |
e22a25c9 AL |
3077 | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
3078 | hw_watchpoint.flags = BP_MEM_WRITE; | |
3079 | break; | |
3080 | case 0x3: | |
f2574737 | 3081 | ret = EXCP_DEBUG; |
ff4700b0 | 3082 | cs->watchpoint_hit = &hw_watchpoint; |
e22a25c9 AL |
3083 | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
3084 | hw_watchpoint.flags = BP_MEM_ACCESS; | |
3085 | break; | |
3086 | } | |
b9bec74b JK |
3087 | } |
3088 | } | |
e22a25c9 | 3089 | } |
ff4700b0 | 3090 | } else if (kvm_find_sw_breakpoint(cs, arch_info->pc)) { |
f2574737 | 3091 | ret = EXCP_DEBUG; |
b9bec74b | 3092 | } |
f2574737 | 3093 | if (ret == 0) { |
ff4700b0 | 3094 | cpu_synchronize_state(cs); |
48405526 | 3095 | assert(env->exception_injected == -1); |
b0b1d690 | 3096 | |
f2574737 | 3097 | /* pass to guest */ |
48405526 BS |
3098 | env->exception_injected = arch_info->exception; |
3099 | env->has_error_code = 0; | |
b0b1d690 | 3100 | } |
e22a25c9 | 3101 | |
f2574737 | 3102 | return ret; |
e22a25c9 AL |
3103 | } |
3104 | ||
20d695a9 | 3105 | void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg) |
e22a25c9 AL |
3106 | { |
3107 | const uint8_t type_code[] = { | |
3108 | [GDB_BREAKPOINT_HW] = 0x0, | |
3109 | [GDB_WATCHPOINT_WRITE] = 0x1, | |
3110 | [GDB_WATCHPOINT_ACCESS] = 0x3 | |
3111 | }; | |
3112 | const uint8_t len_code[] = { | |
3113 | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 | |
3114 | }; | |
3115 | int n; | |
3116 | ||
a60f24b5 | 3117 | if (kvm_sw_breakpoints_active(cpu)) { |
e22a25c9 | 3118 | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
b9bec74b | 3119 | } |
e22a25c9 AL |
3120 | if (nb_hw_breakpoint > 0) { |
3121 | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; | |
3122 | dbg->arch.debugreg[7] = 0x0600; | |
3123 | for (n = 0; n < nb_hw_breakpoint; n++) { | |
3124 | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; | |
3125 | dbg->arch.debugreg[7] |= (2 << (n * 2)) | | |
3126 | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | | |
95c077c9 | 3127 | ((uint32_t)len_code[hw_breakpoint[n].len] << (18 + n*4)); |
e22a25c9 AL |
3128 | } |
3129 | } | |
3130 | } | |
4513d923 | 3131 | |
2a4dac83 JK |
3132 | static bool host_supports_vmx(void) |
3133 | { | |
3134 | uint32_t ecx, unused; | |
3135 | ||
3136 | host_cpuid(1, 0, &unused, &unused, &ecx, &unused); | |
3137 | return ecx & CPUID_EXT_VMX; | |
3138 | } | |
3139 | ||
3140 | #define VMX_INVALID_GUEST_STATE 0x80000021 | |
3141 | ||
20d695a9 | 3142 | int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) |
2a4dac83 | 3143 | { |
20d695a9 | 3144 | X86CPU *cpu = X86_CPU(cs); |
2a4dac83 JK |
3145 | uint64_t code; |
3146 | int ret; | |
3147 | ||
3148 | switch (run->exit_reason) { | |
3149 | case KVM_EXIT_HLT: | |
3150 | DPRINTF("handle_hlt\n"); | |
4b8523ee | 3151 | qemu_mutex_lock_iothread(); |
839b5630 | 3152 | ret = kvm_handle_halt(cpu); |
4b8523ee | 3153 | qemu_mutex_unlock_iothread(); |
2a4dac83 JK |
3154 | break; |
3155 | case KVM_EXIT_SET_TPR: | |
3156 | ret = 0; | |
3157 | break; | |
d362e757 | 3158 | case KVM_EXIT_TPR_ACCESS: |
4b8523ee | 3159 | qemu_mutex_lock_iothread(); |
f7575c96 | 3160 | ret = kvm_handle_tpr_access(cpu); |
4b8523ee | 3161 | qemu_mutex_unlock_iothread(); |
d362e757 | 3162 | break; |
2a4dac83 JK |
3163 | case KVM_EXIT_FAIL_ENTRY: |
3164 | code = run->fail_entry.hardware_entry_failure_reason; | |
3165 | fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n", | |
3166 | code); | |
3167 | if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) { | |
3168 | fprintf(stderr, | |
12619721 | 3169 | "\nIf you're running a guest on an Intel machine without " |
2a4dac83 JK |
3170 | "unrestricted mode\n" |
3171 | "support, the failure can be most likely due to the guest " | |
3172 | "entering an invalid\n" | |
3173 | "state for Intel VT. For example, the guest maybe running " | |
3174 | "in big real mode\n" | |
3175 | "which is not supported on less recent Intel processors." | |
3176 | "\n\n"); | |
3177 | } | |
3178 | ret = -1; | |
3179 | break; | |
3180 | case KVM_EXIT_EXCEPTION: | |
3181 | fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n", | |
3182 | run->ex.exception, run->ex.error_code); | |
3183 | ret = -1; | |
3184 | break; | |
f2574737 JK |
3185 | case KVM_EXIT_DEBUG: |
3186 | DPRINTF("kvm_exit_debug\n"); | |
4b8523ee | 3187 | qemu_mutex_lock_iothread(); |
a60f24b5 | 3188 | ret = kvm_handle_debug(cpu, &run->debug.arch); |
4b8523ee | 3189 | qemu_mutex_unlock_iothread(); |
f2574737 | 3190 | break; |
50efe82c AS |
3191 | case KVM_EXIT_HYPERV: |
3192 | ret = kvm_hv_handle_exit(cpu, &run->hyperv); | |
3193 | break; | |
15eafc2e PB |
3194 | case KVM_EXIT_IOAPIC_EOI: |
3195 | ioapic_eoi_broadcast(run->eoi.vector); | |
3196 | ret = 0; | |
3197 | break; | |
2a4dac83 JK |
3198 | default: |
3199 | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason); | |
3200 | ret = -1; | |
3201 | break; | |
3202 | } | |
3203 | ||
3204 | return ret; | |
3205 | } | |
3206 | ||
20d695a9 | 3207 | bool kvm_arch_stop_on_emulation_error(CPUState *cs) |
4513d923 | 3208 | { |
20d695a9 AF |
3209 | X86CPU *cpu = X86_CPU(cs); |
3210 | CPUX86State *env = &cpu->env; | |
3211 | ||
dd1750d7 | 3212 | kvm_cpu_synchronize_state(cs); |
b9bec74b JK |
3213 | return !(env->cr[0] & CR0_PE_MASK) || |
3214 | ((env->segs[R_CS].selector & 3) != 3); | |
4513d923 | 3215 | } |
84b058d7 JK |
3216 | |
3217 | void kvm_arch_init_irq_routing(KVMState *s) | |
3218 | { | |
3219 | if (!kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) { | |
3220 | /* If kernel can't do irq routing, interrupt source | |
3221 | * override 0->2 cannot be set up as required by HPET. | |
3222 | * So we have to disable it. | |
3223 | */ | |
3224 | no_hpet = 1; | |
3225 | } | |
cc7e0ddf | 3226 | /* We know at this point that we're using the in-kernel |
614e41bc | 3227 | * irqchip, so we can use irqfds, and on x86 we know |
f3e1bed8 | 3228 | * we can use msi via irqfd and GSI routing. |
cc7e0ddf | 3229 | */ |
614e41bc | 3230 | kvm_msi_via_irqfd_allowed = true; |
f3e1bed8 | 3231 | kvm_gsi_routing_allowed = true; |
15eafc2e PB |
3232 | |
3233 | if (kvm_irqchip_is_split()) { | |
3234 | int i; | |
3235 | ||
3236 | /* If the ioapic is in QEMU and the lapics are in KVM, reserve | |
3237 | MSI routes for signaling interrupts to the local apics. */ | |
3238 | for (i = 0; i < IOAPIC_NUM_PINS; i++) { | |
d1f6af6a | 3239 | if (kvm_irqchip_add_msi_route(s, 0, NULL) < 0) { |
15eafc2e PB |
3240 | error_report("Could not enable split IRQ mode."); |
3241 | exit(1); | |
3242 | } | |
3243 | } | |
3244 | } | |
3245 | } | |
3246 | ||
3247 | int kvm_arch_irqchip_create(MachineState *ms, KVMState *s) | |
3248 | { | |
3249 | int ret; | |
3250 | if (machine_kernel_irqchip_split(ms)) { | |
3251 | ret = kvm_vm_enable_cap(s, KVM_CAP_SPLIT_IRQCHIP, 0, 24); | |
3252 | if (ret) { | |
df3c286c | 3253 | error_report("Could not enable split irqchip mode: %s", |
15eafc2e PB |
3254 | strerror(-ret)); |
3255 | exit(1); | |
3256 | } else { | |
3257 | DPRINTF("Enabled KVM_CAP_SPLIT_IRQCHIP\n"); | |
3258 | kvm_split_irqchip = true; | |
3259 | return 1; | |
3260 | } | |
3261 | } else { | |
3262 | return 0; | |
3263 | } | |
84b058d7 | 3264 | } |
b139bd30 JK |
3265 | |
3266 | /* Classic KVM device assignment interface. Will remain x86 only. */ | |
3267 | int kvm_device_pci_assign(KVMState *s, PCIHostDeviceAddress *dev_addr, | |
3268 | uint32_t flags, uint32_t *dev_id) | |
3269 | { | |
3270 | struct kvm_assigned_pci_dev dev_data = { | |
3271 | .segnr = dev_addr->domain, | |
3272 | .busnr = dev_addr->bus, | |
3273 | .devfn = PCI_DEVFN(dev_addr->slot, dev_addr->function), | |
3274 | .flags = flags, | |
3275 | }; | |
3276 | int ret; | |
3277 | ||
3278 | dev_data.assigned_dev_id = | |
3279 | (dev_addr->domain << 16) | (dev_addr->bus << 8) | dev_data.devfn; | |
3280 | ||
3281 | ret = kvm_vm_ioctl(s, KVM_ASSIGN_PCI_DEVICE, &dev_data); | |
3282 | if (ret < 0) { | |
3283 | return ret; | |
3284 | } | |
3285 | ||
3286 | *dev_id = dev_data.assigned_dev_id; | |
3287 | ||
3288 | return 0; | |
3289 | } | |
3290 | ||
3291 | int kvm_device_pci_deassign(KVMState *s, uint32_t dev_id) | |
3292 | { | |
3293 | struct kvm_assigned_pci_dev dev_data = { | |
3294 | .assigned_dev_id = dev_id, | |
3295 | }; | |
3296 | ||
3297 | return kvm_vm_ioctl(s, KVM_DEASSIGN_PCI_DEVICE, &dev_data); | |
3298 | } | |
3299 | ||
3300 | static int kvm_assign_irq_internal(KVMState *s, uint32_t dev_id, | |
3301 | uint32_t irq_type, uint32_t guest_irq) | |
3302 | { | |
3303 | struct kvm_assigned_irq assigned_irq = { | |
3304 | .assigned_dev_id = dev_id, | |
3305 | .guest_irq = guest_irq, | |
3306 | .flags = irq_type, | |
3307 | }; | |
3308 | ||
3309 | if (kvm_check_extension(s, KVM_CAP_ASSIGN_DEV_IRQ)) { | |
3310 | return kvm_vm_ioctl(s, KVM_ASSIGN_DEV_IRQ, &assigned_irq); | |
3311 | } else { | |
3312 | return kvm_vm_ioctl(s, KVM_ASSIGN_IRQ, &assigned_irq); | |
3313 | } | |
3314 | } | |
3315 | ||
3316 | int kvm_device_intx_assign(KVMState *s, uint32_t dev_id, bool use_host_msi, | |
3317 | uint32_t guest_irq) | |
3318 | { | |
3319 | uint32_t irq_type = KVM_DEV_IRQ_GUEST_INTX | | |
3320 | (use_host_msi ? KVM_DEV_IRQ_HOST_MSI : KVM_DEV_IRQ_HOST_INTX); | |
3321 | ||
3322 | return kvm_assign_irq_internal(s, dev_id, irq_type, guest_irq); | |
3323 | } | |
3324 | ||
3325 | int kvm_device_intx_set_mask(KVMState *s, uint32_t dev_id, bool masked) | |
3326 | { | |
3327 | struct kvm_assigned_pci_dev dev_data = { | |
3328 | .assigned_dev_id = dev_id, | |
3329 | .flags = masked ? KVM_DEV_ASSIGN_MASK_INTX : 0, | |
3330 | }; | |
3331 | ||
3332 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_INTX_MASK, &dev_data); | |
3333 | } | |
3334 | ||
3335 | static int kvm_deassign_irq_internal(KVMState *s, uint32_t dev_id, | |
3336 | uint32_t type) | |
3337 | { | |
3338 | struct kvm_assigned_irq assigned_irq = { | |
3339 | .assigned_dev_id = dev_id, | |
3340 | .flags = type, | |
3341 | }; | |
3342 | ||
3343 | return kvm_vm_ioctl(s, KVM_DEASSIGN_DEV_IRQ, &assigned_irq); | |
3344 | } | |
3345 | ||
3346 | int kvm_device_intx_deassign(KVMState *s, uint32_t dev_id, bool use_host_msi) | |
3347 | { | |
3348 | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_INTX | | |
3349 | (use_host_msi ? KVM_DEV_IRQ_HOST_MSI : KVM_DEV_IRQ_HOST_INTX)); | |
3350 | } | |
3351 | ||
3352 | int kvm_device_msi_assign(KVMState *s, uint32_t dev_id, int virq) | |
3353 | { | |
3354 | return kvm_assign_irq_internal(s, dev_id, KVM_DEV_IRQ_HOST_MSI | | |
3355 | KVM_DEV_IRQ_GUEST_MSI, virq); | |
3356 | } | |
3357 | ||
3358 | int kvm_device_msi_deassign(KVMState *s, uint32_t dev_id) | |
3359 | { | |
3360 | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSI | | |
3361 | KVM_DEV_IRQ_HOST_MSI); | |
3362 | } | |
3363 | ||
3364 | bool kvm_device_msix_supported(KVMState *s) | |
3365 | { | |
3366 | /* The kernel lacks a corresponding KVM_CAP, so we probe by calling | |
3367 | * KVM_ASSIGN_SET_MSIX_NR with an invalid parameter. */ | |
3368 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_NR, NULL) == -EFAULT; | |
3369 | } | |
3370 | ||
3371 | int kvm_device_msix_init_vectors(KVMState *s, uint32_t dev_id, | |
3372 | uint32_t nr_vectors) | |
3373 | { | |
3374 | struct kvm_assigned_msix_nr msix_nr = { | |
3375 | .assigned_dev_id = dev_id, | |
3376 | .entry_nr = nr_vectors, | |
3377 | }; | |
3378 | ||
3379 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_NR, &msix_nr); | |
3380 | } | |
3381 | ||
3382 | int kvm_device_msix_set_vector(KVMState *s, uint32_t dev_id, uint32_t vector, | |
3383 | int virq) | |
3384 | { | |
3385 | struct kvm_assigned_msix_entry msix_entry = { | |
3386 | .assigned_dev_id = dev_id, | |
3387 | .gsi = virq, | |
3388 | .entry = vector, | |
3389 | }; | |
3390 | ||
3391 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_ENTRY, &msix_entry); | |
3392 | } | |
3393 | ||
3394 | int kvm_device_msix_assign(KVMState *s, uint32_t dev_id) | |
3395 | { | |
3396 | return kvm_assign_irq_internal(s, dev_id, KVM_DEV_IRQ_HOST_MSIX | | |
3397 | KVM_DEV_IRQ_GUEST_MSIX, 0); | |
3398 | } | |
3399 | ||
3400 | int kvm_device_msix_deassign(KVMState *s, uint32_t dev_id) | |
3401 | { | |
3402 | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSIX | | |
3403 | KVM_DEV_IRQ_HOST_MSIX); | |
3404 | } | |
9e03a040 FB |
3405 | |
3406 | int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, | |
dc9f06ca | 3407 | uint64_t address, uint32_t data, PCIDevice *dev) |
9e03a040 | 3408 | { |
8b5ed7df PX |
3409 | X86IOMMUState *iommu = x86_iommu_get_default(); |
3410 | ||
3411 | if (iommu) { | |
3412 | int ret; | |
3413 | MSIMessage src, dst; | |
3414 | X86IOMMUClass *class = X86_IOMMU_GET_CLASS(iommu); | |
3415 | ||
3416 | src.address = route->u.msi.address_hi; | |
3417 | src.address <<= VTD_MSI_ADDR_HI_SHIFT; | |
3418 | src.address |= route->u.msi.address_lo; | |
3419 | src.data = route->u.msi.data; | |
3420 | ||
3421 | ret = class->int_remap(iommu, &src, &dst, dev ? \ | |
3422 | pci_requester_id(dev) : \ | |
3423 | X86_IOMMU_SID_INVALID); | |
3424 | if (ret) { | |
3425 | trace_kvm_x86_fixup_msi_error(route->gsi); | |
3426 | return 1; | |
3427 | } | |
3428 | ||
3429 | route->u.msi.address_hi = dst.address >> VTD_MSI_ADDR_HI_SHIFT; | |
3430 | route->u.msi.address_lo = dst.address & VTD_MSI_ADDR_LO_MASK; | |
3431 | route->u.msi.data = dst.data; | |
3432 | } | |
3433 | ||
9e03a040 FB |
3434 | return 0; |
3435 | } | |
1850b6b7 | 3436 | |
38d87493 PX |
3437 | typedef struct MSIRouteEntry MSIRouteEntry; |
3438 | ||
3439 | struct MSIRouteEntry { | |
3440 | PCIDevice *dev; /* Device pointer */ | |
3441 | int vector; /* MSI/MSIX vector index */ | |
3442 | int virq; /* Virtual IRQ index */ | |
3443 | QLIST_ENTRY(MSIRouteEntry) list; | |
3444 | }; | |
3445 | ||
3446 | /* List of used GSI routes */ | |
3447 | static QLIST_HEAD(, MSIRouteEntry) msi_route_list = \ | |
3448 | QLIST_HEAD_INITIALIZER(msi_route_list); | |
3449 | ||
e1d4fb2d PX |
3450 | static void kvm_update_msi_routes_all(void *private, bool global, |
3451 | uint32_t index, uint32_t mask) | |
3452 | { | |
3453 | int cnt = 0; | |
3454 | MSIRouteEntry *entry; | |
3455 | MSIMessage msg; | |
3456 | /* TODO: explicit route update */ | |
3457 | QLIST_FOREACH(entry, &msi_route_list, list) { | |
3458 | cnt++; | |
3459 | msg = pci_get_msi_message(entry->dev, entry->vector); | |
3460 | kvm_irqchip_update_msi_route(kvm_state, entry->virq, | |
3461 | msg, entry->dev); | |
3462 | } | |
3f1fea0f | 3463 | kvm_irqchip_commit_routes(kvm_state); |
e1d4fb2d PX |
3464 | trace_kvm_x86_update_msi_routes(cnt); |
3465 | } | |
3466 | ||
38d87493 PX |
3467 | int kvm_arch_add_msi_route_post(struct kvm_irq_routing_entry *route, |
3468 | int vector, PCIDevice *dev) | |
3469 | { | |
e1d4fb2d | 3470 | static bool notify_list_inited = false; |
38d87493 PX |
3471 | MSIRouteEntry *entry; |
3472 | ||
3473 | if (!dev) { | |
3474 | /* These are (possibly) IOAPIC routes only used for split | |
3475 | * kernel irqchip mode, while what we are housekeeping are | |
3476 | * PCI devices only. */ | |
3477 | return 0; | |
3478 | } | |
3479 | ||
3480 | entry = g_new0(MSIRouteEntry, 1); | |
3481 | entry->dev = dev; | |
3482 | entry->vector = vector; | |
3483 | entry->virq = route->gsi; | |
3484 | QLIST_INSERT_HEAD(&msi_route_list, entry, list); | |
3485 | ||
3486 | trace_kvm_x86_add_msi_route(route->gsi); | |
e1d4fb2d PX |
3487 | |
3488 | if (!notify_list_inited) { | |
3489 | /* For the first time we do add route, add ourselves into | |
3490 | * IOMMU's IEC notify list if needed. */ | |
3491 | X86IOMMUState *iommu = x86_iommu_get_default(); | |
3492 | if (iommu) { | |
3493 | x86_iommu_iec_register_notifier(iommu, | |
3494 | kvm_update_msi_routes_all, | |
3495 | NULL); | |
3496 | } | |
3497 | notify_list_inited = true; | |
3498 | } | |
38d87493 PX |
3499 | return 0; |
3500 | } | |
3501 | ||
3502 | int kvm_arch_release_virq_post(int virq) | |
3503 | { | |
3504 | MSIRouteEntry *entry, *next; | |
3505 | QLIST_FOREACH_SAFE(entry, &msi_route_list, list, next) { | |
3506 | if (entry->virq == virq) { | |
3507 | trace_kvm_x86_remove_msi_route(virq); | |
3508 | QLIST_REMOVE(entry, list); | |
3509 | break; | |
3510 | } | |
3511 | } | |
9e03a040 FB |
3512 | return 0; |
3513 | } | |
1850b6b7 EA |
3514 | |
3515 | int kvm_arch_msi_data_to_gsi(uint32_t data) | |
3516 | { | |
3517 | abort(); | |
3518 | } |