aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 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 | |
| 15 | #include <sys/types.h> |
| 16 | #include <sys/ioctl.h> |
| 17 | #include <sys/mman.h> |
Marcelo Tosatti | 25d2e36 | 2010-10-21 13:35:04 -0200 | [diff] [blame] | 18 | #include <sys/utsname.h> |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 19 | |
| 20 | #include <linux/kvm.h> |
Jan Kiszka | 5802e06 | 2011-06-08 16:10:58 +0200 | [diff] [blame] | 21 | #include <linux/kvm_para.h> |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 22 | |
| 23 | #include "qemu-common.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 24 | #include "sysemu/sysemu.h" |
| 25 | #include "sysemu/kvm.h" |
Peter Maydell | 1d31f66 | 2012-07-26 15:35:13 +0100 | [diff] [blame] | 26 | #include "kvm_i386.h" |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 27 | #include "cpu.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 28 | #include "exec/gdbstub.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 29 | #include "qemu/host-utils.h" |
| 30 | #include "qemu/config-file.h" |
Paolo Bonzini | 0d09e41 | 2013-02-05 17:06:20 +0100 | [diff] [blame] | 31 | #include "hw/i386/pc.h" |
| 32 | #include "hw/i386/apic.h" |
Paolo Bonzini | 022c62c | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 33 | #include "exec/ioport.h" |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 34 | #include <asm/hyperv.h> |
Michael S. Tsirkin | a2cb15b | 2012-12-12 14:24:50 +0200 | [diff] [blame] | 35 | #include "hw/pci/pci.h" |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 36 | |
| 37 | //#define DEBUG_KVM |
| 38 | |
| 39 | #ifdef DEBUG_KVM |
Blue Swirl | 8c0d577 | 2010-04-18 14:22:14 +0000 | [diff] [blame] | 40 | #define DPRINTF(fmt, ...) \ |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 41 | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
| 42 | #else |
Blue Swirl | 8c0d577 | 2010-04-18 14:22:14 +0000 | [diff] [blame] | 43 | #define DPRINTF(fmt, ...) \ |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 44 | do { } while (0) |
| 45 | #endif |
| 46 | |
Glauber Costa | 1a03675 | 2009-10-22 10:26:56 -0200 | [diff] [blame] | 47 | #define MSR_KVM_WALL_CLOCK 0x11 |
| 48 | #define MSR_KVM_SYSTEM_TIME 0x12 |
| 49 | |
Marcelo Tosatti | c0532a7 | 2010-10-11 15:31:21 -0300 | [diff] [blame] | 50 | #ifndef BUS_MCEERR_AR |
| 51 | #define BUS_MCEERR_AR 4 |
| 52 | #endif |
| 53 | #ifndef BUS_MCEERR_AO |
| 54 | #define BUS_MCEERR_AO 5 |
| 55 | #endif |
| 56 | |
Jan Kiszka | 94a8d39 | 2011-01-21 21:48:17 +0100 | [diff] [blame] | 57 | const KVMCapabilityInfo kvm_arch_required_capabilities[] = { |
| 58 | KVM_CAP_INFO(SET_TSS_ADDR), |
| 59 | KVM_CAP_INFO(EXT_CPUID), |
| 60 | KVM_CAP_INFO(MP_STATE), |
| 61 | KVM_CAP_LAST_INFO |
| 62 | }; |
Marcelo Tosatti | 25d2e36 | 2010-10-21 13:35:04 -0200 | [diff] [blame] | 63 | |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 64 | static bool has_msr_star; |
| 65 | static bool has_msr_hsave_pa; |
Will Auld | f28558d | 2012-11-26 21:32:18 -0800 | [diff] [blame] | 66 | static bool has_msr_tsc_adjust; |
Liu, Jinsong | aa82ba5 | 2011-10-05 16:52:32 -0300 | [diff] [blame] | 67 | static bool has_msr_tsc_deadline; |
Liu Jinsong | df67696 | 2013-08-19 09:33:30 +0800 | [diff] [blame] | 68 | static bool has_msr_feature_control; |
Jan Kiszka | c5999bf | 2011-01-21 21:48:22 +0100 | [diff] [blame] | 69 | static bool has_msr_async_pf_en; |
Michael S. Tsirkin | bc9a839 | 2012-08-28 20:43:56 +0300 | [diff] [blame] | 70 | static bool has_msr_pv_eoi_en; |
Avi Kivity | 21e87c4 | 2011-10-04 16:26:35 +0200 | [diff] [blame] | 71 | static bool has_msr_misc_enable; |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 72 | static bool has_msr_bndcfgs; |
Marcelo Tosatti | 917367a | 2013-02-19 23:27:20 -0300 | [diff] [blame] | 73 | static bool has_msr_kvm_steal_time; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 74 | static int lm_capable_kernel; |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 75 | static bool has_msr_hv_hypercall; |
| 76 | static bool has_msr_hv_vapic; |
Vadim Rozenfeld | 48a5f3b | 2014-01-24 00:40:49 +1100 | [diff] [blame] | 77 | static bool has_msr_hv_tsc; |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 78 | |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 79 | static bool has_msr_architectural_pmu; |
| 80 | static uint32_t num_architectural_pmu_counters; |
| 81 | |
Peter Maydell | 1d31f66 | 2012-07-26 15:35:13 +0100 | [diff] [blame] | 82 | bool kvm_allows_irq0_override(void) |
| 83 | { |
| 84 | return !kvm_irqchip_in_kernel() || kvm_has_gsi_routing(); |
| 85 | } |
| 86 | |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 87 | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
| 88 | { |
| 89 | struct kvm_cpuid2 *cpuid; |
| 90 | int r, size; |
| 91 | |
| 92 | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 93 | cpuid = (struct kvm_cpuid2 *)g_malloc0(size); |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 94 | cpuid->nent = max; |
| 95 | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); |
Mark McLoughlin | 76ae317 | 2009-05-19 18:55:21 +0100 | [diff] [blame] | 96 | if (r == 0 && cpuid->nent >= max) { |
| 97 | r = -E2BIG; |
| 98 | } |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 99 | if (r < 0) { |
| 100 | if (r == -E2BIG) { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 101 | g_free(cpuid); |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 102 | return NULL; |
| 103 | } else { |
| 104 | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n", |
| 105 | strerror(-r)); |
| 106 | exit(1); |
| 107 | } |
| 108 | } |
| 109 | return cpuid; |
| 110 | } |
| 111 | |
Eduardo Habkost | dd87f8a | 2012-10-04 17:48:58 -0300 | [diff] [blame] | 112 | /* Run KVM_GET_SUPPORTED_CPUID ioctl(), allocating a buffer large enough |
| 113 | * for all entries. |
| 114 | */ |
| 115 | static struct kvm_cpuid2 *get_supported_cpuid(KVMState *s) |
| 116 | { |
| 117 | struct kvm_cpuid2 *cpuid; |
| 118 | int max = 1; |
| 119 | while ((cpuid = try_get_cpuid(s, max)) == NULL) { |
| 120 | max *= 2; |
| 121 | } |
| 122 | return cpuid; |
| 123 | } |
| 124 | |
Stefan Weil | a443bc3 | 2014-03-16 15:03:41 +0100 | [diff] [blame] | 125 | static const struct kvm_para_features { |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 126 | int cap; |
| 127 | int feature; |
| 128 | } para_features[] = { |
| 129 | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, |
| 130 | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, |
| 131 | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 132 | { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 133 | { -1, -1 } |
| 134 | }; |
| 135 | |
Jan Kiszka | ba9bc59 | 2011-06-08 16:11:05 +0200 | [diff] [blame] | 136 | static int get_para_features(KVMState *s) |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 137 | { |
| 138 | int i, features = 0; |
| 139 | |
| 140 | for (i = 0; i < ARRAY_SIZE(para_features) - 1; i++) { |
Jan Kiszka | ba9bc59 | 2011-06-08 16:11:05 +0200 | [diff] [blame] | 141 | if (kvm_check_extension(s, para_features[i].cap)) { |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 142 | features |= (1 << para_features[i].feature); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | return features; |
| 147 | } |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 148 | |
| 149 | |
Eduardo Habkost | 829ae2f | 2012-10-04 17:48:56 -0300 | [diff] [blame] | 150 | /* Returns the value for a specific register on the cpuid entry |
| 151 | */ |
| 152 | static uint32_t cpuid_entry_get_reg(struct kvm_cpuid_entry2 *entry, int reg) |
| 153 | { |
| 154 | uint32_t ret = 0; |
| 155 | switch (reg) { |
| 156 | case R_EAX: |
| 157 | ret = entry->eax; |
| 158 | break; |
| 159 | case R_EBX: |
| 160 | ret = entry->ebx; |
| 161 | break; |
| 162 | case R_ECX: |
| 163 | ret = entry->ecx; |
| 164 | break; |
| 165 | case R_EDX: |
| 166 | ret = entry->edx; |
| 167 | break; |
| 168 | } |
| 169 | return ret; |
| 170 | } |
| 171 | |
Eduardo Habkost | 4fb73f1 | 2012-10-04 17:48:57 -0300 | [diff] [blame] | 172 | /* Find matching entry for function/index on kvm_cpuid2 struct |
| 173 | */ |
| 174 | static struct kvm_cpuid_entry2 *cpuid_find_entry(struct kvm_cpuid2 *cpuid, |
| 175 | uint32_t function, |
| 176 | uint32_t index) |
| 177 | { |
| 178 | int i; |
| 179 | for (i = 0; i < cpuid->nent; ++i) { |
| 180 | if (cpuid->entries[i].function == function && |
| 181 | cpuid->entries[i].index == index) { |
| 182 | return &cpuid->entries[i]; |
| 183 | } |
| 184 | } |
| 185 | /* not found: */ |
| 186 | return NULL; |
| 187 | } |
| 188 | |
Jan Kiszka | ba9bc59 | 2011-06-08 16:11:05 +0200 | [diff] [blame] | 189 | uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, |
Sheng Yang | c958a8b | 2010-06-17 15:18:13 +0800 | [diff] [blame] | 190 | uint32_t index, int reg) |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 191 | { |
| 192 | struct kvm_cpuid2 *cpuid; |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 193 | uint32_t ret = 0; |
| 194 | uint32_t cpuid_1_edx; |
Eduardo Habkost | 8c723b7 | 2012-10-04 17:48:54 -0300 | [diff] [blame] | 195 | bool found = false; |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 196 | |
Eduardo Habkost | dd87f8a | 2012-10-04 17:48:58 -0300 | [diff] [blame] | 197 | cpuid = get_supported_cpuid(s); |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 198 | |
Eduardo Habkost | 4fb73f1 | 2012-10-04 17:48:57 -0300 | [diff] [blame] | 199 | struct kvm_cpuid_entry2 *entry = cpuid_find_entry(cpuid, function, index); |
| 200 | if (entry) { |
| 201 | found = true; |
| 202 | ret = cpuid_entry_get_reg(entry, reg); |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 203 | } |
| 204 | |
Eduardo Habkost | 7b46e5c | 2012-10-04 17:48:53 -0300 | [diff] [blame] | 205 | /* Fixups for the data returned by KVM, below */ |
| 206 | |
Eduardo Habkost | c2acb02 | 2012-10-04 17:48:59 -0300 | [diff] [blame] | 207 | if (function == 1 && reg == R_EDX) { |
| 208 | /* KVM before 2.6.30 misreports the following features */ |
| 209 | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; |
Eduardo Habkost | 84bd945 | 2012-10-04 17:49:00 -0300 | [diff] [blame] | 210 | } else if (function == 1 && reg == R_ECX) { |
| 211 | /* We can set the hypervisor flag, even if KVM does not return it on |
| 212 | * GET_SUPPORTED_CPUID |
| 213 | */ |
| 214 | ret |= CPUID_EXT_HYPERVISOR; |
Eduardo Habkost | ac67ee2 | 2012-10-04 17:49:01 -0300 | [diff] [blame] | 215 | /* tsc-deadline flag is not returned by GET_SUPPORTED_CPUID, but it |
| 216 | * can be enabled if the kernel has KVM_CAP_TSC_DEADLINE_TIMER, |
| 217 | * and the irqchip is in the kernel. |
| 218 | */ |
| 219 | if (kvm_irqchip_in_kernel() && |
| 220 | kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { |
| 221 | ret |= CPUID_EXT_TSC_DEADLINE_TIMER; |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 222 | } |
Eduardo Habkost | 41e5e76 | 2012-10-04 17:49:02 -0300 | [diff] [blame] | 223 | |
| 224 | /* x2apic is reported by GET_SUPPORTED_CPUID, but it can't be enabled |
| 225 | * without the in-kernel irqchip |
| 226 | */ |
| 227 | if (!kvm_irqchip_in_kernel()) { |
| 228 | ret &= ~CPUID_EXT_X2APIC; |
| 229 | } |
Eduardo Habkost | c2acb02 | 2012-10-04 17:48:59 -0300 | [diff] [blame] | 230 | } else if (function == 0x80000001 && reg == R_EDX) { |
| 231 | /* On Intel, kvm returns cpuid according to the Intel spec, |
| 232 | * so add missing bits according to the AMD spec: |
| 233 | */ |
| 234 | cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); |
| 235 | ret |= cpuid_1_edx & CPUID_EXT2_AMD_ALIASES; |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 236 | } |
| 237 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 238 | g_free(cpuid); |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 239 | |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 240 | /* fallback for older kernels */ |
Eduardo Habkost | 8c723b7 | 2012-10-04 17:48:54 -0300 | [diff] [blame] | 241 | if ((function == KVM_CPUID_FEATURES) && !found) { |
Jan Kiszka | ba9bc59 | 2011-06-08 16:11:05 +0200 | [diff] [blame] | 242 | ret = get_para_features(s); |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 243 | } |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 244 | |
Avi Kivity | b827df5 | 2009-05-03 17:04:01 +0300 | [diff] [blame] | 245 | return ret; |
| 246 | } |
| 247 | |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 248 | typedef struct HWPoisonPage { |
| 249 | ram_addr_t ram_addr; |
| 250 | QLIST_ENTRY(HWPoisonPage) list; |
| 251 | } HWPoisonPage; |
| 252 | |
| 253 | static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list = |
| 254 | QLIST_HEAD_INITIALIZER(hwpoison_page_list); |
| 255 | |
| 256 | static void kvm_unpoison_all(void *param) |
| 257 | { |
| 258 | HWPoisonPage *page, *next_page; |
| 259 | |
| 260 | QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) { |
| 261 | QLIST_REMOVE(page, list); |
| 262 | qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 263 | g_free(page); |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 264 | } |
| 265 | } |
| 266 | |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 267 | static void kvm_hwpoison_page_add(ram_addr_t ram_addr) |
| 268 | { |
| 269 | HWPoisonPage *page; |
| 270 | |
| 271 | QLIST_FOREACH(page, &hwpoison_page_list, list) { |
| 272 | if (page->ram_addr == ram_addr) { |
| 273 | return; |
| 274 | } |
| 275 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 276 | page = g_malloc(sizeof(HWPoisonPage)); |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 277 | page->ram_addr = ram_addr; |
| 278 | QLIST_INSERT_HEAD(&hwpoison_page_list, page, list); |
| 279 | } |
| 280 | |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 281 | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
| 282 | int *max_banks) |
| 283 | { |
| 284 | int r; |
| 285 | |
Lai Jiangshan | 14a0951 | 2010-12-10 15:52:36 +0800 | [diff] [blame] | 286 | r = kvm_check_extension(s, KVM_CAP_MCE); |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 287 | if (r > 0) { |
| 288 | *max_banks = r; |
| 289 | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap); |
| 290 | } |
| 291 | return -ENOSYS; |
| 292 | } |
| 293 | |
Andreas Färber | bee615d | 2012-05-03 15:13:58 +0200 | [diff] [blame] | 294 | static void kvm_mce_inject(X86CPU *cpu, hwaddr paddr, int code) |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 295 | { |
Andreas Färber | bee615d | 2012-05-03 15:13:58 +0200 | [diff] [blame] | 296 | CPUX86State *env = &cpu->env; |
Jan Kiszka | c34d440 | 2011-03-02 08:56:16 +0100 | [diff] [blame] | 297 | uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | |
| 298 | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S; |
| 299 | uint64_t mcg_status = MCG_STATUS_MCIP; |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 300 | |
Jan Kiszka | c34d440 | 2011-03-02 08:56:16 +0100 | [diff] [blame] | 301 | if (code == BUS_MCEERR_AR) { |
| 302 | status |= MCI_STATUS_AR | 0x134; |
| 303 | mcg_status |= MCG_STATUS_EIPV; |
| 304 | } else { |
| 305 | status |= 0xc0; |
| 306 | mcg_status |= MCG_STATUS_RIPV; |
Marcelo Tosatti | c0532a7 | 2010-10-11 15:31:21 -0300 | [diff] [blame] | 307 | } |
Andreas Färber | 8c5cf3b | 2012-05-03 15:22:54 +0200 | [diff] [blame] | 308 | cpu_x86_inject_mce(NULL, cpu, 9, status, mcg_status, paddr, |
Jan Kiszka | c34d440 | 2011-03-02 08:56:16 +0100 | [diff] [blame] | 309 | (MCM_ADDR_PHYS << 6) | 0xc, |
| 310 | cpu_x86_support_mca_broadcast(env) ? |
| 311 | MCE_INJECT_BROADCAST : 0); |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 312 | } |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 313 | |
| 314 | static void hardware_memory_error(void) |
| 315 | { |
| 316 | fprintf(stderr, "Hardware memory error!\n"); |
| 317 | exit(1); |
| 318 | } |
| 319 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 320 | int kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr) |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 321 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 322 | X86CPU *cpu = X86_CPU(c); |
| 323 | CPUX86State *env = &cpu->env; |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 324 | ram_addr_t ram_addr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 325 | hwaddr paddr; |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 326 | |
| 327 | if ((env->mcg_cap & MCG_SER_P) && addr |
Jan Kiszka | c34d440 | 2011-03-02 08:56:16 +0100 | [diff] [blame] | 328 | && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { |
Paolo Bonzini | 1b5ec23 | 2013-05-06 14:36:15 +0200 | [diff] [blame] | 329 | if (qemu_ram_addr_from_host(addr, &ram_addr) == NULL || |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 330 | !kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) { |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 331 | fprintf(stderr, "Hardware memory error for memory used by " |
| 332 | "QEMU itself instead of guest system!\n"); |
| 333 | /* Hope we are lucky for AO MCE */ |
| 334 | if (code == BUS_MCEERR_AO) { |
| 335 | return 0; |
| 336 | } else { |
| 337 | hardware_memory_error(); |
| 338 | } |
| 339 | } |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 340 | kvm_hwpoison_page_add(ram_addr); |
Andreas Färber | bee615d | 2012-05-03 15:13:58 +0200 | [diff] [blame] | 341 | kvm_mce_inject(cpu, paddr, code); |
Jan Kiszka | e56ff19 | 2011-06-08 16:11:02 +0200 | [diff] [blame] | 342 | } else { |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 343 | if (code == BUS_MCEERR_AO) { |
| 344 | return 0; |
| 345 | } else if (code == BUS_MCEERR_AR) { |
| 346 | hardware_memory_error(); |
| 347 | } else { |
| 348 | return 1; |
| 349 | } |
| 350 | } |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | int kvm_arch_on_sigbus(int code, void *addr) |
| 355 | { |
Andreas Färber | 182735e | 2013-05-29 22:29:20 +0200 | [diff] [blame] | 356 | X86CPU *cpu = X86_CPU(first_cpu); |
| 357 | |
| 358 | if ((cpu->env.mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) { |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 359 | ram_addr_t ram_addr; |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 360 | hwaddr paddr; |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 361 | |
| 362 | /* Hope we are lucky for AO MCE */ |
Paolo Bonzini | 1b5ec23 | 2013-05-06 14:36:15 +0200 | [diff] [blame] | 363 | if (qemu_ram_addr_from_host(addr, &ram_addr) == NULL || |
Andreas Färber | 182735e | 2013-05-29 22:29:20 +0200 | [diff] [blame] | 364 | !kvm_physical_memory_addr_from_host(first_cpu->kvm_state, |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 365 | addr, &paddr)) { |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 366 | fprintf(stderr, "Hardware memory error for memory used by " |
| 367 | "QEMU itself instead of guest system!: %p\n", addr); |
| 368 | return 0; |
| 369 | } |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 370 | kvm_hwpoison_page_add(ram_addr); |
Andreas Färber | 182735e | 2013-05-29 22:29:20 +0200 | [diff] [blame] | 371 | kvm_mce_inject(X86_CPU(first_cpu), paddr, code); |
Jan Kiszka | e56ff19 | 2011-06-08 16:11:02 +0200 | [diff] [blame] | 372 | } else { |
Jan Kiszka | 419fb20 | 2011-03-02 08:56:12 +0100 | [diff] [blame] | 373 | if (code == BUS_MCEERR_AO) { |
| 374 | return 0; |
| 375 | } else if (code == BUS_MCEERR_AR) { |
| 376 | hardware_memory_error(); |
| 377 | } else { |
| 378 | return 1; |
| 379 | } |
| 380 | } |
| 381 | return 0; |
| 382 | } |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 383 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 384 | static int kvm_inject_mce_oldstyle(X86CPU *cpu) |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 385 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 386 | CPUX86State *env = &cpu->env; |
| 387 | |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 388 | if (!kvm_has_vcpu_events() && env->exception_injected == EXCP12_MCHK) { |
| 389 | unsigned int bank, bank_num = env->mcg_cap & 0xff; |
| 390 | struct kvm_x86_mce mce; |
| 391 | |
| 392 | env->exception_injected = -1; |
| 393 | |
| 394 | /* |
| 395 | * There must be at least one bank in use if an MCE is pending. |
| 396 | * Find it and use its values for the event injection. |
| 397 | */ |
| 398 | for (bank = 0; bank < bank_num; bank++) { |
| 399 | if (env->mce_banks[bank * 4 + 1] & MCI_STATUS_VAL) { |
| 400 | break; |
| 401 | } |
| 402 | } |
| 403 | assert(bank < bank_num); |
| 404 | |
| 405 | mce.bank = bank; |
| 406 | mce.status = env->mce_banks[bank * 4 + 1]; |
| 407 | mce.mcg_status = env->mcg_status; |
| 408 | mce.addr = env->mce_banks[bank * 4 + 2]; |
| 409 | mce.misc = env->mce_banks[bank * 4 + 3]; |
| 410 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 411 | return kvm_vcpu_ioctl(CPU(cpu), KVM_X86_SET_MCE, &mce); |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 412 | } |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 413 | return 0; |
| 414 | } |
| 415 | |
Luiz Capitulino | 1dfb4dd | 2011-07-29 14:26:33 -0300 | [diff] [blame] | 416 | static void cpu_update_state(void *opaque, int running, RunState state) |
Glauber Costa | b8cc45d | 2011-02-03 14:19:53 -0500 | [diff] [blame] | 417 | { |
Andreas Färber | 317ac62 | 2012-03-14 01:38:21 +0100 | [diff] [blame] | 418 | CPUX86State *env = opaque; |
Glauber Costa | b8cc45d | 2011-02-03 14:19:53 -0500 | [diff] [blame] | 419 | |
| 420 | if (running) { |
| 421 | env->tsc_valid = false; |
| 422 | } |
| 423 | } |
| 424 | |
Eduardo Habkost | 83b17af | 2013-01-22 18:25:02 -0200 | [diff] [blame] | 425 | unsigned long kvm_arch_vcpu_id(CPUState *cs) |
Eduardo Habkost | b164e48 | 2013-01-22 18:25:01 -0200 | [diff] [blame] | 426 | { |
Eduardo Habkost | 83b17af | 2013-01-22 18:25:02 -0200 | [diff] [blame] | 427 | X86CPU *cpu = X86_CPU(cs); |
| 428 | return cpu->env.cpuid_apic_id; |
Eduardo Habkost | b164e48 | 2013-01-22 18:25:01 -0200 | [diff] [blame] | 429 | } |
| 430 | |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 431 | #ifndef KVM_CPUID_SIGNATURE_NEXT |
| 432 | #define KVM_CPUID_SIGNATURE_NEXT 0x40000100 |
| 433 | #endif |
| 434 | |
| 435 | static bool hyperv_hypercall_available(X86CPU *cpu) |
| 436 | { |
| 437 | return cpu->hyperv_vapic || |
| 438 | (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY); |
| 439 | } |
| 440 | |
| 441 | static bool hyperv_enabled(X86CPU *cpu) |
| 442 | { |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 443 | CPUState *cs = CPU(cpu); |
| 444 | return kvm_check_extension(cs->kvm_state, KVM_CAP_HYPERV) > 0 && |
| 445 | (hyperv_hypercall_available(cpu) || |
Vadim Rozenfeld | 48a5f3b | 2014-01-24 00:40:49 +1100 | [diff] [blame] | 446 | cpu->hyperv_time || |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 447 | cpu->hyperv_relaxed_timing); |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 448 | } |
| 449 | |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 450 | #define KVM_MAX_CPUID_ENTRIES 100 |
Anthony Liguori | 0893d46 | 2013-01-29 16:57:41 -0600 | [diff] [blame] | 451 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 452 | int kvm_arch_init_vcpu(CPUState *cs) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 453 | { |
| 454 | struct { |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 455 | struct kvm_cpuid2 cpuid; |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 456 | struct kvm_cpuid_entry2 entries[KVM_MAX_CPUID_ENTRIES]; |
Stefan Weil | 541dc0d | 2011-08-31 12:38:01 +0200 | [diff] [blame] | 457 | } QEMU_PACKED cpuid_data; |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 458 | X86CPU *cpu = X86_CPU(cs); |
| 459 | CPUX86State *env = &cpu->env; |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 460 | uint32_t limit, i, j, cpuid_i; |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 461 | uint32_t unused; |
Gleb Natapov | bb0300d | 2010-01-13 15:25:06 +0200 | [diff] [blame] | 462 | struct kvm_cpuid_entry2 *c; |
Gleb Natapov | bb0300d | 2010-01-13 15:25:06 +0200 | [diff] [blame] | 463 | uint32_t signature[3]; |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 464 | int kvm_base = KVM_CPUID_SIGNATURE; |
Joerg Roedel | e742907 | 2011-07-07 16:13:13 +0200 | [diff] [blame] | 465 | int r; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 466 | |
Stefan Weil | ef4cbe1 | 2013-11-06 22:35:27 +0100 | [diff] [blame] | 467 | memset(&cpuid_data, 0, sizeof(cpuid_data)); |
| 468 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 469 | cpuid_i = 0; |
| 470 | |
Gleb Natapov | bb0300d | 2010-01-13 15:25:06 +0200 | [diff] [blame] | 471 | /* Paravirtualization CPUIDs */ |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 472 | if (hyperv_enabled(cpu)) { |
| 473 | c = &cpuid_data.entries[cpuid_i++]; |
| 474 | c->function = HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 475 | memcpy(signature, "Microsoft Hv", 12); |
| 476 | c->eax = HYPERV_CPUID_MIN; |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 477 | c->ebx = signature[0]; |
| 478 | c->ecx = signature[1]; |
| 479 | c->edx = signature[2]; |
Gleb Natapov | bb0300d | 2010-01-13 15:25:06 +0200 | [diff] [blame] | 480 | |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 481 | c = &cpuid_data.entries[cpuid_i++]; |
| 482 | c->function = HYPERV_CPUID_INTERFACE; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 483 | memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12); |
| 484 | c->eax = signature[0]; |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 485 | c->ebx = 0; |
| 486 | c->ecx = 0; |
| 487 | c->edx = 0; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 488 | |
| 489 | c = &cpuid_data.entries[cpuid_i++]; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 490 | c->function = HYPERV_CPUID_VERSION; |
| 491 | c->eax = 0x00001bbc; |
| 492 | c->ebx = 0x00060001; |
| 493 | |
| 494 | c = &cpuid_data.entries[cpuid_i++]; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 495 | c->function = HYPERV_CPUID_FEATURES; |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 496 | if (cpu->hyperv_relaxed_timing) { |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 497 | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
| 498 | } |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 499 | if (cpu->hyperv_vapic) { |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 500 | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
| 501 | c->eax |= HV_X64_MSR_APIC_ACCESS_AVAILABLE; |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 502 | has_msr_hv_vapic = true; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 503 | } |
Vadim Rozenfeld | 48a5f3b | 2014-01-24 00:40:49 +1100 | [diff] [blame] | 504 | if (cpu->hyperv_time && |
| 505 | kvm_check_extension(cs->kvm_state, KVM_CAP_HYPERV_TIME) > 0) { |
| 506 | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
| 507 | c->eax |= HV_X64_MSR_TIME_REF_COUNT_AVAILABLE; |
| 508 | c->eax |= 0x200; |
| 509 | has_msr_hv_tsc = true; |
| 510 | } |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 511 | c = &cpuid_data.entries[cpuid_i++]; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 512 | c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 513 | if (cpu->hyperv_relaxed_timing) { |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 514 | c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED; |
| 515 | } |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 516 | if (has_msr_hv_vapic) { |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 517 | c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED; |
| 518 | } |
Igor Mammedov | 92067bf | 2013-06-05 15:18:40 +0200 | [diff] [blame] | 519 | c->ebx = cpu->hyperv_spinlock_attempts; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 520 | |
| 521 | c = &cpuid_data.entries[cpuid_i++]; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 522 | c->function = HYPERV_CPUID_IMPLEMENT_LIMITS; |
| 523 | c->eax = 0x40; |
| 524 | c->ebx = 0x40; |
| 525 | |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 526 | kvm_base = KVM_CPUID_SIGNATURE_NEXT; |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 527 | has_msr_hv_hypercall = true; |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 528 | } |
| 529 | |
Paolo Bonzini | 234cc64 | 2014-01-23 19:27:24 +0100 | [diff] [blame] | 530 | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
| 531 | c = &cpuid_data.entries[cpuid_i++]; |
| 532 | c->function = KVM_CPUID_SIGNATURE | kvm_base; |
| 533 | c->eax = 0; |
| 534 | c->ebx = signature[0]; |
| 535 | c->ecx = signature[1]; |
| 536 | c->edx = signature[2]; |
| 537 | |
| 538 | c = &cpuid_data.entries[cpuid_i++]; |
| 539 | c->function = KVM_CPUID_FEATURES | kvm_base; |
| 540 | c->eax = env->features[FEAT_KVM]; |
| 541 | |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 542 | has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF); |
Glauber Costa | 0c31b74 | 2011-03-17 19:42:05 -0300 | [diff] [blame] | 543 | |
Michael S. Tsirkin | bc9a839 | 2012-08-28 20:43:56 +0300 | [diff] [blame] | 544 | has_msr_pv_eoi_en = c->eax & (1 << KVM_FEATURE_PV_EOI); |
| 545 | |
Marcelo Tosatti | 917367a | 2013-02-19 23:27:20 -0300 | [diff] [blame] | 546 | has_msr_kvm_steal_time = c->eax & (1 << KVM_FEATURE_STEAL_TIME); |
| 547 | |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 548 | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 549 | |
| 550 | for (i = 0; i <= limit; i++) { |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 551 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
| 552 | fprintf(stderr, "unsupported level value: 0x%x\n", limit); |
| 553 | abort(); |
| 554 | } |
Gleb Natapov | bb0300d | 2010-01-13 15:25:06 +0200 | [diff] [blame] | 555 | c = &cpuid_data.entries[cpuid_i++]; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 556 | |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 557 | switch (i) { |
aliguori | a36b102 | 2009-02-09 15:50:36 +0000 | [diff] [blame] | 558 | case 2: { |
| 559 | /* Keep reading function 2 till all the input is received */ |
| 560 | int times; |
| 561 | |
aliguori | a36b102 | 2009-02-09 15:50:36 +0000 | [diff] [blame] | 562 | c->function = i; |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 563 | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
| 564 | KVM_CPUID_FLAG_STATE_READ_NEXT; |
| 565 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); |
| 566 | times = c->eax & 0xff; |
aliguori | a36b102 | 2009-02-09 15:50:36 +0000 | [diff] [blame] | 567 | |
| 568 | for (j = 1; j < times; ++j) { |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 569 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
| 570 | fprintf(stderr, "cpuid_data is full, no space for " |
| 571 | "cpuid(eax:2):eax & 0xf = 0x%x\n", times); |
| 572 | abort(); |
| 573 | } |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 574 | c = &cpuid_data.entries[cpuid_i++]; |
aliguori | a36b102 | 2009-02-09 15:50:36 +0000 | [diff] [blame] | 575 | c->function = i; |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 576 | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
| 577 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); |
aliguori | a36b102 | 2009-02-09 15:50:36 +0000 | [diff] [blame] | 578 | } |
| 579 | break; |
| 580 | } |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 581 | case 4: |
| 582 | case 0xb: |
| 583 | case 0xd: |
| 584 | for (j = 0; ; j++) { |
Andre Przywara | 31e8c69 | 2011-06-10 15:56:28 +0200 | [diff] [blame] | 585 | if (i == 0xd && j == 64) { |
| 586 | break; |
| 587 | } |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 588 | c->function = i; |
| 589 | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; |
| 590 | c->index = j; |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 591 | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 592 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 593 | if (i == 4 && c->eax == 0) { |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 594 | break; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 595 | } |
| 596 | if (i == 0xb && !(c->ecx & 0xff00)) { |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 597 | break; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 598 | } |
| 599 | if (i == 0xd && c->eax == 0) { |
Andre Przywara | 31e8c69 | 2011-06-10 15:56:28 +0200 | [diff] [blame] | 600 | continue; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 601 | } |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 602 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
| 603 | fprintf(stderr, "cpuid_data is full, no space for " |
| 604 | "cpuid(eax:0x%x,ecx:0x%x)\n", i, j); |
| 605 | abort(); |
| 606 | } |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 607 | c = &cpuid_data.entries[cpuid_i++]; |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 608 | } |
| 609 | break; |
| 610 | default: |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 611 | c->function = i; |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 612 | c->flags = 0; |
| 613 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); |
aliguori | 486bd5a | 2009-02-09 15:50:31 +0000 | [diff] [blame] | 614 | break; |
| 615 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 616 | } |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 617 | |
| 618 | if (limit >= 0x0a) { |
| 619 | uint32_t ver; |
| 620 | |
| 621 | cpu_x86_cpuid(env, 0x0a, 0, &ver, &unused, &unused, &unused); |
| 622 | if ((ver & 0xff) > 0) { |
| 623 | has_msr_architectural_pmu = true; |
| 624 | num_architectural_pmu_counters = (ver & 0xff00) >> 8; |
| 625 | |
| 626 | /* Shouldn't be more than 32, since that's the number of bits |
| 627 | * available in EBX to tell us _which_ counters are available. |
| 628 | * Play it safe. |
| 629 | */ |
| 630 | if (num_architectural_pmu_counters > MAX_GP_COUNTERS) { |
| 631 | num_architectural_pmu_counters = MAX_GP_COUNTERS; |
| 632 | } |
| 633 | } |
| 634 | } |
| 635 | |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 636 | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 637 | |
| 638 | for (i = 0x80000000; i <= limit; i++) { |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 639 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
| 640 | fprintf(stderr, "unsupported xlevel value: 0x%x\n", limit); |
| 641 | abort(); |
| 642 | } |
Gleb Natapov | bb0300d | 2010-01-13 15:25:06 +0200 | [diff] [blame] | 643 | c = &cpuid_data.entries[cpuid_i++]; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 644 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 645 | c->function = i; |
aliguori | a33609c | 2009-04-17 20:50:54 +0000 | [diff] [blame] | 646 | c->flags = 0; |
| 647 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 648 | } |
| 649 | |
brillywu@viatech.com.cn | b3baa15 | 2011-06-01 09:59:52 +0800 | [diff] [blame] | 650 | /* Call Centaur's CPUID instructions they are supported. */ |
| 651 | if (env->cpuid_xlevel2 > 0) { |
brillywu@viatech.com.cn | b3baa15 | 2011-06-01 09:59:52 +0800 | [diff] [blame] | 652 | cpu_x86_cpuid(env, 0xC0000000, 0, &limit, &unused, &unused, &unused); |
| 653 | |
| 654 | for (i = 0xC0000000; i <= limit; i++) { |
Igor Mammedov | f8bb056 | 2013-01-28 12:49:26 +0100 | [diff] [blame] | 655 | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) { |
| 656 | fprintf(stderr, "unsupported xlevel2 value: 0x%x\n", limit); |
| 657 | abort(); |
| 658 | } |
brillywu@viatech.com.cn | b3baa15 | 2011-06-01 09:59:52 +0800 | [diff] [blame] | 659 | c = &cpuid_data.entries[cpuid_i++]; |
| 660 | |
| 661 | c->function = i; |
| 662 | c->flags = 0; |
| 663 | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); |
| 664 | } |
| 665 | } |
| 666 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 667 | cpuid_data.cpuid.nent = cpuid_i; |
| 668 | |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 669 | if (((env->cpuid_version >> 8)&0xF) >= 6 |
Eduardo Habkost | 0514ef2 | 2013-04-22 16:00:15 -0300 | [diff] [blame] | 670 | && (env->features[FEAT_1_EDX] & (CPUID_MCE | CPUID_MCA)) == |
Eduardo Habkost | fc7a504 | 2013-04-22 16:00:13 -0300 | [diff] [blame] | 671 | (CPUID_MCE | CPUID_MCA) |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 672 | && kvm_check_extension(cs->kvm_state, KVM_CAP_MCE) > 0) { |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 673 | uint64_t mcg_cap; |
| 674 | int banks; |
Jan Kiszka | 32a4202 | 2011-03-02 08:56:17 +0100 | [diff] [blame] | 675 | int ret; |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 676 | |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 677 | ret = kvm_get_mce_cap_supported(cs->kvm_state, &mcg_cap, &banks); |
Jan Kiszka | 75d4949 | 2011-03-02 08:56:18 +0100 | [diff] [blame] | 678 | if (ret < 0) { |
| 679 | fprintf(stderr, "kvm_get_mce_cap_supported: %s", strerror(-ret)); |
| 680 | return ret; |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 681 | } |
Jan Kiszka | 75d4949 | 2011-03-02 08:56:18 +0100 | [diff] [blame] | 682 | |
| 683 | if (banks > MCE_BANKS_DEF) { |
| 684 | banks = MCE_BANKS_DEF; |
| 685 | } |
| 686 | mcg_cap &= MCE_CAP_DEF; |
| 687 | mcg_cap |= banks; |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 688 | ret = kvm_vcpu_ioctl(cs, KVM_X86_SETUP_MCE, &mcg_cap); |
Jan Kiszka | 75d4949 | 2011-03-02 08:56:18 +0100 | [diff] [blame] | 689 | if (ret < 0) { |
| 690 | fprintf(stderr, "KVM_X86_SETUP_MCE: %s", strerror(-ret)); |
| 691 | return ret; |
| 692 | } |
| 693 | |
| 694 | env->mcg_cap = mcg_cap; |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 695 | } |
Marcelo Tosatti | e770182 | 2010-10-11 15:31:18 -0300 | [diff] [blame] | 696 | |
Glauber Costa | b8cc45d | 2011-02-03 14:19:53 -0500 | [diff] [blame] | 697 | qemu_add_vm_change_state_handler(cpu_update_state, env); |
| 698 | |
Liu Jinsong | df67696 | 2013-08-19 09:33:30 +0800 | [diff] [blame] | 699 | c = cpuid_find_entry(&cpuid_data.cpuid, 1, 0); |
| 700 | if (c) { |
| 701 | has_msr_feature_control = !!(c->ecx & CPUID_EXT_VMX) || |
| 702 | !!(c->ecx & CPUID_EXT_SMX); |
| 703 | } |
| 704 | |
Michael S. Tsirkin | 7e68075 | 2012-02-29 17:54:29 +0200 | [diff] [blame] | 705 | cpuid_data.cpuid.padding = 0; |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 706 | r = kvm_vcpu_ioctl(cs, KVM_SET_CPUID2, &cpuid_data); |
Jan Kiszka | fdc9c41 | 2011-08-15 16:24:48 -0700 | [diff] [blame] | 707 | if (r) { |
| 708 | return r; |
| 709 | } |
Joerg Roedel | e742907 | 2011-07-07 16:13:13 +0200 | [diff] [blame] | 710 | |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 711 | r = kvm_check_extension(cs->kvm_state, KVM_CAP_TSC_CONTROL); |
Joerg Roedel | e742907 | 2011-07-07 16:13:13 +0200 | [diff] [blame] | 712 | if (r && env->tsc_khz) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 713 | r = kvm_vcpu_ioctl(cs, KVM_SET_TSC_KHZ, env->tsc_khz); |
Joerg Roedel | e742907 | 2011-07-07 16:13:13 +0200 | [diff] [blame] | 714 | if (r < 0) { |
| 715 | fprintf(stderr, "KVM_SET_TSC_KHZ failed\n"); |
| 716 | return r; |
| 717 | } |
| 718 | } |
Joerg Roedel | e742907 | 2011-07-07 16:13:13 +0200 | [diff] [blame] | 719 | |
Jan Kiszka | fabacc0 | 2011-10-27 19:25:58 +0200 | [diff] [blame] | 720 | if (kvm_has_xsave()) { |
| 721 | env->kvm_xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
| 722 | } |
| 723 | |
Joerg Roedel | e742907 | 2011-07-07 16:13:13 +0200 | [diff] [blame] | 724 | return 0; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 725 | } |
| 726 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 727 | void kvm_arch_reset_vcpu(CPUState *cs) |
Jan Kiszka | caa5af0 | 2009-11-06 19:39:24 +0100 | [diff] [blame] | 728 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 729 | X86CPU *cpu = X86_CPU(cs); |
| 730 | CPUX86State *env = &cpu->env; |
Igor Mammedov | dd67328 | 2012-07-23 15:22:27 +0200 | [diff] [blame] | 731 | |
Gleb Natapov | e73223a | 2010-01-06 16:30:10 +0200 | [diff] [blame] | 732 | env->exception_injected = -1; |
Jan Kiszka | 0e607a8 | 2009-11-06 19:39:24 +0100 | [diff] [blame] | 733 | env->interrupt_injected = -1; |
Jan Kiszka | 1a5e9d2 | 2011-01-21 21:48:12 +0100 | [diff] [blame] | 734 | env->xcr0 = 1; |
Marcelo Tosatti | ddced19 | 2010-03-23 13:37:14 -0300 | [diff] [blame] | 735 | if (kvm_irqchip_in_kernel()) { |
Igor Mammedov | dd67328 | 2012-07-23 15:22:27 +0200 | [diff] [blame] | 736 | env->mp_state = cpu_is_bsp(cpu) ? KVM_MP_STATE_RUNNABLE : |
Marcelo Tosatti | ddced19 | 2010-03-23 13:37:14 -0300 | [diff] [blame] | 737 | KVM_MP_STATE_UNINITIALIZED; |
| 738 | } else { |
| 739 | env->mp_state = KVM_MP_STATE_RUNNABLE; |
| 740 | } |
Jan Kiszka | caa5af0 | 2009-11-06 19:39:24 +0100 | [diff] [blame] | 741 | } |
| 742 | |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 743 | static int kvm_get_supported_msrs(KVMState *s) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 744 | { |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 745 | static int kvm_supported_msrs; |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 746 | int ret = 0; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 747 | |
| 748 | /* first time */ |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 749 | if (kvm_supported_msrs == 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 750 | struct kvm_msr_list msr_list, *kvm_msr_list; |
| 751 | |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 752 | kvm_supported_msrs = -1; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 753 | |
| 754 | /* Obtain MSR list from KVM. These are the MSRs that we must |
| 755 | * save/restore */ |
aliguori | 4c9f737 | 2008-12-13 20:41:58 +0000 | [diff] [blame] | 756 | msr_list.nmsrs = 0; |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 757 | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, &msr_list); |
Jan Kiszka | 6fb6d24 | 2009-12-06 15:51:24 +0100 | [diff] [blame] | 758 | if (ret < 0 && ret != -E2BIG) { |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 759 | return ret; |
Jan Kiszka | 6fb6d24 | 2009-12-06 15:51:24 +0100 | [diff] [blame] | 760 | } |
Jan Kiszka | d9db889 | 2009-07-02 22:04:48 +0200 | [diff] [blame] | 761 | /* Old kernel modules had a bug and could write beyond the provided |
| 762 | memory. Allocate at least a safe amount of 1K. */ |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 763 | kvm_msr_list = g_malloc0(MAX(1024, sizeof(msr_list) + |
Jan Kiszka | d9db889 | 2009-07-02 22:04:48 +0200 | [diff] [blame] | 764 | msr_list.nmsrs * |
| 765 | sizeof(msr_list.indices[0]))); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 766 | |
aliguori | 5530845 | 2008-12-13 20:49:31 +0000 | [diff] [blame] | 767 | kvm_msr_list->nmsrs = msr_list.nmsrs; |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 768 | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 769 | if (ret >= 0) { |
| 770 | int i; |
| 771 | |
| 772 | for (i = 0; i < kvm_msr_list->nmsrs; i++) { |
| 773 | if (kvm_msr_list->indices[i] == MSR_STAR) { |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 774 | has_msr_star = true; |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 775 | continue; |
| 776 | } |
| 777 | if (kvm_msr_list->indices[i] == MSR_VM_HSAVE_PA) { |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 778 | has_msr_hsave_pa = true; |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 779 | continue; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 780 | } |
Will Auld | f28558d | 2012-11-26 21:32:18 -0800 | [diff] [blame] | 781 | if (kvm_msr_list->indices[i] == MSR_TSC_ADJUST) { |
| 782 | has_msr_tsc_adjust = true; |
| 783 | continue; |
| 784 | } |
Liu, Jinsong | aa82ba5 | 2011-10-05 16:52:32 -0300 | [diff] [blame] | 785 | if (kvm_msr_list->indices[i] == MSR_IA32_TSCDEADLINE) { |
| 786 | has_msr_tsc_deadline = true; |
| 787 | continue; |
| 788 | } |
Avi Kivity | 21e87c4 | 2011-10-04 16:26:35 +0200 | [diff] [blame] | 789 | if (kvm_msr_list->indices[i] == MSR_IA32_MISC_ENABLE) { |
| 790 | has_msr_misc_enable = true; |
| 791 | continue; |
| 792 | } |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 793 | if (kvm_msr_list->indices[i] == MSR_IA32_BNDCFGS) { |
| 794 | has_msr_bndcfgs = true; |
| 795 | continue; |
| 796 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 797 | } |
| 798 | } |
| 799 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 800 | g_free(kvm_msr_list); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 801 | } |
| 802 | |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 803 | return ret; |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 804 | } |
| 805 | |
Jan Kiszka | cad1e28 | 2011-01-21 21:48:16 +0100 | [diff] [blame] | 806 | int kvm_arch_init(KVMState *s) |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 807 | { |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 808 | uint64_t identity_base = 0xfffbc000; |
Jan Kiszka | 39d6960 | 2012-01-25 18:14:15 +0100 | [diff] [blame] | 809 | uint64_t shadow_mem; |
Sheng Yang | 2042043 | 2010-03-23 13:37:12 -0300 | [diff] [blame] | 810 | int ret; |
Marcelo Tosatti | 25d2e36 | 2010-10-21 13:35:04 -0200 | [diff] [blame] | 811 | struct utsname utsname; |
Sheng Yang | 2042043 | 2010-03-23 13:37:12 -0300 | [diff] [blame] | 812 | |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 813 | ret = kvm_get_supported_msrs(s); |
Sheng Yang | 2042043 | 2010-03-23 13:37:12 -0300 | [diff] [blame] | 814 | if (ret < 0) { |
Sheng Yang | 2042043 | 2010-03-23 13:37:12 -0300 | [diff] [blame] | 815 | return ret; |
| 816 | } |
Marcelo Tosatti | 25d2e36 | 2010-10-21 13:35:04 -0200 | [diff] [blame] | 817 | |
| 818 | uname(&utsname); |
| 819 | lm_capable_kernel = strcmp(utsname.machine, "x86_64") == 0; |
| 820 | |
Jes Sorensen | 4c5b10b | 2010-02-15 18:33:46 +0100 | [diff] [blame] | 821 | /* |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 822 | * On older Intel CPUs, KVM uses vm86 mode to emulate 16-bit code directly. |
| 823 | * In order to use vm86 mode, an EPT identity map and a TSS are needed. |
| 824 | * Since these must be part of guest physical memory, we need to allocate |
| 825 | * them, both by setting their start addresses in the kernel and by |
| 826 | * creating a corresponding e820 entry. We need 4 pages before the BIOS. |
| 827 | * |
| 828 | * Older KVM versions may not support setting the identity map base. In |
| 829 | * that case we need to stick with the default, i.e. a 256K maximum BIOS |
| 830 | * size. |
Jes Sorensen | 4c5b10b | 2010-02-15 18:33:46 +0100 | [diff] [blame] | 831 | */ |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 832 | if (kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) { |
| 833 | /* Allows up to 16M BIOSes. */ |
| 834 | identity_base = 0xfeffc000; |
| 835 | |
| 836 | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &identity_base); |
| 837 | if (ret < 0) { |
| 838 | return ret; |
| 839 | } |
Jes Sorensen | 4c5b10b | 2010-02-15 18:33:46 +0100 | [diff] [blame] | 840 | } |
Jan Kiszka | e56ff19 | 2011-06-08 16:11:02 +0200 | [diff] [blame] | 841 | |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 842 | /* Set TSS base one page after EPT identity map. */ |
| 843 | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, identity_base + 0x1000); |
Sheng Yang | 2042043 | 2010-03-23 13:37:12 -0300 | [diff] [blame] | 844 | if (ret < 0) { |
| 845 | return ret; |
| 846 | } |
| 847 | |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 848 | /* Tell fw_cfg to notify the BIOS to reserve the range. */ |
| 849 | ret = e820_add_entry(identity_base, 0x4000, E820_RESERVED); |
| 850 | if (ret < 0) { |
| 851 | fprintf(stderr, "e820_add_entry() table is full\n"); |
| 852 | return ret; |
| 853 | } |
Huang Ying | 3c85e74 | 2011-03-02 08:56:20 +0100 | [diff] [blame] | 854 | qemu_register_reset(kvm_unpoison_all, NULL); |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 855 | |
Markus Armbruster | 36ad0e9 | 2013-07-04 15:09:20 +0200 | [diff] [blame] | 856 | shadow_mem = qemu_opt_get_size(qemu_get_machine_opts(), |
| 857 | "kvm_shadow_mem", -1); |
| 858 | if (shadow_mem != -1) { |
| 859 | shadow_mem /= 4096; |
| 860 | ret = kvm_vm_ioctl(s, KVM_SET_NR_MMU_PAGES, shadow_mem); |
| 861 | if (ret < 0) { |
| 862 | return ret; |
Jan Kiszka | 39d6960 | 2012-01-25 18:14:15 +0100 | [diff] [blame] | 863 | } |
| 864 | } |
Jan Kiszka | 11076198 | 2011-01-21 21:48:18 +0100 | [diff] [blame] | 865 | return 0; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 866 | } |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 867 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 868 | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
| 869 | { |
| 870 | lhs->selector = rhs->selector; |
| 871 | lhs->base = rhs->base; |
| 872 | lhs->limit = rhs->limit; |
| 873 | lhs->type = 3; |
| 874 | lhs->present = 1; |
| 875 | lhs->dpl = 3; |
| 876 | lhs->db = 0; |
| 877 | lhs->s = 1; |
| 878 | lhs->l = 0; |
| 879 | lhs->g = 0; |
| 880 | lhs->avl = 0; |
| 881 | lhs->unusable = 0; |
| 882 | } |
| 883 | |
| 884 | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
| 885 | { |
| 886 | unsigned flags = rhs->flags; |
| 887 | lhs->selector = rhs->selector; |
| 888 | lhs->base = rhs->base; |
| 889 | lhs->limit = rhs->limit; |
| 890 | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15; |
| 891 | lhs->present = (flags & DESC_P_MASK) != 0; |
Jan Kiszka | acaa755 | 2010-12-27 15:56:44 +0100 | [diff] [blame] | 892 | lhs->dpl = (flags >> DESC_DPL_SHIFT) & 3; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 893 | lhs->db = (flags >> DESC_B_SHIFT) & 1; |
| 894 | lhs->s = (flags & DESC_S_MASK) != 0; |
| 895 | lhs->l = (flags >> DESC_L_SHIFT) & 1; |
| 896 | lhs->g = (flags & DESC_G_MASK) != 0; |
| 897 | lhs->avl = (flags & DESC_AVL_MASK) != 0; |
| 898 | lhs->unusable = 0; |
Michael S. Tsirkin | 7e68075 | 2012-02-29 17:54:29 +0200 | [diff] [blame] | 899 | lhs->padding = 0; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 900 | } |
| 901 | |
| 902 | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) |
| 903 | { |
| 904 | lhs->selector = rhs->selector; |
| 905 | lhs->base = rhs->base; |
| 906 | lhs->limit = rhs->limit; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 907 | lhs->flags = (rhs->type << DESC_TYPE_SHIFT) | |
| 908 | (rhs->present * DESC_P_MASK) | |
| 909 | (rhs->dpl << DESC_DPL_SHIFT) | |
| 910 | (rhs->db << DESC_B_SHIFT) | |
| 911 | (rhs->s * DESC_S_MASK) | |
| 912 | (rhs->l << DESC_L_SHIFT) | |
| 913 | (rhs->g * DESC_G_MASK) | |
| 914 | (rhs->avl * DESC_AVL_MASK); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 915 | } |
| 916 | |
| 917 | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) |
| 918 | { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 919 | if (set) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 920 | *kvm_reg = *qemu_reg; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 921 | } else { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 922 | *qemu_reg = *kvm_reg; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 923 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 924 | } |
| 925 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 926 | static int kvm_getput_regs(X86CPU *cpu, int set) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 927 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 928 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 929 | struct kvm_regs regs; |
| 930 | int ret = 0; |
| 931 | |
| 932 | if (!set) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 933 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_REGS, ®s); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 934 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 935 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 936 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 937 | } |
| 938 | |
| 939 | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); |
| 940 | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); |
| 941 | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); |
| 942 | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); |
| 943 | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); |
| 944 | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); |
| 945 | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); |
| 946 | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); |
| 947 | #ifdef TARGET_X86_64 |
| 948 | kvm_getput_reg(®s.r8, &env->regs[8], set); |
| 949 | kvm_getput_reg(®s.r9, &env->regs[9], set); |
| 950 | kvm_getput_reg(®s.r10, &env->regs[10], set); |
| 951 | kvm_getput_reg(®s.r11, &env->regs[11], set); |
| 952 | kvm_getput_reg(®s.r12, &env->regs[12], set); |
| 953 | kvm_getput_reg(®s.r13, &env->regs[13], set); |
| 954 | kvm_getput_reg(®s.r14, &env->regs[14], set); |
| 955 | kvm_getput_reg(®s.r15, &env->regs[15], set); |
| 956 | #endif |
| 957 | |
| 958 | kvm_getput_reg(®s.rflags, &env->eflags, set); |
| 959 | kvm_getput_reg(®s.rip, &env->eip, set); |
| 960 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 961 | if (set) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 962 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_REGS, ®s); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 963 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 964 | |
| 965 | return ret; |
| 966 | } |
| 967 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 968 | static int kvm_put_fpu(X86CPU *cpu) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 969 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 970 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 971 | struct kvm_fpu fpu; |
| 972 | int i; |
| 973 | |
| 974 | memset(&fpu, 0, sizeof fpu); |
| 975 | fpu.fsw = env->fpus & ~(7 << 11); |
| 976 | fpu.fsw |= (env->fpstt & 7) << 11; |
| 977 | fpu.fcw = env->fpuc; |
Jan Kiszka | 42cc8fa | 2011-06-15 15:17:26 +0200 | [diff] [blame] | 978 | fpu.last_opcode = env->fpop; |
| 979 | fpu.last_ip = env->fpip; |
| 980 | fpu.last_dp = env->fpdp; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 981 | for (i = 0; i < 8; ++i) { |
| 982 | fpu.ftwx |= (!env->fptags[i]) << i; |
| 983 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 984 | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs); |
| 985 | memcpy(fpu.xmm, env->xmm_regs, sizeof env->xmm_regs); |
| 986 | fpu.mxcsr = env->mxcsr; |
| 987 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 988 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_FPU, &fpu); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 989 | } |
| 990 | |
Jan Kiszka | 6b42494 | 2011-10-27 19:26:02 +0200 | [diff] [blame] | 991 | #define XSAVE_FCW_FSW 0 |
| 992 | #define XSAVE_FTW_FOP 1 |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 993 | #define XSAVE_CWD_RIP 2 |
| 994 | #define XSAVE_CWD_RDP 4 |
| 995 | #define XSAVE_MXCSR 6 |
| 996 | #define XSAVE_ST_SPACE 8 |
| 997 | #define XSAVE_XMM_SPACE 40 |
| 998 | #define XSAVE_XSTATE_BV 128 |
| 999 | #define XSAVE_YMMH_SPACE 144 |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 1000 | #define XSAVE_BNDREGS 240 |
| 1001 | #define XSAVE_BNDCSR 256 |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1002 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1003 | static int kvm_put_xsave(X86CPU *cpu) |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1004 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1005 | CPUX86State *env = &cpu->env; |
Jan Kiszka | fabacc0 | 2011-10-27 19:25:58 +0200 | [diff] [blame] | 1006 | struct kvm_xsave* xsave = env->kvm_xsave_buf; |
Jan Kiszka | 42cc8fa | 2011-06-15 15:17:26 +0200 | [diff] [blame] | 1007 | uint16_t cwd, swd, twd; |
Jan Kiszka | fabacc0 | 2011-10-27 19:25:58 +0200 | [diff] [blame] | 1008 | int i, r; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1009 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1010 | if (!kvm_has_xsave()) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1011 | return kvm_put_fpu(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1012 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1013 | |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1014 | memset(xsave, 0, sizeof(struct kvm_xsave)); |
Blue Swirl | 6115c0a | 2011-09-04 11:03:52 +0000 | [diff] [blame] | 1015 | twd = 0; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1016 | swd = env->fpus & ~(7 << 11); |
| 1017 | swd |= (env->fpstt & 7) << 11; |
| 1018 | cwd = env->fpuc; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1019 | for (i = 0; i < 8; ++i) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1020 | twd |= (!env->fptags[i]) << i; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1021 | } |
Jan Kiszka | 6b42494 | 2011-10-27 19:26:02 +0200 | [diff] [blame] | 1022 | xsave->region[XSAVE_FCW_FSW] = (uint32_t)(swd << 16) + cwd; |
| 1023 | xsave->region[XSAVE_FTW_FOP] = (uint32_t)(env->fpop << 16) + twd; |
Jan Kiszka | 42cc8fa | 2011-06-15 15:17:26 +0200 | [diff] [blame] | 1024 | memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip)); |
| 1025 | memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp)); |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1026 | memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, |
| 1027 | sizeof env->fpregs); |
| 1028 | memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs, |
| 1029 | sizeof env->xmm_regs); |
| 1030 | xsave->region[XSAVE_MXCSR] = env->mxcsr; |
| 1031 | *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; |
| 1032 | memcpy(&xsave->region[XSAVE_YMMH_SPACE], env->ymmh_regs, |
| 1033 | sizeof env->ymmh_regs); |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 1034 | memcpy(&xsave->region[XSAVE_BNDREGS], env->bnd_regs, |
| 1035 | sizeof env->bnd_regs); |
| 1036 | memcpy(&xsave->region[XSAVE_BNDCSR], &env->bndcs_regs, |
| 1037 | sizeof(env->bndcs_regs)); |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1038 | r = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XSAVE, xsave); |
Marcelo Tosatti | 0f53994 | 2010-10-19 09:00:34 -0200 | [diff] [blame] | 1039 | return r; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1040 | } |
| 1041 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1042 | static int kvm_put_xcrs(X86CPU *cpu) |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1043 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1044 | CPUX86State *env = &cpu->env; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1045 | struct kvm_xcrs xcrs; |
| 1046 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1047 | if (!kvm_has_xcrs()) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1048 | return 0; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1049 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1050 | |
| 1051 | xcrs.nr_xcrs = 1; |
| 1052 | xcrs.flags = 0; |
| 1053 | xcrs.xcrs[0].xcr = 0; |
| 1054 | xcrs.xcrs[0].value = env->xcr0; |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1055 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XCRS, &xcrs); |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1056 | } |
| 1057 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1058 | static int kvm_put_sregs(X86CPU *cpu) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1059 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1060 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1061 | struct kvm_sregs sregs; |
| 1062 | |
Jan Kiszka | 0e607a8 | 2009-11-06 19:39:24 +0100 | [diff] [blame] | 1063 | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
| 1064 | if (env->interrupt_injected >= 0) { |
| 1065 | sregs.interrupt_bitmap[env->interrupt_injected / 64] |= |
| 1066 | (uint64_t)1 << (env->interrupt_injected % 64); |
| 1067 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1068 | |
| 1069 | if ((env->eflags & VM_MASK)) { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1070 | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
| 1071 | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); |
| 1072 | set_v8086_seg(&sregs.es, &env->segs[R_ES]); |
| 1073 | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); |
| 1074 | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); |
| 1075 | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1076 | } else { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1077 | set_seg(&sregs.cs, &env->segs[R_CS]); |
| 1078 | set_seg(&sregs.ds, &env->segs[R_DS]); |
| 1079 | set_seg(&sregs.es, &env->segs[R_ES]); |
| 1080 | set_seg(&sregs.fs, &env->segs[R_FS]); |
| 1081 | set_seg(&sregs.gs, &env->segs[R_GS]); |
| 1082 | set_seg(&sregs.ss, &env->segs[R_SS]); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1083 | } |
| 1084 | |
| 1085 | set_seg(&sregs.tr, &env->tr); |
| 1086 | set_seg(&sregs.ldt, &env->ldt); |
| 1087 | |
| 1088 | sregs.idt.limit = env->idt.limit; |
| 1089 | sregs.idt.base = env->idt.base; |
Michael S. Tsirkin | 7e68075 | 2012-02-29 17:54:29 +0200 | [diff] [blame] | 1090 | memset(sregs.idt.padding, 0, sizeof sregs.idt.padding); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1091 | sregs.gdt.limit = env->gdt.limit; |
| 1092 | sregs.gdt.base = env->gdt.base; |
Michael S. Tsirkin | 7e68075 | 2012-02-29 17:54:29 +0200 | [diff] [blame] | 1093 | memset(sregs.gdt.padding, 0, sizeof sregs.gdt.padding); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1094 | |
| 1095 | sregs.cr0 = env->cr[0]; |
| 1096 | sregs.cr2 = env->cr[2]; |
| 1097 | sregs.cr3 = env->cr[3]; |
| 1098 | sregs.cr4 = env->cr[4]; |
| 1099 | |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 1100 | sregs.cr8 = cpu_get_apic_tpr(cpu->apic_state); |
| 1101 | sregs.apic_base = cpu_get_apic_base(cpu->apic_state); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1102 | |
| 1103 | sregs.efer = env->efer; |
| 1104 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1105 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_SREGS, &sregs); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1106 | } |
| 1107 | |
| 1108 | static void kvm_msr_entry_set(struct kvm_msr_entry *entry, |
| 1109 | uint32_t index, uint64_t value) |
| 1110 | { |
| 1111 | entry->index = index; |
| 1112 | entry->data = value; |
| 1113 | } |
| 1114 | |
Marcelo Tosatti | 7477cd3 | 2013-08-19 14:13:42 -0300 | [diff] [blame] | 1115 | static int kvm_put_tscdeadline_msr(X86CPU *cpu) |
| 1116 | { |
| 1117 | CPUX86State *env = &cpu->env; |
| 1118 | struct { |
| 1119 | struct kvm_msrs info; |
| 1120 | struct kvm_msr_entry entries[1]; |
| 1121 | } msr_data; |
| 1122 | struct kvm_msr_entry *msrs = msr_data.entries; |
| 1123 | |
| 1124 | if (!has_msr_tsc_deadline) { |
| 1125 | return 0; |
| 1126 | } |
| 1127 | |
| 1128 | kvm_msr_entry_set(&msrs[0], MSR_IA32_TSCDEADLINE, env->tsc_deadline); |
| 1129 | |
| 1130 | msr_data.info.nmsrs = 1; |
| 1131 | |
| 1132 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data); |
| 1133 | } |
| 1134 | |
Jan Kiszka | 6bdf863 | 2013-12-17 20:05:13 +0100 | [diff] [blame] | 1135 | /* |
| 1136 | * Provide a separate write service for the feature control MSR in order to |
| 1137 | * kick the VCPU out of VMXON or even guest mode on reset. This has to be done |
| 1138 | * before writing any other state because forcibly leaving nested mode |
| 1139 | * invalidates the VCPU state. |
| 1140 | */ |
| 1141 | static int kvm_put_msr_feature_control(X86CPU *cpu) |
| 1142 | { |
| 1143 | struct { |
| 1144 | struct kvm_msrs info; |
| 1145 | struct kvm_msr_entry entry; |
| 1146 | } msr_data; |
| 1147 | |
| 1148 | kvm_msr_entry_set(&msr_data.entry, MSR_IA32_FEATURE_CONTROL, |
| 1149 | cpu->env.msr_ia32_feature_control); |
| 1150 | msr_data.info.nmsrs = 1; |
| 1151 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data); |
| 1152 | } |
| 1153 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1154 | static int kvm_put_msrs(X86CPU *cpu, int level) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1155 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1156 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1157 | struct { |
| 1158 | struct kvm_msrs info; |
| 1159 | struct kvm_msr_entry entries[100]; |
| 1160 | } msr_data; |
| 1161 | struct kvm_msr_entry *msrs = msr_data.entries; |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 1162 | int n = 0, i; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1163 | |
| 1164 | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
| 1165 | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp); |
| 1166 | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip); |
Jan Kiszka | 0c03266 | 2011-03-15 12:26:23 +0100 | [diff] [blame] | 1167 | kvm_msr_entry_set(&msrs[n++], MSR_PAT, env->pat); |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 1168 | if (has_msr_star) { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1169 | kvm_msr_entry_set(&msrs[n++], MSR_STAR, env->star); |
| 1170 | } |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 1171 | if (has_msr_hsave_pa) { |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 1172 | kvm_msr_entry_set(&msrs[n++], MSR_VM_HSAVE_PA, env->vm_hsave); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1173 | } |
Will Auld | f28558d | 2012-11-26 21:32:18 -0800 | [diff] [blame] | 1174 | if (has_msr_tsc_adjust) { |
| 1175 | kvm_msr_entry_set(&msrs[n++], MSR_TSC_ADJUST, env->tsc_adjust); |
| 1176 | } |
Avi Kivity | 21e87c4 | 2011-10-04 16:26:35 +0200 | [diff] [blame] | 1177 | if (has_msr_misc_enable) { |
| 1178 | kvm_msr_entry_set(&msrs[n++], MSR_IA32_MISC_ENABLE, |
| 1179 | env->msr_ia32_misc_enable); |
| 1180 | } |
Paolo Bonzini | 439d19f | 2014-01-20 14:22:25 +0100 | [diff] [blame] | 1181 | if (has_msr_bndcfgs) { |
| 1182 | kvm_msr_entry_set(&msrs[n++], MSR_IA32_BNDCFGS, env->msr_bndcfgs); |
| 1183 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1184 | #ifdef TARGET_X86_64 |
Marcelo Tosatti | 25d2e36 | 2010-10-21 13:35:04 -0200 | [diff] [blame] | 1185 | if (lm_capable_kernel) { |
| 1186 | kvm_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar); |
| 1187 | kvm_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase); |
| 1188 | kvm_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask); |
| 1189 | kvm_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar); |
| 1190 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1191 | #endif |
Jan Kiszka | ff5c186 | 2011-01-21 21:48:14 +0100 | [diff] [blame] | 1192 | /* |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 1193 | * The following MSRs have side effects on the guest or are too heavy |
| 1194 | * for normal writeback. Limit them to reset or full state updates. |
Jan Kiszka | ff5c186 | 2011-01-21 21:48:14 +0100 | [diff] [blame] | 1195 | */ |
| 1196 | if (level >= KVM_PUT_RESET_STATE) { |
Fernando Luis Vázquez Cao | 0522604 | 2013-12-06 17:33:01 +0900 | [diff] [blame] | 1197 | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc); |
Jan Kiszka | ea64305 | 2010-03-01 19:10:31 +0100 | [diff] [blame] | 1198 | kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, |
| 1199 | env->system_time_msr); |
| 1200 | kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); |
Jan Kiszka | c5999bf | 2011-01-21 21:48:22 +0100 | [diff] [blame] | 1201 | if (has_msr_async_pf_en) { |
| 1202 | kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, |
| 1203 | env->async_pf_en_msr); |
| 1204 | } |
Michael S. Tsirkin | bc9a839 | 2012-08-28 20:43:56 +0300 | [diff] [blame] | 1205 | if (has_msr_pv_eoi_en) { |
| 1206 | kvm_msr_entry_set(&msrs[n++], MSR_KVM_PV_EOI_EN, |
| 1207 | env->pv_eoi_en_msr); |
| 1208 | } |
Marcelo Tosatti | 917367a | 2013-02-19 23:27:20 -0300 | [diff] [blame] | 1209 | if (has_msr_kvm_steal_time) { |
| 1210 | kvm_msr_entry_set(&msrs[n++], MSR_KVM_STEAL_TIME, |
| 1211 | env->steal_time_msr); |
| 1212 | } |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 1213 | if (has_msr_architectural_pmu) { |
| 1214 | /* Stop the counter. */ |
| 1215 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_FIXED_CTR_CTRL, 0); |
| 1216 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_CTRL, 0); |
| 1217 | |
| 1218 | /* Set the counter values. */ |
| 1219 | for (i = 0; i < MAX_FIXED_COUNTERS; i++) { |
| 1220 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_FIXED_CTR0 + i, |
| 1221 | env->msr_fixed_counters[i]); |
| 1222 | } |
| 1223 | for (i = 0; i < num_architectural_pmu_counters; i++) { |
| 1224 | kvm_msr_entry_set(&msrs[n++], MSR_P6_PERFCTR0 + i, |
| 1225 | env->msr_gp_counters[i]); |
| 1226 | kvm_msr_entry_set(&msrs[n++], MSR_P6_EVNTSEL0 + i, |
| 1227 | env->msr_gp_evtsel[i]); |
| 1228 | } |
| 1229 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_STATUS, |
| 1230 | env->msr_global_status); |
| 1231 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_OVF_CTRL, |
| 1232 | env->msr_global_ovf_ctrl); |
| 1233 | |
| 1234 | /* Now start the PMU. */ |
| 1235 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_FIXED_CTR_CTRL, |
| 1236 | env->msr_fixed_ctr_ctrl); |
| 1237 | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_CTRL, |
| 1238 | env->msr_global_ctrl); |
| 1239 | } |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 1240 | if (has_msr_hv_hypercall) { |
Vadim Rozenfeld | 1c90ef2 | 2014-01-24 00:40:47 +1100 | [diff] [blame] | 1241 | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, |
| 1242 | env->msr_hv_guest_os_id); |
| 1243 | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, |
| 1244 | env->msr_hv_hypercall); |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 1245 | } |
Paolo Bonzini | 7bc3d71 | 2014-01-23 19:16:12 +0100 | [diff] [blame] | 1246 | if (has_msr_hv_vapic) { |
Vadim Rozenfeld | 5ef6898 | 2014-01-24 00:40:48 +1100 | [diff] [blame] | 1247 | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, |
| 1248 | env->msr_hv_vapic); |
Vadim Rozenfeld | eab7013 | 2011-12-18 22:48:14 +0200 | [diff] [blame] | 1249 | } |
Vadim Rozenfeld | 48a5f3b | 2014-01-24 00:40:49 +1100 | [diff] [blame] | 1250 | if (has_msr_hv_tsc) { |
| 1251 | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_REFERENCE_TSC, |
| 1252 | env->msr_hv_tsc); |
| 1253 | } |
Jan Kiszka | 6bdf863 | 2013-12-17 20:05:13 +0100 | [diff] [blame] | 1254 | |
| 1255 | /* Note: MSR_IA32_FEATURE_CONTROL is written separately, see |
| 1256 | * kvm_put_msr_feature_control. */ |
Jan Kiszka | ea64305 | 2010-03-01 19:10:31 +0100 | [diff] [blame] | 1257 | } |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1258 | if (env->mcg_cap) { |
Hidetoshi Seto | d8da857 | 2010-10-21 17:23:14 +0900 | [diff] [blame] | 1259 | int i; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1260 | |
Jan Kiszka | c34d440 | 2011-03-02 08:56:16 +0100 | [diff] [blame] | 1261 | kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status); |
| 1262 | kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl); |
| 1263 | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
| 1264 | kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]); |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1265 | } |
| 1266 | } |
Glauber Costa | 1a03675 | 2009-10-22 10:26:56 -0200 | [diff] [blame] | 1267 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1268 | msr_data.info.nmsrs = n; |
| 1269 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1270 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1271 | |
| 1272 | } |
| 1273 | |
| 1274 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1275 | static int kvm_get_fpu(X86CPU *cpu) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1276 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1277 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1278 | struct kvm_fpu fpu; |
| 1279 | int i, ret; |
| 1280 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1281 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_FPU, &fpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1282 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1283 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1284 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1285 | |
| 1286 | env->fpstt = (fpu.fsw >> 11) & 7; |
| 1287 | env->fpus = fpu.fsw; |
| 1288 | env->fpuc = fpu.fcw; |
Jan Kiszka | 42cc8fa | 2011-06-15 15:17:26 +0200 | [diff] [blame] | 1289 | env->fpop = fpu.last_opcode; |
| 1290 | env->fpip = fpu.last_ip; |
| 1291 | env->fpdp = fpu.last_dp; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1292 | for (i = 0; i < 8; ++i) { |
| 1293 | env->fptags[i] = !((fpu.ftwx >> i) & 1); |
| 1294 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1295 | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs); |
| 1296 | memcpy(env->xmm_regs, fpu.xmm, sizeof env->xmm_regs); |
| 1297 | env->mxcsr = fpu.mxcsr; |
| 1298 | |
| 1299 | return 0; |
| 1300 | } |
| 1301 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1302 | static int kvm_get_xsave(X86CPU *cpu) |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1303 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1304 | CPUX86State *env = &cpu->env; |
Jan Kiszka | fabacc0 | 2011-10-27 19:25:58 +0200 | [diff] [blame] | 1305 | struct kvm_xsave* xsave = env->kvm_xsave_buf; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1306 | int ret, i; |
Jan Kiszka | 42cc8fa | 2011-06-15 15:17:26 +0200 | [diff] [blame] | 1307 | uint16_t cwd, swd, twd; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1308 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1309 | if (!kvm_has_xsave()) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1310 | return kvm_get_fpu(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1311 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1312 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1313 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_XSAVE, xsave); |
Marcelo Tosatti | 0f53994 | 2010-10-19 09:00:34 -0200 | [diff] [blame] | 1314 | if (ret < 0) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1315 | return ret; |
Marcelo Tosatti | 0f53994 | 2010-10-19 09:00:34 -0200 | [diff] [blame] | 1316 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1317 | |
Jan Kiszka | 6b42494 | 2011-10-27 19:26:02 +0200 | [diff] [blame] | 1318 | cwd = (uint16_t)xsave->region[XSAVE_FCW_FSW]; |
| 1319 | swd = (uint16_t)(xsave->region[XSAVE_FCW_FSW] >> 16); |
| 1320 | twd = (uint16_t)xsave->region[XSAVE_FTW_FOP]; |
| 1321 | env->fpop = (uint16_t)(xsave->region[XSAVE_FTW_FOP] >> 16); |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1322 | env->fpstt = (swd >> 11) & 7; |
| 1323 | env->fpus = swd; |
| 1324 | env->fpuc = cwd; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1325 | for (i = 0; i < 8; ++i) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1326 | env->fptags[i] = !((twd >> i) & 1); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1327 | } |
Jan Kiszka | 42cc8fa | 2011-06-15 15:17:26 +0200 | [diff] [blame] | 1328 | memcpy(&env->fpip, &xsave->region[XSAVE_CWD_RIP], sizeof(env->fpip)); |
| 1329 | memcpy(&env->fpdp, &xsave->region[XSAVE_CWD_RDP], sizeof(env->fpdp)); |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1330 | env->mxcsr = xsave->region[XSAVE_MXCSR]; |
| 1331 | memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], |
| 1332 | sizeof env->fpregs); |
| 1333 | memcpy(env->xmm_regs, &xsave->region[XSAVE_XMM_SPACE], |
| 1334 | sizeof env->xmm_regs); |
| 1335 | env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; |
| 1336 | memcpy(env->ymmh_regs, &xsave->region[XSAVE_YMMH_SPACE], |
| 1337 | sizeof env->ymmh_regs); |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 1338 | memcpy(env->bnd_regs, &xsave->region[XSAVE_BNDREGS], |
| 1339 | sizeof env->bnd_regs); |
| 1340 | memcpy(&env->bndcs_regs, &xsave->region[XSAVE_BNDCSR], |
| 1341 | sizeof(env->bndcs_regs)); |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1342 | return 0; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1343 | } |
| 1344 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1345 | static int kvm_get_xcrs(X86CPU *cpu) |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1346 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1347 | CPUX86State *env = &cpu->env; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1348 | int i, ret; |
| 1349 | struct kvm_xcrs xcrs; |
| 1350 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1351 | if (!kvm_has_xcrs()) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1352 | return 0; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1353 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1354 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1355 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_XCRS, &xcrs); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1356 | if (ret < 0) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1357 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1358 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1359 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1360 | for (i = 0; i < xcrs.nr_xcrs; i++) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1361 | /* Only support xcr0 now */ |
Paolo Bonzini | 0fd53fe | 2013-10-17 16:47:52 +0200 | [diff] [blame] | 1362 | if (xcrs.xcrs[i].xcr == 0) { |
| 1363 | env->xcr0 = xcrs.xcrs[i].value; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1364 | break; |
| 1365 | } |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1366 | } |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1367 | return 0; |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1368 | } |
| 1369 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1370 | static int kvm_get_sregs(X86CPU *cpu) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1371 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1372 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1373 | struct kvm_sregs sregs; |
| 1374 | uint32_t hflags; |
Jan Kiszka | 0e607a8 | 2009-11-06 19:39:24 +0100 | [diff] [blame] | 1375 | int bit, i, ret; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1376 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1377 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_SREGS, &sregs); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1378 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1379 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1380 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1381 | |
Jan Kiszka | 0e607a8 | 2009-11-06 19:39:24 +0100 | [diff] [blame] | 1382 | /* There can only be one pending IRQ set in the bitmap at a time, so try |
| 1383 | to find it and save its number instead (-1 for none). */ |
| 1384 | env->interrupt_injected = -1; |
| 1385 | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { |
| 1386 | if (sregs.interrupt_bitmap[i]) { |
| 1387 | bit = ctz64(sregs.interrupt_bitmap[i]); |
| 1388 | env->interrupt_injected = i * 64 + bit; |
| 1389 | break; |
| 1390 | } |
| 1391 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1392 | |
| 1393 | get_seg(&env->segs[R_CS], &sregs.cs); |
| 1394 | get_seg(&env->segs[R_DS], &sregs.ds); |
| 1395 | get_seg(&env->segs[R_ES], &sregs.es); |
| 1396 | get_seg(&env->segs[R_FS], &sregs.fs); |
| 1397 | get_seg(&env->segs[R_GS], &sregs.gs); |
| 1398 | get_seg(&env->segs[R_SS], &sregs.ss); |
| 1399 | |
| 1400 | get_seg(&env->tr, &sregs.tr); |
| 1401 | get_seg(&env->ldt, &sregs.ldt); |
| 1402 | |
| 1403 | env->idt.limit = sregs.idt.limit; |
| 1404 | env->idt.base = sregs.idt.base; |
| 1405 | env->gdt.limit = sregs.gdt.limit; |
| 1406 | env->gdt.base = sregs.gdt.base; |
| 1407 | |
| 1408 | env->cr[0] = sregs.cr0; |
| 1409 | env->cr[2] = sregs.cr2; |
| 1410 | env->cr[3] = sregs.cr3; |
| 1411 | env->cr[4] = sregs.cr4; |
| 1412 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1413 | env->efer = sregs.efer; |
Jan Kiszka | cce4751 | 2011-10-26 13:09:45 +0200 | [diff] [blame] | 1414 | |
| 1415 | /* changes to apic base and cr8/tpr are read back via kvm_arch_post_run */ |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1416 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1417 | #define HFLAG_COPY_MASK \ |
| 1418 | ~( HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ |
| 1419 | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ |
| 1420 | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ |
| 1421 | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1422 | |
| 1423 | hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; |
| 1424 | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT); |
| 1425 | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) & |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1426 | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1427 | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
| 1428 | hflags |= (env->cr[4] & CR4_OSFXSR_MASK) << |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1429 | (HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1430 | |
| 1431 | if (env->efer & MSR_EFER_LMA) { |
| 1432 | hflags |= HF_LMA_MASK; |
| 1433 | } |
| 1434 | |
| 1435 | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) { |
| 1436 | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; |
| 1437 | } else { |
| 1438 | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1439 | (DESC_B_SHIFT - HF_CS32_SHIFT); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1440 | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1441 | (DESC_B_SHIFT - HF_SS32_SHIFT); |
| 1442 | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK) || |
| 1443 | !(hflags & HF_CS32_MASK)) { |
| 1444 | hflags |= HF_ADDSEG_MASK; |
| 1445 | } else { |
| 1446 | hflags |= ((env->segs[R_DS].base | env->segs[R_ES].base | |
| 1447 | env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT; |
| 1448 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1449 | } |
| 1450 | env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1451 | |
| 1452 | return 0; |
| 1453 | } |
| 1454 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1455 | static int kvm_get_msrs(X86CPU *cpu) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1456 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1457 | CPUX86State *env = &cpu->env; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1458 | struct { |
| 1459 | struct kvm_msrs info; |
| 1460 | struct kvm_msr_entry entries[100]; |
| 1461 | } msr_data; |
| 1462 | struct kvm_msr_entry *msrs = msr_data.entries; |
| 1463 | int ret, i, n; |
| 1464 | |
| 1465 | n = 0; |
| 1466 | msrs[n++].index = MSR_IA32_SYSENTER_CS; |
| 1467 | msrs[n++].index = MSR_IA32_SYSENTER_ESP; |
| 1468 | msrs[n++].index = MSR_IA32_SYSENTER_EIP; |
Jan Kiszka | 0c03266 | 2011-03-15 12:26:23 +0100 | [diff] [blame] | 1469 | msrs[n++].index = MSR_PAT; |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 1470 | if (has_msr_star) { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1471 | msrs[n++].index = MSR_STAR; |
| 1472 | } |
Jan Kiszka | c3a3a7d | 2011-01-21 21:48:13 +0100 | [diff] [blame] | 1473 | if (has_msr_hsave_pa) { |
Marcelo Tosatti | 75b10c4 | 2010-10-21 13:35:02 -0200 | [diff] [blame] | 1474 | msrs[n++].index = MSR_VM_HSAVE_PA; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1475 | } |
Will Auld | f28558d | 2012-11-26 21:32:18 -0800 | [diff] [blame] | 1476 | if (has_msr_tsc_adjust) { |
| 1477 | msrs[n++].index = MSR_TSC_ADJUST; |
| 1478 | } |
Liu, Jinsong | aa82ba5 | 2011-10-05 16:52:32 -0300 | [diff] [blame] | 1479 | if (has_msr_tsc_deadline) { |
| 1480 | msrs[n++].index = MSR_IA32_TSCDEADLINE; |
| 1481 | } |
Avi Kivity | 21e87c4 | 2011-10-04 16:26:35 +0200 | [diff] [blame] | 1482 | if (has_msr_misc_enable) { |
| 1483 | msrs[n++].index = MSR_IA32_MISC_ENABLE; |
| 1484 | } |
Liu Jinsong | df67696 | 2013-08-19 09:33:30 +0800 | [diff] [blame] | 1485 | if (has_msr_feature_control) { |
| 1486 | msrs[n++].index = MSR_IA32_FEATURE_CONTROL; |
| 1487 | } |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 1488 | if (has_msr_bndcfgs) { |
| 1489 | msrs[n++].index = MSR_IA32_BNDCFGS; |
| 1490 | } |
Glauber Costa | b8cc45d | 2011-02-03 14:19:53 -0500 | [diff] [blame] | 1491 | |
| 1492 | if (!env->tsc_valid) { |
| 1493 | msrs[n++].index = MSR_IA32_TSC; |
Luiz Capitulino | 1354869 | 2011-07-29 15:36:43 -0300 | [diff] [blame] | 1494 | env->tsc_valid = !runstate_is_running(); |
Glauber Costa | b8cc45d | 2011-02-03 14:19:53 -0500 | [diff] [blame] | 1495 | } |
| 1496 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1497 | #ifdef TARGET_X86_64 |
Marcelo Tosatti | 25d2e36 | 2010-10-21 13:35:04 -0200 | [diff] [blame] | 1498 | if (lm_capable_kernel) { |
| 1499 | msrs[n++].index = MSR_CSTAR; |
| 1500 | msrs[n++].index = MSR_KERNELGSBASE; |
| 1501 | msrs[n++].index = MSR_FMASK; |
| 1502 | msrs[n++].index = MSR_LSTAR; |
| 1503 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1504 | #endif |
Glauber Costa | 1a03675 | 2009-10-22 10:26:56 -0200 | [diff] [blame] | 1505 | msrs[n++].index = MSR_KVM_SYSTEM_TIME; |
| 1506 | msrs[n++].index = MSR_KVM_WALL_CLOCK; |
Jan Kiszka | c5999bf | 2011-01-21 21:48:22 +0100 | [diff] [blame] | 1507 | if (has_msr_async_pf_en) { |
| 1508 | msrs[n++].index = MSR_KVM_ASYNC_PF_EN; |
| 1509 | } |
Michael S. Tsirkin | bc9a839 | 2012-08-28 20:43:56 +0300 | [diff] [blame] | 1510 | if (has_msr_pv_eoi_en) { |
| 1511 | msrs[n++].index = MSR_KVM_PV_EOI_EN; |
| 1512 | } |
Marcelo Tosatti | 917367a | 2013-02-19 23:27:20 -0300 | [diff] [blame] | 1513 | if (has_msr_kvm_steal_time) { |
| 1514 | msrs[n++].index = MSR_KVM_STEAL_TIME; |
| 1515 | } |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 1516 | if (has_msr_architectural_pmu) { |
| 1517 | msrs[n++].index = MSR_CORE_PERF_FIXED_CTR_CTRL; |
| 1518 | msrs[n++].index = MSR_CORE_PERF_GLOBAL_CTRL; |
| 1519 | msrs[n++].index = MSR_CORE_PERF_GLOBAL_STATUS; |
| 1520 | msrs[n++].index = MSR_CORE_PERF_GLOBAL_OVF_CTRL; |
| 1521 | for (i = 0; i < MAX_FIXED_COUNTERS; i++) { |
| 1522 | msrs[n++].index = MSR_CORE_PERF_FIXED_CTR0 + i; |
| 1523 | } |
| 1524 | for (i = 0; i < num_architectural_pmu_counters; i++) { |
| 1525 | msrs[n++].index = MSR_P6_PERFCTR0 + i; |
| 1526 | msrs[n++].index = MSR_P6_EVNTSEL0 + i; |
| 1527 | } |
| 1528 | } |
Glauber Costa | 1a03675 | 2009-10-22 10:26:56 -0200 | [diff] [blame] | 1529 | |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1530 | if (env->mcg_cap) { |
| 1531 | msrs[n++].index = MSR_MCG_STATUS; |
| 1532 | msrs[n++].index = MSR_MCG_CTL; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1533 | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1534 | msrs[n++].index = MSR_MC0_CTL + i; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1535 | } |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1536 | } |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1537 | |
Vadim Rozenfeld | 1c90ef2 | 2014-01-24 00:40:47 +1100 | [diff] [blame] | 1538 | if (has_msr_hv_hypercall) { |
| 1539 | msrs[n++].index = HV_X64_MSR_HYPERCALL; |
| 1540 | msrs[n++].index = HV_X64_MSR_GUEST_OS_ID; |
| 1541 | } |
Vadim Rozenfeld | 5ef6898 | 2014-01-24 00:40:48 +1100 | [diff] [blame] | 1542 | if (has_msr_hv_vapic) { |
| 1543 | msrs[n++].index = HV_X64_MSR_APIC_ASSIST_PAGE; |
| 1544 | } |
Vadim Rozenfeld | 48a5f3b | 2014-01-24 00:40:49 +1100 | [diff] [blame] | 1545 | if (has_msr_hv_tsc) { |
| 1546 | msrs[n++].index = HV_X64_MSR_REFERENCE_TSC; |
| 1547 | } |
Vadim Rozenfeld | 5ef6898 | 2014-01-24 00:40:48 +1100 | [diff] [blame] | 1548 | |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1549 | msr_data.info.nmsrs = n; |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1550 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_MSRS, &msr_data); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1551 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1552 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1553 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1554 | |
| 1555 | for (i = 0; i < ret; i++) { |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 1556 | uint32_t index = msrs[i].index; |
| 1557 | switch (index) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1558 | case MSR_IA32_SYSENTER_CS: |
| 1559 | env->sysenter_cs = msrs[i].data; |
| 1560 | break; |
| 1561 | case MSR_IA32_SYSENTER_ESP: |
| 1562 | env->sysenter_esp = msrs[i].data; |
| 1563 | break; |
| 1564 | case MSR_IA32_SYSENTER_EIP: |
| 1565 | env->sysenter_eip = msrs[i].data; |
| 1566 | break; |
Jan Kiszka | 0c03266 | 2011-03-15 12:26:23 +0100 | [diff] [blame] | 1567 | case MSR_PAT: |
| 1568 | env->pat = msrs[i].data; |
| 1569 | break; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1570 | case MSR_STAR: |
| 1571 | env->star = msrs[i].data; |
| 1572 | break; |
| 1573 | #ifdef TARGET_X86_64 |
| 1574 | case MSR_CSTAR: |
| 1575 | env->cstar = msrs[i].data; |
| 1576 | break; |
| 1577 | case MSR_KERNELGSBASE: |
| 1578 | env->kernelgsbase = msrs[i].data; |
| 1579 | break; |
| 1580 | case MSR_FMASK: |
| 1581 | env->fmask = msrs[i].data; |
| 1582 | break; |
| 1583 | case MSR_LSTAR: |
| 1584 | env->lstar = msrs[i].data; |
| 1585 | break; |
| 1586 | #endif |
| 1587 | case MSR_IA32_TSC: |
| 1588 | env->tsc = msrs[i].data; |
| 1589 | break; |
Will Auld | f28558d | 2012-11-26 21:32:18 -0800 | [diff] [blame] | 1590 | case MSR_TSC_ADJUST: |
| 1591 | env->tsc_adjust = msrs[i].data; |
| 1592 | break; |
Liu, Jinsong | aa82ba5 | 2011-10-05 16:52:32 -0300 | [diff] [blame] | 1593 | case MSR_IA32_TSCDEADLINE: |
| 1594 | env->tsc_deadline = msrs[i].data; |
| 1595 | break; |
Marcelo Tosatti | aa851e3 | 2010-10-21 13:35:01 -0200 | [diff] [blame] | 1596 | case MSR_VM_HSAVE_PA: |
| 1597 | env->vm_hsave = msrs[i].data; |
| 1598 | break; |
Glauber Costa | 1a03675 | 2009-10-22 10:26:56 -0200 | [diff] [blame] | 1599 | case MSR_KVM_SYSTEM_TIME: |
| 1600 | env->system_time_msr = msrs[i].data; |
| 1601 | break; |
| 1602 | case MSR_KVM_WALL_CLOCK: |
| 1603 | env->wall_clock_msr = msrs[i].data; |
| 1604 | break; |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1605 | case MSR_MCG_STATUS: |
| 1606 | env->mcg_status = msrs[i].data; |
| 1607 | break; |
| 1608 | case MSR_MCG_CTL: |
| 1609 | env->mcg_ctl = msrs[i].data; |
| 1610 | break; |
Avi Kivity | 21e87c4 | 2011-10-04 16:26:35 +0200 | [diff] [blame] | 1611 | case MSR_IA32_MISC_ENABLE: |
| 1612 | env->msr_ia32_misc_enable = msrs[i].data; |
| 1613 | break; |
Arthur Chunqi Li | 0779cae | 2013-07-07 23:13:37 +0800 | [diff] [blame] | 1614 | case MSR_IA32_FEATURE_CONTROL: |
| 1615 | env->msr_ia32_feature_control = msrs[i].data; |
Liu Jinsong | df67696 | 2013-08-19 09:33:30 +0800 | [diff] [blame] | 1616 | break; |
Liu Jinsong | 79e9ebe | 2013-12-05 08:32:12 +0800 | [diff] [blame] | 1617 | case MSR_IA32_BNDCFGS: |
| 1618 | env->msr_bndcfgs = msrs[i].data; |
| 1619 | break; |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1620 | default: |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1621 | if (msrs[i].index >= MSR_MC0_CTL && |
| 1622 | msrs[i].index < MSR_MC0_CTL + (env->mcg_cap & 0xff) * 4) { |
| 1623 | env->mce_banks[msrs[i].index - MSR_MC0_CTL] = msrs[i].data; |
Marcelo Tosatti | 5778049 | 2010-10-11 15:31:22 -0300 | [diff] [blame] | 1624 | } |
Hidetoshi Seto | d8da857 | 2010-10-21 17:23:14 +0900 | [diff] [blame] | 1625 | break; |
Gleb Natapov | f6584ee | 2010-10-24 14:27:55 +0200 | [diff] [blame] | 1626 | case MSR_KVM_ASYNC_PF_EN: |
| 1627 | env->async_pf_en_msr = msrs[i].data; |
| 1628 | break; |
Michael S. Tsirkin | bc9a839 | 2012-08-28 20:43:56 +0300 | [diff] [blame] | 1629 | case MSR_KVM_PV_EOI_EN: |
| 1630 | env->pv_eoi_en_msr = msrs[i].data; |
| 1631 | break; |
Marcelo Tosatti | 917367a | 2013-02-19 23:27:20 -0300 | [diff] [blame] | 1632 | case MSR_KVM_STEAL_TIME: |
| 1633 | env->steal_time_msr = msrs[i].data; |
| 1634 | break; |
Paolo Bonzini | 0d89436 | 2013-07-25 17:05:22 +0200 | [diff] [blame] | 1635 | case MSR_CORE_PERF_FIXED_CTR_CTRL: |
| 1636 | env->msr_fixed_ctr_ctrl = msrs[i].data; |
| 1637 | break; |
| 1638 | case MSR_CORE_PERF_GLOBAL_CTRL: |
| 1639 | env->msr_global_ctrl = msrs[i].data; |
| 1640 | break; |
| 1641 | case MSR_CORE_PERF_GLOBAL_STATUS: |
| 1642 | env->msr_global_status = msrs[i].data; |
| 1643 | break; |
| 1644 | case MSR_CORE_PERF_GLOBAL_OVF_CTRL: |
| 1645 | env->msr_global_ovf_ctrl = msrs[i].data; |
| 1646 | break; |
| 1647 | case MSR_CORE_PERF_FIXED_CTR0 ... MSR_CORE_PERF_FIXED_CTR0 + MAX_FIXED_COUNTERS - 1: |
| 1648 | env->msr_fixed_counters[index - MSR_CORE_PERF_FIXED_CTR0] = msrs[i].data; |
| 1649 | break; |
| 1650 | case MSR_P6_PERFCTR0 ... MSR_P6_PERFCTR0 + MAX_GP_COUNTERS - 1: |
| 1651 | env->msr_gp_counters[index - MSR_P6_PERFCTR0] = msrs[i].data; |
| 1652 | break; |
| 1653 | case MSR_P6_EVNTSEL0 ... MSR_P6_EVNTSEL0 + MAX_GP_COUNTERS - 1: |
| 1654 | env->msr_gp_evtsel[index - MSR_P6_EVNTSEL0] = msrs[i].data; |
| 1655 | break; |
Vadim Rozenfeld | 1c90ef2 | 2014-01-24 00:40:47 +1100 | [diff] [blame] | 1656 | case HV_X64_MSR_HYPERCALL: |
| 1657 | env->msr_hv_hypercall = msrs[i].data; |
| 1658 | break; |
| 1659 | case HV_X64_MSR_GUEST_OS_ID: |
| 1660 | env->msr_hv_guest_os_id = msrs[i].data; |
| 1661 | break; |
Vadim Rozenfeld | 5ef6898 | 2014-01-24 00:40:48 +1100 | [diff] [blame] | 1662 | case HV_X64_MSR_APIC_ASSIST_PAGE: |
| 1663 | env->msr_hv_vapic = msrs[i].data; |
| 1664 | break; |
Vadim Rozenfeld | 48a5f3b | 2014-01-24 00:40:49 +1100 | [diff] [blame] | 1665 | case HV_X64_MSR_REFERENCE_TSC: |
| 1666 | env->msr_hv_tsc = msrs[i].data; |
| 1667 | break; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1668 | } |
| 1669 | } |
| 1670 | |
| 1671 | return 0; |
| 1672 | } |
| 1673 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1674 | static int kvm_put_mp_state(X86CPU *cpu) |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1675 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1676 | struct kvm_mp_state mp_state = { .mp_state = cpu->env.mp_state }; |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1677 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1678 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MP_STATE, &mp_state); |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1679 | } |
| 1680 | |
Andreas Färber | 23d02d9 | 2012-05-03 16:56:46 +0200 | [diff] [blame] | 1681 | static int kvm_get_mp_state(X86CPU *cpu) |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1682 | { |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 1683 | CPUState *cs = CPU(cpu); |
Andreas Färber | 23d02d9 | 2012-05-03 16:56:46 +0200 | [diff] [blame] | 1684 | CPUX86State *env = &cpu->env; |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1685 | struct kvm_mp_state mp_state; |
| 1686 | int ret; |
| 1687 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 1688 | ret = kvm_vcpu_ioctl(cs, KVM_GET_MP_STATE, &mp_state); |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1689 | if (ret < 0) { |
| 1690 | return ret; |
| 1691 | } |
| 1692 | env->mp_state = mp_state.mp_state; |
Jan Kiszka | c14750e | 2011-01-21 21:48:10 +0100 | [diff] [blame] | 1693 | if (kvm_irqchip_in_kernel()) { |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 1694 | cs->halted = (mp_state.mp_state == KVM_MP_STATE_HALTED); |
Jan Kiszka | c14750e | 2011-01-21 21:48:10 +0100 | [diff] [blame] | 1695 | } |
Hollis Blanchard | 9bdbe55 | 2009-11-09 21:05:37 +0000 | [diff] [blame] | 1696 | return 0; |
| 1697 | } |
| 1698 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1699 | static int kvm_get_apic(X86CPU *cpu) |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1700 | { |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 1701 | DeviceState *apic = cpu->apic_state; |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1702 | struct kvm_lapic_state kapic; |
| 1703 | int ret; |
| 1704 | |
Jan Kiszka | 3d4b264 | 2012-01-31 19:17:52 +0100 | [diff] [blame] | 1705 | if (apic && kvm_irqchip_in_kernel()) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1706 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_LAPIC, &kapic); |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1707 | if (ret < 0) { |
| 1708 | return ret; |
| 1709 | } |
| 1710 | |
| 1711 | kvm_get_apic_state(apic, &kapic); |
| 1712 | } |
| 1713 | return 0; |
| 1714 | } |
| 1715 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1716 | static int kvm_put_apic(X86CPU *cpu) |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1717 | { |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 1718 | DeviceState *apic = cpu->apic_state; |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1719 | struct kvm_lapic_state kapic; |
| 1720 | |
Jan Kiszka | 3d4b264 | 2012-01-31 19:17:52 +0100 | [diff] [blame] | 1721 | if (apic && kvm_irqchip_in_kernel()) { |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1722 | kvm_put_apic_state(apic, &kapic); |
| 1723 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1724 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_LAPIC, &kapic); |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1725 | } |
| 1726 | return 0; |
| 1727 | } |
| 1728 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1729 | static int kvm_put_vcpu_events(X86CPU *cpu, int level) |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1730 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1731 | CPUX86State *env = &cpu->env; |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1732 | struct kvm_vcpu_events events; |
| 1733 | |
| 1734 | if (!kvm_has_vcpu_events()) { |
| 1735 | return 0; |
| 1736 | } |
| 1737 | |
Jan Kiszka | 3182737 | 2009-12-14 12:26:17 +0100 | [diff] [blame] | 1738 | events.exception.injected = (env->exception_injected >= 0); |
| 1739 | events.exception.nr = env->exception_injected; |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1740 | events.exception.has_error_code = env->has_error_code; |
| 1741 | events.exception.error_code = env->error_code; |
Michael S. Tsirkin | 7e68075 | 2012-02-29 17:54:29 +0200 | [diff] [blame] | 1742 | events.exception.pad = 0; |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1743 | |
| 1744 | events.interrupt.injected = (env->interrupt_injected >= 0); |
| 1745 | events.interrupt.nr = env->interrupt_injected; |
| 1746 | events.interrupt.soft = env->soft_interrupt; |
| 1747 | |
| 1748 | events.nmi.injected = env->nmi_injected; |
| 1749 | events.nmi.pending = env->nmi_pending; |
| 1750 | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); |
Michael S. Tsirkin | 7e68075 | 2012-02-29 17:54:29 +0200 | [diff] [blame] | 1751 | events.nmi.pad = 0; |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1752 | |
| 1753 | events.sipi_vector = env->sipi_vector; |
| 1754 | |
Jan Kiszka | ea64305 | 2010-03-01 19:10:31 +0100 | [diff] [blame] | 1755 | events.flags = 0; |
| 1756 | if (level >= KVM_PUT_RESET_STATE) { |
| 1757 | events.flags |= |
| 1758 | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; |
| 1759 | } |
Jan Kiszka | aee028b | 2010-01-28 09:30:51 +0100 | [diff] [blame] | 1760 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1761 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_VCPU_EVENTS, &events); |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1762 | } |
| 1763 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1764 | static int kvm_get_vcpu_events(X86CPU *cpu) |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1765 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1766 | CPUX86State *env = &cpu->env; |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1767 | struct kvm_vcpu_events events; |
| 1768 | int ret; |
| 1769 | |
| 1770 | if (!kvm_has_vcpu_events()) { |
| 1771 | return 0; |
| 1772 | } |
| 1773 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1774 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_VCPU_EVENTS, &events); |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1775 | if (ret < 0) { |
| 1776 | return ret; |
| 1777 | } |
Jan Kiszka | 3182737 | 2009-12-14 12:26:17 +0100 | [diff] [blame] | 1778 | env->exception_injected = |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1779 | events.exception.injected ? events.exception.nr : -1; |
| 1780 | env->has_error_code = events.exception.has_error_code; |
| 1781 | env->error_code = events.exception.error_code; |
| 1782 | |
| 1783 | env->interrupt_injected = |
| 1784 | events.interrupt.injected ? events.interrupt.nr : -1; |
| 1785 | env->soft_interrupt = events.interrupt.soft; |
| 1786 | |
| 1787 | env->nmi_injected = events.nmi.injected; |
| 1788 | env->nmi_pending = events.nmi.pending; |
| 1789 | if (events.nmi.masked) { |
| 1790 | env->hflags2 |= HF2_NMI_MASK; |
| 1791 | } else { |
| 1792 | env->hflags2 &= ~HF2_NMI_MASK; |
| 1793 | } |
| 1794 | |
| 1795 | env->sipi_vector = events.sipi_vector; |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1796 | |
| 1797 | return 0; |
| 1798 | } |
| 1799 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1800 | static int kvm_guest_debug_workarounds(X86CPU *cpu) |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1801 | { |
Andreas Färber | ed2803d | 2013-06-21 20:20:45 +0200 | [diff] [blame] | 1802 | CPUState *cs = CPU(cpu); |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1803 | CPUX86State *env = &cpu->env; |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1804 | int ret = 0; |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1805 | unsigned long reinject_trap = 0; |
| 1806 | |
| 1807 | if (!kvm_has_vcpu_events()) { |
| 1808 | if (env->exception_injected == 1) { |
| 1809 | reinject_trap = KVM_GUESTDBG_INJECT_DB; |
| 1810 | } else if (env->exception_injected == 3) { |
| 1811 | reinject_trap = KVM_GUESTDBG_INJECT_BP; |
| 1812 | } |
| 1813 | env->exception_injected = -1; |
| 1814 | } |
| 1815 | |
| 1816 | /* |
| 1817 | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF |
| 1818 | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this |
| 1819 | * by updating the debug state once again if single-stepping is on. |
| 1820 | * Another reason to call kvm_update_guest_debug here is a pending debug |
| 1821 | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to |
| 1822 | * reinject them via SET_GUEST_DEBUG. |
| 1823 | */ |
| 1824 | if (reinject_trap || |
Andreas Färber | ed2803d | 2013-06-21 20:20:45 +0200 | [diff] [blame] | 1825 | (!kvm_has_robust_singlestep() && cs->singlestep_enabled)) { |
Stefan Weil | 38e478e | 2013-07-25 20:50:21 +0200 | [diff] [blame] | 1826 | ret = kvm_update_guest_debug(cs, reinject_trap); |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1827 | } |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1828 | return ret; |
| 1829 | } |
| 1830 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1831 | static int kvm_put_debugregs(X86CPU *cpu) |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1832 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1833 | CPUX86State *env = &cpu->env; |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1834 | struct kvm_debugregs dbgregs; |
| 1835 | int i; |
| 1836 | |
| 1837 | if (!kvm_has_debugregs()) { |
| 1838 | return 0; |
| 1839 | } |
| 1840 | |
| 1841 | for (i = 0; i < 4; i++) { |
| 1842 | dbgregs.db[i] = env->dr[i]; |
| 1843 | } |
| 1844 | dbgregs.dr6 = env->dr[6]; |
| 1845 | dbgregs.dr7 = env->dr[7]; |
| 1846 | dbgregs.flags = 0; |
| 1847 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1848 | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_DEBUGREGS, &dbgregs); |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1849 | } |
| 1850 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1851 | static int kvm_get_debugregs(X86CPU *cpu) |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1852 | { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1853 | CPUX86State *env = &cpu->env; |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1854 | struct kvm_debugregs dbgregs; |
| 1855 | int i, ret; |
| 1856 | |
| 1857 | if (!kvm_has_debugregs()) { |
| 1858 | return 0; |
| 1859 | } |
| 1860 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1861 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_DEBUGREGS, &dbgregs); |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1862 | if (ret < 0) { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1863 | return ret; |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1864 | } |
| 1865 | for (i = 0; i < 4; i++) { |
| 1866 | env->dr[i] = dbgregs.db[i]; |
| 1867 | } |
| 1868 | env->dr[4] = env->dr[6] = dbgregs.dr6; |
| 1869 | env->dr[5] = env->dr[7] = dbgregs.dr7; |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1870 | |
| 1871 | return 0; |
| 1872 | } |
| 1873 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1874 | int kvm_arch_put_registers(CPUState *cpu, int level) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1875 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1876 | X86CPU *x86_cpu = X86_CPU(cpu); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1877 | int ret; |
| 1878 | |
Andreas Färber | 2fa4534 | 2012-05-02 23:38:39 +0200 | [diff] [blame] | 1879 | assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu)); |
Jan Kiszka | dbaa07c | 2010-05-04 09:45:26 -0300 | [diff] [blame] | 1880 | |
Jan Kiszka | 6bdf863 | 2013-12-17 20:05:13 +0100 | [diff] [blame] | 1881 | if (level >= KVM_PUT_RESET_STATE && has_msr_feature_control) { |
| 1882 | ret = kvm_put_msr_feature_control(x86_cpu); |
| 1883 | if (ret < 0) { |
| 1884 | return ret; |
| 1885 | } |
| 1886 | } |
| 1887 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1888 | ret = kvm_getput_regs(x86_cpu, 1); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1889 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1890 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1891 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1892 | ret = kvm_put_xsave(x86_cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1893 | if (ret < 0) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1894 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1895 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1896 | ret = kvm_put_xcrs(x86_cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1897 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1898 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1899 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1900 | ret = kvm_put_sregs(x86_cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1901 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1902 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1903 | } |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 1904 | /* must be before kvm_put_msrs */ |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1905 | ret = kvm_inject_mce_oldstyle(x86_cpu); |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 1906 | if (ret < 0) { |
| 1907 | return ret; |
| 1908 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1909 | ret = kvm_put_msrs(x86_cpu, level); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1910 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1911 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1912 | } |
Jan Kiszka | ea64305 | 2010-03-01 19:10:31 +0100 | [diff] [blame] | 1913 | if (level >= KVM_PUT_RESET_STATE) { |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1914 | ret = kvm_put_mp_state(x86_cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1915 | if (ret < 0) { |
Jan Kiszka | ea64305 | 2010-03-01 19:10:31 +0100 | [diff] [blame] | 1916 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1917 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1918 | ret = kvm_put_apic(x86_cpu); |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1919 | if (ret < 0) { |
| 1920 | return ret; |
| 1921 | } |
Jan Kiszka | ea64305 | 2010-03-01 19:10:31 +0100 | [diff] [blame] | 1922 | } |
Marcelo Tosatti | 7477cd3 | 2013-08-19 14:13:42 -0300 | [diff] [blame] | 1923 | |
| 1924 | ret = kvm_put_tscdeadline_msr(x86_cpu); |
| 1925 | if (ret < 0) { |
| 1926 | return ret; |
| 1927 | } |
| 1928 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1929 | ret = kvm_put_vcpu_events(x86_cpu, level); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1930 | if (ret < 0) { |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1931 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1932 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1933 | ret = kvm_put_debugregs(x86_cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1934 | if (ret < 0) { |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1935 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1936 | } |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1937 | /* must be last */ |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1938 | ret = kvm_guest_debug_workarounds(x86_cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1939 | if (ret < 0) { |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 1940 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1941 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1942 | return 0; |
| 1943 | } |
| 1944 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1945 | int kvm_arch_get_registers(CPUState *cs) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1946 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1947 | X86CPU *cpu = X86_CPU(cs); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1948 | int ret; |
| 1949 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1950 | assert(cpu_is_stopped(cs) || qemu_cpu_is_self(cs)); |
Jan Kiszka | dbaa07c | 2010-05-04 09:45:26 -0300 | [diff] [blame] | 1951 | |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1952 | ret = kvm_getput_regs(cpu, 0); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1953 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1954 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1955 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1956 | ret = kvm_get_xsave(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1957 | if (ret < 0) { |
Sheng Yang | f1665b2 | 2010-06-17 17:53:07 +0800 | [diff] [blame] | 1958 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1959 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1960 | ret = kvm_get_xcrs(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1961 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1962 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1963 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1964 | ret = kvm_get_sregs(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1965 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1966 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1967 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1968 | ret = kvm_get_msrs(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1969 | if (ret < 0) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1970 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1971 | } |
Andreas Färber | 23d02d9 | 2012-05-03 16:56:46 +0200 | [diff] [blame] | 1972 | ret = kvm_get_mp_state(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1973 | if (ret < 0) { |
Jan Kiszka | 5a2e3c2 | 2009-11-25 00:31:03 +0100 | [diff] [blame] | 1974 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1975 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1976 | ret = kvm_get_apic(cpu); |
Jan Kiszka | 680c1c6 | 2011-10-16 13:23:26 +0200 | [diff] [blame] | 1977 | if (ret < 0) { |
| 1978 | return ret; |
| 1979 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1980 | ret = kvm_get_vcpu_events(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1981 | if (ret < 0) { |
Jan Kiszka | a0fb002 | 2009-11-25 00:33:03 +0100 | [diff] [blame] | 1982 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1983 | } |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 1984 | ret = kvm_get_debugregs(cpu); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1985 | if (ret < 0) { |
Jan Kiszka | ff44f1a | 2010-03-12 15:20:49 +0100 | [diff] [blame] | 1986 | return ret; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 1987 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1988 | return 0; |
| 1989 | } |
| 1990 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1991 | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 1992 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 1993 | X86CPU *x86_cpu = X86_CPU(cpu); |
| 1994 | CPUX86State *env = &x86_cpu->env; |
Jan Kiszka | ce377af | 2011-02-07 12:19:21 +0100 | [diff] [blame] | 1995 | int ret; |
| 1996 | |
Lai Jiangshan | 276ce81 | 2010-12-10 15:42:53 +0800 | [diff] [blame] | 1997 | /* Inject NMI */ |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 1998 | if (cpu->interrupt_request & CPU_INTERRUPT_NMI) { |
| 1999 | cpu->interrupt_request &= ~CPU_INTERRUPT_NMI; |
Lai Jiangshan | 276ce81 | 2010-12-10 15:42:53 +0800 | [diff] [blame] | 2000 | DPRINTF("injected NMI\n"); |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 2001 | ret = kvm_vcpu_ioctl(cpu, KVM_NMI); |
Jan Kiszka | ce377af | 2011-02-07 12:19:21 +0100 | [diff] [blame] | 2002 | if (ret < 0) { |
| 2003 | fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n", |
| 2004 | strerror(-ret)); |
| 2005 | } |
Lai Jiangshan | 276ce81 | 2010-12-10 15:42:53 +0800 | [diff] [blame] | 2006 | } |
| 2007 | |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2008 | if (!kvm_irqchip_in_kernel()) { |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2009 | /* Force the VCPU out of its inner loop to process any INIT requests |
| 2010 | * or pending TPR access reports. */ |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2011 | if (cpu->interrupt_request & |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2012 | (CPU_INTERRUPT_INIT | CPU_INTERRUPT_TPR)) { |
Andreas Färber | fcd7d00 | 2012-12-17 08:02:44 +0100 | [diff] [blame] | 2013 | cpu->exit_request = 1; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2014 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2015 | |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2016 | /* Try to inject an interrupt if the guest can accept it */ |
| 2017 | if (run->ready_for_interrupt_injection && |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2018 | (cpu->interrupt_request & CPU_INTERRUPT_HARD) && |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2019 | (env->eflags & IF_MASK)) { |
| 2020 | int irq; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2021 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2022 | cpu->interrupt_request &= ~CPU_INTERRUPT_HARD; |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2023 | irq = cpu_get_pic_interrupt(env); |
| 2024 | if (irq >= 0) { |
| 2025 | struct kvm_interrupt intr; |
| 2026 | |
| 2027 | intr.irq = irq; |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2028 | DPRINTF("injected interrupt %d\n", irq); |
Andreas Färber | 1bc2265 | 2012-10-31 06:06:49 +0100 | [diff] [blame] | 2029 | ret = kvm_vcpu_ioctl(cpu, KVM_INTERRUPT, &intr); |
Jan Kiszka | ce377af | 2011-02-07 12:19:21 +0100 | [diff] [blame] | 2030 | if (ret < 0) { |
| 2031 | fprintf(stderr, |
| 2032 | "KVM: injection failed, interrupt lost (%s)\n", |
| 2033 | strerror(-ret)); |
| 2034 | } |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2035 | } |
| 2036 | } |
| 2037 | |
| 2038 | /* If we have an interrupt but the guest is not ready to receive an |
| 2039 | * interrupt, request an interrupt window exit. This will |
| 2040 | * cause a return to userspace as soon as the guest is ready to |
| 2041 | * receive interrupts. */ |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2042 | if ((cpu->interrupt_request & CPU_INTERRUPT_HARD)) { |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2043 | run->request_interrupt_window = 1; |
| 2044 | } else { |
| 2045 | run->request_interrupt_window = 0; |
| 2046 | } |
| 2047 | |
| 2048 | DPRINTF("setting tpr\n"); |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 2049 | run->cr8 = cpu_get_apic_tpr(x86_cpu->apic_state); |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2050 | } |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2051 | } |
| 2052 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2053 | void kvm_arch_post_run(CPUState *cpu, struct kvm_run *run) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2054 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2055 | X86CPU *x86_cpu = X86_CPU(cpu); |
| 2056 | CPUX86State *env = &x86_cpu->env; |
| 2057 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2058 | if (run->if_flag) { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2059 | env->eflags |= IF_MASK; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2060 | } else { |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2061 | env->eflags &= ~IF_MASK; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2062 | } |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 2063 | cpu_set_apic_tpr(x86_cpu->apic_state, run->cr8); |
| 2064 | cpu_set_apic_base(x86_cpu->apic_state, run->apic_base); |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2065 | } |
| 2066 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2067 | int kvm_arch_process_async_events(CPUState *cs) |
Marcelo Tosatti | 0af691d | 2010-05-04 09:45:27 -0300 | [diff] [blame] | 2068 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2069 | X86CPU *cpu = X86_CPU(cs); |
| 2070 | CPUX86State *env = &cpu->env; |
Andreas Färber | 232fc23 | 2012-05-05 01:14:41 +0200 | [diff] [blame] | 2071 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2072 | if (cs->interrupt_request & CPU_INTERRUPT_MCE) { |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 2073 | /* We must not raise CPU_INTERRUPT_MCE if it's not supported. */ |
| 2074 | assert(env->mcg_cap); |
| 2075 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2076 | cs->interrupt_request &= ~CPU_INTERRUPT_MCE; |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 2077 | |
Andreas Färber | dd1750d | 2013-05-01 13:45:44 +0200 | [diff] [blame] | 2078 | kvm_cpu_synchronize_state(cs); |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 2079 | |
| 2080 | if (env->exception_injected == EXCP08_DBLE) { |
| 2081 | /* this means triple fault */ |
| 2082 | qemu_system_reset_request(); |
Andreas Färber | fcd7d00 | 2012-12-17 08:02:44 +0100 | [diff] [blame] | 2083 | cs->exit_request = 1; |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 2084 | return 0; |
| 2085 | } |
| 2086 | env->exception_injected = EXCP12_MCHK; |
| 2087 | env->has_error_code = 0; |
| 2088 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2089 | cs->halted = 0; |
Jan Kiszka | ab44347 | 2011-03-02 08:56:14 +0100 | [diff] [blame] | 2090 | if (kvm_irqchip_in_kernel() && env->mp_state == KVM_MP_STATE_HALTED) { |
| 2091 | env->mp_state = KVM_MP_STATE_RUNNABLE; |
| 2092 | } |
| 2093 | } |
| 2094 | |
Jan Kiszka | db1669b | 2011-02-07 12:19:19 +0100 | [diff] [blame] | 2095 | if (kvm_irqchip_in_kernel()) { |
| 2096 | return 0; |
| 2097 | } |
| 2098 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2099 | if (cs->interrupt_request & CPU_INTERRUPT_POLL) { |
| 2100 | cs->interrupt_request &= ~CPU_INTERRUPT_POLL; |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 2101 | apic_poll_irq(cpu->apic_state); |
Jan Kiszka | 5d62c43 | 2012-07-09 16:42:32 +0200 | [diff] [blame] | 2102 | } |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2103 | if (((cs->interrupt_request & CPU_INTERRUPT_HARD) && |
Jan Kiszka | 4601f7b | 2011-03-15 12:26:19 +0100 | [diff] [blame] | 2104 | (env->eflags & IF_MASK)) || |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2105 | (cs->interrupt_request & CPU_INTERRUPT_NMI)) { |
| 2106 | cs->halted = 0; |
Jan Kiszka | 6792a57 | 2011-02-07 12:19:18 +0100 | [diff] [blame] | 2107 | } |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2108 | if (cs->interrupt_request & CPU_INTERRUPT_INIT) { |
Andreas Färber | dd1750d | 2013-05-01 13:45:44 +0200 | [diff] [blame] | 2109 | kvm_cpu_synchronize_state(cs); |
Andreas Färber | 232fc23 | 2012-05-05 01:14:41 +0200 | [diff] [blame] | 2110 | do_cpu_init(cpu); |
Marcelo Tosatti | 0af691d | 2010-05-04 09:45:27 -0300 | [diff] [blame] | 2111 | } |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2112 | if (cs->interrupt_request & CPU_INTERRUPT_SIPI) { |
Andreas Färber | dd1750d | 2013-05-01 13:45:44 +0200 | [diff] [blame] | 2113 | kvm_cpu_synchronize_state(cs); |
Andreas Färber | 232fc23 | 2012-05-05 01:14:41 +0200 | [diff] [blame] | 2114 | do_cpu_sipi(cpu); |
Marcelo Tosatti | 0af691d | 2010-05-04 09:45:27 -0300 | [diff] [blame] | 2115 | } |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2116 | if (cs->interrupt_request & CPU_INTERRUPT_TPR) { |
| 2117 | cs->interrupt_request &= ~CPU_INTERRUPT_TPR; |
Andreas Färber | dd1750d | 2013-05-01 13:45:44 +0200 | [diff] [blame] | 2118 | kvm_cpu_synchronize_state(cs); |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 2119 | apic_handle_tpr_access_report(cpu->apic_state, env->eip, |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2120 | env->tpr_access_type); |
| 2121 | } |
Marcelo Tosatti | 0af691d | 2010-05-04 09:45:27 -0300 | [diff] [blame] | 2122 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2123 | return cs->halted; |
Marcelo Tosatti | 0af691d | 2010-05-04 09:45:27 -0300 | [diff] [blame] | 2124 | } |
| 2125 | |
Andreas Färber | 839b563 | 2012-05-03 17:00:31 +0200 | [diff] [blame] | 2126 | static int kvm_handle_halt(X86CPU *cpu) |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2127 | { |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2128 | CPUState *cs = CPU(cpu); |
Andreas Färber | 839b563 | 2012-05-03 17:00:31 +0200 | [diff] [blame] | 2129 | CPUX86State *env = &cpu->env; |
| 2130 | |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2131 | if (!((cs->interrupt_request & CPU_INTERRUPT_HARD) && |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2132 | (env->eflags & IF_MASK)) && |
Andreas Färber | 259186a | 2013-01-17 18:51:17 +0100 | [diff] [blame] | 2133 | !(cs->interrupt_request & CPU_INTERRUPT_NMI)) { |
| 2134 | cs->halted = 1; |
Jan Kiszka | bb4ea39 | 2011-03-15 12:26:28 +0100 | [diff] [blame] | 2135 | return EXCP_HLT; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2136 | } |
| 2137 | |
Jan Kiszka | bb4ea39 | 2011-03-15 12:26:28 +0100 | [diff] [blame] | 2138 | return 0; |
aliguori | 0533044 | 2008-11-05 16:29:27 +0000 | [diff] [blame] | 2139 | } |
| 2140 | |
Andreas Färber | f7575c96 | 2012-12-01 06:18:14 +0100 | [diff] [blame] | 2141 | static int kvm_handle_tpr_access(X86CPU *cpu) |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2142 | { |
Andreas Färber | f7575c96 | 2012-12-01 06:18:14 +0100 | [diff] [blame] | 2143 | CPUState *cs = CPU(cpu); |
| 2144 | struct kvm_run *run = cs->kvm_run; |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2145 | |
Chen Fan | 02e5148 | 2013-12-23 17:04:02 +0800 | [diff] [blame] | 2146 | apic_handle_tpr_access_report(cpu->apic_state, run->tpr_access.rip, |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2147 | run->tpr_access.is_write ? TPR_ACCESS_WRITE |
| 2148 | : TPR_ACCESS_READ); |
| 2149 | return 1; |
| 2150 | } |
| 2151 | |
Andreas Färber | f17ec44 | 2013-06-29 19:40:58 +0200 | [diff] [blame] | 2152 | int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2153 | { |
Juan Quintela | 3897293 | 2009-09-23 01:19:02 +0200 | [diff] [blame] | 2154 | static const uint8_t int3 = 0xcc; |
aliguori | 64bf3f4 | 2009-03-28 17:51:40 +0000 | [diff] [blame] | 2155 | |
Andreas Färber | f17ec44 | 2013-06-29 19:40:58 +0200 | [diff] [blame] | 2156 | if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
| 2157 | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&int3, 1, 1)) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2158 | return -EINVAL; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2159 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2160 | return 0; |
| 2161 | } |
| 2162 | |
Andreas Färber | f17ec44 | 2013-06-29 19:40:58 +0200 | [diff] [blame] | 2163 | int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2164 | { |
| 2165 | uint8_t int3; |
| 2166 | |
Andreas Färber | f17ec44 | 2013-06-29 19:40:58 +0200 | [diff] [blame] | 2167 | if (cpu_memory_rw_debug(cs, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
| 2168 | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2169 | return -EINVAL; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2170 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2171 | return 0; |
| 2172 | } |
| 2173 | |
| 2174 | static struct { |
| 2175 | target_ulong addr; |
| 2176 | int len; |
| 2177 | int type; |
| 2178 | } hw_breakpoint[4]; |
| 2179 | |
| 2180 | static int nb_hw_breakpoint; |
| 2181 | |
| 2182 | static int find_hw_breakpoint(target_ulong addr, int len, int type) |
| 2183 | { |
| 2184 | int n; |
| 2185 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2186 | for (n = 0; n < nb_hw_breakpoint; n++) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2187 | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type && |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2188 | (hw_breakpoint[n].len == len || len == -1)) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2189 | return n; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2190 | } |
| 2191 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2192 | return -1; |
| 2193 | } |
| 2194 | |
| 2195 | int kvm_arch_insert_hw_breakpoint(target_ulong addr, |
| 2196 | target_ulong len, int type) |
| 2197 | { |
| 2198 | switch (type) { |
| 2199 | case GDB_BREAKPOINT_HW: |
| 2200 | len = 1; |
| 2201 | break; |
| 2202 | case GDB_WATCHPOINT_WRITE: |
| 2203 | case GDB_WATCHPOINT_ACCESS: |
| 2204 | switch (len) { |
| 2205 | case 1: |
| 2206 | break; |
| 2207 | case 2: |
| 2208 | case 4: |
| 2209 | case 8: |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2210 | if (addr & (len - 1)) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2211 | return -EINVAL; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2212 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2213 | break; |
| 2214 | default: |
| 2215 | return -EINVAL; |
| 2216 | } |
| 2217 | break; |
| 2218 | default: |
| 2219 | return -ENOSYS; |
| 2220 | } |
| 2221 | |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2222 | if (nb_hw_breakpoint == 4) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2223 | return -ENOBUFS; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2224 | } |
| 2225 | if (find_hw_breakpoint(addr, len, type) >= 0) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2226 | return -EEXIST; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2227 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2228 | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
| 2229 | hw_breakpoint[nb_hw_breakpoint].len = len; |
| 2230 | hw_breakpoint[nb_hw_breakpoint].type = type; |
| 2231 | nb_hw_breakpoint++; |
| 2232 | |
| 2233 | return 0; |
| 2234 | } |
| 2235 | |
| 2236 | int kvm_arch_remove_hw_breakpoint(target_ulong addr, |
| 2237 | target_ulong len, int type) |
| 2238 | { |
| 2239 | int n; |
| 2240 | |
| 2241 | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2242 | if (n < 0) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2243 | return -ENOENT; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2244 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2245 | nb_hw_breakpoint--; |
| 2246 | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; |
| 2247 | |
| 2248 | return 0; |
| 2249 | } |
| 2250 | |
| 2251 | void kvm_arch_remove_all_hw_breakpoints(void) |
| 2252 | { |
| 2253 | nb_hw_breakpoint = 0; |
| 2254 | } |
| 2255 | |
| 2256 | static CPUWatchpoint hw_watchpoint; |
| 2257 | |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 2258 | static int kvm_handle_debug(X86CPU *cpu, |
Blue Swirl | 4840552 | 2012-09-08 12:43:16 +0000 | [diff] [blame] | 2259 | struct kvm_debug_exit_arch *arch_info) |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2260 | { |
Andreas Färber | ed2803d | 2013-06-21 20:20:45 +0200 | [diff] [blame] | 2261 | CPUState *cs = CPU(cpu); |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 2262 | CPUX86State *env = &cpu->env; |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2263 | int ret = 0; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2264 | int n; |
| 2265 | |
| 2266 | if (arch_info->exception == 1) { |
| 2267 | if (arch_info->dr6 & (1 << 14)) { |
Andreas Färber | ed2803d | 2013-06-21 20:20:45 +0200 | [diff] [blame] | 2268 | if (cs->singlestep_enabled) { |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2269 | ret = EXCP_DEBUG; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2270 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2271 | } else { |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2272 | for (n = 0; n < 4; n++) { |
| 2273 | if (arch_info->dr6 & (1 << n)) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2274 | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
| 2275 | case 0x0: |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2276 | ret = EXCP_DEBUG; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2277 | break; |
| 2278 | case 0x1: |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2279 | ret = EXCP_DEBUG; |
Andreas Färber | ff4700b | 2013-08-26 18:23:18 +0200 | [diff] [blame] | 2280 | cs->watchpoint_hit = &hw_watchpoint; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2281 | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
| 2282 | hw_watchpoint.flags = BP_MEM_WRITE; |
| 2283 | break; |
| 2284 | case 0x3: |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2285 | ret = EXCP_DEBUG; |
Andreas Färber | ff4700b | 2013-08-26 18:23:18 +0200 | [diff] [blame] | 2286 | cs->watchpoint_hit = &hw_watchpoint; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2287 | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
| 2288 | hw_watchpoint.flags = BP_MEM_ACCESS; |
| 2289 | break; |
| 2290 | } |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2291 | } |
| 2292 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2293 | } |
Andreas Färber | ff4700b | 2013-08-26 18:23:18 +0200 | [diff] [blame] | 2294 | } else if (kvm_find_sw_breakpoint(cs, arch_info->pc)) { |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2295 | ret = EXCP_DEBUG; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2296 | } |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2297 | if (ret == 0) { |
Andreas Färber | ff4700b | 2013-08-26 18:23:18 +0200 | [diff] [blame] | 2298 | cpu_synchronize_state(cs); |
Blue Swirl | 4840552 | 2012-09-08 12:43:16 +0000 | [diff] [blame] | 2299 | assert(env->exception_injected == -1); |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 2300 | |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2301 | /* pass to guest */ |
Blue Swirl | 4840552 | 2012-09-08 12:43:16 +0000 | [diff] [blame] | 2302 | env->exception_injected = arch_info->exception; |
| 2303 | env->has_error_code = 0; |
Jan Kiszka | b0b1d69 | 2010-03-01 19:10:29 +0100 | [diff] [blame] | 2304 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2305 | |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2306 | return ret; |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2307 | } |
| 2308 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2309 | void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg) |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2310 | { |
| 2311 | const uint8_t type_code[] = { |
| 2312 | [GDB_BREAKPOINT_HW] = 0x0, |
| 2313 | [GDB_WATCHPOINT_WRITE] = 0x1, |
| 2314 | [GDB_WATCHPOINT_ACCESS] = 0x3 |
| 2315 | }; |
| 2316 | const uint8_t len_code[] = { |
| 2317 | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 |
| 2318 | }; |
| 2319 | int n; |
| 2320 | |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 2321 | if (kvm_sw_breakpoints_active(cpu)) { |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2322 | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2323 | } |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2324 | if (nb_hw_breakpoint > 0) { |
| 2325 | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; |
| 2326 | dbg->arch.debugreg[7] = 0x0600; |
| 2327 | for (n = 0; n < nb_hw_breakpoint; n++) { |
| 2328 | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; |
| 2329 | dbg->arch.debugreg[7] |= (2 << (n * 2)) | |
| 2330 | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | |
Jan Kiszka | 95c077c | 2010-12-27 15:58:23 +0100 | [diff] [blame] | 2331 | ((uint32_t)len_code[hw_breakpoint[n].len] << (18 + n*4)); |
aliguori | e22a25c | 2009-03-12 20:12:48 +0000 | [diff] [blame] | 2332 | } |
| 2333 | } |
| 2334 | } |
Gleb Natapov | 4513d92 | 2010-05-10 11:21:34 +0300 | [diff] [blame] | 2335 | |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2336 | static bool host_supports_vmx(void) |
| 2337 | { |
| 2338 | uint32_t ecx, unused; |
| 2339 | |
| 2340 | host_cpuid(1, 0, &unused, &unused, &ecx, &unused); |
| 2341 | return ecx & CPUID_EXT_VMX; |
| 2342 | } |
| 2343 | |
| 2344 | #define VMX_INVALID_GUEST_STATE 0x80000021 |
| 2345 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2346 | int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2347 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2348 | X86CPU *cpu = X86_CPU(cs); |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2349 | uint64_t code; |
| 2350 | int ret; |
| 2351 | |
| 2352 | switch (run->exit_reason) { |
| 2353 | case KVM_EXIT_HLT: |
| 2354 | DPRINTF("handle_hlt\n"); |
Andreas Färber | 839b563 | 2012-05-03 17:00:31 +0200 | [diff] [blame] | 2355 | ret = kvm_handle_halt(cpu); |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2356 | break; |
| 2357 | case KVM_EXIT_SET_TPR: |
| 2358 | ret = 0; |
| 2359 | break; |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2360 | case KVM_EXIT_TPR_ACCESS: |
Andreas Färber | f7575c96 | 2012-12-01 06:18:14 +0100 | [diff] [blame] | 2361 | ret = kvm_handle_tpr_access(cpu); |
Jan Kiszka | d362e75 | 2012-02-17 18:31:17 +0100 | [diff] [blame] | 2362 | break; |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2363 | case KVM_EXIT_FAIL_ENTRY: |
| 2364 | code = run->fail_entry.hardware_entry_failure_reason; |
| 2365 | fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n", |
| 2366 | code); |
| 2367 | if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) { |
| 2368 | fprintf(stderr, |
Vagrant Cascadian | 1261972 | 2011-11-14 14:06:23 -0800 | [diff] [blame] | 2369 | "\nIf you're running a guest on an Intel machine without " |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2370 | "unrestricted mode\n" |
| 2371 | "support, the failure can be most likely due to the guest " |
| 2372 | "entering an invalid\n" |
| 2373 | "state for Intel VT. For example, the guest maybe running " |
| 2374 | "in big real mode\n" |
| 2375 | "which is not supported on less recent Intel processors." |
| 2376 | "\n\n"); |
| 2377 | } |
| 2378 | ret = -1; |
| 2379 | break; |
| 2380 | case KVM_EXIT_EXCEPTION: |
| 2381 | fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n", |
| 2382 | run->ex.exception, run->ex.error_code); |
| 2383 | ret = -1; |
| 2384 | break; |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2385 | case KVM_EXIT_DEBUG: |
| 2386 | DPRINTF("kvm_exit_debug\n"); |
Andreas Färber | a60f24b | 2012-12-01 05:35:08 +0100 | [diff] [blame] | 2387 | ret = kvm_handle_debug(cpu, &run->debug.arch); |
Jan Kiszka | f257473 | 2011-03-15 12:26:30 +0100 | [diff] [blame] | 2388 | break; |
Jan Kiszka | 2a4dac8 | 2011-03-15 12:26:29 +0100 | [diff] [blame] | 2389 | default: |
| 2390 | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason); |
| 2391 | ret = -1; |
| 2392 | break; |
| 2393 | } |
| 2394 | |
| 2395 | return ret; |
| 2396 | } |
| 2397 | |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2398 | bool kvm_arch_stop_on_emulation_error(CPUState *cs) |
Gleb Natapov | 4513d92 | 2010-05-10 11:21:34 +0300 | [diff] [blame] | 2399 | { |
Andreas Färber | 20d695a | 2012-10-31 06:57:49 +0100 | [diff] [blame] | 2400 | X86CPU *cpu = X86_CPU(cs); |
| 2401 | CPUX86State *env = &cpu->env; |
| 2402 | |
Andreas Färber | dd1750d | 2013-05-01 13:45:44 +0200 | [diff] [blame] | 2403 | kvm_cpu_synchronize_state(cs); |
Jan Kiszka | b9bec74 | 2010-12-27 16:19:29 +0100 | [diff] [blame] | 2404 | return !(env->cr[0] & CR0_PE_MASK) || |
| 2405 | ((env->segs[R_CS].selector & 3) != 3); |
Gleb Natapov | 4513d92 | 2010-05-10 11:21:34 +0300 | [diff] [blame] | 2406 | } |
Jan Kiszka | 84b058d | 2011-10-15 11:49:47 +0200 | [diff] [blame] | 2407 | |
| 2408 | void kvm_arch_init_irq_routing(KVMState *s) |
| 2409 | { |
| 2410 | if (!kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) { |
| 2411 | /* If kernel can't do irq routing, interrupt source |
| 2412 | * override 0->2 cannot be set up as required by HPET. |
| 2413 | * So we have to disable it. |
| 2414 | */ |
| 2415 | no_hpet = 1; |
| 2416 | } |
Peter Maydell | cc7e0dd | 2012-07-26 15:35:14 +0100 | [diff] [blame] | 2417 | /* We know at this point that we're using the in-kernel |
Peter Maydell | 614e41b | 2012-07-26 15:35:15 +0100 | [diff] [blame] | 2418 | * irqchip, so we can use irqfds, and on x86 we know |
Peter Maydell | f3e1bed | 2012-07-26 15:35:16 +0100 | [diff] [blame] | 2419 | * we can use msi via irqfd and GSI routing. |
Peter Maydell | cc7e0dd | 2012-07-26 15:35:14 +0100 | [diff] [blame] | 2420 | */ |
| 2421 | kvm_irqfds_allowed = true; |
Peter Maydell | 614e41b | 2012-07-26 15:35:15 +0100 | [diff] [blame] | 2422 | kvm_msi_via_irqfd_allowed = true; |
Peter Maydell | f3e1bed | 2012-07-26 15:35:16 +0100 | [diff] [blame] | 2423 | kvm_gsi_routing_allowed = true; |
Jan Kiszka | 84b058d | 2011-10-15 11:49:47 +0200 | [diff] [blame] | 2424 | } |
Jan Kiszka | b139bd3 | 2012-08-27 08:28:40 +0200 | [diff] [blame] | 2425 | |
| 2426 | /* Classic KVM device assignment interface. Will remain x86 only. */ |
| 2427 | int kvm_device_pci_assign(KVMState *s, PCIHostDeviceAddress *dev_addr, |
| 2428 | uint32_t flags, uint32_t *dev_id) |
| 2429 | { |
| 2430 | struct kvm_assigned_pci_dev dev_data = { |
| 2431 | .segnr = dev_addr->domain, |
| 2432 | .busnr = dev_addr->bus, |
| 2433 | .devfn = PCI_DEVFN(dev_addr->slot, dev_addr->function), |
| 2434 | .flags = flags, |
| 2435 | }; |
| 2436 | int ret; |
| 2437 | |
| 2438 | dev_data.assigned_dev_id = |
| 2439 | (dev_addr->domain << 16) | (dev_addr->bus << 8) | dev_data.devfn; |
| 2440 | |
| 2441 | ret = kvm_vm_ioctl(s, KVM_ASSIGN_PCI_DEVICE, &dev_data); |
| 2442 | if (ret < 0) { |
| 2443 | return ret; |
| 2444 | } |
| 2445 | |
| 2446 | *dev_id = dev_data.assigned_dev_id; |
| 2447 | |
| 2448 | return 0; |
| 2449 | } |
| 2450 | |
| 2451 | int kvm_device_pci_deassign(KVMState *s, uint32_t dev_id) |
| 2452 | { |
| 2453 | struct kvm_assigned_pci_dev dev_data = { |
| 2454 | .assigned_dev_id = dev_id, |
| 2455 | }; |
| 2456 | |
| 2457 | return kvm_vm_ioctl(s, KVM_DEASSIGN_PCI_DEVICE, &dev_data); |
| 2458 | } |
| 2459 | |
| 2460 | static int kvm_assign_irq_internal(KVMState *s, uint32_t dev_id, |
| 2461 | uint32_t irq_type, uint32_t guest_irq) |
| 2462 | { |
| 2463 | struct kvm_assigned_irq assigned_irq = { |
| 2464 | .assigned_dev_id = dev_id, |
| 2465 | .guest_irq = guest_irq, |
| 2466 | .flags = irq_type, |
| 2467 | }; |
| 2468 | |
| 2469 | if (kvm_check_extension(s, KVM_CAP_ASSIGN_DEV_IRQ)) { |
| 2470 | return kvm_vm_ioctl(s, KVM_ASSIGN_DEV_IRQ, &assigned_irq); |
| 2471 | } else { |
| 2472 | return kvm_vm_ioctl(s, KVM_ASSIGN_IRQ, &assigned_irq); |
| 2473 | } |
| 2474 | } |
| 2475 | |
| 2476 | int kvm_device_intx_assign(KVMState *s, uint32_t dev_id, bool use_host_msi, |
| 2477 | uint32_t guest_irq) |
| 2478 | { |
| 2479 | uint32_t irq_type = KVM_DEV_IRQ_GUEST_INTX | |
| 2480 | (use_host_msi ? KVM_DEV_IRQ_HOST_MSI : KVM_DEV_IRQ_HOST_INTX); |
| 2481 | |
| 2482 | return kvm_assign_irq_internal(s, dev_id, irq_type, guest_irq); |
| 2483 | } |
| 2484 | |
| 2485 | int kvm_device_intx_set_mask(KVMState *s, uint32_t dev_id, bool masked) |
| 2486 | { |
| 2487 | struct kvm_assigned_pci_dev dev_data = { |
| 2488 | .assigned_dev_id = dev_id, |
| 2489 | .flags = masked ? KVM_DEV_ASSIGN_MASK_INTX : 0, |
| 2490 | }; |
| 2491 | |
| 2492 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_INTX_MASK, &dev_data); |
| 2493 | } |
| 2494 | |
| 2495 | static int kvm_deassign_irq_internal(KVMState *s, uint32_t dev_id, |
| 2496 | uint32_t type) |
| 2497 | { |
| 2498 | struct kvm_assigned_irq assigned_irq = { |
| 2499 | .assigned_dev_id = dev_id, |
| 2500 | .flags = type, |
| 2501 | }; |
| 2502 | |
| 2503 | return kvm_vm_ioctl(s, KVM_DEASSIGN_DEV_IRQ, &assigned_irq); |
| 2504 | } |
| 2505 | |
| 2506 | int kvm_device_intx_deassign(KVMState *s, uint32_t dev_id, bool use_host_msi) |
| 2507 | { |
| 2508 | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_INTX | |
| 2509 | (use_host_msi ? KVM_DEV_IRQ_HOST_MSI : KVM_DEV_IRQ_HOST_INTX)); |
| 2510 | } |
| 2511 | |
| 2512 | int kvm_device_msi_assign(KVMState *s, uint32_t dev_id, int virq) |
| 2513 | { |
| 2514 | return kvm_assign_irq_internal(s, dev_id, KVM_DEV_IRQ_HOST_MSI | |
| 2515 | KVM_DEV_IRQ_GUEST_MSI, virq); |
| 2516 | } |
| 2517 | |
| 2518 | int kvm_device_msi_deassign(KVMState *s, uint32_t dev_id) |
| 2519 | { |
| 2520 | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSI | |
| 2521 | KVM_DEV_IRQ_HOST_MSI); |
| 2522 | } |
| 2523 | |
| 2524 | bool kvm_device_msix_supported(KVMState *s) |
| 2525 | { |
| 2526 | /* The kernel lacks a corresponding KVM_CAP, so we probe by calling |
| 2527 | * KVM_ASSIGN_SET_MSIX_NR with an invalid parameter. */ |
| 2528 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_NR, NULL) == -EFAULT; |
| 2529 | } |
| 2530 | |
| 2531 | int kvm_device_msix_init_vectors(KVMState *s, uint32_t dev_id, |
| 2532 | uint32_t nr_vectors) |
| 2533 | { |
| 2534 | struct kvm_assigned_msix_nr msix_nr = { |
| 2535 | .assigned_dev_id = dev_id, |
| 2536 | .entry_nr = nr_vectors, |
| 2537 | }; |
| 2538 | |
| 2539 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_NR, &msix_nr); |
| 2540 | } |
| 2541 | |
| 2542 | int kvm_device_msix_set_vector(KVMState *s, uint32_t dev_id, uint32_t vector, |
| 2543 | int virq) |
| 2544 | { |
| 2545 | struct kvm_assigned_msix_entry msix_entry = { |
| 2546 | .assigned_dev_id = dev_id, |
| 2547 | .gsi = virq, |
| 2548 | .entry = vector, |
| 2549 | }; |
| 2550 | |
| 2551 | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_ENTRY, &msix_entry); |
| 2552 | } |
| 2553 | |
| 2554 | int kvm_device_msix_assign(KVMState *s, uint32_t dev_id) |
| 2555 | { |
| 2556 | return kvm_assign_irq_internal(s, dev_id, KVM_DEV_IRQ_HOST_MSIX | |
| 2557 | KVM_DEV_IRQ_GUEST_MSIX, 0); |
| 2558 | } |
| 2559 | |
| 2560 | int kvm_device_msix_deassign(KVMState *s, uint32_t dev_id) |
| 2561 | { |
| 2562 | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSIX | |
| 2563 | KVM_DEV_IRQ_HOST_MSIX); |
| 2564 | } |