diff options
| -rw-r--r-- | target-i386/cpu-qom.h | 1 | ||||
| -rw-r--r-- | target-i386/cpu.c | 1 | ||||
| -rw-r--r-- | target-i386/cpu.h | 2 | ||||
| -rw-r--r-- | target-i386/kvm.c | 50 | ||||
| -rw-r--r-- | target-i386/machine.c | 29 |
5 files changed, 82 insertions, 1 deletions
diff --git a/target-i386/cpu-qom.h b/target-i386/cpu-qom.h index 7ea5b34166..5f9d960b25 100644 --- a/target-i386/cpu-qom.h +++ b/target-i386/cpu-qom.h @@ -95,6 +95,7 @@ typedef struct X86CPU { bool hyperv_vpindex; bool hyperv_runtime; bool hyperv_synic; + bool hyperv_stimer; bool check_cpuid; bool enforce_cpuid; bool expose_kvm; diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 2fdd855158..92f7cc1f7d 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -3147,6 +3147,7 @@ static Property x86_cpu_properties[] = { DEFINE_PROP_BOOL("hv-vpindex", X86CPU, hyperv_vpindex, false), DEFINE_PROP_BOOL("hv-runtime", X86CPU, hyperv_runtime, false), DEFINE_PROP_BOOL("hv-synic", X86CPU, hyperv_synic, false), + DEFINE_PROP_BOOL("hv-stimer", X86CPU, hyperv_stimer, false), DEFINE_PROP_BOOL("check", X86CPU, check_cpuid, true), DEFINE_PROP_BOOL("enforce", X86CPU, enforce_cpuid, false), DEFINE_PROP_BOOL("kvm", X86CPU, expose_kvm, true), diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 1168ddf26b..595891e78d 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -925,6 +925,8 @@ typedef struct CPUX86State { uint64_t msr_hv_synic_evt_page; uint64_t msr_hv_synic_msg_page; uint64_t msr_hv_synic_sint[HV_SYNIC_SINT_COUNT]; + uint64_t msr_hv_stimer_config[HV_SYNIC_STIMER_COUNT]; + uint64_t msr_hv_stimer_count[HV_SYNIC_STIMER_COUNT]; /* exception/interrupt handling */ int error_code; diff --git a/target-i386/kvm.c b/target-i386/kvm.c index d1c2c819da..7692b5984d 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -90,6 +90,7 @@ static bool has_msr_hv_reset; static bool has_msr_hv_vpindex; static bool has_msr_hv_runtime; static bool has_msr_hv_synic; +static bool has_msr_hv_stimer; static bool has_msr_mtrr; static bool has_msr_xss; @@ -526,7 +527,8 @@ static bool hyperv_enabled(X86CPU *cpu) cpu->hyperv_reset || cpu->hyperv_vpindex || cpu->hyperv_runtime || - cpu->hyperv_synic); + cpu->hyperv_synic || + cpu->hyperv_stimer); } static Error *invtsc_mig_blocker; @@ -630,6 +632,13 @@ int kvm_arch_init_vcpu(CPUState *cs) env->msr_hv_synic_sint[sint] = HV_SYNIC_SINT_MASKED; } } + if (cpu->hyperv_stimer) { + if (!has_msr_hv_stimer) { + fprintf(stderr, "Hyper-V timers aren't supported by kernel\n"); + return -ENOSYS; + } + c->eax |= HV_X64_MSR_SYNTIMER_AVAILABLE; + } c = &cpuid_data.entries[cpuid_i++]; c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; if (cpu->hyperv_relaxed_timing) { @@ -980,6 +989,10 @@ static int kvm_get_supported_msrs(KVMState *s) has_msr_hv_synic = true; continue; } + if (kvm_msr_list->indices[i] == HV_X64_MSR_STIMER0_CONFIG) { + has_msr_hv_stimer = true; + continue; + } } } @@ -1558,6 +1571,19 @@ static int kvm_put_msrs(X86CPU *cpu, int level) env->msr_hv_synic_sint[j]); } } + if (has_msr_hv_stimer) { + int j; + + for (j = 0; j < ARRAY_SIZE(env->msr_hv_stimer_config); j++) { + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_STIMER0_CONFIG + j*2, + env->msr_hv_stimer_config[j]); + } + + for (j = 0; j < ARRAY_SIZE(env->msr_hv_stimer_count); j++) { + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_STIMER0_COUNT + j*2, + env->msr_hv_stimer_count[j]); + } + } if (has_msr_mtrr) { kvm_msr_entry_set(&msrs[n++], MSR_MTRRdefType, env->mtrr_deftype); kvm_msr_entry_set(&msrs[n++], @@ -1937,6 +1963,14 @@ static int kvm_get_msrs(X86CPU *cpu) msrs[n++].index = msr; } } + if (has_msr_hv_stimer) { + uint32_t msr; + + for (msr = HV_X64_MSR_STIMER0_CONFIG; msr <= HV_X64_MSR_STIMER3_COUNT; + msr++) { + msrs[n++].index = msr; + } + } if (has_msr_mtrr) { msrs[n++].index = MSR_MTRRdefType; msrs[n++].index = MSR_MTRRfix64K_00000; @@ -2108,6 +2142,20 @@ static int kvm_get_msrs(X86CPU *cpu) case HV_X64_MSR_SINT0 ... HV_X64_MSR_SINT15: env->msr_hv_synic_sint[index - HV_X64_MSR_SINT0] = msrs[i].data; break; + case HV_X64_MSR_STIMER0_CONFIG: + case HV_X64_MSR_STIMER1_CONFIG: + case HV_X64_MSR_STIMER2_CONFIG: + case HV_X64_MSR_STIMER3_CONFIG: + env->msr_hv_stimer_config[(index - HV_X64_MSR_STIMER0_CONFIG)/2] = + msrs[i].data; + break; + case HV_X64_MSR_STIMER0_COUNT: + case HV_X64_MSR_STIMER1_COUNT: + case HV_X64_MSR_STIMER2_COUNT: + case HV_X64_MSR_STIMER3_COUNT: + env->msr_hv_stimer_count[(index - HV_X64_MSR_STIMER0_COUNT)/2] = + msrs[i].data; + break; case MSR_MTRRdefType: env->mtrr_deftype = msrs[i].data; break; diff --git a/target-i386/machine.c b/target-i386/machine.c index d41e286ba4..6126d96d7f 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -746,6 +746,34 @@ static const VMStateDescription vmstate_msr_hyperv_synic = { } }; +static bool hyperv_stimer_enable_needed(void *opaque) +{ + X86CPU *cpu = opaque; + CPUX86State *env = &cpu->env; + int i; + + for (i = 0; i < ARRAY_SIZE(env->msr_hv_stimer_config); i++) { + if (env->msr_hv_stimer_config[i] || env->msr_hv_stimer_count[i]) { + return true; + } + } + return false; +} + +static const VMStateDescription vmstate_msr_hyperv_stimer = { + .name = "cpu/msr_hyperv_stimer", + .version_id = 1, + .minimum_version_id = 1, + .needed = hyperv_stimer_enable_needed, + .fields = (VMStateField[]) { + VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_config, + X86CPU, HV_SYNIC_STIMER_COUNT), + VMSTATE_UINT64_ARRAY(env.msr_hv_stimer_count, + X86CPU, HV_SYNIC_STIMER_COUNT), + VMSTATE_END_OF_LIST() + } +}; + static bool avx512_needed(void *opaque) { X86CPU *cpu = opaque; @@ -930,6 +958,7 @@ VMStateDescription vmstate_x86_cpu = { &vmstate_msr_hyperv_crash, &vmstate_msr_hyperv_runtime, &vmstate_msr_hyperv_synic, + &vmstate_msr_hyperv_stimer, &vmstate_avx512, &vmstate_xss, NULL |