diff options
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/kvm.c | 65 |
1 files changed, 63 insertions, 2 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 04e65c5ea1..1f56492cd2 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -29,6 +29,7 @@ #include "hw/pc.h" #include "hw/apic.h" #include "ioport.h" +#include "hyperv.h" //#define DEBUG_KVM @@ -373,11 +374,16 @@ int kvm_arch_init_vcpu(CPUState *env) cpuid_i = 0; /* Paravirtualization CPUIDs */ - memcpy(signature, "KVMKVMKVM\0\0\0", 12); c = &cpuid_data.entries[cpuid_i++]; memset(c, 0, sizeof(*c)); c->function = KVM_CPUID_SIGNATURE; - c->eax = 0; + if (!hyperv_enabled()) { + memcpy(signature, "KVMKVMKVM\0\0\0", 12); + c->eax = 0; + } else { + memcpy(signature, "Microsoft Hv", 12); + c->eax = HYPERV_CPUID_MIN; + } c->ebx = signature[0]; c->ecx = signature[1]; c->edx = signature[2]; @@ -388,6 +394,54 @@ int kvm_arch_init_vcpu(CPUState *env) c->eax = env->cpuid_kvm_features & kvm_arch_get_supported_cpuid(s, KVM_CPUID_FEATURES, 0, R_EAX); + if (hyperv_enabled()) { + memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12); + c->eax = signature[0]; + + c = &cpuid_data.entries[cpuid_i++]; + memset(c, 0, sizeof(*c)); + c->function = HYPERV_CPUID_VERSION; + c->eax = 0x00001bbc; + c->ebx = 0x00060001; + + c = &cpuid_data.entries[cpuid_i++]; + memset(c, 0, sizeof(*c)); + c->function = HYPERV_CPUID_FEATURES; + if (hyperv_relaxed_timing_enabled()) { + c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; + } + if (hyperv_vapic_recommended()) { + c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; + c->eax |= HV_X64_MSR_APIC_ACCESS_AVAILABLE; + } + + c = &cpuid_data.entries[cpuid_i++]; + memset(c, 0, sizeof(*c)); + c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; + if (hyperv_relaxed_timing_enabled()) { + c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED; + } + if (hyperv_vapic_recommended()) { + c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED; + } + c->ebx = hyperv_get_spinlock_retries(); + + c = &cpuid_data.entries[cpuid_i++]; + memset(c, 0, sizeof(*c)); + c->function = HYPERV_CPUID_IMPLEMENT_LIMITS; + c->eax = 0x40; + c->ebx = 0x40; + + c = &cpuid_data.entries[cpuid_i++]; + memset(c, 0, sizeof(*c)); + c->function = KVM_CPUID_SIGNATURE_NEXT; + memcpy(signature, "KVMKVMKVM\0\0\0", 12); + c->eax = 0; + c->ebx = signature[0]; + c->ecx = signature[1]; + c->edx = signature[2]; + } + has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF); cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); @@ -933,6 +987,13 @@ static int kvm_put_msrs(CPUState *env, int level) kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, env->async_pf_en_msr); } + if (hyperv_hypercall_available()) { + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0); + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0); + } + if (hyperv_vapic_recommended()) { + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, 0); + } } if (env->mcg_cap) { int i; |