diff options
| -rw-r--r-- | target/i386/cpu.c | 1 | ||||
| -rw-r--r-- | target/i386/cpu.h | 5 | ||||
| -rw-r--r-- | target/i386/kvm.c | 42 | ||||
| -rw-r--r-- | target/i386/machine.c | 31 |
4 files changed, 70 insertions, 9 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index e46ab8f774..008fd93ff1 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5968,6 +5968,7 @@ static void x86_cpu_reset(DeviceState *dev) /* init to reset state */ env->hflags2 |= HF2_GIF_MASK; + env->hflags &= ~HF_GUEST_MASK; cpu_x86_update_cr0(env, 0x60000010); env->a20_mask = ~0x0; diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 06b2e3a5c6..9284f96896 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -2118,6 +2118,11 @@ static inline bool cpu_has_vmx(CPUX86State *env) return env->features[FEAT_1_ECX] & CPUID_EXT_VMX; } +static inline bool cpu_has_svm(CPUX86State *env) +{ + return env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM; +} + /* * In order for a vCPU to enter VMX operation it must have CR4.VMXE set. * Since it was set, CR4.VMXE must remain set as long as vCPU is in diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 6adbff3d74..2b6b7443d2 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1840,16 +1840,18 @@ int kvm_arch_init_vcpu(CPUState *cs) if (max_nested_state_len > 0) { assert(max_nested_state_len >= offsetof(struct kvm_nested_state, data)); - if (cpu_has_vmx(env)) { + if (cpu_has_vmx(env) || cpu_has_svm(env)) { struct kvm_vmx_nested_state_hdr *vmx_hdr; env->nested_state = g_malloc0(max_nested_state_len); env->nested_state->size = max_nested_state_len; env->nested_state->format = KVM_STATE_NESTED_FORMAT_VMX; - vmx_hdr = &env->nested_state->hdr.vmx; - vmx_hdr->vmxon_pa = -1ull; - vmx_hdr->vmcs12_pa = -1ull; + if (cpu_has_vmx(env)) { + vmx_hdr = &env->nested_state->hdr.vmx; + vmx_hdr->vmxon_pa = -1ull; + vmx_hdr->vmcs12_pa = -1ull; + } } } @@ -3873,6 +3875,20 @@ static int kvm_put_nested_state(X86CPU *cpu) return 0; } + /* + * Copy flags that are affected by reset from env->hflags and env->hflags2. + */ + if (env->hflags & HF_GUEST_MASK) { + env->nested_state->flags |= KVM_STATE_NESTED_GUEST_MODE; + } else { + env->nested_state->flags &= ~KVM_STATE_NESTED_GUEST_MODE; + } + if (env->hflags2 & HF2_GIF_MASK) { + env->nested_state->flags |= KVM_STATE_NESTED_GIF_SET; + } else { + env->nested_state->flags &= ~KVM_STATE_NESTED_GIF_SET; + } + assert(env->nested_state->size <= max_nested_state_len); return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_NESTED_STATE, env->nested_state); } @@ -3901,11 +3917,19 @@ static int kvm_get_nested_state(X86CPU *cpu) return ret; } + /* + * Copy flags that are affected by reset to env->hflags and env->hflags2. + */ if (env->nested_state->flags & KVM_STATE_NESTED_GUEST_MODE) { env->hflags |= HF_GUEST_MASK; } else { env->hflags &= ~HF_GUEST_MASK; } + if (env->nested_state->flags & KVM_STATE_NESTED_GIF_SET) { + env->hflags2 |= HF2_GIF_MASK; + } else { + env->hflags2 &= ~HF2_GIF_MASK; + } return ret; } @@ -3917,6 +3941,12 @@ int kvm_arch_put_registers(CPUState *cpu, int level) assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu)); + /* must be before kvm_put_nested_state so that EFER.SVME is set */ + ret = kvm_put_sregs(x86_cpu); + if (ret < 0) { + return ret; + } + if (level >= KVM_PUT_RESET_STATE) { ret = kvm_put_nested_state(x86_cpu); if (ret < 0) { @@ -3950,10 +3980,6 @@ int kvm_arch_put_registers(CPUState *cpu, int level) if (ret < 0) { return ret; } - ret = kvm_put_sregs(x86_cpu); - if (ret < 0) { - return ret; - } /* must be before kvm_put_msrs */ ret = kvm_inject_mce_oldstyle(x86_cpu); if (ret < 0) { diff --git a/target/i386/machine.c b/target/i386/machine.c index 0c96531a56..b1acf7d0ef 100644 --- a/target/i386/machine.c +++ b/target/i386/machine.c @@ -1071,13 +1071,41 @@ static const VMStateDescription vmstate_vmx_nested_state = { } }; +static bool svm_nested_state_needed(void *opaque) +{ + struct kvm_nested_state *nested_state = opaque; + + /* + * HF_GUEST_MASK and HF2_GIF_MASK are already serialized + * via hflags and hflags2, all that's left is the opaque + * nested state blob. + */ + return (nested_state->format == KVM_STATE_NESTED_FORMAT_SVM && + nested_state->size > offsetof(struct kvm_nested_state, data)); +} + +static const VMStateDescription vmstate_svm_nested_state = { + .name = "cpu/kvm_nested_state/svm", + .version_id = 1, + .minimum_version_id = 1, + .needed = svm_nested_state_needed, + .fields = (VMStateField[]) { + VMSTATE_U64(hdr.svm.vmcb_pa, struct kvm_nested_state), + VMSTATE_UINT8_ARRAY(data.svm[0].vmcb12, + struct kvm_nested_state, + KVM_STATE_NESTED_SVM_VMCB_SIZE), + VMSTATE_END_OF_LIST() + } +}; + static bool nested_state_needed(void *opaque) { X86CPU *cpu = opaque; CPUX86State *env = &cpu->env; return (env->nested_state && - vmx_nested_state_needed(env->nested_state)); + (vmx_nested_state_needed(env->nested_state) || + svm_nested_state_needed(env->nested_state))); } static int nested_state_post_load(void *opaque, int version_id) @@ -1139,6 +1167,7 @@ static const VMStateDescription vmstate_kvm_nested_state = { }, .subsections = (const VMStateDescription*[]) { &vmstate_vmx_nested_state, + &vmstate_svm_nested_state, NULL } }; |