diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index d73ed48587e4e190963bfbfc5a6b32cc880201e1..7ebf9fe670cd0b242b15c84e58ebd7a1dfaa3800 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -511,6 +511,7 @@ struct kvm_x86_ops { void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); + void (*fpu_activate)(struct kvm_vcpu *vcpu); void (*fpu_deactivate)(struct kvm_vcpu *vcpu); void (*tlb_flush)(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index a281368c3b96bb9b660abb0760cc6368ad0625cd..800208a60a5123e510c06ccfc5b800b09633a726 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1259,12 +1259,17 @@ static int ud_interception(struct vcpu_svm *svm) return 1; } -static int nm_interception(struct vcpu_svm *svm) +static void svm_fpu_activate(struct kvm_vcpu *vcpu) { + struct vcpu_svm *svm = to_svm(vcpu); svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR); svm->vcpu.fpu_active = 1; update_cr0_intercept(svm); +} +static int nm_interception(struct vcpu_svm *svm) +{ + svm_fpu_activate(&svm->vcpu); return 1; } @@ -2977,6 +2982,7 @@ static struct kvm_x86_ops svm_x86_ops = { .cache_reg = svm_cache_reg, .get_rflags = svm_get_rflags, .set_rflags = svm_set_rflags, + .fpu_activate = svm_fpu_activate, .fpu_deactivate = svm_fpu_deactivate, .tlb_flush = svm_flush_tlb, diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b7e812e9c2993a39f7741ba0e52a2ecedb4a2bc1..fad871cbed192d515aa2c179db19067a400f2f69 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -3002,6 +3002,7 @@ static int handle_cr(struct kvm_vcpu *vcpu) vmx_set_cr0(vcpu, kvm_read_cr0_bits(vcpu, ~X86_CR0_TS)); trace_kvm_cr_write(0, kvm_read_cr0(vcpu)); skip_emulated_instruction(vcpu); + vmx_fpu_activate(vcpu); return 1; case 1: /*mov from cr*/ switch (cr) { diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c61ec9c69267cdc64efb0ac2f5079ddb885b8e53..4db0c8a9082e36522742ac8728d92d9b42a9efb9 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3269,6 +3269,7 @@ int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address) int emulate_clts(struct kvm_vcpu *vcpu) { kvm_x86_ops->set_cr0(vcpu, kvm_read_cr0_bits(vcpu, ~X86_CR0_TS)); + kvm_x86_ops->fpu_activate(vcpu); return X86EMUL_CONTINUE; }