From: Nicușor Cîțu <[email protected]> This function will be used to check if the write access for a specific MSR is already intercepted. The information will be used to restore the interception status when the introspection tool is no longer interested in that MSR.
Signed-off-by: Nicușor Cîțu <[email protected]> Signed-off-by: Adalbert Lazăr <[email protected]> --- arch/x86/include/asm/kvm-x86-ops.h | 1 + arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/svm/svm.c | 1 + arch/x86/kvm/vmx/vmx.c | 1 + 4 files changed, 4 insertions(+) diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h index 30d01c9ed31b..90e913408c6e 100644 --- a/arch/x86/include/asm/kvm-x86-ops.h +++ b/arch/x86/include/asm/kvm-x86-ops.h @@ -127,6 +127,7 @@ KVM_X86_OP(cr3_write_intercepted) KVM_X86_OP(desc_ctrl_supported) KVM_X86_OP(control_desc_intercept) KVM_X86_OP(desc_intercepted) +KVM_X86_OP(msr_write_intercepted) #undef KVM_X86_OP #undef KVM_X86_OP_NULL diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 1182b0fbd245..1e77cb825ec4 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1331,6 +1331,7 @@ struct kvm_x86_ops { void (*update_exception_bitmap)(struct kvm_vcpu *vcpu); int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); + bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr); u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); void (*get_segment)(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index c1b1e5cdd508..31109961183e 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -4689,6 +4689,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .get_msr_feature = svm_get_msr_feature, .get_msr = svm_get_msr, .set_msr = svm_set_msr, + .msr_write_intercepted = msr_write_intercepted, .get_segment_base = svm_get_segment_base, .get_segment = svm_get_segment, .set_segment = svm_set_segment, diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 8f34b19827a3..b036aed96912 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7637,6 +7637,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = { .get_msr_feature = vmx_get_msr_feature, .get_msr = vmx_get_msr, .set_msr = vmx_set_msr, + .msr_write_intercepted = msr_write_intercepted, .get_segment_base = vmx_get_segment_base, .get_segment = vmx_get_segment, .set_segment = vmx_set_segment, _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
