KVM: x86: Add x86 callback for intercept check

This patch adds a callback into kvm_x86_ops so that svm and
vmx code can do intercept checks on emulated instructions.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index cb43e98eff63..798ebe695f1d 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3868,6 +3868,13 @@ static void svm_fpu_deactivate(struct kvm_vcpu *vcpu)
         update_cr0_intercept(svm);
 }
 
+static int svm_check_intercept(struct kvm_vcpu *vcpu,
+                               struct x86_instruction_info *info,
+                               enum x86_intercept_stage stage)
+{
+        return X86EMUL_CONTINUE;
+}
+
 static struct kvm_x86_ops svm_x86_ops = {
         .cpu_has_kvm_support = has_svm,
         .disabled_by_bios = is_disabled,
@@ -3953,6 +3960,8 @@ static struct kvm_x86_ops svm_x86_ops = {
         .adjust_tsc_offset = svm_adjust_tsc_offset,
 
         .set_tdp_cr3 = set_tdp_cr3,
+
+        .check_intercept = svm_check_intercept,
 };
 
 static int __init svm_init(void)