KVM: SVM: Add clean-bit for GDT and IDT

This patch implements the clean-bit for the base and limit
of the gdt and idt in the vmcb.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e9224ca090a1..cbfb2ac8b4da 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -194,6 +194,7 @@ enum {
         VMCB_NPT,        /* npt_en, nCR3, gPAT */
         VMCB_CR,         /* CR0, CR3, CR4, EFER */
         VMCB_DR,         /* DR6, DR7 */
+        VMCB_DT,         /* GDT, IDT */
         VMCB_DIRTY_MAX,
 };
 
@@ -1304,6 +1305,7 @@ static void svm_set_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
 
         svm->vmcb->save.idtr.limit = dt->size;
         svm->vmcb->save.idtr.base = dt->address ;
+        mark_dirty(svm->vmcb, VMCB_DT);
 }
 
 static void svm_get_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
@@ -1320,6 +1322,7 @@ static void svm_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
 
         svm->vmcb->save.gdtr.limit = dt->size;
         svm->vmcb->save.gdtr.base = dt->address ;
+        mark_dirty(svm->vmcb, VMCB_DT);
 }
 
 static void svm_decache_cr0_guest_bits(struct kvm_vcpu *vcpu)