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>

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e9224ca090a156cda5aea951890434691ea17042..cbfb2ac8b4da40bc07f1e6d61f8ad859d4a303b8 100644 (file)
--- 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)