KVM: SVM: Add clean-bit for intercetps, tsc-offset and pause filter count

This patch adds the clean-bit for intercepts-vectors, the
TSC offset and the pause-filter count to the appropriate
places. The IO and MSR permission bitmaps are not subject to
this bit.

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 e73cbc3..052561c 100644 (file)
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -186,6 +186,8 @@ static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr,
                                      bool has_error_code, u32 error_code);
 
 enum {
+       VMCB_INTERCEPTS, /* Intercept vectors, TSC offset,
+                           pause filter count */
        VMCB_DIRTY_MAX,
 };
 
@@ -217,6 +219,8 @@ static void recalc_intercepts(struct vcpu_svm *svm)
        struct vmcb_control_area *c, *h;
        struct nested_state *g;
 
+       mark_dirty(svm->vmcb, VMCB_INTERCEPTS);
+
        if (!is_guest_mode(&svm->vcpu))
                return;
 
@@ -854,6 +858,8 @@ static void svm_write_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
        }
 
        svm->vmcb->control.tsc_offset = offset + g_tsc_offset;
+
+       mark_dirty(svm->vmcb, VMCB_INTERCEPTS);
 }
 
 static void svm_adjust_tsc_offset(struct kvm_vcpu *vcpu, s64 adjustment)
@@ -863,6 +869,7 @@ static void svm_adjust_tsc_offset(struct kvm_vcpu *vcpu, s64 adjustment)
        svm->vmcb->control.tsc_offset += adjustment;
        if (is_guest_mode(vcpu))
                svm->nested.hsave->control.tsc_offset += adjustment;
+       mark_dirty(svm->vmcb, VMCB_INTERCEPTS);
 }
 
 static void init_vmcb(struct vcpu_svm *svm)