[PATCH 12/12] KVM: SVM: Add clean-bit for LBR state

[Joerg Roedel]

This patch implements the clean-bit for all LBR related
state. This includes the debugctl, br_from, br_to,
last_excp_from, and last_excp_to msrs.

Signed-off-by: Joerg Roedel <joerg.roe...@amd.com>
---
 arch/x86/kvm/svm.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 7643f83..8966669 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -197,6 +197,7 @@ enum {
        VMCB_DT,         /* GDT, IDT */
        VMCB_SEG,        /* CS, DS, SS, ES, CPL */
        VMCB_CR2,        /* CR2 only */
+       VMCB_LBR,        /* DBGCTL, BR_FROM, BR_TO, LAST_EX_FROM, LAST_EX_TO */
        VMCB_DIRTY_MAX,
 };
 
@@ -2846,6 +2847,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned 
ecx, u64 data)
                        return 1;
 
                svm->vmcb->save.dbgctl = data;
+               mark_dirty(svm->vmcb, VMCB_LBR);
                if (data & (1ULL<<0))
                        svm_enable_lbrv(svm);
                else
-- 
1.7.1


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