From b53ba3f9cc0b5ac21a86a95c702768f871b02610 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 3 Dec 2010 11:45:59 +0100
Subject: KVM: SVM: Add clean-bit for LBR state
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.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/x86/kvm/svm.c | 2 ++
1 file changed, 2 insertions(+)
(limited to 'arch')
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index d2ddad9ca63..58cabb550af 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,
};
@@ -2847,6 +2848,7 @@ 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
--
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