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Commit b53ba3f9 authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity
Browse files

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: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 0574dec0

arch/x86/kvm/svm.c

+2 −0
Original line number Diff line number Diff line
@@ -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