Messages in this thread Patch in this message | | | From | Avi Kivity <> | Subject | [PATCH 10/31] KVM: SVM: do not intercept task switch with NPT | Date | Mon, 21 Apr 2008 13:29:36 +0300 |
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From: Joerg Roedel <joerg.roedel@amd.com>
When KVM uses NPT there is no reason to intercept task switches. This patch removes the intercept for it in that case.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com> --- arch/x86/kvm/svm.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index da3ddef..8d04aed 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -591,6 +591,7 @@ static void init_vmcb(struct vcpu_svm *svm) if (npt_enabled) { /* Setup VMCB for Nested Paging */ control->nested_ctl = 1; + control->intercept &= ~(1ULL << INTERCEPT_TASK_SWITCH); control->intercept_exceptions &= ~(1 << PF_VECTOR); control->intercept_cr_read &= ~(INTERCEPT_CR0_MASK| INTERCEPT_CR3_MASK); -- 1.5.5
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