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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-04-09 16:04:32 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-04-27 12:01:23 +0300 |
| commit | 3564990af1b9f77a63692c1079e9c41af229f066 (patch) | |
| tree | 5420c89cbab3f70db4efbb0c4042cfb42a707115 | |
| parent | d4c9ff2d1b78e385471b3f4d80c0596909926ef7 (diff) | |
| download | linux-3.10-3564990af1b9f77a63692c1079e9c41af229f066.tar.gz linux-3.10-3564990af1b9f77a63692c1079e9c41af229f066.tar.bz2 linux-3.10-3564990af1b9f77a63692c1079e9c41af229f066.zip | |
KVM: SVM: do not intercept task switch with NPT
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>
| -rw-r--r-- | 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 da3ddef4760..8d04aed72f3 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); |