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| author | Avi Kivity <avi@qumranet.com> | 2007-12-26 13:57:04 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 18:01:20 +0200 |
| commit | 774ead3ad9bcbc05ef6aaebb9bdf8b4c3126923b (patch) | |
| tree | 0395ee65292f99bd43ab2cd07beb554d99cb096f /arch/x86/kvm/x86.c | |
| parent | b93463aa59d67b21b4921e30bd5c5dcc7c35ffbd (diff) | |
| download | linux-774ead3ad9bcbc05ef6aaebb9bdf8b4c3126923b.tar.bz2 | |
KVM: Disable vapic support on Intel machines with FlexPriority
FlexPriority accelerates the tpr without any patching.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e7eac27adb7f..1f48ec871035 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -684,9 +684,11 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_USER_MEMORY: case KVM_CAP_SET_TSS_ADDR: case KVM_CAP_EXT_CPUID: - case KVM_CAP_VAPIC: r = 1; break; + case KVM_CAP_VAPIC: + r = !kvm_x86_ops->cpu_has_accelerated_tpr(); + break; default: r = 0; break; |