diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-03-23 17:51:36 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-02 10:57:12 -0700 |
| commit | dfccb2ea806875b9379f72af1a6f86f3811b2e88 (patch) | |
| tree | 390a7822bb0fa54038bfe91475ce7680a399f40e | |
| parent | fcae516675463fce5123d5dc0c861ad9dd283ffe (diff) | |
KVM: x86: disable kvmclock on non constant TSC hosts
(cherry picked from abe6655dd699069b53bcccbc65b2717f60203b12)
This is better.
Currently, this code path is posing us big troubles,
and we won't have a decent patch in time. So, temporarily
disable it.
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -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 6c7f4ab955de..f1db5ba48a27 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -906,7 +906,6 @@ 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_CLOCKSOURCE: case KVM_CAP_PIT: case KVM_CAP_NOP_IO_DELAY: case KVM_CAP_MP_STATE: @@ -931,6 +930,9 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_IOMMU: r = intel_iommu_found(); break; + case KVM_CAP_CLOCKSOURCE: + r = boot_cpu_has(X86_FEATURE_CONSTANT_TSC); + break; default: r = 0; break; |