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KVM: x86: disable kvmclock on non constant TSC hosts

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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>
This commit is contained in:
Marcelo Tosatti 2009-02-10 20:59:45 -02:00 committed by Avi Kivity
parent d2a8284e8f
commit abe6655dd6
1 changed files with 3 additions and 1 deletions
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4
arch/x86/kvm/x86.c
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@ -967,7 +967,6 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
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:
@ -992,6 +991,9 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_IOMMU:
r = iommu_found();
break;
case KVM_CAP_CLOCKSOURCE:
r = boot_cpu_has(X86_FEATURE_CONSTANT_TSC);
break;
default:
r = 0;
break;