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authorLiu, Jinsong <jinsong.liu@intel.com>2012-09-10 06:55:39 +0800
committerAvi Kivity <avi@redhat.com>2012-09-10 11:10:03 +0300
commit92b5265d38f6a4d33e9d43974f176f18547687d6 (patch)
treef647126be65be95cce237c8c395591849b478e33 /arch/x86/kvm
parent7efd8fa145c340a68a9cd758012b6e0ae4883c93 (diff)
downloadop-kernel-dev-92b5265d38f6a4d33e9d43974f176f18547687d6.zip
op-kernel-dev-92b5265d38f6a4d33e9d43974f176f18547687d6.tar.gz
KVM: Depend on HIGH_RES_TIMERS
KVM lapic timer and tsc deadline timer based on hrtimer, setting a leftmost node to rb tree and then do hrtimer reprogram. If hrtimer not configured as high resolution, hrtimer_enqueue_reprogram do nothing and then make kvm lapic timer and tsc deadline timer fail. Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 45c044f..586f000 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -20,6 +20,7 @@ if VIRTUALIZATION
config KVM
tristate "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM
+ depends on HIGH_RES_TIMERS
# for device assignment:
depends on PCI
# for TASKSTATS/TASK_DELAY_ACCT:
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