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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>
This commit is contained in:
Liu, Jinsong 2012-09-10 06:55:39 +08:00 committed by Avi Kivity
parent 7efd8fa145
commit 92b5265d38
1 changed files with 1 additions and 0 deletions
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arch/x86/kvm/Kconfig
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@ -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: