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| author | Liu, Jinsong <jinsong.liu@intel.com> | 2012-09-10 06:55:39 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-09-10 11:10:03 +0300 |
| commit | 92b5265d38f6a4d33e9d43974f176f18547687d6 (patch) | |
| tree | f647126be65be95cce237c8c395591849b478e33 /arch/x86/kvm/Kconfig | |
| parent | 7efd8fa145c340a68a9cd758012b6e0ae4883c93 (diff) | |
| download | linux-92b5265d38f6a4d33e9d43974f176f18547687d6.tar.gz linux-92b5265d38f6a4d33e9d43974f176f18547687d6.tar.bz2 linux-92b5265d38f6a4d33e9d43974f176f18547687d6.zip | |
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/Kconfig')
| -rw-r--r-- | arch/x86/kvm/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 45c044f0fff7..586f00059805 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: |