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| author | Glauber Costa <glommer@redhat.com> | 2011-07-11 15:28:19 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-24 11:49:36 +0300 |
| commit | d910f5c1064d7ff09c31b0191564f9f99e210f91 (patch) | |
| tree | fcc977e4b0b6f1fc9dbdcc485753a7422147a40e /arch/x86/kernel/kvmclock.c | |
| parent | 095c0aa83e52d6c3dd7168610746703921f570af (diff) | |
| download | blackbird-op-linux-d910f5c1064d7ff09c31b0191564f9f99e210f91.tar.gz blackbird-op-linux-d910f5c1064d7ff09c31b0191564f9f99e210f91.zip | |
KVM guest: KVM Steal time registration
This patch implements the kvm bits of the steal time infrastructure.
The most important part of it, is the steal time clock. It is an
continuous clock that shows the accumulated amount of steal time
since vcpu creation. It is supposed to survive cpu offlining/onlining.
[marcelo: fix build with CONFIG_KVM_GUEST=n]
Signed-off-by: Glauber Costa <glommer@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Tested-by: Eric B Munson <emunson@mgebm.net>
CC: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Avi Kivity <avi@redhat.com>
CC: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kernel/kvmclock.c')
| -rw-r--r-- | arch/x86/kernel/kvmclock.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 6389a6bca11b..c1a0188e29ae 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -160,6 +160,7 @@ static void __cpuinit kvm_setup_secondary_clock(void) static void kvm_crash_shutdown(struct pt_regs *regs) { native_write_msr(msr_kvm_system_time, 0, 0); + kvm_disable_steal_time(); native_machine_crash_shutdown(regs); } #endif @@ -167,6 +168,7 @@ static void kvm_crash_shutdown(struct pt_regs *regs) static void kvm_shutdown(void) { native_write_msr(msr_kvm_system_time, 0, 0); + kvm_disable_steal_time(); native_machine_shutdown(); } |
