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authorMarcelo Tosatti <mtosatti@redhat.com>2008-12-30 15:55:06 -0200
committerAvi Kivity <avi@redhat.com>2009-03-24 11:02:55 +0200
commit52d939a0bf44081bc9f69b4fbdc9e7f416df27c7 (patch)
tree27a14385847f5585cdccaf5e5c18074595642970 /arch/x86/kvm/i8254.h
parent61a6bd672bda3b9468bf5895c1be085c4e481138 (diff)
downloadop-kernel-dev-52d939a0bf44081bc9f69b4fbdc9e7f416df27c7.zip
op-kernel-dev-52d939a0bf44081bc9f69b4fbdc9e7f416df27c7.tar.gz
KVM: PIT: provide an option to disable interrupt reinjection
Certain clocks (such as TSC) in older 2.6 guests overaccount for lost ticks, causing severe time drift. Interrupt reinjection magnifies the problem. Provide an option to disable it. [avi: allow room for expansion in case we want to disable reinjection of other timers] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/i8254.h')
-rw-r--r--arch/x86/kvm/i8254.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/i8254.h b/arch/x86/kvm/i8254.h
index 4178022..76959c4 100644
--- a/arch/x86/kvm/i8254.h
+++ b/arch/x86/kvm/i8254.h
@@ -9,6 +9,7 @@ struct kvm_kpit_timer {
s64 period; /* unit: ns */
s64 scheduled;
atomic_t pending;
+ bool reinject;
};
struct kvm_kpit_channel_state {
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