KVM: PIT: provide an option to disable interrupt reinjection

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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>

...

This commit is contained in:

Marcelo Tosatti 2008-12-30 15:55:06 -02:00 • committed by Avi Kivity

parent 61a6bd672b

commit 52d939a0bf

5 changed files with 35 additions and 0 deletions

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5

arch/x86/include/asm/kvm.h

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4

arch/x86/kvm/i8254.c

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1

arch/x86/kvm/i8254.h

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arch/x86/kvm/x86.c

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include/linux/kvm.h

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