KVM: Fix wallclock version writing race

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Wallclock writing uses an unprotected global variable to hold the version;
this can cause one guest to interfere with another if both write their
wallclock at the same time.

Acked-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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This commit is contained in:

Avi Kivity 2010-05-04 15:00:37 +03:00

parent 8facbbff07

commit 9ed3c444ab

1 changed files with 10 additions and 2 deletions

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arch/x86/kvm/x86.c

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