When a linux guest live migrates to a new host and subsequently
reboots, the guest no longer has the correct time. This is due
to a failure to apply the kvmclock offset to the wall clock time.
The first patch addresses this failure directly, while the second
patch detects when the offset is no longer needed, and zeroes the
offset as a matter of cleaning up migration state which is no longer
relevant. Both patches address the issue, but in different ways.
Bruce Rogers (2):
kvm: kvmclock: apply kvmclock offset to guest wall clock time
kvm: kvmclock: eliminate kvmclock offset when time page count goes to
zero
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/x86.c | 9 ++++++++-
2 files changed, 9 insertions(+), 1 deletions(-)
--
1.7.7
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