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authorGerd Hoffmann <kraxel@redhat.com>2009-02-04 17:52:04 +0100
committerAvi Kivity <avi@redhat.com>2009-03-24 11:03:09 +0200
commitc807660407a695f390034e402edfe544a1d2e40c (patch)
treef362e26ed5aee6458a0f84aa60f52dfb4ea6437e /virt
parent49cd7d2238e44f7ee4269481cd8a1261cc8f93a5 (diff)
downloadlinux-c807660407a695f390034e402edfe544a1d2e40c.tar.bz2
KVM: Fix kvmclock on !constant_tsc boxes
kvmclock currently falls apart on machines without constant tsc. This patch fixes it. Changes: * keep tsc frequency in a per-cpu variable. * handle kvmclock update using a new request flag, thus checking whenever we need an update each time we enter guest context. * use a cpufreq notifier to track frequency changes and force kvmclock updates. * send ipis to kick cpu out of guest context if needed to make sure the guest doesn't see stale values. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions