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| author |   Avi Kivity <avi@redhat.com> | 2010-12-02 17:52:50 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 11:30:18 +0200 |
| commit | b7c4145ba2eb0717db0ddac1b5f7f48012189c53 (patch) | |
| tree | 9b259970f56451ecb0f5d84ecd81d67386f63224 /lib | |
| parent | KVM: SVM: Use get_host_vmcb function in svm_get_msr for TSC (diff) | |
| download | linux-dev-b7c4145ba2eb0717db0ddac1b5f7f48012189c53.tar.xz linux-dev-b7c4145ba2eb0717db0ddac1b5f7f48012189c53.zip | |
KVM: Don't spin on virt instruction faults during reboot
Since vmx blocks INIT signals, we disable virtualization extensions during
reboot. This leads to virtualization instructions faulting; we trap these
faults and spin while the reboot continues.
Unfortunately spinning on a non-preemptible kernel may block a task that
reboot depends on; this causes the reboot to hang.
Fix by skipping over the instruction and hoping for the best.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions