diff options
| author | Coleman Dietsch <[email protected]> | 2022-08-08 14:06:07 -0500 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2022-08-10 15:08:25 -0400 |
| commit | c036899136355758dcd88878145036ab4d9c1f26 (patch) | |
| tree | f688e74105ee4732c7c11fac64ce835b95081c4a /tools/perf/scripts/python/intel-pt-events.py | |
| parent | af735db31285fa699384c649be72a9f32ecbb665 (diff) | |
KVM: x86/xen: Stop Xen timer before changing IRQ
Stop Xen timer (if it's running) prior to changing the IRQ vector and
potentially (re)starting the timer. Changing the IRQ vector while the
timer is still running can result in KVM injecting a garbage event, e.g.
vm_xen_inject_timer_irqs() could see a non-zero xen.timer_pending from
a previous timer but inject the new xen.timer_virq.
Fixes: 536395260582 ("KVM: x86/xen: handle PV timers oneshot mode")
Cc: [email protected]
Link: https://syzkaller.appspot.com/bug?id=8234a9dfd3aafbf092cc5a7cd9842e3ebc45fc42
Reported-by: [email protected]
Signed-off-by: Coleman Dietsch <[email protected]>
Reviewed-by: Sean Christopherson <[email protected]>
Acked-by: David Woodhouse <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/intel-pt-events.py')
0 files changed, 0 insertions, 0 deletions