diff options
| author | Ignacio Alvarado <ikalvarado@google.com> | 2016-11-04 12:15:55 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:57:41 +0200 |
| commit | 1ada45076ce30fede8a419edd888c29187af4919 (patch) | |
| tree | dc3c306884e3384fd5839f65e80bfd7bf4182651 /drivers | |
| parent | a99dd0ed380e622b44dc64e575cbbefc242c3eb9 (diff) | |
KVM: Disable irq while unregistering user notifier
commit 1650b4ebc99da4c137bfbfc531be4a2405f951dd upstream.
Function user_notifier_unregister should be called only once for each
registered user notifier.
Function kvm_arch_hardware_disable can be executed from an IPI context
which could cause a race condition with a VCPU returning to user mode
and attempting to unregister the notifier.
Signed-off-by: Ignacio Alvarado <ikalvarado@google.com>
Fixes: 18863bdd60f8 ("KVM: x86 shared msr infrastructure")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim KrÄmáŠ<rkrcmar@redhat.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions