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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2008-06-06 21:37:36 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-06-24 11:16:59 +0200 |
| commit | 06e05645661211b9eaadaf6344c335d2e80f0ba2 (patch) | |
| tree | 8846d2a5052aec44141e811c0a76fdb39c2e77ca /crypto/twofish_common.c | |
| parent | KVM: Fix race between timer migration and vcpu migration (diff) | |
| download | linux-06e05645661211b9eaadaf6344c335d2e80f0ba2.tar.xz linux-06e05645661211b9eaadaf6344c335d2e80f0ba2.zip | |
KVM: close timer injection race window in __vcpu_run
If a timer fires after kvm_inject_pending_timer_irqs() but before
local_irq_disable() the code will enter guest mode and only inject such
timer interrupt the next time an unrelated event causes an exit.
It would be simpler if the timer->pending irq conversion could be done
with IRQ's disabled, so that the above problem cannot happen.
For now introduce a new vcpu requests bit to cancel guest entry.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'crypto/twofish_common.c')
0 files changed, 0 insertions, 0 deletions