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| author | Avi Kivity <avi@qumranet.com> | 2008-06-17 15:36:36 -0700 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-06-24 12:23:55 +0300 |
| commit | 4fa6b9c5dc4134bdeac341d731a87783cc11ca10 (patch) | |
| tree | 3542acc44ec41a0c9f79fbda570f64d315bdb0b1 /virt/kvm/ioapic.h | |
| parent | 6bf6a9532fd03ad719f0c86654f16ef777b78fc6 (diff) | |
| download | op-kernel-dev-4fa6b9c5dc4134bdeac341d731a87783cc11ca10.zip op-kernel-dev-4fa6b9c5dc4134bdeac341d731a87783cc11ca10.tar.gz | |
KVM: ioapic: fix lost interrupt when changing a device's irq
The ioapic acknowledge path translates interrupt vectors to irqs. It
currently uses a first match algorithm, stopping when it finds the first
redirection table entry containing the vector. That fails however if the
guest changes the irq to a different line, leaving the old redirection table
entry in place (though masked). Result is interrupts not making it to the
guest.
Fix by always scanning the entire redirection table.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'virt/kvm/ioapic.h')
0 files changed, 0 insertions, 0 deletions
