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| author | Jan Kiszka | 2012-07-09 16:42:30 +0200 |
|---|---|---|
| committer | Avi Kivity | 2012-07-10 10:31:04 +0200 |
| commit | 3db3659bf60094657e1465cc809acb09551816ee (patch) | |
| tree | fd73a6f5194f5d7e322c1a15a3f571fcc86144b0 /cpu-exec.c | |
| parent | kvm: expose tsc deadline timer feature to guest (diff) | |
| download | qemu-3db3659bf60094657e1465cc809acb09551816ee.tar.gz qemu-3db3659bf60094657e1465cc809acb09551816ee.tar.xz qemu-3db3659bf60094657e1465cc809acb09551816ee.zip | |
apic: Resolve potential endless loop around apic_update_irq
Commit d96e173769 refactored the reinjection of pending PIC interrupts.
However, it missed the potential loop of apic_update_irq ->
apic_deliver_pic_intr -> apic_local_deliver -> apic_set_irq ->
apic_update_irq that /could/ occur if LINT0 is injected as APIC_DM_FIXED
and that vector is currently blocked via TPR.
Resolve this by reinjecting only where it matters: inside
apic_get_interrupt. This function may clear a vector while a
PIC-originated reason still exists.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'cpu-exec.c')
0 files changed, 0 insertions, 0 deletions