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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2011-10-07 09:19:42 +0200 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2011-10-16 11:11:04 +0000 |
| commit | afdb06f84920c4949da904b045cdd105caf2579c (patch) | |
| tree | 4b5cf8ca8cb059375724fb6e173ed87299669c08 /hw/i8259.c | |
| parent | 2e2b22749985f81f33f79c5cab8994ea45bb9a2b (diff) | |
| download | qemu-afdb06f84920c4949da904b045cdd105caf2579c.tar.gz qemu-afdb06f84920c4949da904b045cdd105caf2579c.tar.bz2 qemu-afdb06f84920c4949da904b045cdd105caf2579c.zip | |
i8259: Do not update IRQ output after spurious pic_poll_read
If pic_poll_read finds no pending IRQ and return a spurious one instead,
no PIC state is changed, thus we do not need to call pic_update_irq.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'hw/i8259.c')
| -rw-r--r-- | hw/i8259.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/hw/i8259.c b/hw/i8259.c index 65123bd2dc..cddd3c769e 100644 --- a/hw/i8259.c +++ b/hw/i8259.c @@ -393,7 +393,6 @@ static uint32_t pic_poll_read(PicState *s) pic_update_irq(s->pics_state); } else { ret = 0x07; - pic_update_irq(s->pics_state); } return ret; |