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i8259: Update IRQ state after reset 

MIPS and PPC users of the i8259 output signal expect us to report state
updates also after reset. As no consumer (including the master PIC) can
misinterpret the deassert as an activation event, it is safe to simply
update the IRQ state after reset.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Jan Kiszka 2011-10-07 09:19:44 +02:00 committed by Blue Swirl
parent 78ef2b6989
commit 51d9e939b8
1 changed files with 1 additions and 2 deletions
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3
hw/i8259.c
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@ -283,6 +283,7 @@ static void pic_reset(void *opaque)
s->init4 = 0;
s->single_mode = 0;
/* Note: ELCR is not reset */
pic_update_irq(s->pics_state);
}
static void pic_ioport_write(void *opaque, target_phys_addr_t addr64,
@ -298,8 +299,6 @@ static void pic_ioport_write(void *opaque, target_phys_addr_t addr64,
if (val & 0x10) {
/* init */
pic_reset(s);
/* deassert a pending interrupt */
qemu_irq_lower(s->pics_state->pics[0].int_out);
s->init_state = 1;
s->init4 = val & 1;
s->single_mode = val & 2;