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AHCI: Masking of IRQs actually masks them 

When masking IRQ lines, we should actually mask them out and not declare
them active anymore. Once we mask them in again, they are allowed to trigger
again.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alexander Graf 2012-01-30 23:29:48 +01:00 committed by Kevin Wolf
parent 6d1acda8f1
commit b867672884
1 changed files with 2 additions and 0 deletions
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2
hw/ide/ahci.c
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@ -146,6 +146,7 @@ static void ahci_check_irq(AHCIState *s)
DPRINTF(-1, "check irq %#x\n", s->control_regs.irqstatus);
s->control_regs.irqstatus = 0;
for (i = 0; i < s->ports; i++) {
AHCIPortRegs *pr = &s->dev[i].port_regs;
if (pr->irq_stat & pr->irq_mask) {
@ -216,6 +217,7 @@ static void ahci_port_write(AHCIState *s, int port, int offset, uint32_t val)
break;
case PORT_IRQ_STAT:
pr->irq_stat &= ~val;
ahci_check_irq(s);
break;
case PORT_IRQ_MASK:
pr->irq_mask = val & 0xfdc000ff;