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ioapic: Reject non-dword accesses to IOWIN register 

Aligns the model with the spec.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Jan Kiszka 2011-10-17 13:11:29 +02:00 committed by Avi Kivity
parent cfee758cc7
commit 1a440963b9
1 changed files with 6 additions and 0 deletions
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6
hw/ioapic.c
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@ -206,6 +206,9 @@ static uint32_t ioapic_mem_readl(void *opaque, target_phys_addr_t addr)
val = s->ioregsel; val = s->ioregsel;
break; break;
case IOAPIC_IOWIN: case IOAPIC_IOWIN:
if (size != 4) {
break;
}
switch (s->ioregsel) { switch (s->ioregsel) {
case IOAPIC_REG_ID: case IOAPIC_REG_ID:
val = s->id << IOAPIC_ID_SHIFT; val = s->id << IOAPIC_ID_SHIFT;
@ -244,6 +247,9 @@ ioapic_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
s->ioregsel = val; s->ioregsel = val;
break; break;
case IOAPIC_IOWIN: case IOAPIC_IOWIN:
if (size != 4) {
break;
}
DPRINTF("write: %08x = %08x\n", s->ioregsel, val); DPRINTF("write: %08x = %08x\n", s->ioregsel, val);
switch (s->ioregsel) { switch (s->ioregsel) {
case IOAPIC_REG_ID: case IOAPIC_REG_ID: