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[Qemu-devel] [PATCH 2/2] ioapic: Reject non-dword accesses to IOWIN regi
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From: |
Jan Kiszka |
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Subject: |
[Qemu-devel] [PATCH 2/2] ioapic: Reject non-dword accesses to IOWIN register |
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Date: |
Mon, 17 Oct 2011 13:11:29 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Aligns the model with the spec.
Signed-off-by: Jan Kiszka <address@hidden>
---
hw/ioapic.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/hw/ioapic.c b/hw/ioapic.c
index 56b1612..eb75766 100644
--- a/hw/ioapic.c
+++ b/hw/ioapic.c
@@ -208,6 +208,9 @@ ioapic_mem_read(void *opaque, target_phys_addr_t addr,
unsigned int size)
val = s->ioregsel;
break;
case IOAPIC_IOWIN:
+ if (size != 4) {
+ break;
+ }
switch (s->ioregsel) {
case IOAPIC_REG_ID:
val = s->id << IOAPIC_ID_SHIFT;
@@ -247,6 +250,9 @@ ioapic_mem_write(void *opaque, target_phys_addr_t addr,
uint64_t val,
s->ioregsel = val;
break;
case IOAPIC_IOWIN:
+ if (size != 4) {
+ break;
+ }
DPRINTF("write: %08x = %08x\n", s->ioregsel, val);
switch (s->ioregsel) {
case IOAPIC_REG_ID:
--
1.7.3.4