They seem legal in real hardware, even though the EOI
is a write-only register. By "legal" I mean they are completely
ignored, but at least, don't cause any bits to be set at ESR.
Without this patch, some (very recent) linux git trees will fail
to boot in i386.
This is generated from kvm-userspace, but should apply well to
plain qemu too.
Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
qemu/hw/apic.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/qemu/hw/apic.c b/qemu/hw/apic.c
index 92248dd..4102493 100644
--- a/qemu/hw/apic.c
+++ b/qemu/hw/apic.c
@@ -615,6 +615,8 @@ static uint32_t apic_mem_readl(void *opaque,
target_phys_addr_t addr)
/* ppr */
val = apic_get_ppr(s);
break;
+ case 0x0b:
+ break;
case 0x0d:
val = s->log_dest << 24;
break;
--
1.5.0.6
-------------------------------------------------------------------------
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