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[Xen-ia64-devel] [PATCH] fix io access from the inside of UC physical ad
| To: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-ia64-devel] [PATCH] fix io access from the inside of UC physical address |
| From: | Kouya Shimura <kouya@xxxxxxxxxxxxxx> |
| Date: | Fri, 7 Mar 2008 19:53:02 +0900 |
| Delivery-date: | Fri, 07 Mar 2008 02:53:12 -0800 |
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I/O access from the inside of UC physical address causes a panic on HVM. Singed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx> diff -r 71a8366fb212 xen/arch/ia64/vmx/vmmu.c
--- a/xen/arch/ia64/vmx/vmmu.c Fri Feb 29 09:19:58 2008 -0700
+++ b/xen/arch/ia64/vmx/vmmu.c Fri Mar 07 19:34:21 2008 +0900
@@ -160,7 +160,7 @@ fetch_code(VCPU *vcpu, u64 gip, IA64_BUN
again:
if ( !(VCPU(vcpu, vpsr) & IA64_PSR_IT) ) { // I-side physical mode
- gpip = gip;
+ gpip = (gip<<1)>>1; // clear UC bit
}
else {
tlb = vtlb_lookup(vcpu, gip, ISIDE_TLB);
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