# HG changeset patch
# User Steven Hand <steven@xxxxxxxxxxxxx>
# Date 1176820904 -3600
# Node ID b9f579e2d6a7a083ade36eebe7fdb785183a8142
# Parent 20dba1b883f29307e5486a3855320e0cfd8263a2
Fix for bug introduced by cset 14859:a9aa7c29eda8 - implement IOREQ_TYPE_SUB
for intercepted mmio access too.
Signed-off-by: Steven Hand <steven@xxxxxxxxxxxxx>
---
xen/arch/x86/hvm/intercept.c | 9 +++++++++
1 files changed, 9 insertions(+)
diff -r 20dba1b883f2 -r b9f579e2d6a7 xen/arch/x86/hvm/intercept.c
--- a/xen/arch/x86/hvm/intercept.c Tue Apr 17 13:22:24 2007 +0100
+++ b/xen/arch/x86/hvm/intercept.c Tue Apr 17 15:41:44 2007 +0100
@@ -148,6 +148,15 @@ static inline void hvm_mmio_access(struc
p->data = tmp1;
break;
+ case IOREQ_TYPE_SUB:
+ tmp1 = read_handler(v, p->addr, p->size);
+ if ( p->dir == IOREQ_WRITE ) {
+ tmp2 = tmp1 - (unsigned long) p->data;
+ write_handler(v, p->addr, p->size, tmp2);
+ }
+ p->data = tmp1;
+ break;
+
default:
printk("hvm_mmio_access: error ioreq type %x\n", p->type);
domain_crash_synchronous();
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