31 lines
1.0 KiB
Diff
31 lines
1.0 KiB
Diff
# HG changeset patch
|
|
# User Jan Beulich <jbeulich@suse.com>
|
|
# Date 1357561709 -3600
|
|
# Node ID 8e942f2f3b45edc5bb1f7a6e05de288342426f0d
|
|
# Parent 23c4bbc0111dd807561b2c62cbc5798220943a0d
|
|
x86: compat_show_guest_stack() should not truncate MFN
|
|
|
|
Re-using "addr" here was a mistake, as it is a 32-bit quantity.
|
|
|
|
Signed-off-by: Jan Beulich <jbeulich@suse.com>
|
|
Acked-by: Ian Campbell <ian.campbell@citrix.com>
|
|
Acked-by: Keir Fraser <keir@xen.org>
|
|
|
|
--- a/xen/arch/x86/x86_64/compat/traps.c
|
|
+++ b/xen/arch/x86/x86_64/compat/traps.c
|
|
@@ -20,11 +20,12 @@ void compat_show_guest_stack(struct vcpu
|
|
if ( v != current )
|
|
{
|
|
struct vcpu *vcpu;
|
|
+ unsigned long mfn;
|
|
|
|
ASSERT(guest_kernel_mode(v, regs));
|
|
- addr = read_cr3() >> PAGE_SHIFT;
|
|
+ mfn = read_cr3() >> PAGE_SHIFT;
|
|
for_each_vcpu( v->domain, vcpu )
|
|
- if ( pagetable_get_pfn(vcpu->arch.guest_table) == addr )
|
|
+ if ( pagetable_get_pfn(vcpu->arch.guest_table) == mfn )
|
|
break;
|
|
if ( !vcpu )
|
|
{
|