* [PATCH] x86-64: fix restoring of hypercall arguments after trace callout
@ 2010-12-15 10:49 Jan Beulich
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From: Jan Beulich @ 2010-12-15 10:49 UTC (permalink / raw)
To: xen-devel@lists.xensource.com
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Signed-off-by: Jan Beulich <jbeulich@novell.com>
--- a/xen/arch/x86/x86_64/entry.S
+++ b/xen/arch/x86/x86_64/entry.S
@@ -156,8 +156,8 @@ ENTRY(syscall_enter)
movq UREGS_rsi+SHADOW_BYTES(%rsp),%rsi /* Arg 2 */
movq UREGS_rdx+SHADOW_BYTES(%rsp),%rdx /* Arg 3 */
movq UREGS_r10+SHADOW_BYTES(%rsp),%rcx /* Arg 4 */
- movq UREGS_rdi+SHADOW_BYTES(%rsp),%r8 /* Arg 5 */
- movq UREGS_rbp+SHADOW_BYTES(%rsp),%r9 /* Arg 6 */
+ movq UREGS_r8 +SHADOW_BYTES(%rsp),%r8 /* Arg 5 */
+ movq UREGS_r9 +SHADOW_BYTES(%rsp),%r9 /* Arg 6 */
#undef SHADOW_BYTES
1: leaq hypercall_table(%rip),%r10
PERFC_INCR(PERFC_hypercalls, %rax, %rbx)
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Signed-off-by: Jan Beulich <jbeulich@novell.com>
--- a/xen/arch/x86/x86_64/entry.S
+++ b/xen/arch/x86/x86_64/entry.S
@@ -156,8 +156,8 @@ ENTRY(syscall_enter)
movq UREGS_rsi+SHADOW_BYTES(%rsp),%rsi /* Arg 2 */
movq UREGS_rdx+SHADOW_BYTES(%rsp),%rdx /* Arg 3 */
movq UREGS_r10+SHADOW_BYTES(%rsp),%rcx /* Arg 4 */
- movq UREGS_rdi+SHADOW_BYTES(%rsp),%r8 /* Arg 5 */
- movq UREGS_rbp+SHADOW_BYTES(%rsp),%r9 /* Arg 6 */
+ movq UREGS_r8 +SHADOW_BYTES(%rsp),%r8 /* Arg 5 */
+ movq UREGS_r9 +SHADOW_BYTES(%rsp),%r9 /* Arg 6 */
#undef SHADOW_BYTES
1: leaq hypercall_table(%rip),%r10
PERFC_INCR(PERFC_hypercalls, %rax, %rbx)
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2010-12-15 10:49 [PATCH] x86-64: fix restoring of hypercall arguments after trace callout Jan Beulich
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