[Xen-changelog] [xen-unstable] x86_emulate: Correct RIP-relative addressing offset for SHLD/SHRD with

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1199873491 0
# Node ID b5b3e27f1af3f709a7795d407b567a7b4db533f0
# Parent  4c1a0d2a318d5cd404f5411e31ba425f223a0e66
x86_emulate: Correct RIP-relative addressing offset for SHLD/SHRD with
immediate byte third operand.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
---
 xen/arch/x86/x86_emulate.c |    3 +++
 1 files changed, 3 insertions(+)

diff -r 4c1a0d2a318d -r b5b3e27f1af3 xen/arch/x86/x86_emulate.c
--- a/xen/arch/x86/x86_emulate.c        Wed Jan 09 10:09:04 2008 +0000
+++ b/xen/arch/x86/x86_emulate.c        Wed Jan 09 10:11:31 2008 +0000
@@ -1064,6 +1064,9 @@ x86_emulate(
                     /* Special case in Grp3: test has immediate operand. */
                     ea.mem.off += (d & ByteOp) ? 1
                         : ((op_bytes == 8) ? 4 : op_bytes);
+                else if ( (b == 0xf7) == 0xa4 )
+                    /* SHLD/SHRD with immediate byte third operand. */
+                    ea.mem.off++;
                 break;
             case 1:
                 ea.mem.off += insn_fetch_type(int8_t);

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