x86_emulate: Near JMP (Grp5 /3) shoudl not write back to its operand.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

diff --git a/xen/arch/x86/x86_emulate.c b/xen/arch/x86/x86_emulate.c
index 5f119597ed177da2e83320fc15ee2e1fc075b7a6..75e1232008997bc28def308c0c6bc6339b0914b4 100644 (file)
--- a/xen/arch/x86/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate.c
@@ -1581,6 +1581,7 @@ x86_emulate(
             _regs.eip = dst.val;
             if ( (modrm_reg & 7) == 2 )
                 goto push; /* call */
+            dst.type = OP_NONE;
             break;
         case 6: /* push */
             /* 64-bit mode: PUSH defaults to a 64-bit operand. */