Fix push/pop usage in tools/ioemu for x86/64.

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

diff --git a/tools/ioemu/hw/vga.c b/tools/ioemu/hw/vga.c
index 11daaa27a23e8d20d8cf15ce8f2ca569c664bca8..c6fca32ae4d1f670ad4427003cab146791660def 100644 (file)
--- a/tools/ioemu/hw/vga.c
+++ b/tools/ioemu/hw/vga.c
@@ -1369,10 +1369,16 @@ static inline unsigned int cpuid_edx(unsigned int op)
 {
     unsigned int eax, edx;
 
-    __asm__("pushl %%ebx; cpuid; popl %%ebx"
+#ifdef __x86_64__
+#define __bx "rbx"
+#else
+#define __bx "ebx"
+#endif
+    __asm__("push %%"__bx"; cpuid; pop %%"__bx
             : "=a" (eax), "=d" (edx)
             : "0" (op)
             : "cx");
+#undef __ebx
 
     return edx;
 }