Re: [Qemu-devel] vmmouse with Fedora-6 64bit guest

[Dan Kenigsberg]

In X's vmmouse_drv, the magic number is defined as uint32_t. Therefore
the top half of the 64 bit ax register is garbage that should be
ignored. This makes fc6 guest's vmmouse work.


Index: hw/vmport.c
===================================================================
RCS file: /sources/qemu/qemu/hw/vmport.c,v
retrieving revision 1.1
diff -u -p -r1.1 vmport.c
--- hw/vmport.c 26 Aug 2007 17:48:12 -0000      1.1
+++ hw/vmport.c 8 Oct 2007 13:11:45 -0000
@@ -55,7 +55,7 @@ static uint32_t vmport_ioport_read(void 
     target_ulong eax;
 
     eax = s->env->regs[R_EAX];
-    if (eax != VMPORT_MAGIC)
+    if ((uint32_t)eax != VMPORT_MAGIC)
         return eax;
 
     command = s->env->regs[R_ECX];