CLFLUSH cpuid fix (aka Linux 2.6 hang on x86_64)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1539 c046a42c-6fe2-441c-8c8c-71466251a162

target-i386/helper.c

@@ -1307,7 +1307,7 @@ void helper_cpuid(void)
         break;
     case 1:
         EAX = env->cpuid_version;
-        EBX = 0;
+        EBX = 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
         ECX = env->cpuid_ext_features;
         EDX = env->cpuid_features;
         break;