Re: [Qemu-devel] [PATCH uq/master V2] kvm: Add CPUID support for VIA CPU

[Jan Kiszka]

On 2011-05-31 03:25, BrillyWu wrote:
> Hi, Jan
> 
>> patch which has
>>> been checked. It can be compiled without any error and work
>> normally.
>>>         The patch v3 is here now.
>>
>> The above text can't be used as a commit log, so this needs to be
>> fixed.
>> Moreover, your patch still contains at least on style issues
>> scripts/checkpatch.pl should have caught. Are you sure you ran it?
>>
> 
> I am sure I have checked it with the scripts/checkpatch.pl, and it
> shows no error or warning. Maybe I should check whether my windows
> editor and  mail client can work well before sending it to you. I 'm
> sorry.

Sorry, you are right. Your patch revealed a bug in the checkpatch script.

Blue, this does not trigger the missing braces warning:

@@ -1035,8 +1052,17 @@ void cpu_x86_cpuid(CPUX86State *env, uin
 {
     /* test if maximum index reached */
     if (index & 0x80000000) {
-        if (index > env->cpuid_xlevel)
-            index = env->cpuid_level;
+        if (index > env->cpuid_xlevel) {
+            if (env->cpuid_xlevel2 > 0) {
+                /* Handle the Centaur's CPUID instruction. */
+                if (index > env->cpuid_xlevel2) {
+                    index = env->cpuid_xlevel2;
+                } else if (index < 0xC0000000) {
+                    index = env->cpuid_xlevel;
+                }
+            } else
+                index =  env->cpuid_xlevel;
+        }
     } else {
         if (index > env->cpuid_level)
             index = env->cpuid_level;


> OK, I will use the previous commit log, and send it to you in the new thread.

Thanks. I think it would be fair to fix up the braces on commit now.

Jan

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