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target/i386: Define CPUID_MODEL_ID_SZ macro 

Document cpu_x86_fill_model_id() and define CPUID_MODEL_ID_SZ to
help callers use the right buffer size.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170712162058.10538-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
master
Eduardo Habkost 2017-07-12 13:20:57 -03:00
parent bfef624895
commit 7d8050b514
1 changed files with 11 additions and 0 deletions
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11
target/i386/cpu.c
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@ -1585,6 +1585,17 @@ static bool lmce_supported(void)
return !!(mce_cap & MCG_LMCE_P);
}
#define CPUID_MODEL_ID_SZ 48
/**
* cpu_x86_fill_model_id:
* Get CPUID model ID string from host CPU.
*
* @str should have at least CPUID_MODEL_ID_SZ bytes
*
* The function does NOT add a null terminator to the string
* automatically.
*/
static int cpu_x86_fill_model_id(char *str)
{
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;