From 7d8050b5142c5b9132be25835a3d7f261f1411a6 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Wed, 12 Jul 2017 13:20:57 -0300 Subject: [PATCH] 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 Message-Id: <20170712162058.10538-4-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost --- target/i386/cpu.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 156dc955d2..8558c600bf 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -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;