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[Qemu-devel] [PATCH 3/4] target-i386: Introduce x86_cpuid_version_set_st
From: |
Andreas Färber |
Subject: |
[Qemu-devel] [PATCH 3/4] target-i386: Introduce x86_cpuid_version_set_stepping() |
Date: |
Fri, 17 Feb 2012 17:46:03 +0100 |
Move the logic for setting the stepping field into a helper function.
To make the function self-contained and to prepare for future
unordered/multiple uses, mask out any previous stepping values first.
Signed-off-by: Andreas Färber <address@hidden>
---
target-i386/cpuid.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
index e76a31b..7a99fcd 100644
--- a/target-i386/cpuid.c
+++ b/target-i386/cpuid.c
@@ -613,6 +613,12 @@ static void x86_cpuid_version_set_model(CPUX86State *env,
int model)
env->cpuid_version |= ((model & 0xf) << 4) | ((model >> 4) << 16);
}
+static void x86_cpuid_version_set_stepping(CPUX86State *env, int stepping)
+{
+ env->cpuid_version &= ~0xf;
+ env->cpuid_version |= stepping & 0xf;
+}
+
static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
{
unsigned int i;
@@ -901,7 +907,7 @@ int cpu_x86_register (CPUX86State *env, const char
*cpu_model)
env->cpuid_level = def->level;
x86_cpuid_version_set_family(env, def->family);
x86_cpuid_version_set_model(env, def->model);
- env->cpuid_version |= def->stepping;
+ x86_cpuid_version_set_stepping(env, def->stepping);
env->cpuid_features = def->features;
env->cpuid_ext_features = def->ext_features;
env->cpuid_ext2_features = def->ext2_features;
--
1.7.7