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Re: [Xen-devel] [PATCH] x86/AMD: re-use function wide variables in init_amd()
Jan Beulich wrote:
Signed-off-by: Jan Beulich<jbeulich@xxxxxxxx>
Acked-by: Keir Fraser <keir@xxxxxxx>
--- a/xen/arch/x86/cpu/amd.c
+++ b/xen/arch/x86/cpu/amd.c
@@ -399,13 +399,9 @@ static void __devinit init_amd(struct cp
* revision D (model = 0x14) and later actually support it.
* (AMD Erratum #110, docId: 25759).
*/
- unsigned int lo, hi;
-
clear_bit(X86_FEATURE_LAHF_LM, c->x86_capability);
- if (!rdmsr_amd_safe(0xc001100d,&lo,&hi)) {
- hi&= ~1;
- wrmsr_amd_safe(0xc001100d, lo, hi);
- }
+ if (!rdmsr_amd_safe(0xc001100d,&l,&h))
+ wrmsr_amd_safe(0xc001100d, l, h& ~1);
}
switch(c->x86)
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