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authorBorislav Petkov <bp@suse.de>2014-03-09 18:05:23 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2014-03-13 15:34:45 -0700
commit22085a66c2fab6cf9b9393c056a3600a6b4735de (patch)
tree3175ffd60c8d06bc2c719ee8a27442bb5a6aed7f /arch/x86/include
parent2a0788dc9bc46789ec98aea0f30c6fb420196b12 (diff)
x86: Add another set of MSR accessor functions
We very often need to set or clear a bit in an MSR as a result of doing some sort of a hardware configuration. Add generic versions of that repeated functionality in order to save us a bunch of duplicated code in the early CPU vendor detection/config code. Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1394384725-10796-2-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/msr.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index e139b13f2a33..de36f22eb0b9 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -214,6 +214,8 @@ do { \
struct msr *msrs_alloc(void);
void msrs_free(struct msr *msrs);
+int msr_set_bit(u32 msr, u8 bit);
+int msr_clear_bit(u32 msr, u8 bit);
#ifdef CONFIG_SMP
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);