AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-30 23:26:45 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

x86: Add IA32_TSC_AUX MSR and use it

Browse Source 
Clean up write_tsc() and write_tscp_aux() by replacing
hardcoded values.

No change in functionality.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
LKML-Reference: <1260942485-19156-4-git-send-email-sheng@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Sheng Yang 2009-12-16 13:48:04 +08:00 committed by Ingo Molnar
parent 0b962d473a
commit 5df974009f
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/include/asm/msr-index.h
View File

@ -12,6 +12,7 @@
#define MSR_FS_BASE 0xc0000100 /* 64bit FS base */ #define MSR_FS_BASE 0xc0000100 /* 64bit FS base */
#define MSR_GS_BASE 0xc0000101 /* 64bit GS base */ #define MSR_GS_BASE 0xc0000101 /* 64bit GS base */
#define MSR_KERNEL_GS_BASE 0xc0000102 /* SwapGS GS shadow */ #define MSR_KERNEL_GS_BASE 0xc0000102 /* SwapGS GS shadow */
#define MSR_TSC_AUX 0xc0000103 /* Auxiliary TSC */
/* EFER bits: */ /* EFER bits: */
#define _EFER_SCE 0 /* SYSCALL/SYSRET */ #define _EFER_SCE 0 /* SYSCALL/SYSRET */

4
arch/x86/include/asm/msr.h
View File

@ -240,9 +240,9 @@ do { \
#define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val), \ #define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val), \
(u32)((val) >> 32)) (u32)((val) >> 32))
#define write_tsc(val1, val2) wrmsr(0x10, (val1), (val2)) #define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
#define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0) #define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0)
struct msr *msrs_alloc(void); struct msr *msrs_alloc(void);
void msrs_free(struct msr *msrs); void msrs_free(struct msr *msrs);