diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2022-10-10 12:03:31 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-10-10 12:03:43 +0300 |
| commit | dfd2d876b3fda1790bc0239ba4c6967e25d16e91 (patch) | |
| tree | 45c2ec4b25afdf7b521dec642f6b75112bb401a3 /arch/x86/include/asm/acrn.h | |
| parent | a790cc3a4fad75048295571a350b95b87e022a5a (diff) | |
| parent | 10d5ea5a436da8d60cdb5845f454d595accdbce0 (diff) | |
| download | linux-dfd2d876b3fda1790bc0239ba4c6967e25d16e91.tar.xz | |
Merge remote-tracking branch 'wireless/main' into wireless-next
Pull in wireless/main content since some new code would
otherwise conflict with it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'arch/x86/include/asm/acrn.h')
| -rw-r--r-- | arch/x86/include/asm/acrn.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acrn.h b/arch/x86/include/asm/acrn.h index e003a01b7c67..1dd14381bcb6 100644 --- a/arch/x86/include/asm/acrn.h +++ b/arch/x86/include/asm/acrn.h @@ -10,6 +10,15 @@ /* Bit 0 indicates whether guest VM is privileged */ #define ACRN_FEATURE_PRIVILEGED_VM BIT(0) +/* + * Timing Information. + * This leaf returns the current TSC frequency in kHz. + * + * EAX: (Virtual) TSC frequency in kHz. + * EBX, ECX, EDX: RESERVED (reserved fields are set to zero). + */ +#define ACRN_CPUID_TIMING_INFO 0x40000010 + void acrn_setup_intr_handler(void (*handler)(void)); void acrn_remove_intr_handler(void); @@ -21,6 +30,11 @@ static inline u32 acrn_cpuid_base(void) return 0; } +static inline unsigned long acrn_get_tsc_khz(void) +{ + return cpuid_eax(ACRN_CPUID_TIMING_INFO); +} + /* * Hypercalls for ACRN * |