mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
7af192c954
This patch adds structs for the paravirt clocksource ABI used by both xen and kvm (pvclock-abi.h). It also adds some helper functions to read system time and wall clock time from a paravirtual clocksource (pvclock.[ch]). They are based on the xen code. They are enabled using CONFIG_PARAVIRT_CLOCK. Subsequent patches of this series will put the code in use. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
14 lines
417 B
C
14 lines
417 B
C
#ifndef _ASM_X86_PVCLOCK_H_
|
|
#define _ASM_X86_PVCLOCK_H_
|
|
|
|
#include <linux/clocksource.h>
|
|
#include <asm/pvclock-abi.h>
|
|
|
|
/* some helper functions for xen and kvm pv clock sources */
|
|
cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src);
|
|
void pvclock_read_wallclock(struct pvclock_wall_clock *wall,
|
|
struct pvclock_vcpu_time_info *vcpu,
|
|
struct timespec *ts);
|
|
|
|
#endif /* _ASM_X86_PVCLOCK_H_ */
|