Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _ASM_X86_PVCLOCK_ABI_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _ASM_X86_PVCLOCK_ABI_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #ifndef __ASSEMBLY__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * These structs MUST NOT be changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * They are the ABI between hypervisor and guest OS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * Both Xen and KVM are using this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * pvclock_vcpu_time_info holds the system time and the tsc timestamp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * of the last update. So the guest can use the tsc delta to get a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * more precise system time.  There is one per virtual cpu.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * pvclock_wall_clock references the point in time when the system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * time was zero (usually boot time), thus the guest calculates the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * current wall clock by adding the system time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * Protocol for the "version" fields is: hypervisor raises it (making
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * it uneven) before it starts updating the fields and raises it again
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * (making it even) when it is done.  Thus the guest can make sure the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * time values it got are consistent by checking the version before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * and after reading them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct pvclock_vcpu_time_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	u32   version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	u32   pad0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	u64   tsc_timestamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	u64   system_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	u32   tsc_to_system_mul;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	s8    tsc_shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	u8    flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	u8    pad[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) } __attribute__((__packed__)); /* 32 bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct pvclock_wall_clock {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	u32   version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	u32   sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	u32   nsec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) } __attribute__((__packed__));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define PVCLOCK_TSC_STABLE_BIT	(1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define PVCLOCK_GUEST_STOPPED	(1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* PVCLOCK_COUNTS_FROM_ZERO broke ABI and can't be used anymore. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define PVCLOCK_COUNTS_FROM_ZERO (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #endif /* __ASSEMBLY__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #endif /* _ASM_X86_PVCLOCK_ABI_H */