Linux-6.18.2/arch/s390/include/asm/skey.h
2025-12-23 20:06:59 +08:00

33 lines
725 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SKEY_H
#define __ASM_SKEY_H
#include <asm/rwonce.h>
struct skey_region {
unsigned long start;
unsigned long end;
};
#define SKEY_REGION(_start, _end) \
stringify_in_c(.section .skey_region,"a";) \
stringify_in_c(.balign 8;) \
stringify_in_c(.quad (_start);) \
stringify_in_c(.quad (_end);) \
stringify_in_c(.previous)
extern int skey_regions_initialized;
extern struct skey_region __skey_region_start[];
extern struct skey_region __skey_region_end[];
void __skey_regions_initialize(void);
static inline void skey_regions_initialize(void)
{
if (READ_ONCE(skey_regions_initialized))
return;
__skey_regions_initialize();
}
#endif /* __ASM_SKEY_H */