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/usr/src/linux-headers-5.15.0-181/arch/s390/include/uapi/asm/

/usr/src/linux-headers-5.15.0-181/arch/s390/include/uapi/asm

Name	Size	Mode	Actions
auxvec.h	214	0644	edit dl rm
bitsperlong.h	293	0644	edit dl rm
bpf_perf_event.h	250	0644	edit dl rm
byteorder.h	188	0644	edit dl rm
chpid.h	456	0644	edit dl rm
chsc.h	2903	0644	edit dl rm
clp.h	549	0644	edit dl rm
cmb.h	1919	0644	edit dl rm
dasd.h	12658	0644	edit dl rm
guarded_storage.h	1208	0644	edit dl rm
hwctrset.h	1689	0644	edit dl rm
hypfs.h	1382	0644	edit dl rm
ioctls.h	191	0644	edit dl rm
ipcbuf.h	770	0644	edit dl rm
ipl.h	3297	0644	edit dl rm
Kbuild	90	0644	edit dl rm
kvm.h	8269	0644	edit dl rm
kvm_para.h	224	0644	edit dl rm
kvm_perf.h	474	0644	edit dl rm
monwriter.h	939	0644	edit dl rm
perf_regs.h	887	0644	edit dl rm
pkey.h	20741	0644	edit dl rm
posix_types.h	1594	0644	edit dl rm
ptrace.h	11719	0644	edit dl rm
qeth.h	3119	0644	edit dl rm
runtime_instr.h	1424	0644	edit dl rm
schid.h	380	0644	edit dl rm
sclp_ctl.h	465	0644	edit dl rm
setup.h	256	0644	edit dl rm
sie.h	9469	0644	edit dl rm
sigcontext.h	1772	0644	edit dl rm
signal.h	3056	0644	edit dl rm
stat.h	2966	0644	edit dl rm
statfs.h	1058	0644	edit dl rm
sthyi.h	178	0644	edit dl rm
tape390.h	2830	0644	edit dl rm
termios.h	1170	0644	edit dl rm
types.h	525	0644	edit dl rm
ucontext.h	1207	0644	edit dl rm
unistd.h	326	0644	edit dl rm
uvdevice.h	1668	0644	edit dl rm
virtio-ccw.h	444	0644	edit dl rm
vmcp.h	737	0644	edit dl rm
vtoc.h	7539	0644	edit dl rm
zcrypt.h	11426	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/arch/s390/include/uapi/asm/guarded_storage.h (1208B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _GUARDED_STORAGE_H
#define _GUARDED_STORAGE_H

#include <linux/types.h>

struct gs_cb {
	__u64 reserved;
	__u64 gsd;
	__u64 gssm;
	__u64 gs_epl_a;
};

struct gs_epl {
	__u8 pad1;
	union {
		__u8 gs_eam;
		struct {
			__u8	: 6;
			__u8 e	: 1;
			__u8 b	: 1;
		};
	};
	union {
		__u8 gs_eci;
		struct {
			__u8 tx	: 1;
			__u8 cx	: 1;
			__u8	: 5;
			__u8 in	: 1;
		};
	};
	union {
		__u8 gs_eai;
		struct {
			__u8	: 1;
			__u8 t	: 1;
			__u8 as	: 2;
			__u8 ar	: 4;
		};
	};
	__u32 pad2;
	__u64 gs_eha;
	__u64 gs_eia;
	__u64 gs_eoa;
	__u64 gs_eir;
	__u64 gs_era;
};

#define GS_ENABLE	0
#define	GS_DISABLE	1
#define GS_SET_BC_CB	2
#define GS_CLEAR_BC_CB	3
#define GS_BROADCAST	4

static inline void load_gs_cb(struct gs_cb *gs_cb)
{
	asm volatile(".insn rxy,0xe3000000004d,0,%0" : : "Q" (*gs_cb));
}

static inline void store_gs_cb(struct gs_cb *gs_cb)
{
	asm volatile(".insn rxy,0xe30000000049,0,%0" : : "Q" (*gs_cb));
}

static inline void save_gs_cb(struct gs_cb *gs_cb)
{
	if (gs_cb)
		store_gs_cb(gs_cb);
}

static inline void restore_gs_cb(struct gs_cb *gs_cb)
{
	if (gs_cb)
		load_gs_cb(gs_cb);
}

#endif /* _GUARDED_STORAGE_H */

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