cregit-Linux how code gets into the kernel

Release 4.15 arch/s390/include/asm/runtime_instr.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _RUNTIME_INSTR_H

#define _RUNTIME_INSTR_H


#define S390_RUNTIME_INSTR_START	0x1

#define S390_RUNTIME_INSTR_STOP		0x2


struct runtime_instr_cb {
	
__u64 rca;
	
__u64 roa;
	
__u64 rla;

	
__u32 v			: 1;
	
__u32 s			: 1;
	
__u32 k			: 1;
	
__u32 h			: 1;
	
__u32 a			: 1;
	
__u32 reserved1		: 3;
	
__u32 ps		: 1;
	
__u32 qs		: 1;
	
__u32 pc		: 1;
	
__u32 qc		: 1;
	
__u32 reserved2		: 1;
	
__u32 g			: 1;
	
__u32 u			: 1;
	
__u32 l			: 1;
	
__u32 key		: 4;
	
__u32 reserved3		: 8;
	
__u32 t			: 1;
	
__u32 rgs		: 3;

	
__u32 m			: 4;
	
__u32 n			: 1;
	
__u32 mae		: 1;
	
__u32 reserved4		: 2;
	
__u32 c			: 1;
	
__u32 r			: 1;
	
__u32 b			: 1;
	
__u32 j			: 1;
	
__u32 e			: 1;
	
__u32 x			: 1;
	
__u32 reserved5		: 2;
	
__u32 bpxn		: 1;
	
__u32 bpxt		: 1;
	
__u32 bpti		: 1;
	
__u32 bpni		: 1;
	
__u32 reserved6		: 2;

	
__u32 d			: 1;
	
__u32 f			: 1;
	
__u32 ic		: 4;
	
__u32 dc		: 4;

	
__u64 reserved7;
	
__u64 sf;
	
__u64 rsic;
	
__u64 reserved8;
} __packed __aligned(8);

extern struct runtime_instr_cb runtime_instr_empty_cb;


static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb) { asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */ : : "Q" (*cb)); }

Contributors

PersonTokensPropCommitsCommitProp
Jan Glauber17100.00%1100.00%
Total17100.00%1100.00%


static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb) { asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */ : "=Q" (*cb) : : "cc"); }

Contributors

PersonTokensPropCommitsCommitProp
Jan Glauber17100.00%1100.00%
Total17100.00%1100.00%


static inline void save_ri_cb(struct runtime_instr_cb *cb_prev) { if (cb_prev) store_runtime_instr_cb(cb_prev); }

Contributors

PersonTokensPropCommitsCommitProp
Jan Glauber21100.00%1100.00%
Total21100.00%1100.00%


static inline void restore_ri_cb(struct runtime_instr_cb *cb_next, struct runtime_instr_cb *cb_prev) { if (cb_next) load_runtime_instr_cb(cb_next); else if (cb_prev) load_runtime_instr_cb(&runtime_instr_empty_cb); }

Contributors

PersonTokensPropCommitsCommitProp
Jan Glauber37100.00%1100.00%
Total37100.00%1100.00%

struct task_struct; void runtime_instr_release(struct task_struct *tsk); #endif /* _RUNTIME_INSTR_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Jan Glauber28381.32%125.00%
Alice Frosi5616.09%125.00%
Heiko Carstens82.30%125.00%
Greg Kroah-Hartman10.29%125.00%
Total348100.00%4100.00%
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