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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * s390x processor specific defines4 */5#ifndef SELFTEST_KVM_PROCESSOR_H6#define SELFTEST_KVM_PROCESSOR_H7 8#include <linux/compiler.h>9 10/* Bits in the region/segment table entry */11#define REGION_ENTRY_ORIGIN ~0xfffUL /* region/segment table origin */12#define REGION_ENTRY_PROTECT 0x200 /* region protection bit */13#define REGION_ENTRY_NOEXEC 0x100 /* region no-execute bit */14#define REGION_ENTRY_OFFSET 0xc0 /* region table offset */15#define REGION_ENTRY_INVALID 0x20 /* invalid region table entry */16#define REGION_ENTRY_TYPE 0x0c /* region/segment table type mask */17#define REGION_ENTRY_LENGTH 0x03 /* region third length */18 19/* Bits in the page table entry */20#define PAGE_INVALID 0x400 /* HW invalid bit */21#define PAGE_PROTECT 0x200 /* HW read-only bit */22#define PAGE_NOEXEC 0x100 /* HW no-execute bit */23 24/* Page size definitions */25#define PAGE_SHIFT 1226#define PAGE_SIZE BIT_ULL(PAGE_SHIFT)27#define PAGE_MASK (~(PAGE_SIZE - 1))28 29/* Is there a portable way to do this? */30static inline void cpu_relax(void)31{32 barrier();33}34 35#endif36