processor.h (996B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * s390x processor specific defines 4 */ 5#ifndef SELFTEST_KVM_PROCESSOR_H 6#define SELFTEST_KVM_PROCESSOR_H 7 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/* Is there a portable way to do this? */ 25static inline void cpu_relax(void) 26{ 27 barrier(); 28} 29 30#endif