cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

vdso.h (1469B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * Copyright (C) 2015 Imagination Technologies
      4 * Author: Alex Smith <alex.smith@imgtec.com>
      5 */
      6
      7#ifndef __ASM_VDSO_H
      8#define __ASM_VDSO_H
      9
     10#include <linux/mm_types.h>
     11#include <vdso/datapage.h>
     12
     13#include <asm/barrier.h>
     14
     15/**
     16 * struct mips_vdso_image - Details of a VDSO image.
     17 * @data: Pointer to VDSO image data (page-aligned).
     18 * @size: Size of the VDSO image data (page-aligned).
     19 * @off_sigreturn: Offset of the sigreturn() trampoline.
     20 * @off_rt_sigreturn: Offset of the rt_sigreturn() trampoline.
     21 * @mapping: Special mapping structure.
     22 *
     23 * This structure contains details of a VDSO image, including the image data
     24 * and offsets of certain symbols required by the kernel. It is generated as
     25 * part of the VDSO build process, aside from the mapping page array, which is
     26 * populated at runtime.
     27 */
     28struct mips_vdso_image {
     29	void *data;
     30	unsigned long size;
     31
     32	unsigned long off_sigreturn;
     33	unsigned long off_rt_sigreturn;
     34
     35	struct vm_special_mapping mapping;
     36};
     37
     38/*
     39 * The following structures are auto-generated as part of the build for each
     40 * ABI by genvdso, see arch/mips/vdso/Makefile.
     41 */
     42
     43extern struct mips_vdso_image vdso_image;
     44
     45#ifdef CONFIG_MIPS32_O32
     46extern struct mips_vdso_image vdso_image_o32;
     47#endif
     48
     49#ifdef CONFIG_MIPS32_N32
     50extern struct mips_vdso_image vdso_image_n32;
     51#endif
     52
     53union mips_vdso_data {
     54	struct vdso_data data[CS_BASES];
     55	u8 page[PAGE_SIZE];
     56};
     57
     58#endif /* __ASM_VDSO_H */