cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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vsyscall_emu_64.S (582B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * vsyscall_emu_64.S: Vsyscall emulation page
      4 *
      5 * Copyright (c) 2011 Andy Lutomirski
      6 */
      7
      8#include <linux/linkage.h>
      9
     10#include <asm/irq_vectors.h>
     11#include <asm/page_types.h>
     12#include <asm/unistd_64.h>
     13
     14__PAGE_ALIGNED_DATA
     15	.globl __vsyscall_page
     16	.balign PAGE_SIZE, 0xcc
     17	.type __vsyscall_page, @object
     18__vsyscall_page:
     19
     20	mov $__NR_gettimeofday, %rax
     21	syscall
     22	RET
     23
     24	.balign 1024, 0xcc
     25	mov $__NR_time, %rax
     26	syscall
     27	RET
     28
     29	.balign 1024, 0xcc
     30	mov $__NR_getcpu, %rax
     31	syscall
     32	RET
     33
     34	.balign 4096, 0xcc
     35
     36	.size __vsyscall_page, 4096