1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * vsyscall_emu_64.S: Vsyscall emulation page 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (c) 2011 Andy Lutomirski 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun#include <linux/linkage.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun#include <asm/irq_vectors.h> 11*4882a593Smuzhiyun#include <asm/page_types.h> 12*4882a593Smuzhiyun#include <asm/unistd_64.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun__PAGE_ALIGNED_DATA 15*4882a593Smuzhiyun .globl __vsyscall_page 16*4882a593Smuzhiyun .balign PAGE_SIZE, 0xcc 17*4882a593Smuzhiyun .type __vsyscall_page, @object 18*4882a593Smuzhiyun__vsyscall_page: 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun mov $__NR_gettimeofday, %rax 21*4882a593Smuzhiyun syscall 22*4882a593Smuzhiyun ret 23*4882a593Smuzhiyun int3 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun .balign 1024, 0xcc 26*4882a593Smuzhiyun mov $__NR_time, %rax 27*4882a593Smuzhiyun syscall 28*4882a593Smuzhiyun ret 29*4882a593Smuzhiyun int3 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun .balign 1024, 0xcc 32*4882a593Smuzhiyun mov $__NR_getcpu, %rax 33*4882a593Smuzhiyun syscall 34*4882a593Smuzhiyun ret 35*4882a593Smuzhiyun int3 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun .balign 4096, 0xcc 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun .size __vsyscall_page, 4096 40