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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vgetcpu.c (496B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright 2006 Andi Kleen, SUSE Labs.
      4 *
      5 * Fast user context implementation of getcpu()
      6 */
      7
      8#include <linux/kernel.h>
      9#include <linux/getcpu.h>
     10#include <linux/time.h>
     11#include <asm/vgtod.h>
     12
     13notrace long
     14__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
     15{
     16	vdso_read_cpunode(cpu, node);
     17
     18	return 0;
     19}
     20
     21long getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
     22	__attribute__((weak, alias("__vdso_getcpu")));