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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vmap_stack.h (739B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2// Copyright (C) 2017 Arm Ltd.
      3#ifndef __ASM_VMAP_STACK_H
      4#define __ASM_VMAP_STACK_H
      5
      6#include <linux/bug.h>
      7#include <linux/gfp.h>
      8#include <linux/kconfig.h>
      9#include <linux/vmalloc.h>
     10#include <linux/pgtable.h>
     11#include <asm/memory.h>
     12#include <asm/thread_info.h>
     13
     14/*
     15 * To ensure that VMAP'd stack overflow detection works correctly, all VMAP'd
     16 * stacks need to have the same alignment.
     17 */
     18static inline unsigned long *arch_alloc_vmap_stack(size_t stack_size, int node)
     19{
     20	void *p;
     21
     22	BUILD_BUG_ON(!IS_ENABLED(CONFIG_VMAP_STACK));
     23
     24	p = __vmalloc_node(stack_size, THREAD_ALIGN, THREADINFO_GFP, node,
     25			__builtin_return_address(0));
     26	return kasan_reset_tag(p);
     27}
     28
     29#endif /* __ASM_VMAP_STACK_H */