blob: e95e35eb8a3f077458168c749b7ab4d247093384 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390_KFENCE_H
#define _ASM_S390_KFENCE_H
#include <linux/mm.h>
#include <linux/kfence.h>
#include <asm/set_memory.h>
#include <asm/page.h>
void __kernel_map_pages(struct page *page, int numpages, int enable);
static __always_inline bool arch_kfence_init_pool(void)
{
#ifdef CONFIG_KFENCE
unsigned long pool_pages = KFENCE_POOL_SIZE >> PAGE_SHIFT;
set_memory_4k((unsigned long)__kfence_pool, pool_pages);
#endif
return true;
}
#define arch_kfence_test_address(addr) ((addr) & PAGE_MASK)
static inline bool kfence_protect_page(unsigned long addr, bool protect)
{
__kernel_map_pages(virt_to_page((void *)addr), 1, !protect);
return true;
}
#endif /* _ASM_S390_KFENCE_H */
|
