1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2
3 #ifndef _ASM_RISCV_KFENCE_H
4 #define _ASM_RISCV_KFENCE_H
5
6 #include <linux/kfence.h>
7 #include <linux/pfn.h>
8 #include <asm-generic/pgalloc.h>
9 #include <asm/pgtable.h>
10
11 static inline bool arch_kfence_init_pool(void)
12 {
13 return true;
14 }
15
16 static inline bool kfence_protect_page(unsigne
17 {
18 pte_t *pte = virt_to_kpte(addr);
19
20 if (protect)
21 set_pte(pte, __pte(pte_val(pte
22 else
23 set_pte(pte, __pte(pte_val(pte
24
25 flush_tlb_kernel_range(addr, addr + PA
26
27 return true;
28 }
29
30 #endif /* _ASM_RISCV_KFENCE_H */
31
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