arch/arm64/include/asm/mem_encrypt.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef __ASM_MEM_ENCRYPT_H
   3 #define __ASM_MEM_ENCRYPT_H
   4
   5 #include <asm/rsi.h>
   6
   7 struct arm64_mem_crypt_ops {
   8         int (*encrypt)(unsigned long addr, int numpages);
   9         int (*decrypt)(unsigned long addr, int numpages);
  10 };
  11
  12 int arm64_mem_crypt_ops_register(const struct arm64_mem_crypt_ops *ops);
  13
  14 int set_memory_encrypted(unsigned long addr, int numpages);
  15 int set_memory_decrypted(unsigned long addr, int numpages);
  16
  17 int realm_register_memory_enc_ops(void);
  18
  19 static inline bool force_dma_unencrypted(struct device *dev)
  20 {
  21         return is_realm_world();
  22 }
  23
  24 #endif  /* __ASM_MEM_ENCRYPT_H */