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| author |  Julien Thierry <jthierry@redhat.com>
| 2021-03-03 18:05:29 +0100 |
|---|---|---|
| committer |  Will Deacon <will@kernel.org>
| 2021-05-27 17:37:25 +0100 |
| commit | 5f154c4e20d7edd38bddec78f3e0a7628057ef76 (patch) | |
| tree | 2e5fd4d618b2acd02946c265e07a6ee5fb3e4f4d /arch/arm64/include/asm/patching.h | |
| parent | Linux 5.13-rc3 (diff) | |
| download | linux-5f154c4e20d7edd38bddec78f3e0a7628057ef76.tar.gz linux-5f154c4e20d7edd38bddec78f3e0a7628057ef76.tar.bz2 linux-5f154c4e20d7edd38bddec78f3e0a7628057ef76.zip | |
arm64: Move patching utilities out of instruction encoding/decoding
Files insn.[c|h] containt some functions used for instruction patching.
In order to reuse the instruction encoder/decoder, move the patching
utilities to their own file.
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Link: https://lore.kernel.org/r/20210303170536.1838032-2-jthierry@redhat.com
[will: Include patching.h in insn.h to fix header mess; add __ASSEMBLY__ guards]
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/patching.h')
| -rw-r--r-- | arch/arm64/include/asm/patching.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/patching.h b/arch/arm64/include/asm/patching.h new file mode 100644 index 000000000000..5ebab129222f --- /dev/null +++ b/arch/arm64/include/asm/patching.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ASM_PATCHING_H +#define __ASM_PATCHING_H + +#include <linux/types.h> + +#ifndef __ASSEMBLY__ +int aarch64_insn_read(void *addr, u32 *insnp); +int aarch64_insn_write(void *addr, u32 insn); + +int aarch64_insn_patch_text_nosync(void *addr, u32 insn); +int aarch64_insn_patch_text(void *addrs[], u32 insns[], int cnt); +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_PATCHING_H */ |