diff options
| author |   Puranjay Mohan <puranjay12@gmail.com> | 2023-08-31 13:12:28 +0000 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@rivosinc.com> | 2023-09-06 06:26:06 -0700 |
| commit | cad539baa48ff257b598000a90db2b7edd4b2dd5 (patch) | |
| tree | eee232a8bf720d79d5c2a19e76df01658e593658 /arch/riscv/net/bpf_jit_comp64.c | |
| parent | riscv: extend patch_text_nosync() for multiple pages (diff) | |
| download | wireguard-linux-cad539baa48ff257b598000a90db2b7edd4b2dd5.tar.xz wireguard-linux-cad539baa48ff257b598000a90db2b7edd4b2dd5.zip | |
riscv: implement a memset like function for text
The BPF JIT needs to write invalid instructions to RX regions of memory to
invalidate removed BPF programs. This needs a function like memset() that
can work with RX memory.
Implement patch_text_set_nosync() which is similar to text_poke_set() of
x86.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Reviewed-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20230831131229.497941-4-puranjay12@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/net/bpf_jit_comp64.c')
0 files changed, 0 insertions, 0 deletions