ppc: bpf: implement jitting of JMP32

Browse source

This patch implements code-gen for new JMP32 instructions on ppc.

For JMP32 | JSET, instruction encoding for PPC_RLWINM_DOT is added to check
the result of ANDing low 32-bit of operands.

Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Jiong Wang 2019-01-26 12:26:10 -05:00 • committed by Alexei Starovoitov

parent b85062ac0d

commit 5f6459966d

3 changed files with 111 additions and 14 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

arch/powerpc/include/asm/ppc-opcode.h

View file

4

arch/powerpc/net/bpf_jit.h

View file

120

arch/powerpc/net/bpf_jit_comp64.c

View file