diff options
| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2019-06-12 20:51:40 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-06-13 23:07:00 +0200 |
| commit | 758f2046ea040773ae8ea7f72dd3bbd8fa984501 (patch) | |
| tree | 5bc7151508fe910ab38e5ec09a74545abfc63f3a /arch/powerpc/include/asm/ppc-opcode.h | |
| parent | bpf: fix div64 overflow tests to properly detect errors (diff) | |
| download | linux-758f2046ea040773ae8ea7f72dd3bbd8fa984501.tar.xz linux-758f2046ea040773ae8ea7f72dd3bbd8fa984501.zip | |
powerpc/bpf: use unsigned division instruction for 64-bit operations
BPF_ALU64 div/mod operations are currently using signed division, unlike
BPF_ALU32 operations. Fix the same. DIV64 and MOD64 overflow tests pass
with this fix.
Fixes: 156d0e290e969c ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'arch/powerpc/include/asm/ppc-opcode.h')
| -rw-r--r-- | arch/powerpc/include/asm/ppc-opcode.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 493c5c943acd..2291daf39cd1 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -338,6 +338,7 @@ #define PPC_INST_MADDLD 0x10000033 #define PPC_INST_DIVWU 0x7c000396 #define PPC_INST_DIVD 0x7c0003d2 +#define PPC_INST_DIVDU 0x7c000392 #define PPC_INST_RLWINM 0x54000000 #define PPC_INST_RLWINM_DOT 0x54000001 #define PPC_INST_RLWIMI 0x50000000 |