Re: [PATCH v2 0/5] MIPS: Implement eBPF JIT.
On Tue, Jun 13, 2017 at 03:28:42PM -0700, David Daney wrote: > Changes in v2: > > - Squash a couple of the uasm cleanups. > > - Make insn_table_MM const (suggested by Matt Redfearn) > > - Put the eBPF in its own source file (should fix build > warnings/errors on 32-bit kernel builds). > > - Use bpf_jit_binary_alloc() (suggested by Daniel Borkmann) > > - Implement tail calls. > > - Fix system call tracing to extract arguments for > kprobe/__seccomp_filter() tracing (perhaps not really part the the > JIT, but necessary to have fun with the samples/bpf programs). > > Most things in samples/bpf work, still working on the incantations to > build tools/testing/selftests/bpf/ ... > > > >From v1: > > The first three patches improve MIPS uasm in preparation for use by > the JIT. Then the eBPF JIT implementation. > > I am CCing netdev@ and the BPF maintainers for their comments, but > would expect Ralf to merge via the MIPS tree if and when it all looks > good. Thanks, applied after fixing a minor conflict in arch/mips/Kconfig. Ralf
[PATCH v2 0/5] MIPS: Implement eBPF JIT.
Changes in v2: - Squash a couple of the uasm cleanups. - Make insn_table_MM const (suggested by Matt Redfearn) - Put the eBPF in its own source file (should fix build warnings/errors on 32-bit kernel builds). - Use bpf_jit_binary_alloc() (suggested by Daniel Borkmann) - Implement tail calls. - Fix system call tracing to extract arguments for kprobe/__seccomp_filter() tracing (perhaps not really part the the JIT, but necessary to have fun with the samples/bpf programs). Most things in samples/bpf work, still working on the incantations to build tools/testing/selftests/bpf/ ... >From v1: The first three patches improve MIPS uasm in preparation for use by the JIT. Then the eBPF JIT implementation. I am CCing netdev@ and the BPF maintainers for their comments, but would expect Ralf to merge via the MIPS tree if and when it all looks good. David Daney (5): MIPS: Optimize uasm insn lookup. MIPS: Correctly define DBSHFL type instruction opcodes. MIPS: Add some instructions to uasm. MIPS: Add support for eBPF JIT. MIPS: Give __secure_computing() access to syscall arguments. arch/mips/Kconfig | 12 +- arch/mips/include/asm/uasm.h | 30 + arch/mips/include/uapi/asm/inst.h |9 +- arch/mips/kernel/ptrace.c | 22 +- arch/mips/mm/uasm-micromips.c | 188 ++-- arch/mips/mm/uasm-mips.c | 238 ++--- arch/mips/mm/uasm.c | 61 +- arch/mips/net/Makefile|3 +- arch/mips/net/ebpf_jit.c | 1949 + 9 files changed, 2285 insertions(+), 227 deletions(-) create mode 100644 arch/mips/net/ebpf_jit.c -- 2.9.4
