linux_dsm_epyc7002/kernel/bpf
Daniel Borkmann e2c95a6165 bpf, ppc64: generalize fetching subprog into bpf_jit_get_func_addr
Make fetching of the BPF call address from ppc64 JIT generic. ppc64
was using a slightly different variant rather than through the insns'
imm field encoding as the target address would not fit into that space.
Therefore, the target subprog number was encoded into the insns' offset
and fetched through fp->aux->func[off]->bpf_func instead. Given there
are other JITs with this issue and the mechanism of fetching the address
is JIT-generic, move it into the core as a helper instead. On the JIT
side, we get information on whether the retrieved address is a fixed
one, that is, not changing through JIT passes, or a dynamic one. For
the former, JITs can optimize their imm emission because this doesn't
change jump offsets throughout JIT process.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Sandipan Das <sandipan@linux.ibm.com>
Tested-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-26 17:34:24 -08:00
..
arraymap.c bpf: return EOPNOTSUPP when map lookup isn't supported 2018-10-09 21:52:20 -07:00
bpf_lru_list.c
bpf_lru_list.h
btf.c bpf, btf: fix a missing check bug in btf_parse 2018-10-26 00:42:03 +02:00
cgroup.c bpf: add cg_skb_is_valid_access for BPF_PROG_TYPE_CGROUP_SKB 2018-10-19 13:49:34 -07:00
core.c bpf, ppc64: generalize fetching subprog into bpf_jit_get_func_addr 2018-11-26 17:34:24 -08:00
cpumap.c bpf: fix redirect to map under tail calls 2018-08-17 15:56:23 -07:00
devmap.c bpf: devmap: fix wrong interface selection in notifier_call 2018-10-26 00:32:21 +02:00
disasm.c
disasm.h
hashtab.c bpf: add bpffs pretty print for percpu arraymap/hash/lru_hash 2018-08-30 14:03:53 +02:00
helpers.c bpf: fix direct packet write into pop/peek helpers 2018-10-25 17:02:06 -07:00
inode.c bpf: decouple btf from seq bpf fs dump and enable more maps 2018-08-13 00:52:45 +02:00
local_storage.c bpf: allocate local storage buffers using GFP_ATOMIC 2018-11-16 21:17:49 -08:00
lpm_trie.c bpf: decouple btf from seq bpf fs dump and enable more maps 2018-08-13 00:52:45 +02:00
Makefile bpf: add queue and stack maps 2018-10-19 13:24:31 -07:00
map_in_map.c bpf: don't allow create maps of per-cpu cgroup local storages 2018-10-01 16:18:33 +02:00
map_in_map.h
offload.c bpf: add verifier callback to get stack usage info for offloaded progs 2018-10-08 10:24:12 +02:00
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c bpf: fix integer overflow in queue_stack_map 2018-11-22 21:29:40 +01:00
reuseport_array.c
stackmap.c bpf: rename stack trace map operations 2018-10-19 13:24:30 -07:00
syscall.c bpf: fix bpf_prog_get_info_by_fd to return 0 func_lens for unpriv 2018-11-02 13:51:15 -07:00
tnum.c
verifier.c bpf: fix off-by-one error in adjust_subprog_starts 2018-11-16 21:10:00 -08:00
xskmap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-19 11:03:06 -07:00