linux/kernel/bpf
Puranjay Mohan 5c5240d020 bpf: Report arena faults to BPF stderr
Begin reporting arena page faults and the faulting address to BPF
program's stderr, this patch adds support in the arm64 and x86-64 JITs,
support for other archs can be added later.

The fault handlers receive the 32 bit address in the arena region so
the upper 32 bits of user_vm_start is added to it before printing the
address. This is what the user would expect to see as this is what is
printed by bpf_printk() is you pass it an address returned by
bpf_arena_alloc_pages();

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20250911145808.58042-4-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-09-11 13:00:43 -07:00
..
preload umd: Remove usermode driver framework 2025-07-26 21:03:04 +02:00
arena.c bpf: Report arena faults to BPF stderr 2025-09-11 13:00:43 -07:00
arraymap.c bpf: add btf_type_is_i{32,64} helpers 2025-06-25 15:15:49 -07:00
bloom_filter.c
bpf_cgrp_storage.c bpf: use rcu_read_lock_dont_migrate() for bpf_cgrp_storage_free() 2025-08-25 18:52:16 -07:00
bpf_inode_storage.c bpf: use rcu_read_lock_dont_migrate() for bpf_inode_storage_free() 2025-08-25 18:52:16 -07:00
bpf_iter.c bpf: use rcu_read_lock_dont_migrate() for bpf_iter_run_prog() 2025-08-25 18:52:16 -07:00
bpf_local_storage.c bpf: add btf_type_is_i{32,64} helpers 2025-06-25 15:15:49 -07:00
bpf_lru_list.c bpf: Replace get_next_cpu() with cpumask_next_wrap() 2025-08-18 15:11:02 +02:00
bpf_lru_list.h bpf: Adjust free target to avoid global starvation of LRU map 2025-06-18 18:50:14 -07:00
bpf_lsm.c bpf: lsm: Add two more sleepable hooks 2025-02-13 19:35:31 -08:00
bpf_struct_ops.c bpf: Allow struct_ops to get map id by kdata 2025-08-06 13:39:58 -07:00
bpf_task_storage.c bpf: use rcu_read_lock_dont_migrate() for bpf_task_storage_free() 2025-08-25 18:52:16 -07:00
btf_iter.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
btf_relocate.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
btf.c bpf-next-6.17 2025-07-30 09:58:50 -07:00
cgroup_iter.c
cgroup.c bpf: WQ_PERCPU added to alloc_workqueue users 2025-09-08 10:04:37 -07:00
core.c bpf: core: introduce main_prog_aux for stream access 2025-09-11 13:00:43 -07:00
cpumap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc5 2025-09-11 09:34:37 -07:00
cpumask.c bpf: fix missing kdoc string fields in cpumask.c 2025-03-15 11:48:57 -07:00
crypto.c bpf: Fix out-of-bounds dynptr write in bpf_crypto_crypt 2025-09-09 15:07:57 -07:00
devmap.c bpf: Remove redundant __GFP_NOWARN 2025-08-12 14:56:04 -07:00
disasm.c bpftool: Using the right format specifiers 2025-03-17 13:50:56 -07:00
disasm.h
dispatcher.c bpf: Add kernel symbol for struct_ops trampoline 2024-11-12 17:13:46 -08:00
dmabuf_iter.c bpf: Add open coded dmabuf iterator 2025-05-27 09:51:25 -07:00
hashtab.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc4 2025-04-28 08:40:45 -07:00
helpers.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc5 2025-09-11 09:34:37 -07:00
inode.c VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
Kconfig
kmem_cache_iter.c bpf: Add open coded version of kmem_cache iterator 2024-11-01 11:08:32 -07:00
link_iter.c bpf: Clean up individual BTF_ID code 2025-07-16 18:34:42 -07:00
local_storage.c bpf: Remove redundant __GFP_NOWARN 2025-08-12 14:56:04 -07:00
log.c bpf: Add dynptr type for skb metadata 2025-08-18 10:29:42 -07:00
lpm_trie.c bpf: Convert lpm_trie.c to rqspinlock 2025-03-19 08:03:05 -07:00
Makefile rqspinlock: Choose trylock fallback for NMI waiters 2025-09-09 15:10:28 -07:00
map_in_map.c bpf: switch maps to CLASS(fd, ...) 2024-08-13 15:58:17 -07:00
map_in_map.h
map_iter.c
memalloc.c bpf: replace use of system_unbound_wq with system_dfl_wq 2025-09-08 10:04:37 -07:00
mmap_unlock_work.h
mprog.c
net_namespace.c bpf: Remove attach_type in bpf_netns_link 2025-07-11 11:01:04 -07:00
offload.c net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
percpu_freelist.c bpf: Convert percpu_freelist.c to rqspinlock 2025-03-19 08:03:05 -07:00
percpu_freelist.h bpf: Convert percpu_freelist.c to rqspinlock 2025-03-19 08:03:05 -07:00
prog_iter.c bpf: Clean up individual BTF_ID code 2025-07-16 18:34:42 -07:00
queue_stack_maps.c bpf: Convert queue_stack map to rqspinlock 2025-04-10 12:51:10 -07:00
range_tree.c bpf: Disable migration before calling ops->map_free() 2025-01-08 18:06:36 -08:00
range_tree.h bpf: Introduce range_tree data structure and use it in bpf arena 2024-11-13 13:52:45 -08:00
relo_core.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
reuseport_array.c bpf: Use sockfd_put() helper 2024-08-30 08:57:47 -07:00
ringbuf.c bpf: Convert ringbuf map to rqspinlock 2025-04-11 10:28:26 -07:00
rqspinlock.c rqspinlock: Choose trylock fallback for NMI waiters 2025-09-09 15:10:28 -07:00
rqspinlock.h rqspinlock: Protect waiters in queue from stalls 2025-03-19 08:03:05 -07:00
stackmap.c bpf: wire up sleepable bpf_get_stack() and bpf_get_task_stack() helpers 2024-09-11 09:58:31 -07:00
stream.c bpf: Fix improper int-to-ptr cast in dump_stack_cb 2025-07-07 08:30:15 -07:00
syscall.c bpf: replace use of system_unbound_wq with system_dfl_wq 2025-09-08 10:04:37 -07:00
sysfs_btf.c Driver core changes for 6.17-rc1 2025-07-29 12:15:39 -07:00
task_iter.c vfs-6.13.file 2024-11-18 10:30:29 -08:00
tcx.c bpf: Remove location field in tcx_link 2025-07-11 11:00:57 -07:00
tnum.c bpf: Improve the general precision of tnum_mul 2025-08-27 15:00:26 -07:00
token.c bpf: Add struct bpf_token_info 2025-07-16 18:38:05 -07:00
trampoline.c bpf: use rcu_read_lock_dont_migrate() for trampoline.c 2025-08-25 18:52:16 -07:00
verifier.c bpf: core: introduce main_prog_aux for stream access 2025-09-11 13:00:43 -07:00