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Johan Almbladh 72570224bb mips, bpf: Add JIT workarounds for CPU errata 
This patch adds workarounds for the following CPU errata to the MIPS
eBPF JIT, if enabled in the kernel configuration.

  - R10000 ll/sc weak ordering
  - Loongson-3 ll/sc weak ordering
  - Loongson-2F jump hang

The Loongson-2F nop errata is implemented in uasm, which the JIT uses,
so no additional mitigations are needed for that.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://lore.kernel.org/bpf/20211005165408.2305108-6-johan.almbladh@anyfinetworks.com
2021-10-06 12:28:25 -07:00
..
alpha fix up for "net: add new socket option SO_RESERVE_MEM" 2021-10-01 15:00:21 +01:00
arc Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
arm entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
arm64 x86: 2021-09-27 13:58:23 -07:00
csky entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
h8300 Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
hexagon Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
ia64 Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
m68k arch: use eth_hw_addr_set() 2021-10-02 14:18:25 +01:00
microblaze Microblaze patches for 5.15-rc1 2021-09-08 16:02:13 -07:00
mips mips, bpf: Add JIT workarounds for CPU errata 2021-10-06 12:28:25 -07:00
nds32 nds32/setup: remove unused memblock_region variable in setup_memory() 2021-09-08 18:45:53 -07:00
nios2 NIOS2: setup.c: drop unused variable 'dram_start' 2021-09-27 08:34:54 -05:00
openrisc Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
parisc fix up for "net: add new socket option SO_RESERVE_MEM" 2021-10-01 15:00:21 +01:00
powerpc entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
riscv Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version) 2021-09-13 10:43:04 -07:00
s390 x86: 2021-09-27 13:58:23 -07:00
sh sh: pgtable-3level: fix cast to pointer from integer of different size 2021-09-24 16:13:35 -07:00
sparc sparc: Fix typo. 2021-10-05 11:34:17 +01:00
um This pull request contains the following changes for UML: 2021-09-09 13:45:26 -07:00
x86 bpf, x64: Save bytes for DIV by reducing reg copies 2021-10-06 15:24:36 +02:00
xtensa arch: use eth_hw_addr_set() 2021-10-02 14:18:25 +01:00
.gitignore
Kconfig Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00