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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-09 08:12:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-09 08:12:09 +0200 |
| commit | 73e19de7b79a2f26f0b370cc071728cede1ab3a0 (patch) | |
| tree | 28fe55f0fa10e2ee4d30304b378c68288bf92d88 /include/linux/filter.h | |
| parent | 548011957d1d72e0b662300c8b32b81d593b796e (diff) | |
| parent | 36a21d51725af2ce0700c6ebcb6b9594aac658a6 (diff) | |
Merge 5.14-rc5 into usb-next
We need the usb fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/filter.h')
| -rw-r--r-- | include/linux/filter.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index 472f97074da0..83b896044e79 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -73,6 +73,11 @@ struct ctl_table_header; /* unused opcode to mark call to interpreter with arguments */ #define BPF_CALL_ARGS 0xe0 +/* unused opcode to mark speculation barrier for mitigating + * Speculative Store Bypass + */ +#define BPF_NOSPEC 0xc0 + /* As per nm, we expose JITed images as text (code) section for * kallsyms. That way, tools like perf can find it to match * addresses. @@ -390,6 +395,16 @@ static inline bool insn_is_zext(const struct bpf_insn *insn) .off = 0, \ .imm = 0 }) +/* Speculation barrier */ + +#define BPF_ST_NOSPEC() \ + ((struct bpf_insn) { \ + .code = BPF_ST | BPF_NOSPEC, \ + .dst_reg = 0, \ + .src_reg = 0, \ + .off = 0, \ + .imm = 0 }) + /* Internal classic blocks for direct assignment */ #define __BPF_STMT(CODE, K) \ |