diff options
| author | Xiang W <[email protected]> | 2026-01-04 13:18:10 +0800 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2026-02-20 11:23:13 +0530 |
| commit | ecdb6c90c83dfc89964e55d7c2a94a5c0f6bc437 (patch) | |
| tree | 047981e153e6123c8f970d6b17f297062cafa7ee /include | |
| parent | b27ecec76b8acfece9c28078d02cbc6bc762135c (diff) | |
firmware: Initialize stack guard via Zkr
Try to initialize stack protection guard via the zkr extension.
Signed-off-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Anup Patel <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sbi/riscv_encoding.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/sbi/riscv_encoding.h b/include/sbi/riscv_encoding.h index b5a4ce81..3c1d5256 100644 --- a/include/sbi/riscv_encoding.h +++ b/include/sbi/riscv_encoding.h @@ -261,6 +261,16 @@ #define CSR_FRM 0x002 #define CSR_FCSR 0x003 +/* User entropy source */ +#define CSR_SEED 0x015 +#define SEED_OPTS_SHIFT 30 +#define SEED_OPTS_MASK (_UL(3) << SEED_OPTS_SHIFT) +#define SEED_OPTS_BIST (_UL(0) << SEED_OPTS_SHIFT) +#define SEED_OPTS_WAIT (_UL(1) << SEED_OPTS_SHIFT) +#define SEED_OPTS_ES16 (_UL(2) << SEED_OPTS_SHIFT) +#define SEED_OPTS_DEAD (_UL(3) << SEED_OPTS_SHIFT) +#define SEED_ENTROPY_MASK 0xffff + /* User Counters/Timers */ #define CSR_CYCLE 0xc00 #define CSR_TIME 0xc01 |