diff options
| -rw-r--r-- | lib/sbi/sbi_hart.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index 569596f1..b47f00b2 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -160,6 +160,12 @@ static void mstatus_init(struct sbi_scratch *scratch) } csr_write(CSR_MENVCFG, menvcfg_val); + + /* Enable S-mode access to seed CSR */ + if (sbi_hart_has_extension(scratch, SBI_HART_EXT_ZKR)) { + csr_set(CSR_MSECCFG, MSECCFG_SSEED); + csr_clear(CSR_MSECCFG, MSECCFG_USEED); + } } /* Disable all interrupts */ |