diff options
| -rw-r--r-- | lib/sbi/sbi_hart.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index 018fe85..6dac84b 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -87,6 +87,14 @@ static int delegate_traps(struct sbi_scratch *scratch, u32 hartid) (1U << CAUSE_LOAD_PAGE_FAULT) | (1U << CAUSE_STORE_PAGE_FAULT); + /* + * If hypervisor extension available then we only handle + * hypervisor calls (i.e. ecalls from HS-mode) and we let + * HS-mode handle supervisor calls (i.e. ecalls from VS-mode) + */ + if (misa_extension('H')) + exceptions |= (1U << CAUSE_SUPERVISOR_ECALL); + csr_write(CSR_MIDELEG, interrupts); csr_write(CSR_MEDELEG, exceptions); |