diff options
| -rw-r--r-- | lib/sbi_trap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sbi_trap.c b/lib/sbi_trap.c index ea5ba6b..a8c9b36 100644 --- a/lib/sbi_trap.c +++ b/lib/sbi_trap.c @@ -142,6 +142,7 @@ void sbi_trap_handler(struct sbi_trap_regs *regs, const char *msg = "trap handler failed"; u32 hartid = sbi_current_hartid(); ulong mcause = csr_read(CSR_MCAUSE); + ulong mtval = csr_read(CSR_MTVAL); if (mcause & (1UL << (__riscv_xlen - 1))) { mcause &= ~(1UL << (__riscv_xlen - 1)); @@ -178,6 +179,8 @@ void sbi_trap_handler(struct sbi_trap_regs *regs, msg = "ecall handler failed"; break; default: + /* If the trap came from S or U mode, redirect it there */ + rc = sbi_trap_redirect(regs, scratch, regs->mepc, mcause, mtval); break; }; |