diff options
| -rw-r--r-- | machine/minit.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/machine/minit.c b/machine/minit.c index 0a87633..32c6fd7 100644 --- a/machine/minit.c +++ b/machine/minit.c @@ -197,6 +197,10 @@ void enter_supervisor_mode(void (*fn)(uintptr_t), uintptr_t arg0, uintptr_t arg1 mstatus = INSERT_FIELD(mstatus, MSTATUS_MPIE, 0); write_csr(mstatus, mstatus); write_csr(mscratch, MACHINE_STACK_TOP() - MENTRY_FRAME_SIZE); +#ifndef __riscv_flen + uintptr_t *p_fcsr = MACHINE_STACK_TOP() - MENTRY_FRAME_SIZE; // the x0's save slot + *p_fcsr = 0; +#endif write_csr(mepc, fn); register uintptr_t a0 asm ("a0") = arg0; |