diff options
Diffstat (limited to 'machine/minit.c')
| -rw-r--r-- | machine/minit.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/machine/minit.c b/machine/minit.c index e84f6d9..0a1e37e 100644 --- a/machine/minit.c +++ b/machine/minit.c @@ -21,6 +21,9 @@ static void mstatus_init() write_csr(mucounteren, -1); write_csr(mscounteren, -1); write_csr(mie, ~MIP_MTIP); // disable timer; enable other interrupts + + // Disable paging + write_csr(sptbr, 0); } // send S-mode interrupts and most exceptions straight to S-mode @@ -141,7 +144,6 @@ void enter_supervisor_mode(void (*fn)(uintptr_t), uintptr_t arg0, uintptr_t arg1 write_csr(mstatus, mstatus); write_csr(mscratch, MACHINE_STACK_TOP() - MENTRY_FRAME_SIZE); write_csr(mepc, fn); - write_csr(sptbr, 0); register uintptr_t a0 asm ("a0") = arg0; register uintptr_t a1 asm ("a1") = arg1; |