diff options
Diffstat (limited to 'kernel/start.c')
-rw-r--r-- | kernel/start.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/start.c b/kernel/start.c index 1876680..938e837 100644 --- a/kernel/start.c +++ b/kernel/start.c @@ -38,6 +38,11 @@ start() w_mideleg(0xffff); w_sie(r_sie() | SIE_SEIE | SIE_STIE | SIE_SSIE); + // configure Physical Memory Protection to give supervisor mode + // access to all of physical memory. + w_pmpaddr0(0x3fffffffffffffull); + w_pmpcfg0(0xf); + // ask for clock interrupts. timerinit(); |