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temp stage2:add pmpaddr0/pmpcfg0 setup

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This commit is contained in:
Yu Chen 2023-01-03 08:45:00 +08:00
parent 2e57ec432a
commit b1c5751546
1 changed files with 5 additions and 4 deletions
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9
os/src/main.rs
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@ -121,7 +121,8 @@ pub unsafe fn rust_start() -> ! {
// configure Physical Memory Protection to give supervisor mode
// access to all of physical memory.
//pmpaddr0::write(0x3fffffffffffff);
pmpaddr0::write(0x3fffffffffffff);
pmpcfg0::write(0xf);
//pmpcfg0::set_pmp(0, Range::TOR, Permission::RWX, false); // 0 < addr < pmpaddr0
// ask for clock interrupts.
@ -249,12 +250,12 @@ unsafe fn timer_init() {
#[no_mangle]
pub fn rust_main() -> ! {
//clear_bss();
clear_bss();
//println!("KERN: begin");
println!("KERN: begin");
mm::init();
loop{};
//loop{};
//println!("KERN: init gpu");
//let _gpu = GPU_DEVICE.clone();
// println!("KERN: init keyboard");