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Fixed typos, updates.

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This commit is contained in:
Stephen Marz 2019-11-04 13:04:00 -05:00
parent 6cbf12ada9
commit f13948d5c0
2 changed files with 3 additions and 1 deletions
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2
risc_v/ch4/src/lib.rs
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@ -358,7 +358,7 @@ extern "C" fn kmain() {
mtimecmp.write_volatile(mtime.read_volatile() + 10_000_000);
// Let's cause a page fault and see what happens. This should trap
// to s_trap under trap.rs
// to m_trap under trap.rs
let v = 0x0 as *mut u64;
v.write_volatile(0);
}

2
risc_v/ch4/src/trap.rs
View File

@ -34,6 +34,7 @@ extern "C" fn m_trap(epc: usize,
match cause_num {
3 => {
// Machine software
println!("Machine software interrupt CPU#{}", hart);
},
7 => unsafe {
// Machine timer
@ -45,6 +46,7 @@ extern "C" fn m_trap(epc: usize,
},
11 => {
// Machine external (interrupt from Platform Interrupt Controller (PLIC))
println!("Machine external interrupt CPU#{}", hart);
},
_ => {
panic!("Unhandled async trap CPU#{} -> {}\n", hart, cause_num);