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Change to id_map_range

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This commit is contained in:
Stephen Marz 2019-10-09 20:27:45 -04:00
parent 7a6ba92732
commit 19eac921db
1 changed files with 10 additions and 24 deletions
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34
risc_v/ch3/src/lib.rs
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@ -208,32 +208,18 @@ extern "C" fn kinit() -> usize {
page::EntryBits::ReadWrite.val(),
);
// PLIC
// -> Source priority
page::map(
&mut root,
0x0c00_0000,
0x0c00_0000,
page::EntryBits::ReadWrite.val(),
id_map_range(
&mut root,
0x0c00_0000,
0x0c00_2000,
page::EntryBits::ReadWrite.val(),
);
// -> Pending array
page::map(
&mut root,
0x0c00_1000,
0x0c00_1000,
page::EntryBits::ReadWrite.val(),
id_map_range(
&mut root,
0x0c20_0000,
0x0c20_8000,
page::EntryBits::ReadWrite.val(),
);
// -> Interrupt enables
page::map(
&mut root,
0x0c00_2000,
0x0c00_2000,
page::EntryBits::ReadWrite.val(),
);
// -> Priority threshold and claim/complete registers
for i in 0..=8 {
let m = 0x0c20_0000 + (i << 12);
page::map(&mut root, m, m, page::EntryBits::ReadWrite.val());
}
// When we return from here, we'll go back to boot.S and switch into
// supervisor mode We will return the SATP register to be written when