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Query RSDP address

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Philipp Oppermann
2021-04-06 17:41:57 +02:00
parent 9d78913a37
commit fb315be37b
1 changed files with 7 additions and 1 deletions
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8
src/main.rs
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@@ -7,7 +7,7 @@ extern crate alloc;
use alloc::vec::Vec; use alloc::vec::Vec;
use core::{alloc::Layout, fmt::Write, panic::PanicInfo}; use core::{alloc::Layout, fmt::Write, panic::PanicInfo};
use uefi::prelude::entry; use uefi::{prelude::entry, table::cfg};
#[entry] #[entry]
fn efi_main( fn efi_main(
@@ -28,6 +28,12 @@ fn efi_main(
v.push(2); v.push(2);
writeln!(stdout, "v = {:?}", v).unwrap(); writeln!(stdout, "v = {:?}", v).unwrap();
let mut config_entries = system_table.config_table().iter();
let rsdp_addr = config_entries
.find(|entry| matches!(entry.guid, cfg::ACPI_GUID | cfg::ACPI2_GUID))
.map(|entry| entry.address);
writeln!(stdout, "rsdp addr: {:?}", rsdp_addr).unwrap();
loop {} loop {}
} }