acadia/rust/lib/mammoth/src/init.rs

51 lines
1.8 KiB
Rust

use crate::cap::Capability;
use crate::syscall;
use crate::zion::z_cap_t;
// From /zion/include/ztypes.h
pub const Z_INIT_SELF_PROC: u64 = 0x4000_0000;
pub const Z_INIT_SELF_VMAS: u64 = 0x4000_0001;
pub const Z_INIT_ENDPOINT: u64 = 0x4100_0000;
const Z_BOOT_DENALI_VMMO: u64 = 0x4200_0000;
const Z_BOOT_VICTORIA_FALLS_VMMO: u64 = 0x4200_0001;
const Z_BOOT_PCI_VMMO: u64 = 0x4200_0002;
const Z_BOOT_FRAMEBUFFER_INFO_VMMO: u64 = 0x4200_0003;
pub static mut SELF_PROC_CAP: z_cap_t = 0;
pub static mut SELF_VMAS_CAP: z_cap_t = 0;
pub static mut INIT_ENDPOINT: z_cap_t = 0;
// Boot capabilities, are generally only passed to yellowstone.
pub static mut BOOT_DENALI_VMMO: z_cap_t = 0;
pub static mut BOOT_VICTORIA_FALLS_VMMO: z_cap_t = 0;
pub static mut BOOT_PCI_VMMO: z_cap_t = 0;
pub static mut BOOT_FRAMEBUFFER_INFO_VMMO: z_cap_t = 0;
pub fn parse_init_port(port_cap: z_cap_t) {
let init_port = Capability::take(port_cap);
loop {
let mut bytes: [u8; 8] = [0; 8];
let mut caps: [u64; 1] = [0];
let resp = syscall::port_poll(&init_port, &mut bytes, &mut caps);
if let Err(_) = resp {
break;
}
let init_sig = u64::from_le_bytes(bytes);
unsafe {
match init_sig {
Z_INIT_SELF_PROC => SELF_PROC_CAP = caps[0],
Z_INIT_SELF_VMAS => SELF_VMAS_CAP = caps[0],
Z_INIT_ENDPOINT => INIT_ENDPOINT = caps[0],
Z_BOOT_DENALI_VMMO => BOOT_DENALI_VMMO = caps[0],
Z_BOOT_VICTORIA_FALLS_VMMO => BOOT_VICTORIA_FALLS_VMMO = caps[0],
Z_BOOT_PCI_VMMO => BOOT_PCI_VMMO = caps[0],
Z_BOOT_FRAMEBUFFER_INFO_VMMO => BOOT_FRAMEBUFFER_INFO_VMMO = caps[0],
_ => syscall::debug("Unknown Cap in Init"),
}
}
}
}