GKaszewski/k-os
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feat(kernel): console cap gates DebugPutchar, no uart fast path; spawn start arg in a0; delegate returns slot

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This commit is contained in:
Gabriel Kaszewski
2026-10-27 14:54:36 +01:00
parent 33e1c849d1
commit 7415bab7f5
31 changed files with 290 additions and 64 deletions
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15
crates/adapter-riscv/src/main.rs
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@@ -39,7 +39,7 @@ extern "C" fn kmain(hart: usize) -> ! {
let mut blk =
boot::hardware::probe_block_device(&uart).unwrap_or_else(|| halt(&uart, "no block device"));
let (init, _) = boot::loader::load_init(&uart, &mut blk);
let init = boot::loader::load_init(&uart, &mut blk);
let storage = boot::loader::load_server(&uart, &mut blk, b"storage.elf", "storage");
let display = boot::loader::load_server(&uart, &mut blk, b"display.elf", "display");
let input = boot::loader::load_server(&uart, &mut blk, b"input.elf", "input");
@@ -50,19 +50,14 @@ extern "C" fn kmain(hart: usize) -> ! {
.unwrap_or_else(|_| halt(&uart, "board registration failed"));
devices::display_quota(&uart, display.pid);
boot::caps::grant_all(&uart, init.pid, storage.pid, display.pid, input.pid);
// Last, so the servers' fixed slots stay where they expect them.
boot::caps::grant_console(&uart, &[storage, display, input]);
// After grant_all: init already relies on those slots.
let mut placed = [None; board::BOARD_DEVICES];
let system_control = kern_mut()
let boot_caps = kern_mut()
.grant_boot_authority(init.pid, &board, &mut placed)
.unwrap_or_else(|_| halt(&uart, "boot authority failed"));
devices::boot_info(
&uart,
init.pid,
&board,
&board::kinds(),
&placed,
system_control,
);
devices::boot_info(&uart, init.pid, &board, &board::kinds(), &placed, boot_caps);
start_other_harts(&uart, hart);
uart.write_str("k-os: entering userspace\n");