first commit

This commit is contained in:
Elaina Claus
2023-03-14 09:41:14 -04:00
commit edf6174c4a
9 changed files with 433 additions and 0 deletions

6
.cargo/config.toml Executable file
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[unstable]
build-std = ["core", "compiler_builtins", "alloc"]
build-std-features = ["compiler-builtins-mem"]
[build]
target = "x86_64-unknown-uefi"

1
.gitignore vendored Normal file
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/target

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191
Cargo.lock generated Executable file
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16
Cargo.toml Normal file
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[package]
name = "stubby"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rlibc = "1.0.0"
uefi = { version = "0.19.1", features = ['logger', 'alloc', ] }
uefi-services = "0.16.0"
uefi-macros = "0.10.0"
log = { version = "0.4.17", default-features = false }
goblin = { version = "0.6.1", default-features = false, features = ['elf32', 'elf64', 'alloc', 'endian_fd'] }
arrayvec = { version = "0.7.2", default-features = false }

46
Makefile Executable file
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ARCH ?= x86_64
TARGET ?= $(ARCH)-unknown-uefi
PROJECT ?= stubby
OVMF_FW := OVMF_CODE.fd
OVMF_VARS = OVMF_VARS.fd
BOOT_DIR := BOOT
qemu_args := -nodefaults -vga std -monitor vc:1440x900 -serial stdio -machine q35,accel=kvm:hvf -no-shutdown -no-reboot -m 256M
qemu_efi := -drive if=pflash,format=raw,readonly=on,file=$(OVMF_FW)
qemu_efi_vars := -drive if=pflash,format=raw,file=$(OVMF_VARS)
qemu_drive := -drive format=raw,file=fat:rw:$(BOOT_DIR)
target_debug := target/$(TARGET)/debug/$(PROJECT).efi
target_release := target/$(TARGET)/release/$(PROJECT).efi
.PHONY: all release debug clean run-debug run
all: $(target_debug) $(target_release)
debug: $(target_debug)
release: $(target_release)
clean:
rm -rv $(BOOT_DIR)
@RUST_TARGET_PATH=$(shell pwd) cargo clean --target $(TARGET)
run-debug: $(target_debug)
@RUST_TARGET_PATH=$(shell pwd) cargo +nightly build -Z build-std --target $(TARGET) --verbose
mkdir -p $(BOOT_DIR)/EFI/BOOT/
cp -v $(target_debug) $(BOOT_DIR)/EFI/BOOT/BOOTX64.EFI
@qemu-system-$(ARCH) $(qemu_args) $(qemu_efi) $(qemu_efi_vars) $(qemu_drive)
run: $(target_release)
@RUST_TARGET_PATH=$(shell pwd) cargo +nightly build -Z build-std --target $(TARGET) --release
mkdir -p $(BOOT_DIR)/EFI/BOOT/
cp -v $(target_release) $(BOOT_DIR)/EFI/BOOT/BOOTX64.EFI
@qemu-system-$(ARCH) $(qemu_args) $(qemu_efi) $(qemu_efi_vars) $(qemu_drive)
$(target_debug):
@RUST_TARGET_PATH=$(shell pwd) cargo +nightly build -Z build-std --target $(TARGET) --verbose
mkdir -p $(BOOT_DIR)/EFI/BOOT/
cp -v $(target_debug) $(BOOT_DIR)/EFI/BOOT/BOOTX64.EFI
$(target_release):
@RUST_TARGET_PATH=$(shell pwd) cargo +nightly build -Z build-std --target $(TARGET) --release
mkdir -p $(BOOT_DIR)/EFI/BOOT/
cp -v $(target_release) $(BOOT_DIR)/EFI/BOOT/BOOTX64.EFI

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src/main.rs Normal file
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#![no_std]
#![no_main]
#![allow(unused)]
#[macro_use]
extern crate log;
#[macro_use]
extern crate alloc;
// Keep this line to ensure the `mem*` functions are linked in.
extern crate rlibc;
extern crate goblin;
extern crate uefi;
extern crate uefi_services;
#[macro_use]
extern crate uefi_macros;
use core::ffi::c_void;
use core::ptr;
use uefi::Handle;
use uefi::{prelude::*, Identify};
use uefi::{
proto::console::gop::{BltOp, BltPixel, FrameBuffer, GraphicsOutput, PixelFormat},
table::boot::{
AllocateType, BootServices, MemoryType, OpenProtocolAttributes, OpenProtocolParams,
},
};
#[uefi_macros::entry]
pub fn efi_main(_image: Handle, mut st: SystemTable<Boot>) -> Status {
// Initialize logging, memory allocation and uefi services
let mut bt = match uefi_services::init(&mut st) {
Ok(_) => {
st.stdout().clear();
st.stdout().set_color(
uefi::proto::console::text::Color::LightMagenta,
uefi::proto::console::text::Color::Black,
);
// output firmware-vendor (CStr16 to Rust string)
// max size of 32 characters
let mut buf = arrayvec::ArrayString::<32>::new();
st.firmware_vendor().as_str_in_buf(&mut buf).unwrap();
info!("Firmware Vendor: {}", buf.as_str());
let rev = st.uefi_revision();
let (major, minor) = (rev.major(), rev.minor());
let buf = format!("UEFI {}.{}", major, minor / 10);
info!("{}", buf);
assert!(major >= 2, "Running on an old, unsupported version of UEFI");
assert!(
minor >= 30,
"Old version of UEFI 2, some features might not be available."
);
st.boot_services()
}
Err(_) => {
panic!();
}
};
let handle = bt.get_handle_for_protocol::<GraphicsOutput>()
.expect("missing GraphicsOutput protocol");
let mut gop = unsafe {
let mut gop_proto = st.boot_services().open_protocol::<GraphicsOutput>(
OpenProtocolParams {
handle,
agent: st.boot_services().image_handle(),
controller: None,
},
// For this test, don't open in exclusive mode. That
// would break the connection between stdout and the
// video console.
OpenProtocolAttributes::GetProtocol,
)
.expect("failed to open Graphics Output Protocol");
gop_proto
};
set_graphics_mode(&mut gop);
fill_color(&mut gop);
draw_fb(&mut gop);
info!("GOP Framebuffer test complete");
// Return success status
Status::SUCCESS
}
// Set a larger graphics mode.
fn set_graphics_mode(gop: &mut GraphicsOutput) {
// We know for sure QEMU has a 1024x768 mode.
let mode = gop
.modes()
.find(|mode| {
let info = mode.info();
info.resolution() == (1024, 768)
})
.unwrap();
gop.set_mode(&mode).expect("Failed to set graphics mode");
}
// Fill the screen with color.
fn fill_color(gop: &mut GraphicsOutput) {
let op = BltOp::VideoFill {
// Cornflower blue.
color: BltPixel::new(100, 149, 237),
dest: (0, 0),
dims: (1024, 768),
};
gop.blt(op).expect("Failed to fill screen with color");
}
// Draw directly to the frame buffer.
fn draw_fb(gop: &mut GraphicsOutput) {
// The `virtio-gpu-pci` graphics device we use on aarch64 doesn't
// support `PixelFormat::BltOnly`.
if cfg!(target_arch = "aarch64") {
return;
}
let mi = gop.current_mode_info();
let stride = mi.stride();
let (width, height) = mi.resolution();
let mut fb = gop.frame_buffer();
type PixelWriter = unsafe fn(&mut FrameBuffer, usize, [u8; 3]);
unsafe fn write_pixel_rgb(fb: &mut FrameBuffer, pixel_base: usize, rgb: [u8; 3]) {
fb.write_value(pixel_base, rgb);
}
unsafe fn write_pixel_bgr(fb: &mut FrameBuffer, pixel_base: usize, rgb: [u8; 3]) {
fb.write_value(pixel_base, [rgb[2], rgb[1], rgb[0]]);
}
let write_pixel: PixelWriter = match mi.pixel_format() {
PixelFormat::Rgb => write_pixel_rgb,
PixelFormat::Bgr => write_pixel_bgr,
_ => {
info!("This pixel format is not supported by the drawing demo");
return;
}
};
let mut fill_rectangle = |(x1, y1), (x2, y2), color| {
assert!((x1 < width) && (x2 < width), "Bad X coordinate");
assert!((y1 < height) && (y2 < height), "Bad Y coordinate");
for row in y1..y2 {
for column in x1..x2 {
unsafe {
let pixel_index = (row * stride) + column;
let pixel_base = 4 * pixel_index;
write_pixel(&mut fb, pixel_base, color);
}
}
}
};
fill_rectangle((50, 30), (150, 600), [250, 128, 64]);
fill_rectangle((400, 120), (750, 450), [16, 128, 255]);
}