Commit e2df6de1 authored by Stefan Lankes's avatar Stefan Lankes
Browse files

initial version

Move from the repository "libhermit-rs" to an own repository
parents
[build]
rustflags = [
"-C", "link-arg=-Tsrc/arch/x86_64/link.ld"
]
hard_tabs = true
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
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[package]
name = "rusty-loader"
version = "0.2.5"
authors = ["Stefan Lankes <slankes@eonerc.rwth-aachen.de>", "Colin Finck <colin.finck@rwth-aachen.de>"]
license = "MIT/Apache-2.0"
readme = "README.md"
[dependencies]
bitflags = "1.0.*"
[target.'cfg(target_arch = "x86_64")'.dependencies.multiboot]
version = "0.*"
[target.'cfg(target_arch = "x86_64")'.dependencies.x86]
version = "0.*"
default-features = false
[package.metadata.cargo-xbuild]
memcpy = true
# The release profile, used for `cargo build --release`.
[profile.dev]
opt-level = 1 # controls the `--opt-level` the compiler builds with
debug = true # controls whether the compiler passes `-C debuginfo`
# a value of `true` is equivalent to `2`
rpath = false # controls whether the compiler passes `-C rpath`
lto = false # controls `-C lto` for binaries and staticlibs
debug-assertions = true # controls whether debug assertions are enabled
[profile.release]
opt-level = 3
debug = false
rpath = false
lto = true
debug-assertions = false
codegen-units = 1
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arch ?= x86_64
target ?= $(arch)-unknown-hermit
release ?= 0
opt :=
rdir := debug
ifeq ($(release), 1)
opt := --release
rdir := release
endif
RN :=
ifdef COMSPEC
RM := del
else
RM := rm -rf
endif
.PHONY: all loader clippy clean docs
all: loader
clean:
@cargo clean
docs:
@echo DOC
@cargo doc
clippy:
@echo Run clippy...
@RUST_TARGET_PATH=$(CURDIR) cargo clippy --target $(target)
loader:
@echo Build loader
@RUST_TARGET_PATH=$(CURDIR) cargo xbuild $(opt) --target $(target)-loader
@objcopy --strip-debug -O elf32-i386 target/$(target)-loader/$(rdir)/rusty-loader
# rusty-loader
**rusty-loader** is a loader to run [RustyHermit](https://github.com/hermitcore/libhermit-rs) within [Qemu](https://www.qemu.org).
To build the loader the cargo subcommand [xbuild](https://github.com/rust-osdev/cargo-xbuild) is required and can be installed with following command:
```bash
$ cargo install cargo-xbuild
```
Afterwards, the loader can be build as follows:
````bash
$ cargo xbuild --target x86_64-unknown-hermit-loader.json
```
Afterwards, the loader is stored in `target/x86_64-unknown-hermit-loader/debug/` as `rusty-loader`.
As final step the unikernel application `app` can be booted with following command:
```bash
$ qemu-system-x86_64 -display none -smp 1 -m 64M -serial stdio -kernel path_to_loader/hermit-loader -initrd path_to_app/app -cpu qemu64,apic,fsgsbase,rdtscp,xsave,fxsr
```
It is important to enable the processor features _fsgsbase_ and _rdtscp_ because it is a prerequisite to boot RustyHermit.
Please read the README of [RustyHermit](https://github.com/hermitcore/libhermit-rs) for more information.
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
use std::env;
use std::path::Path;
use std::process::Command;
fn main() {
let out_dir = env::var("OUT_DIR").unwrap();
Command::new("nasm")
.args(&["src/arch/x86_64/entry.asm", "-felf64", "-o"])
.arg(&format!("{}/entry.o", out_dir))
.status()
.unwrap();
Command::new("ar")
.args(&["crus", "libentry.a", "entry.o"])
.current_dir(&Path::new(&out_dir))
.status()
.unwrap();
println!("cargo:rustc-link-search=native={}", out_dir);
println!("cargo:rustc-link-lib=static=entry");
}
// Copyright (c) 2018 Colin Finck, RWTH Aachen University
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
#[cfg(target_arch = "x86_64")]
pub use arch::x86_64::*;
#[cfg(target_arch = "x86_64")]
pub mod x86_64;
// Copyright (c) 2019 Stefan Lankes, RWTH Aachen University
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
use arch::x86_64::SERIAL_PORT_ADDRESS;
use core::fmt;
#[repr(C)]
#[derive(Clone, Copy)]
pub struct BootInfo {
pub magic_number: u32,
pub version: u32,
pub base: u64,
pub limit: u64,
pub image_size: u64,
pub tls_start: u64,
pub tls_filesz: u64,
pub tls_memsz: u64,
pub current_stack_address: u64,
pub current_percore_address: u64,
pub host_logical_addr: u64,
pub boot_gtod: u64,
pub mb_info: u64,
pub cmdline: u64,
pub cmdsize: u64,
pub cpu_freq: u32,
pub boot_processor: u32,
pub cpu_online: u32,
pub possible_cpus: u32,
pub current_boot_id: u32,
pub uartport: u16,
pub single_kernel: u8,
pub uhyve: u8,
pub hcip: [u8; 4],
pub hcgateway: [u8; 4],
pub hcmask: [u8; 4],
}
impl BootInfo {
pub const fn new() -> Self {
BootInfo {
magic_number: 0xC0DE_CAFEu32,
version: 1,
base: 0,
limit: 0,
tls_start: 0,
tls_filesz: 0,
tls_memsz: 0,
image_size: 0,
current_stack_address: 0,
current_percore_address: 0,
host_logical_addr: 0,
boot_gtod: 0,
mb_info: 0,
cmdline: 0,
cmdsize: 0,
cpu_freq: 0,
boot_processor: !0,
cpu_online: 0,
possible_cpus: 0,
current_boot_id: 0,
uartport: SERIAL_PORT_ADDRESS,
single_kernel: 1,
uhyve: 0,
hcip: [255, 255, 255, 255],
hcgateway: [255, 255, 255, 255],
hcmask: [255, 255, 255, 0],
}
}
}
impl fmt::Debug for BootInfo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
writeln!(f, "magic_number 0x{:x}", self.magic_number)?;
writeln!(f, "version 0x{:x}", self.version)?;
writeln!(f, "base 0x{:x}", self.base)?;
writeln!(f, "limit 0x{:x}", self.limit)?;
writeln!(f, "image_size 0x{:x}", self.image_size)?;
writeln!(
f,
"current_stack_address 0x{:x}",
self.current_stack_address
)?;
writeln!(
f,
"current_percore_address 0x{:x}",
self.current_percore_address
)?;
writeln!(f, "host_logical_addr 0x{:x}", self.host_logical_addr)?;
writeln!(f, "boot_gtod 0x{:x}", self.boot_gtod)?;
writeln!(f, "mb_info 0x{:x}", self.mb_info)?;
writeln!(f, "cmdline 0x{:x}", self.cmdline)?;
writeln!(f, "cmdsize 0x{:x}", self.cmdsize)?;
writeln!(f, "cpu_freq {}", self.cpu_freq)?;
writeln!(f, "boot_processor {}", self.boot_processor)?;
writeln!(f, "cpu_online {}", self.cpu_online)?;
writeln!(f, "possible_cpus {}", self.possible_cpus)?;
writeln!(f, "current_boot_id {}", self.current_boot_id)?;
writeln!(f, "uartport 0x{:x}", self.uartport)?;
writeln!(f, "single_kernel {}", self.single_kernel)?;
writeln!(f, "uhyve {}", self.uhyve)
}
}
; Copyright (c) 2010-2016, Stefan Lankes, RWTH Aachen University
; All rights reserved.
;
;
; Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
; http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
; http://opensource.org/licenses/MIT>, at your option. This file may not be
; copied, modified, or distributed except according to those terms.
; This is the kernel's entry point. We could either call main here,
; or we can use this to setup the stack or other nice stuff, like
; perhaps setting up the GDT and segments. Please note that interrupts
; are disabled at this point: More on interrupts later!
[BITS 32]
%define BOOT_STACK_SIZE 4096
extern kernel_start ; defined in linker script
extern kernel_end
; We use a special name to map this section at the begin of our kernel
; => Multiboot expects its magic number at the beginning of the kernel.
SECTION .mboot
; This part MUST be 4 byte aligned, so we solve that issue using 'ALIGN 4'.
ALIGN 4
mboot:
; Multiboot macros to make a few lines more readable later
MULTIBOOT_PAGE_ALIGN equ (1 << 0)
MULTIBOOT_MEMORY_INFO equ (1 << 1)
MULTIBOOT_HEADER_MAGIC equ 0x1BADB002
MULTIBOOT_HEADER_FLAGS equ MULTIBOOT_PAGE_ALIGN | MULTIBOOT_MEMORY_INFO
MULTIBOOT_CHECKSUM equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
; This is the GRUB Multiboot header. A boot signature
dd MULTIBOOT_HEADER_MAGIC
dd MULTIBOOT_HEADER_FLAGS
dd MULTIBOOT_CHECKSUM
dd 0, 0, 0, 0, 0 ; address fields
ALIGN 4
; we need already a valid GDT to switch in the 64bit modus
GDT64: ; Global Descriptor Table (64-bit).
.Null: equ $ - GDT64 ; The null descriptor.
dw 0 ; Limit (low).
dw 0 ; Base (low).
db 0 ; Base (middle)
db 0 ; Access.
db 0 ; Granularity.
db 0 ; Base (high).
.Code: equ $ - GDT64 ; The code descriptor.
dw 0 ; Limit (low).
dw 0 ; Base (low).
db 0 ; Base (middle)
db 10011010b ; Access.
db 00100000b ; Granularity.
db 0 ; Base (high).
.Data: equ $ - GDT64 ; The data descriptor.
dw 0 ; Limit (low).
dw 0 ; Base (low).
db 0 ; Base (middle)
db 10010010b ; Access.
db 00000000b ; Granularity.
db 0 ; Base (high).
.Pointer: ; The GDT-pointer.
dw $ - GDT64 - 1 ; Limit.
dq GDT64 ; Base.