rust-osdev / rust-osdev/bootloader
Enable support for SMP Trampoline
Nobody has claimed this yet.
- Dominant language
- Rust
- Stars
- 1.7k
- Forks
- 240
- PR merge metrics
- No merged PRs in 30d
Description
The current entry point is hardcoded to _start (or the entry_point! macro). This provides a single entry point to the code.
When bootstrapping SMP, the new processor starts up at a given physical address in the IPI (Inter-Processor Interrupt) in 16 bit mode. This requires us to start at 16 bit code and enable 64 bit mode again. Please provide a way to define multiple "entry points" which defaults to the current _start but can also be used to bootstrap SMP.
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing how the hardcoded _start entry point and entry_point! macro define the current boot path. Then inspect the SMP bootstrap flow described in the issue, including the 16-bit startup and return to 64-bit mode. Done means supporting multiple entry points while preserving _start as the default and enabling SMP bootstrapping.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- operating-systems
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100