oxidecomputer / oxidecomputer/propolis

implement CPUID profiles

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Dominant language
Rust
Stars
270
Forks
42
Avg merge
4d 5h
Merged PRs (30d)
6

Description

RFD 314 documented the proposed contents for CPUID leafs presented to the guest. We need to make that a reality for guests by:

  1. Wiring up propolis to be able to configure the in-kernel vmm CPUID tables for the vCPUs
  2. Build logic to read in a CPUID "profile" (presumably correlated to a given version of the instance profile) and customize it with any instance specific (vCPU count/topology) details
  3. Determine how this CPUID data will be handled during a migration

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading RFD 314 and tracing how propolis configures the in-kernel vmm for vCPUs. Define the CPUID profile input, instance-specific vCPU topology customization, and migration handling; done means guests receive the intended CPUID data consistently across migration.

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
Needs clarification
Newbie friendliness
25/100

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