---
title: "Replace virtual machine CPU configuration"
method: PUT
path: "/vm/{rid}/hardware/cpu"
tags: ["VM"]
---

# Replace virtual machine CPU configuration

`PUT /vm/{rid}/hardware/cpu`

Replace the CPU topology and pinning configuration of a shut-off virtual machine

## Path parameters

- `rid` integer, required

## Request body

- GithubComAlchemillahqSylveInternalInterfacesServicesLibvirtModifyCPURequest
  - `cpuCores` integer, required
  - `cpuPinning` GithubComAlchemillahqSylveInternalInterfacesServicesLibvirtCPUPinning[]
    - `cores` integer[], required
    - `socket` integer, required
  - `cpuSockets` integer, required
  - `cpuThreads` integer, required

## Response `200`

Success

- GithubComAlchemillahqSylveInternalAPIResponseAny
  - `data` unknown
  - `error` string
  - `message` string
  - `status` string

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `409` — Conflict
- `500` — Internal Server Error
- `503` — Service Unavailable

---

[API](https://skmtc.net/alchemillahq/apis/sylve-api.md) · [All operations](https://skmtc.net/alchemillahq/apis/sylve-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/alchemillahq/sylve-api/revisions/7a7bea85004e/schema)