---
title: "Prepare PCI passthrough"
method: POST
path: "/system/ppt-devices/prepare"
tags: ["System"]
---

# Prepare PCI passthrough

`POST /system/ppt-devices/prepare`

Add a domain-zero PCI device to loader.conf for passthrough after reboot

## Request body

- InternalHandlersSystemAddPassthroughDeviceRequest
  - `deviceID` string, required
  - `domain` string, required

## Response `200`

Success

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

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — PCI Device Not Found
- `413` — Request Entity Too Large
- `500` — Internal Server Error

## Changes

- **2026-08-12** `9a5026bf9057` — 4 info
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - added the non-success response with the status `404`
  - added the non-success response with the status `413`
- **2026-03-09** `e8945e17af75` — 1 info
  - endpoint added
- **2025-03-11** `2b736ca1b025` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/alchemillahq/apis/sylve-api/changes/system/ppt-devices/prepare/post.md)

---

[API](https://skmtc.dev/alchemillahq/apis/sylve-api.md) · [All operations](https://skmtc.dev/alchemillahq/apis/sylve-api/llms.txt) · [OpenAPI document](https://skmtc.dev/alchemillahq/apis/sylve-api/revisions/6d4b8bb77d9a?raw)