# xCuri0/ReBarUEFI

Resizable BAR for (almost) any UEFI system

Repository: https://github.com/xCuri0/ReBarUEFI
Canonical: https://ross.abutalabs.com/products/rebaruefi
Language: C
License: MIT
License Family: permissive
Topics: dxe-driver, edk2, efi, uefi
Last push: 2025-12-01T18:05:18+00:00

## Health v2 (maintenance only)
Score: 48/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 55, release rhythm 8, longevity 100
- inputs: {"age_days": 1513, "days_push": 275, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2343, forks 114 (observed 2026-08-28T04:06:39.225464+00:00)

## What it is
A UEFI DXE driver (built with edk2) that enables Resizable BAR on motherboards that lack official support, injected into the firmware's DXE volume. It ships with a ReBarState utility to configure the BAR size after the patched firmware is installed.

## Use cases
- enable resizable BAR on an unsupported motherboard
- make an Intel Arc GPU work optimally
- patch UEFI firmware to add ReBAR support
- increase GPU performance via large PCIe BAR
- set Resizable BAR size from Linux or Windows

## When to choose
- your motherboard BIOS has no Resizable BAR option
- you need ReBAR for Intel Arc GPUs
- you are comfortable modifying your UEFI firmware image

## When to avoid
- you are not comfortable flashing modified firmware (risk of bricking)
- your system requires Secure Boot with only signed modules
- you only want a simple BIOS toggle rather than firmware patching

## Facets
- artifact type: library
- maturity: active
- function: embedded, developer-tools, configuration-management
- domain: hardware, operating-systems, performance
- platform: cross-platform, cli
- tags: uefi, dxe-driver, edk2, resizable-bar, firmware-patching, pcie, gpu

## Member repositories
- xCuri0/ReBarUEFI (main) score 48

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:39.225464+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:37:16.231877+00:00, confidence not recorded.
  - readme: https://github.com/xCuri0/ReBarUEFI (fetched 2026-08-28T04:06:39.225464+00:00, sha 82e9cb6c9b81)
- Data as of 2026-08-30T08:39:29.467469+00:00.