---
id: pr-vllm-39676
repo: vllm-project/vllm
pr: 39676
title: '[XPU] properly handle q_descale on XPU as quant query input not supported'
author: yma11
date: '2026-04-15'
url: https://github.com/vllm-project/vllm/pull/39676
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: 3beb57a238b82fe90e8b99e009c876343b9d9703
inclusion_reason: kernel file changes
changed_paths:
- vllm/v1/attention/backends/flash_attn.py
head_ref_oid: cf2a7ca73acc04072066865958d63a0d300caf98
artifact_dir: evidence/pull-bundles/vllm/gh-39676
---
# [XPU] properly handle q_descale on XPU as quant query input not supported

- Repository: `vllm-project/vllm`
- PR: [39676](https://github.com/vllm-project/vllm/pull/39676)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/v1/attention/backends/flash_attn.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-39676`
