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deps: Update mu_msvm to v26.0.3 release#3421

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maheeraeron wants to merge 1 commit intomicrosoft:mainfrom
maheeraeron:user/maheeraeron/uefi-update
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deps: Update mu_msvm to v26.0.3 release#3421
maheeraeron wants to merge 1 commit intomicrosoft:mainfrom
maheeraeron:user/maheeraeron/uefi-update

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@maheeraeron
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mu_msvm release notes: https://github.com/microsoft/mu_msvm/releases/tag/v26.0.3

This includes a fix to a critical race condition with EfiHvDxe where we freed a page back to DXE core without clearing the RO flags, then try to write to it again after.

Copilot AI review requested due to automatic review settings May 5, 2026 01:12
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Pull request overview

Updates the pinned microsoft/mu_msvm UEFI firmware dependency to the v26.0.3 release, aligning both the Nix-based firmware fetch and Flowey pipeline version selection.

Changes:

  • Bump Nix uefi_mu_msvm derivation to download mu_msvm v26.0.3 artifacts.
  • Update Flowey’s central MU_MSVM version constant to 26.0.3.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File Description
nix/uefi_mu_msvm.nix Updates the mu_msvm release URL/version used by Nix to fetch MSVM.fd artifacts.
flowey/flowey_lib_hvlite/src/_jobs/cfg_versions.rs Bumps the Flowey pipeline’s mu_msvm version constant to match the new release.

Comment thread nix/uefi_mu_msvm.nix
Comment on lines +17 to 23
version = "26.0.3";

src = fetchzip {
url =
"https://github.com/microsoft/mu_msvm/releases/download/v26.0.1/RELEASE-${archToolchain}-artifacts.tar.gz";
"https://github.com/microsoft/mu_msvm/releases/download/v26.0.3/RELEASE-${archToolchain}-artifacts.tar.gz";
stripRoot = false;
inherit hash;
@maheeraeron maheeraeron marked this pull request as ready for review May 5, 2026 20:58
@maheeraeron maheeraeron requested a review from a team as a code owner May 5, 2026 20:58
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2 participants