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[3.0] Enable CONFIG_PCI_P2PDMA, CONFIG_VFIO_PCI_DMABUF, CONFIG_IOMMUFD and CONFIG_IOMMUFD_VFIO_CONTAINER to support GPU pass-thru on arm64 #18622

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[3.0] Enable CONFIG_PCI_P2PDMA, CONFIG_VFIO_PCI_DMABUF, CONFIG_IOMMUFD and CONFIG_IOMMUFD_VFIO_CONTAINER to support GPU pass-thru on arm64 #18622

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830455b
feat(kernel-hwe): enable IOMMUFD VFIO container for QEMU
rlmenge Jun 18, 2026
30fb176
feat: enable GPU pass-thru support for kernel-hwe on arm64
henryli001 Aug 7, 2026
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5 changes: 4 additions & 1 deletion SPECS-SIGNED/kernel-hwe-signed/kernel-hwe-signed.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@
Summary: Signed Linux Kernel for %{buildarch} systems
Name: kernel-hwe-signed-%{buildarch}
Version: 6.18.43.1
Release: 1%{?dist}
Release: 2%{?dist}
License: GPLv2
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand Down Expand Up @@ -108,6 +108,9 @@ echo "initrd of kernel %{uname_r} removed" >&2
%exclude /module_info.ld

%changelog
* Tue Aug 25 2026 Henry Li <lihl@microsoft.com> - 6.18.43.1-2
- Bump release to match kernel-hwe.

* Mon Aug 10 2026 CBL-Mariner Servicing Account <cblmargh@microsoft.com> - 6.18.43.1-1
- Auto-upgrade to 6.18.43.1

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5 changes: 4 additions & 1 deletion SPECS/kernel-hwe-headers/kernel-hwe-headers.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
Summary: Linux API header files
Name: kernel-hwe-headers
Version: 6.18.43.1
Release: 1%{?dist}
Release: 2%{?dist}
License: GPLv2
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand Down Expand Up @@ -35,6 +35,9 @@ cp -rv usr/include/* /%{buildroot}%{_includedir}
%{_includedir}/*

%changelog
* Tue Aug 25 2026 Henry Li <lihl@microsoft.com> - 6.18.43.1-2
- Bump release to match kernel-hwe.

* Mon Aug 10 2026 CBL-Mariner Servicing Account <cblmargh@microsoft.com> - 6.18.43.1-1
- Auto-upgrade to 6.18.43.1

Expand Down
10 changes: 6 additions & 4 deletions SPECS/kernel-hwe/config_aarch64
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Original file line number Diff line number Diff line change
Expand Up @@ -2168,7 +2168,7 @@ CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
CONFIG_PCIE_TPH=y
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_P2PDMA=y
CONFIG_PCI_LABEL=y
CONFIG_PCI_HYPERV=y
CONFIG_PCI_DYNAMIC_OF_NODES=y
Expand Down Expand Up @@ -7065,6 +7065,7 @@ CONFIG_DRM_AMD_SECURE_DISPLAY=y

CONFIG_HSA_AMD=y
CONFIG_HSA_AMD_SVM=y
# CONFIG_HSA_AMD_P2P is not set
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_PLATFORM_DRIVER=y
CONFIG_NOUVEAU_DEBUG=5
Expand Down Expand Up @@ -9206,8 +9207,7 @@ CONFIG_UIO_PCI_GENERIC=m
CONFIG_VFIO=m
CONFIG_VFIO_DEVICE_CDEV=y
CONFIG_VFIO_GROUP=y
CONFIG_VFIO_CONTAINER=y
CONFIG_VFIO_IOMMU_TYPE1=m
# CONFIG_VFIO_CONTAINER is not set
# CONFIG_VFIO_NOIOMMU is not set
CONFIG_VFIO_VIRQFD=y
# CONFIG_VFIO_DEBUGFS is not set
Expand All @@ -9218,6 +9218,7 @@ CONFIG_VFIO_VIRQFD=y
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=m
CONFIG_VFIO_PCI_DMABUF=y
CONFIG_MLX5_VFIO_PCI=m
CONFIG_PDS_VFIO_PCI=m
CONFIG_VIRTIO_VFIO_PCI=m
Expand Down Expand Up @@ -9781,7 +9782,8 @@ CONFIG_ARM_SMMU_V3_IOMMUFD=y
CONFIG_TEGRA241_CMDQV=y
# CONFIG_QCOM_IOMMU is not set
CONFIG_IOMMUFD_DRIVER_CORE=y
CONFIG_IOMMUFD=m
CONFIG_IOMMUFD=y
CONFIG_IOMMUFD_VFIO_CONTAINER=y
# CONFIG_ROCKCHIP_IOMMU is not set
# CONFIG_SUN50I_IOMMU is not set
CONFIG_TEGRA_IOMMU_SMMU=y
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2 changes: 1 addition & 1 deletion SPECS/kernel-hwe/kernel-hwe.signatures.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
"Signatures": {
"azurelinux-ca-20230216.pem": "d545401163c75878319f01470455e6bc18a5968e39dd964323225e3fe308849b",
"config": "0e7c47da2740ecede03466f02e16f7a934efb8b66796f9c646e33b68e88e96a7",
"config_aarch64": "595382eff902c3de62ccb322e41007cc6d14a19b1bacc995d9cf83f82f5eea95",
"config_aarch64": "719834b3bf10b3c6ae3a98e4e3856dcffadb822fd770855c5735255172bd0352",
"cpupower": "d7518767bf2b1110d146a49c7d42e76b803f45eb8bd14d931aa6d0d346fae985",
"cpupower.service": "b057fe9e5d0e8c36f485818286b80e3eba8ff66ff44797940e99b1fd5361bb98",
"sha512hmac-openssl.sh": "8bb4094cb09cd7a8bced236ccb44c3cabc82716679ce497bf040332897e47cd0",
Expand Down
6 changes: 5 additions & 1 deletion SPECS/kernel-hwe/kernel-hwe.spec
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@
Summary: Linux Kernel
Name: kernel-hwe
Version: 6.18.43.1
Release: 1%{?dist}
Release: 2%{?dist}
License: GPLv2
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand Down Expand Up @@ -430,6 +430,10 @@ echo "initrd of kernel %{uname_r} removed" >&2
%{_sysconfdir}/bash_completion.d/bpftool

%changelog
* Thu Aug 20 2026 Henry Li <lihl@microsoft.com> - 6.18.43.1-2
- Enable CONFIG_PCI_P2PDMA, CONFIG_VFIO_PCI_DMABUF, CONFIG_IOMMUFD
- and CONFIG_IOMMUFD_VFIO_CONTAINER to support GPU pass-thru on arm64

* Mon Aug 10 2026 CBL-Mariner Servicing Account <cblmargh@microsoft.com> - 6.18.43.1-1
- Auto-upgrade to 6.18.43.1

Expand Down
10 changes: 10 additions & 0 deletions ...it/scripts/kernel_config_checker/kernel_configs_json/azl3-os-required-kernel-configs.json
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Expand Up @@ -3152,6 +3152,16 @@
],
"justification": "kernel-hwe 6.12 does not enable ICE_SWITCHDEV on arm64 - PR: https://github.com/microsoft/azurelinux/pull/10960"
},
{
"name": "CONFIG_PCI_P2PDMA",
"values": [
{
"architecture": "arm64",
"value": "y"
}
],
"justification": "Enable PCI peer-to-peer DMA for GPU pass-through on kernel-hwe arm64 - PR: https://github.com/microsoft/azurelinux/pull/18622"
},
{
"name": "CONFIG_CRYPTO_DH",
"values": [
Expand Down
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