Re: [OS-BUILD PATCH] redhat/configs: Fix CONFIG_VIRTIO_IOMMU to 'y' on aarch64

[Jerry Snitselaar (via Email Bridge)]

From: Jerry Snitselaar on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1289#note_645347993

Acked-by: Jerry Snitselaar 
(via approve button)
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Re: [OS-BUILD PATCH] redhat/configs: Fix CONFIG_VIRTIO_IOMMU to 'y' on aarch64

[pbrobinson (via Email Bridge)]

From: pbrobinson on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1289#note_644965461

LGTM :thumbsup:
Reviewed-by: Peter Robinson 
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Re: [OS-BUILD PATCH] redhat/configs: Fix CONFIG_VIRTIO_IOMMU to 'y' on aarch64

[Patrick Talbert (via Email Bridge)]

From: Patrick Talbert on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1289#note_644810737

@ddutile @alex.williamson as well
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[OS-BUILD PATCH] redhat/configs: Fix CONFIG_VIRTIO_IOMMU to 'y' on aarch64

[Eric Auger (via Email Bridge)]

From: Eric Auger 

redhat/configs: Fix CONFIG_VIRTIO_IOMMU to 'y' on aarch64

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1972795
Upstream Status: RHEL only
Tested: on ARM with qemu (Jean-Philippe Brucker's qemu branch as the
qemu integration is not yet upstream, with both protected virtio-blk-pci
and a virtio-net-pci devices)

Commit fe6d9534dbe4 ("redhat/configs: Set CONFIG_VIRTIO_IOMMU on aarch64")
enabled the compilation of the virtio-iommu driver on ARM but set the
config to 'm'. However if there are devices behind the vIOMMU that are
needed during the boot such as a virtio-blk-pci device, the guest fails
to boot as the driver is not loaded. Let's fix this bootstrap issue
by compiling the driver in-kernel as it is done for other iommu drivers.

Signed-off-by: Eric Auger 

diff --git a/redhat/configs/common/generic/arm/aarch64/CONFIG_VIRTIO_IOMMU 
b/redhat/configs/common/generic/arm/aarch64/CONFIG_VIRTIO_IOMMU
index blahblah..blahblah 100644
--- a/redhat/configs/common/generic/arm/aarch64/CONFIG_VIRTIO_IOMMU
+++ b/redhat/configs/common/generic/arm/aarch64/CONFIG_VIRTIO_IOMMU
@@ -1 +1 @@
-CONFIG_VIRTIO_IOMMU=m
+CONFIG_VIRTIO_IOMMU=y

--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1289
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