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| author | Alyssa Ross <hi@alyssa.is> | 2022-09-22 07:56:28 +0000 |
|---|---|---|
| committer | Alyssa Ross <hi@alyssa.is> | 2022-11-12 12:01:43 +0000 |
| commit | 7a4389a94ecffadf9ece46423c1824280114d5a8 (patch) | |
| tree | 77b5cbd12b51143c4086da63e40d37492258ee2a /img/live/Makefile | |
| parent | 169fdd697771326fb111ab4532804a40e0fbeaa1 (diff) | |
| download | spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.tar spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.tar.gz spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.tar.bz2 spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.tar.lz spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.tar.xz spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.tar.zst spectrum-7a4389a94ecffadf9ece46423c1824280114d5a8.zip | |
Set intel_iommu=on in kernel command line
In Nixpkgs kernels, Intel IOMMUs are disabled by default (CONFIG_INTEL_IOMMU_DEFAULT_ON=n), so it needs to be explicitly enabled on the kernel command line. This was already done in the rootfs run make target, which is what I mostly use for testing, which is why I hadn't noticed until now. We could also set CONFIG_INTEL_IOMMU_DEFAULT_ON, but I think it's better to avoid changing our kernel configuration too much at the moment. (This might change in future if we want to go all in.) No changes are required for AMD IOMMUs, which are enabled by default. Reported-by: Vadim Likholetov <vadim.likholetov@unikie.com> Signed-off-by: Alyssa Ross <hi@alyssa.is> Message-Id: <20220922075629.247058-2-hi@alyssa.is>
Diffstat (limited to 'img/live/Makefile')
| -rw-r--r-- | img/live/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/img/live/Makefile b/img/live/Makefile index e63c598..5507c2f 100644 --- a/img/live/Makefile +++ b/img/live/Makefile @@ -26,7 +26,7 @@ build/spectrum.conf: build/rootfs.verity.roothash printf "title Spectrum\n" > $@ printf "linux /spectrum/linux\n" >> $@ printf "initrd /spectrum/initrd\n" >> $@ - printf "options ro console=tty console=ttyS0 roothash=" >> $@ + printf "options ro console=tty console=ttyS0 intel_iommu=on roothash=" >> $@ cat build/rootfs.verity.roothash >> $@ build/boot.fat: $(KERNEL) $(INITRAMFS) $(SYSTEMD_BOOT_EFI) build/spectrum.conf |