Leah Rowe 944cafa230 coreboot/haswell: make IOMMU a runtime option ... It is now possible to disable the IOMMU on Haswell boards, by doing this on your ROM image: ./nvramtool -C libreboot.rom -w iommu=Disable To enable it again, do this: ./nvramtool -C libreboot.rom -w iommu=Enable If not specified, the default behaviour is *on*. A follow-up patch will turn IOMMU *off* by default, on Dell OptiPlex 9020 SFF/MT, by setting it as such in cmos.default. This is to make graphics cards work properly to work around a bug when it's turned on. Leaving the IOMMU enabled is recommended, if it works. It works in most cases, including on 9020 SFF/MT when using the Intel GPU without a graphics card inserted. Signed-off-by: Leah Rowe <leah@libreboot.org>		2024-03-02 23:12:54 +00:00
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patches	coreboot/haswell: make IOMMU a runtime option	2024-03-02 23:12:54 +00:00
target.cfg	coreboot/default: update coreboot to January 2024	2024-01-25 15:41:15 +00:00