hot take: USB 3 / USB type-C sucks. speeds over 1 Gbps? many motherboards only route PCI-e 3 x1 to the USB controller so nope Ethernet alternate mode? doesn't exist Thunderbolt alternate mode? exists but Thunderbolt chipsets are fucking unobtainium without public docs
Aren't option ROMs and lack of enforced IOMMU (i.e. a policy where nothing functions until OS sets up IOMMU) part of the host spec for Thunderbolt?
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nope, Intel recommends using IOMMU https://firmware.intel.com/sites/default/files/Intel_WhitePaper_Using_IOMMU_for_DMA_Protection_in_UEFI.pdf …
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also, with Falcon Ridge and later you don't even need IOMMU, AFAICT http://lkml.iu.edu/hypermail/linux/kernel/1705.2/02534.html …
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