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@jdub | |||||
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Should coreboot/u-boot do this as early as possible too?
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Matthew Garrett
@mjg59
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28. sij |
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My patch to disable PCI device DMA in early boot to avoid gaps in IOMMU coverage just got merged to mainline, so here's a writeup of it: mjg59.dreamwidth.org/54433.html
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Matthew Garrett
@mjg59
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29. sij |
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It's sort of complicated - coreboot itself is what would have to enable it, but coreboot has no idea what payload is going to be launched (eg, if it's SeaBIOS then something's going to have to remove the state again)
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