Have you verified that the Sapphire H61 "IOMMU enable" option is really working?
On Tue, Feb 23, 2021 at 2:26 PM ludphaeus via coreboot <coreboot@coreboot.org> wrote: > > Hi > I am trying to port a Haswell laptop and I would want it to have IOMMU > support. My chipset supports VT-d but CPU does not. The official info from > Intel says the PC needs chipset, CPU and BIOS to support VT-d to use IOMMU. I > think this is not true because I saw some boards in board status have working > IOMMU with no VT-d support in chipset but with coreboot advertising DMAR > table to OS and CPU with VT-d support. Sapphire H61 is a example of this. But > other H61 coreboot boards such as P8H61-M LX that have CPU without VT-d > advertise no IOMMU capability. So what is really required for full IOMMU ? Do > I have chance for full, working IOMMU on this laptop? > Thanks, > Lud > > > _______________________________________________ > coreboot mailing list -- coreboot@coreboot.org > To unsubscribe send an email to coreboot-le...@coreboot.org -- Best regards, Mike Banon Open Source Community Manager of 3mdeb - https://3mdeb.com/ _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
