Change Details

VT-d support needs to be specifically enabled by coreboot. VT-x can be enabled in software with a 'wrmsr' command, but VT-d requires iommu to be enabled from coreboot and DMAR ACPI tables to be created. More information here : https://forums.puri.sm/t/clarification-on-librem-15-and-intel-me/1242/11?u=kakaroto More specifically, here are resources linked in that forum thread that are related to this : http://coreboot.coreboot.narkive.com/9qBoAnpM/vt-d-support1 https://firmware.intel.com/sites/default/files/resources/A_Tour_Beyond_BIOS_Using_Intel_VT-d_for_DMA_Protection.pdf https://mail.coreboot.org/pipermail/coreboot/2015-August/080245.html2 https://www.mail-archive.com/coreboot@coreboot.org/msg49420.html2 https://groups.google.com/forum/#!topic/qubes-users/bHQHjXqinaU2 Note that gm45, and ivybridge has support for VT-d, it just needs to be ported to skylake.

VT-d support needs to be specifically enabled by coreboot. VT-x can be enabled in software with a 'wrmsr' command, but VT-d requires iommu to be enabled from coreboot and DMAR ACPI tables to be created. More information here : https://forums.puri.sm/t/clarification-on-librem-15-and-intel-me/1242/11?u=kakaroto More specifically, here are resources linked in that forum thread that are related to this : http://coreboot.coreboot.narkive.com/9qBoAnpM/vt-d-support https://firmware.intel.com/sites/default/files/resources/A_Tour_Beyond_BIOS_Using_Intel_VT-d_for_DMA_Protection.pdf https://mail.coreboot.org/pipermail/coreboot/2015-August/080245.html https://www.mail-archive.com/coreboot@coreboot.org/msg49420.html https://groups.google.com/forum/#!topic/qubes-users/bHQHjXqinaU Note that gm45, and ivybridge has support for VT-d, it just needs to be ported to skylake.

VT-d support needs to be specifically enabled by coreboot. VT-x can be enabled in software with a 'wrmsr' command, but VT-d requires iommu to be enabled from coreboot and DMAR ACPI tables to be created. More information here : https://forums.puri.sm/t/clarification-on-librem-15-and-intel-me/1242/11?u=kakaroto More specifically, here are resources linked in that forum thread that are related to this : http://coreboot.coreboot.narkive.com/9qBoAnpM/vt-d-support1 https://firmware.intel.com/sites/default/files/resources/A_Tour_Beyond_BIOS_Using_Intel_VT-d_for_DMA_Protection.pdf https://mail.coreboot.org/pipermail/coreboot/2015-August/080245.html2 https://www.mail-archive.com/coreboot@coreboot.org/msg49420.html2 https://groups.google.com/forum/#!topic/qubes-users/bHQHjXqinaU2 Note that gm45, and ivybridge has support for VT-d, it just needs to be ported to skylake.