On Sat, 12 Nov 2016 07:17:02 +0300 Имя Фамилия <[email protected]> wrote:
> Thank you for your quick response! However, I'm afraid I don't understand. > I already updated the BIOS to 1201, the most recent version. > I found this spreadsheet: > https://docs.google.com/spreadsheets/d/1LnGpTrXalwGVNy0PWJDURhyxa3sgqkGXmvNCIvIMenk/edit#gid=0 > > Someone already got it working with the exact same hardware I have. > Are you saying my motherboard is defective? I'm saying that without the motherboard firmware providing a DMAR table, it is not possible for the OS to enable VT-d support. I can't guess whether your motherboard is defective, but it's a motherboard/firmware issue preventing VT-d from being enabled. Thanks, Alex > >Saturday, November 12, 2016 3:35 AM UTC from Alex Williamson > ><[email protected]>: > > > >On Sat, 12 Nov 2016 06:18:08 +0300 > >Имя Фамилия < [email protected] > wrote: > > > >> I'm trying to get GPU passthrough to work, but haven't gotten very far. > >> I'm losing my mind trying to figure out what could be the problem. I'm > >> working with a 5820k and an ASUS X99-A II, both of which support IOMMU. I > >> enabled VT-d in the UEFI settings and added intel_iommu=on to GRUB. > >> > >> I restart, and when I cat /proc/cmdline I can see the option is there > >> there but it had no effect. There's nothing under > >> /sys/kernel/iommu_groups, there is no iommu_group folder under > >> /sys/bus/pci/devices/MYBUS/, and when I grep dmesg I get a generic "DMAR: > >> IOMMU enabled" messages and a warning that I don't have AMD IOMMUv2 > >> functionality but that's it. > >> > >> dmesg contents: http://ptpb.pw/ZpcL > >> > >> Any ideas what I'm missing? > > > >Time to look for a BIOS update. These are the ACPI tables provided by > >your motherboard firmware: > > > >[ 0.000000] ACPI: RSDP 0x00000000BB258000 000024 (v02 ALASKA) > >[ 0.000000] ACPI: XSDT 0x00000000BB258090 00009C (v01 ALASKA A M I > >01072009 AMI 00010013) > >[ 0.000000] ACPI: FACP 0x00000000BB28E828 00010C (v05 ALASKA A M I > >01072009 AMI 00010013) > >[ 0.000000] ACPI: DSDT 0x00000000BB2581C8 03665C (v02 ALASKA A M I > >01072009 INTL 20091013) > >[ 0.000000] ACPI: FACS 0x00000000BD4A5F80 000040 > >[ 0.000000] ACPI: APIC 0x00000000BB28E938 000100 (v03 ALASKA A M I > >01072009 AMI 00010013) > >[ 0.000000] ACPI: FPDT 0x00000000BB28EA38 000044 (v01 ALASKA A M I > >01072009 AMI 00010013) > >[ 0.000000] ACPI: FIDT 0x00000000BB28EA80 00009C (v01 ALASKA A M I > >01072009 AMI 00010013) > >[ 0.000000] ACPI: MCFG 0x00000000BB28EB20 00003C (v01 ALASKA A M I > >01072009 MSFT 00000097) > >[ 0.000000] ACPI: ASF! 0x00000000BB2A5400 0000A0 (v32 INTEL HCG > >00000001 TFSM 000F4240) > >[ 0.000000] ACPI: SSDT 0x00000000BB28EBB8 00036D (v01 SataRe SataTabl > >00001000 INTL 20120913) > >[ 0.000000] ACPI: UEFI 0x00000000BB28EF28 000042 (v01 ALASKA A M I > >01072009 00000000) > >[ 0.000000] ACPI: HPET 0x00000000BB28EF70 000038 (v01 ALASKA A M I > >00000001 INTL 20091013) > >[ 0.000000] ACPI: MSCT 0x00000000BB28EFA8 000090 (v01 ALASKA A M I > >00000001 INTL 20091013) > >[ 0.000000] ACPI: SLIT 0x00000000BB28F038 00002D (v01 ALASKA A M I > >00000001 INTL 20091013) > >[ 0.000000] ACPI: SRAT 0x00000000BB28F068 001158 (v03 ALASKA A M I > >00000001 INTL 20091013) > >[ 0.000000] ACPI: WDDT 0x00000000BB2901C0 000040 (v01 ALASKA A M I > >00000000 INTL 20091013) > >[ 0.000000] ACPI: SSDT 0x00000000BB290200 0151C1 (v02 ALASKA PmMgt > >00000001 INTL 20120913) > >[ 0.000000] ACPI: BGRT 0x00000000BB2A53C8 000038 (v01 ALASKA A M I > >01072009 AMI 00010013) > > > >The problem is that there's no DMAR table. DMAR describes the VT-d > >configuration and is required to enable intel_iommu. If you have a > >VT-d setting in the BIOS enabled, you might try saving and exiting the > >BIOS, then doing a cold power cycle to make it take effect. Otherwise > >look for a BIOS update, contact Asus, or return it. Regarding the > >"IOMMU enabled" line in dmesg: > > > >http://vfio.blogspot.com/2016/09/intel-iommu-enabled-it-doesnt-mean-what.html > > > >Good luck, > >Alex > _______________________________________________ vfio-users mailing list [email protected] https://www.redhat.com/mailman/listinfo/vfio-users
