ms4sman Posted November 4, 2017 Share Posted November 4, 2017 I bought a 4-port USB 3.0 PCIe card with the intention of passing it through to my Windows 10 VM for some proper USB ports. However, when plugged into a PCIe x1 slot, it does not appear in it's own IOMMU group. I have also tried enabling the ACS patch and the groupings are different, but the device still doesn't appear in its own group. This being the case, am I just SOL, or is there any other recourse I can take? My BIOS is running the latest version available from the manufacturer. I have tried different PCIe x1 slots to no avail as well. Below is the IOMMU groupings before and after the ACS patch, and the relevant hardware. It's also worth noting that I am able to pass GPUs through to my VMs just fine. I just need to isolate the USB card to its own group so I can stub it and pass it through as well. If you need any more info just ask, I appreciate any help you can provide, but I have a feeling I'm out of luck and I'm ready to accept that. Just thought I'd get a second opinion. IOMMU groups w/o ACS: IOMMU group 0: [1022:1452] 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 1: [1022:1453] 00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453 IOMMU group 2: [1022:1452] 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 3: [1022:1452] 00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 4: [1022:1453] 00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453 IOMMU group 5: [1022:1452] 00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 6: [1022:1452] 00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge [1022:1454] 00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B [1022:145a] 11:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 145a [1022:1456] 11:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor [1022:145c] 11:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) USB 3.0 Host Controller IOMMU group 7: [1022:1452] 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge [1022:1454] 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B [1022:1455] 12:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 1455 [1022:7901] 12:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51) [1022:1457] 12:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller IOMMU group 8: [1022:790b] 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59) [1022:790e] 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) IOMMU group 9: [1022:1460] 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0 [1022:1461] 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1 [1022:1462] 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2 [1022:1463] 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3 [1022:1464] 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4 [1022:1465] 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5 [1022:1466] 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric Device 18h Function 6 [1022:1467] 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7 IOMMU group 10: [1022:43b9] 03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43b9 (rev 02) [1022:43b5] 03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43b5 (rev 02) [1022:43b0] 03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b0 (rev 02) [1022:43b4] 04:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1b21:1343] 05:00.0 USB controller: ASMedia Technology Inc. Device 1343 [8086:1539] 06:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03) [1969:e0b1] 07:00.0 Ethernet controller: Qualcomm Atheros Killer E2500 Gigabit Ethernet Controller (rev 10) [1002:6771] 08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XTX [Radeon HD 8490 / R5 235X OEM] [1002:aa98] 08:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Caicos HDMI Audio [Radeon HD 6450 / 7450/8450/8490 OEM / R5 230/235/235X OEM] ===> [1912:0014] 09:00.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03) <=== IOMMU group 11: [10de:1b80] 0b:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1080] (rev a1) [10de:10f0] 0b:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1) IOMMU groups w/ ACS: IOMMU group 0: [1022:1452] 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 1: [1022:1453] 00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453 IOMMU group 2: [1022:1452] 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 3: [1022:1452] 00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 4: [1022:1453] 00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453 IOMMU group 5: [1022:1452] 00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 6: [1022:1452] 00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 7: [1022:1454] 00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B IOMMU group 8: [1022:1452] 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge IOMMU group 9: [1022:1454] 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B IOMMU group 10: [1022:790b] 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59) [1022:790e] 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) IOMMU group 11: [1022:1460] 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0 [1022:1461] 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1 [1022:1462] 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2 [1022:1463] 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3 [1022:1464] 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4 [1022:1465] 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5 [1022:1466] 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric Device 18h Function 6 [1022:1467] 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7 IOMMU group 12: [1022:43b9] 03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43b9 (rev 02) [1022:43b5] 03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43b5 (rev 02) [1022:43b0] 03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b0 (rev 02) [1022:43b4] 04:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1022:43b4] 04:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02) [1b21:1343] 05:00.0 USB controller: ASMedia Technology Inc. Device 1343 [8086:1539] 06:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03) [1969:e0b1] 07:00.0 Ethernet controller: Qualcomm Atheros Killer E2500 Gigabit Ethernet Controller (rev 10) [1002:6771] 08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XTX [Radeon HD 8490 / R5 235X OEM] [1002:aa98] 08:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Caicos HDMI Audio [Radeon HD 6450 / 7450/8450/8490 OEM / R5 230/235/235X OEM] ===> [1912:0014] 09:00.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03) <=== IOMMU group 13: [10de:1b80] 0b:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1080] (rev a1) [10de:10f0] 0b:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1) IOMMU group 14: [1022:145a] 11:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 145a [1022:1456] 11:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor [1022:145c] 11:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) USB 3.0 Host Controller IOMMU group 15: [1022:1455] 12:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 1455 [1022:7901] 12:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51) [1022:1457] 12:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller Hardware: Ryzen 7 1700 Processor Gigabyte AX370 Gaming K7 Motherboard Mailiya PCI-E to USB 3.0 4 Port PCI Express Expansion Card Link to comment
Squid Posted November 4, 2017 Share Posted November 4, 2017 Disable everything in the bios that's not required. Doubt it'll make a difference. Also try putting the card into the x16 slots if you still have them available Link to comment
ms4sman Posted November 5, 2017 Author Share Posted November 5, 2017 Hi Squid, thanks for replying. So here's the deal. My motherboard has 3 PCIe x16 slots, but they share lanes so they aren't all actually x16, but I'll call them that because they are full size. And it has 3 PCIe x1 slots. It seems that the top two x16 slots get isolated to their own IOMMU group, but the third does not, and the x1 slots also do not. I can deal with just two isolate-able slots, I'll use them for my GTX 1080 and the USB 3.0 card if I have to. But ideally I had hoped to also have a GTX 650 Ti that could also be isolated to its own slot as well, as I would like to pass this through to a separate VM. That said, I can deal without that if that's the situation I'm faced with, and it seems it is, if I'm understanding things right. Does it sound like this is just how things are, or is there any chance that a future BIOS update would fix the groupings further, or is there anything more I can do now? Thanks so much for your help! Link to comment
Squid Posted November 5, 2017 Share Posted November 5, 2017 My findings thus far on IOMMU groupings with my particular motherboard / components. Yours and others experiences may differ BIOS updates don't change groupings CPU changes can change groupings on the same motherboard. Different components in the same slot may change what group its in. IE: I have two different HBA's available to use. In the same slot, they wind up in different groups on the same CPU / motherboard. Because ultimately I've never had to deal with having a passthrough not working in an isolated group either natively or via ACS override, I'm not the best to suggest any other remedies (like stubbing, etc) Link to comment
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