X370 Taichi - iommu groups & bluetooth
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=7863
Printed Date: 18 Jul 2025 at 10:15pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X370 Taichi - iommu groups & bluetooth
Posted By: Cablecutter
Subject: X370 Taichi - iommu groups & bluetooth
Date Posted: 27 Feb 2018 at 10:37pm
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" rel="nofollow - [URL=][/URL]Hi all, I am using the x370 Taichi in a unRaid build with a Windows 10 VM. As such, I would like to pass through certain hardware to the VM, but have had trouble with IOMMU groupings, even when enabling ACS override in Linux. The GPU has worked out fine, but the hardware below has given me trouble: #1) is the Bluetooth totally integrated with the wifi? Ie, wifi must be enabled in the bios to have Bluetooth. Passing through the wifi device should also pass through Bluetooth? Anyone know what the Bluetooth hardware would display when viewing iommu groupings in Linux? #2) I have a pcie USB plugged in that I would like to pass-through wholesale for PnP support and better compatibility. Unfortunately, no matter what I try with ACS enable / ACS override in Linux it remains grouped with a lot of other hardware including the Ethernet adapter and main USB which cannot be passed through. Anyone know how to get around this? VIA controller is the hardware in question: 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) [1b21:0612] 06:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller (rev 02) [1b21:1184] 07:00.0 PCI bridge: ASMedia Technology Inc. Device 1184 [1b21:1184] 08:01.0 PCI bridge: ASMedia Technology Inc. Device 1184 [1b21:1184] 08:03.0 PCI bridge: ASMedia Technology Inc. Device 1184 [1b21:1184] 08:05.0 PCI bridge: ASMedia Technology Inc. Device 1184 [1b21:1184] 08:07.0 PCI bridge: ASMedia Technology Inc. Device 1184 [8086:24fb] 09:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3168NGW [Stone Peak] (rev 10) [1106:3483] 0a:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01) |
Replies:
Posted By: JohnM
Date Posted: 28 Feb 2018 at 12:46am
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I don't know how many Linux users read these threads. I do know however that unRAID has a very supportive user group so you might get a more useful response if you ask there. ------------- ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110 |
Posted By: JohnM
Date Posted: 01 Mar 2018 at 9:35am
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The WiFi function is a PCIe v1.1 x1 device while the Bluetooth function is a USB v1.1 device. ------------- ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110 |
Posted By: Cablecutter
Date Posted: 02 Mar 2018 at 8:13pm
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Thanks John, Any idea which device might be the onboard Bluetooth? 
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Posted By: JohnM
Date Posted: 02 Mar 2018 at 8:31pm
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It won't be listed there. From the Linux command prompt try lsusb -t and lsusb -v ------------- ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110 |
Posted By: Cablecutter
Date Posted: 03 Mar 2018 at 5:05am
| Thanks John, think I found it listed as an Intel device. |
Posted By: Cablecutter
Date Posted: 03 Mar 2018 at 5:09am
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Also, may have found a workaround for the pcie iommu issue. This can be added to the link config to try to break out hardware: append pcie_acs_override=id:8086:24fb,1106:34B3 Haven't tried it yet. |
Posted By: Cablecutter
Date Posted: 06 Mar 2018 at 10:37pm
| Unfortunately, the specified ACS override did nothing. I've emailed ASRock support, but haven't received a response. |
Posted By: MisterJ
Date Posted: 06 Mar 2018 at 10:45pm
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Cablecutter, I would encourage you to also open an AMD Support Ticket. Enjoy, John.
------------- Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD |