Upgraded to 6.6, I can no longer pass through my USB controller to my VM (which means no hotplugging) as the IOMMU group now stays locked no matter what ACS patch override mode I chose. My NVME drive is now in the same group as my PCIE usb card (1106:3483), which is a huge problem.
I had an older bios before the upgrade, updated the bios once I saw the iommu groups are completely borked, no change.
Anyone have any ideas how to remedy this?
# for iommu_group in $(find /sys/kernel/iommu_groups/ -maxdepth 1 -mindepth 1 -type d);do echo "IOMMU group $(basename "$iommu_group")"; for device in $(\ls -1 "$iommu_group"/devices/); do if [[ -e "$iommu_group"/devices/"$device"/reset ]]; then echo -n "[RESET]"; fi; echo -n $'\t';lspci -nns "$device"; done; done
IOMMU group 7
[RESET] 00:1b.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #19 [8086:a342] (rev f0)
[RESET] 00:1b.3 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #20 [8086:a343] (rev f0)
[RESET] 00:1b.4 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 [8086:a32c] (rev f0)
[RESET] 02:00.0 USB controller [0c03]: VIA Technologies, Inc. VL805 USB 3.0 Host Controller [1106:3483] (rev 01)
[RESET] 03:00.0 PCI bridge [0604]: Integrated Technology Express, Inc. IT8892E PCIe to PCI Bridge [1283:8892] (rev 71)
[RESET] 05:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961 [144d:a804]
IOMMU group 5
00:16.0 Communication controller [0780]: Intel Corporation Cannon Lake PCH HECI Controller [8086:a360] (rev 10)
IOMMU group 3
00:12.0 Signal processing controller [1180]: Intel Corporation Cannon Lake PCH Thermal Controller [8086:a379] (rev 10)
IOMMU group 1
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 07)
[RESET] 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X] [1002:67df] (rev e7)
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 580] [1002:aaf0]
IOMMU group 8
[RESET] 00:1c.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #5 [8086:a33c] (rev f0)
[RESET] 06:00.0 Ethernet controller [0200]: Intel Corporation 82571EB/82571GB Gigabit Ethernet Controller D0/D1 (copper applications) [8086:105e] (rev 06)
[RESET] 06:00.1 Ethernet controller [0200]: Intel Corporation 82571EB/82571GB Gigabit Ethernet Controller D0/D1 (copper applications) [8086:105e] (rev 06)
IOMMU group 6
00:17.0 SATA controller [0106]: Intel Corporation Cannon Lake PCH SATA AHCI Controller [8086:a352] (rev 10)
IOMMU group 4
00:14.0 USB controller [0c03]: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller [8086:a36d] (rev 10)
00:14.2 RAM memory [0500]: Intel Corporation Cannon Lake PCH Shared SRAM [8086:a36f] (rev 10)
IOMMU group 2
[RESET] 00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 630 (Desktop) [8086:3e92]
IOMMU group 10
00:1f.0 ISA bridge [0601]: Intel Corporation H370 Chipset LPC/eSPI Controller [8086:a304] (rev 10)
00:1f.3 Audio device [0403]: Intel Corporation Cannon Lake PCH cAVS [8086:a348] (rev 10)
00:1f.4 SMBus [0c05]: Intel Corporation Cannon Lake PCH SMBus Controller [8086:a323] (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller [8086:a324] (rev 10)
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (7) I219-V [8086:15bc] (rev 10)
IOMMU group 0
00:00.0 Host bridge [0600]: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers [8086:3ec2] (rev 07)
IOMMU group 9
[RESET] 00:1d.0 PCI bridge [0604]: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 [8086:a330] (rev f0)
[RESET] 07:00.0 Non-Volatile memory controller [0108]: Intel Corporation SSD 600P Series [8086:f1a5] (rev 03)
dmserver-diagnostics-20180925-2237.zip