打算搞一个家庭服务器，使用ubuntu 20.04 服务器作为宿主机，虚拟出一个win10跑游戏，虚拟另外一个跑freenas，主机配置含有集成显卡和独立显卡。安照一个显卡直通虚拟化教程做，推进中发现，我的独立显卡和主板其他硬件总在一个iommu group。虚拟机添加显卡硬件报错。不知道怎么把独立显卡从iommu组里分开。
我暂时看到解决办法
1 我在网上看到需要打 一个补丁 是这个内核补丁吗 ？Enable-overrides ACS
2 有没有专用虚拟化linux发行版本，比较简单配置？内核已经打了补丁的？
请各位赐教
下面是iommu分组情况
Group: 0 0000:00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge [1022:1452]
Group: 0 0000:00:01.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] [1022:15d3] Driver: pcieport
Group: 0 0000:00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] [1022:15d3] Driver: pcieport
Group: 0 0000:00:01.6 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] [1022:15d3] Driver: pcieport
Group: 0 0000:01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU106 [GeForce RTX 2060 Rev. A] [10de:1f08] (rev a1) Driver: vfio-pci
Group: 0 0000:01:00.1 Audio device [0403]: NVIDIA Corporation TU106 High Definition Audio Controller [10de:10f9] (rev a1) Driver: vfio-pci
Group: 0 0000:01:00.2 USB controller [0c03]: NVIDIA Corporation TU106 USB 3.1 Host Controller [10de:1ada] (rev a1) Driver: vfio-pci
Group: 0 0000:01:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU106 USB Type-C UCSI Controller [10de:1adb] (rev a1) Driver: vfio-pci
Group: 0 0000:02:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:43bc] (rev 02) Driver: xhci_hcd
Group: 0 0000:02:00.1 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] Device [1022:43b8] (rev 02) Driver: ahci
Group: 0 0000:02:00.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:43b3] (rev 02) Driver: pcieport
Group: 0 0000:03:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02) Driver: pcieport
Group: 0 0000:03:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02) Driver: pcieport
Group: 0 0000:03:07.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port [1022:43b4] (rev 02) Driver: pcieport
Group: 0 0000:05:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a) Driver: iwlwifi
Group: 0 0000:06:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15) Driver: r8169
Group: 0 0000:07:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961 [144d:a804] Driver: nvme
Group: 1 0000:00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge [1022:1452]
Group: 1 0000:00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A [1022:15db] Driver: pcieport
Group: 1 0000:00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B [1022:15dc] Driver: pcieport
Group: 1 0000:08:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c8) Driver: amdgpu
Group: 1 0000:08:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller [1002:15de] Driver: snd_hda_intel
Group: 1 0000:08:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor [1022:15df] Driver: ccp
Group: 1 0000:08:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1 [1022:15e0] Driver: xhci_hcd
Group: 1 0000:08:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1 [1022:15e1] Driver: xhci_hcd
Group: 1 0000:08:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller [1022:15e3] Driver: snd_hda_intel
Group: 1 0000:09:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 61) Driver: ahci
Group: 2 0000:00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 61) Driver: piix4_smbus
Group: 2 0000:00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
Group: 3 0000:00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0 [1022:15e8]
Group: 3 0000:00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1 [1022:15e9]
Group: 3 0000:00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2 [1022:15ea]
Group: 3 0000:00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3 [1022:15eb] Driver: k10temp
Group: 3 0000:00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4 [1022:15ec]
Group: 3 0000:00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5 [1022:15ed]
Group: 3 0000:00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6 [1022:15ee]
Group: 3 0000:00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7 [1022:15ef]
下面是lspci -k 独立显卡部分输出
01:00.0 VGA compatible controller: NVIDIA Corporation TU106 [GeForce RTX 2060 Rev. A] (rev a1)
Subsystem: ASUSTeK Computer Inc. TU106 [GeForce RTX 2060 Rev. A]
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau
01:00.1 Audio device: NVIDIA Corporation TU106 High Definition Audio Controller (rev a1)
Subsystem: ASUSTeK Computer Inc. TU106 High Definition Audio Controller
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel
01:00.2 USB controller: NVIDIA Corporation TU106 USB 3.1 Host Controller (rev a1)
Subsystem: ASUSTeK Computer Inc. TU106 USB 3.1 Host Controller
Kernel driver in use: vfio-pci
Kernel modules: xhci_pci
01:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU106 USB Type-C UCSI Controller (rev a1)
Subsystem: ASUSTeK Computer Inc. TU106 USB Type-C UCSI Controller
Kernel driver in use: vfio-pci
Kernel modules: i2c_nvidia_gpu
