这是一个创建于 798 天前的主题，其中的信息可能已经有所发展或是发生改变。
主板是 ASUS prime b350-plus ，系统是 PVE8
已经试过加内核参数pcie_acs_override=downstream
root@pve ~# uname -a Linux pve 6.2.16-15-pve #1 SMP PREEMPT_DYNAMIC PMX 6.2.16-15 (2023-09-28T13:53Z) x86_64 GNU/Linux root@pve ~# cat /etc/default/grub GRUB_DEFAULT=0 GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet iommu=pt pcie_acs_override=downstream" GRUB_CMDLINE_LINUX="" PCIe 插了 w2100 ，LSI SAS2308 。现想将 lsi sas 卡直通到 NAS 虚拟机，然而我的 iommu 将 USB 控制器、SATA 控制器、有线网卡、和 PCIe SAS 卡全分在了同一组:
root@pve ~# iommu.sh ... Group 13: [144d:a808] [R] 01:00.0 Non-Volatile memory controller NVMe SSD Controller SM981/PM981/PM983 Group 14: [1022:43bb] [R] 02:00.0 USB controller 300 Series Chipset USB 3.1 xHCI Controller USB: [1d6b:0002] Bus 001 Device 001 Linux Foundation 2.0 root hub USB: [1d6b:0003] Bus 002 Device 001 Linux Foundation 3.0 root hub [1022:43b7] 02:00.1 SATA controller 300 Series Chipset SATA Controller [1022:43b2] 02:00.2 PCI bridge Device 43b2 [1022:43b4] [R] 03:00.0 PCI bridge 300 Series Chipset PCIe Port [1022:43b4] 03:01.0 PCI bridge 300 Series Chipset PCIe Port [1022:43b4] 03:04.0 PCI bridge 300 Series Chipset PCIe Port [10ec:8168] [R] 04:00.0 Ethernet controller RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1b21:1080] [R] 05:00.0 PCI bridge ASM1083/1085 PCIe to PCI Bridge [1000:0087] [R] 07:00.0 Serial Attached SCSI controller SAS2308 PCI-Express Fusion-MPT SAS-2 Group 15: [1002:6608] [R] 08:00.0 VGA compatible controller Oland GL [FirePro W2100] [1002:aab0] [R] 08:00.1 Audio device Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series] ... 意味着我只能将 group 14 的设备全部直通到 nas ，这明显是不现实的。还有什么能将 SAS 控制器直通的方案吗？
3 条回复 2023-10-23 22:58:08 +08:00
 | 1 sky96111 OP 查阅过 https://vfio.blogspot.com/2014/08/iommu-groups-inside-and-out.html 的评论 这是 lspci -vvvnn https://pastebin.com/sqQdVZQ8 |
 | 2 20015jjw 2023-10-23 20:26:32 +08:00 via iPhone 这主板真的配吗.. |
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