PVE硬件直通之强制IOMMU分组

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/* 打印pci设备详细信息*/
lspci -vv
/* 找到SATA controller 段落*/
16:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43eb (prog-if 01 [AHCI 1.0])
        Subsystem: ASMedia Technology Inc. Device 1062
        Flags: bus master, fast devsel, latency 0, IRQ 34, IOMMU group 8
        Memory at fcf80000 (32-bit, non-prefetchable) [size=128K]
        Expansion ROM at fcf00000 [disabled] [size=512K]
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Power Management version 3
        Capabilities: [80] Express Legacy Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        /* 检查是否存在Capabilities: Access Control Services*/
        Capabilities: [2a0] Access Control Services
        Kernel driver in use: vfio-pci
        Kernel modules: ahci

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vi /etc/modules

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

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vi /etc/default/grub

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
# 在原始GRUB_CMDLINE_LINUX_DEFAULT后加入amd_iommu=on pcie_acs_override=downstream,multifunction
# 若是intel的cpu则将amd_iommu改为intel_iommu即可
# GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on pcie_acs_override=downstream,multifunction"
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=false
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

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# 更新grub引导
update-grub
# 更新ramfs
update-initramfs -u -k all

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# 更新内核
dpkg -i *.deb