dixyes · May 6, 2024 14:22 · dixyes · Jun 29, 2022
diff --git a/Readme.md b/Readme.md
diff --git a/etc_modprobe.d_kvm.conf b/etc_modprobe.d_kvm.conf
 # ignore unknown msrs for windows and disable warning
 options kvm ignore_msrs=1 report_ignored_msrs=0
 # see https://forum.level1techs.com/t/svm-avic-iommu-avic-improves-interrupt-performance-on-zen-2-etc-based-processors/155226
 options kvm_amd nested=1 avic=1 npt=1
diff --git a/etc_modprobe.d_vfio.conf b/etc_modprobe.d_vfio.conf
 # use vfio_pci stub for 6700s
 # I donot have a GA402RK, you can tell me what 6800s is
 options vfio_pci ids=1002:73ef,1002:ab28
diff --git a/hugepages.sh b/hugepages.sh
 #!/bin/sh

 # this number should be a little more than (memory in MB)/2
 # keep execute this script until it show
 #  HugePages_Total: 16400

 echo 16400 > /proc/sys/vm/nr_hugepages
 grep HugePages_Total /proc/meminfo
diff --git a/net.sh b/net.sh
 #!/bin/sh

 # this script creates bridge br0 and set ${link} master br0

 link=enp8s0f4u1u3

 ip link add name br0 type bridge
 ip link set "${link}" master br0
 ip link set br0 up
 ip link set "${link}" up

 systemctl start dhcpcd@br0
 systemctl stop dhcpcd@"${link}"

 iptables -P FORWARD ACCEPT
diff --git a/start.sh b/start.sh
 #!/bin/sh

 # this shell invokes a qemu command for passing through 6700s to guest
 # needs prepare hugepages and network
 # usb-host,vendorid=0x13d3,productid=0x3568 is MT7922 BT card, use your own (you may have an Intel one) or remove it
 # at GA402RJ bios ver 309, 6700s is at 03:00.0 and 03:00.1

 sudo qemu-system-x86_64 \
    -drive file=OVMF_CODE.fd,format=raw,if=pflash \
    -drive file=OVMF_VARS.fd,format=raw,if=pflash \
    -machine type=q35,accel=kvm,kernel-irqchip=split \
    -m 32768M \
    -mem-path /dev/hugepages \
    -mem-prealloc \
    -rtc clock=host,base=localtime \
    -smp cpus=16,cores=8,threads=2 \
    -global ICH9-LPC.disable_s3=1 \
    -global ICH9-LPC.disable_s4=1 \
    -nodefaults \
    -enable-kvm \
    -cpu host,kvm=off,+topoext,-hypervisor,hv_vapic,hv_relaxed,hv_spinlocks=0x1fff,hv_time,hv_vendor_id=12alphanum \
    -parallel none \
    -serial none \
    -net none \
    -vga none \
    -monitor stdio \
    -nographic \
    -device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=pcie.1 \
    -device vfio-pci,host=03:00.0,bus=pcie.1,addr=00.0,multifunction=on \
    -device vfio-pci,host=03:00.1,bus=pcie.1,addr=00.1 \
    -device virtio-rng-pci,bus=pcie.0 \
    -netdev bridge,id=net0 \
    -device virtio-net-pci,bus=pcie.0,netdev=net0 \
    -device qemu-xhci,id=xhci,bus=pcie.0 \
    -device usb-host,vendorid=0x13d3,productid=0x3568,bus=xhci.0 \
    -device virtio-scsi-pci-transitional \
    -device scsi-hd,drive=system \
    -drive file=/dev/disk/by-id/someid,format=raw,if=none,id=system,cache=none,aio=io_uring,id=system \

 exit $?
	# ignore unknown msrs for windows and disable warning
	options kvm ignore_msrs=1 report_ignored_msrs=0
	# see https://forum.level1techs.com/t/svm-avic-iommu-avic-improves-interrupt-performance-on-zen-2-etc-based-processors/155226
	options kvm_amd nested=1 avic=1 npt=1
	# use vfio_pci stub for 6700s
	# I donot have a GA402RK, you can tell me what 6800s is
	options vfio_pci ids=1002:73ef,1002:ab28
	#!/bin/sh

	# this number should be a little more than (memory in MB)/2
	# keep execute this script until it show
	# HugePages_Total: 16400

	echo 16400 > /proc/sys/vm/nr_hugepages
	grep HugePages_Total /proc/meminfo
	#!/bin/sh

	# this script creates bridge br0 and set ${link} master br0

	link=enp8s0f4u1u3

	ip link add name br0 type bridge
	ip link set "${link}" master br0
	ip link set br0 up
	ip link set "${link}" up

	systemctl start dhcpcd@br0
	systemctl stop dhcpcd@"${link}"

	iptables -P FORWARD ACCEPT
	#!/bin/sh

	# this shell invokes a qemu command for passing through 6700s to guest
	# needs prepare hugepages and network
	# usb-host,vendorid=0x13d3,productid=0x3568 is MT7922 BT card, use your own (you may have an Intel one) or remove it
	# at GA402RJ bios ver 309, 6700s is at 03:00.0 and 03:00.1

	sudo qemu-system-x86_64 \
	-drive file=OVMF_CODE.fd,format=raw,if=pflash \
	-drive file=OVMF_VARS.fd,format=raw,if=pflash \
	-machine type=q35,accel=kvm,kernel-irqchip=split \
	-m 32768M \
	-mem-path /dev/hugepages \
	-mem-prealloc \
	-rtc clock=host,base=localtime \
	-smp cpus=16,cores=8,threads=2 \
	-global ICH9-LPC.disable_s3=1 \
	-global ICH9-LPC.disable_s4=1 \
	-nodefaults \
	-enable-kvm \
	-cpu host,kvm=off,+topoext,-hypervisor,hv_vapic,hv_relaxed,hv_spinlocks=0x1fff,hv_time,hv_vendor_id=12alphanum \
	-parallel none \
	-serial none \
	-net none \
	-vga none \
	-monitor stdio \
	-nographic \
	-device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=pcie.1 \
	-device vfio-pci,host=03:00.0,bus=pcie.1,addr=00.0,multifunction=on \
	-device vfio-pci,host=03:00.1,bus=pcie.1,addr=00.1 \
	-device virtio-rng-pci,bus=pcie.0 \
	-netdev bridge,id=net0 \
	-device virtio-net-pci,bus=pcie.0,netdev=net0 \
	-device qemu-xhci,id=xhci,bus=pcie.0 \
	-device usb-host,vendorid=0x13d3,productid=0x3568,bus=xhci.0 \
	-device virtio-scsi-pci-transitional \
	-device scsi-hd,drive=system \
	-drive file=/dev/disk/by-id/someid,format=raw,if=none,id=system,cache=none,aio=io_uring,id=system \

	exit $?