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--- virt:zfs_kvm_debian8 [2016/04/11 14:40]
tschulz [Blacklist Video Drivers]
+++ virt:zfs_kvm_debian8 [2016/04/20 14:17]
tschulz [Important Bits]
@@ Line 22: / Line 22: @@
 ==== Blacklist Video Drivers====
+  * If a driver is using a pci device that you want to passthough you might want to blacklist the driver, although you can try unbinding the driver before you tell vfio to claim the device
   * driver name is found be running: <file>lspci -vn | less -p VGA
-</file>  Look for "Kernel driver in use:"
+</file>  Look for "**Kernel driver in use:**"<file bash /etc/modprobe.d/blacklist.conf>
-<file bash /etc/modprobe.d/blacklist.conf>
 ...
 blacklist mgag200
@@ Line 31: / Line 31: @@
 </file>
+==== Setup Bridged Networking ====
+<file bash /etc/network/interfaces>
+...
+auto eth0
+iface eth0 inet manual
+auto br0
+iface br0 inet dhcp
+        bridge_ports eth0
+...
+</file>
+===== Install Kernel and updates from Backports =====
+  * add the following line to /etc/apt/sources.list<file>deb http://ftp.debian.org/debian jessie-backports main</file>
+  * Update package list and update packages<file>apt-get update
+apt-get -t jessie-backports upgrade</file>
+===== Build and Install ZFS on Linux (deb method) =====
+  * Download current release from [[https://github.com/zfsonlinux/zfs/releases]].  You will need **spl-x.x.x.x.tar.gz** and **zfs-x.x.x.x.tar.gz**
+  * Install dependency packages<file>apt-get install build-essential gawk alien fakeroot linux-headers-$(uname -r) zlib1g-dev uuid-dev libblkid-dev libselinux-dev parted lsscsi
+</file>
+  * Build and install spl <file>tar xvzf spl-x.x.x.x.tar.gz
+cd spl-x.x.x.x
+./configure
+make deb-utils deb-kmod
+dpkg -i *.deb</file>
+  * Build and install zfs <file>tar xvzf zfs-x.x.x.x.tar.gz
+cd zfs-x.x.x.x
+./configure
+make deb-utils deb-kmod
+dpkg -i *.deb</file>
+===== Bind PCI device to VFIO =====
+  - To grab the hexadecimal PCI id. run<file>lspci -nv</file>
+  - e.g. for <file>
+:00.0 0300: 10de:0322 (rev a1) (prog-if 00 [VGA controller])</file> the PCI ID would be **10de:0322**.  The slot ID/address is **07:00.0**
+  - Then take the slot address in the previous example ***07:00.0** and prepend "0000:" so that you have something like **0000:07:00.0**.  Then execute the following command to unbind the current driver<file>
+echo 0000:07:00.0 > /sys/bus/pci/devices/0000:07:00.0/driver/unbind
+</file>
+  - Then take the PCI ID in the previous example **10de:0322** and replace the ":" with a space then run the following command <file>
+echo 102b 0522 > /sys/bus/pci/drivers/vfio-pci/new_id
+</file>
+===== USB Passthough =====
+  * If you are passing a physical video card to a VM, you will need to also pass usb input devices to the VM since the VM will not have a SDL or Spice virtual display.
+  * This is done through USB passthrough.
+  * To find the USB id's to pass through run <file>lsusb | grep -v "root hub"</file>
+  * This will give you something like this<file>Bus 005 Device 002: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse
+Bus 003 Device 003: ID 0557:2205 ATEN International Co., Ltd
+Bus 003 Device 002: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub</file>
+  * What we want is the hexadecimal ID **ffff:ffff**
+  * then this to pass the usb device to the vm<file>-usbdevice host:ffff:ffff</file>
+===== Example kvm script =====
+<file bash>
+#!/bin/sh
+echo 0000:07:00.0 > /sys/bus/pci/devices/0000:07:00.0/driver/unbind
+echo 102b 0522 > /sys/bus/pci/drivers/vfio-pci/new_id
+qemu-system-x86_64 -enable-kvm -M q35 -m 2048 \
+-cpu host -smp 4,sockets=1,cores=4,threads=1 \
+-net nic,model=virtio,vlan=0 -net tap,vlan=0,ifname=tap0,script=/etc/qemu-ifup \
+-device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
+-device vfio-pci,host=07:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \
+-drive file=/vol1/iso/bie2k8r2411.iso,index=2,media=cdrom \
+-drive file=/vol1/iso/virtio-win.iso,index=3,media=cdrom \
+-drive file=/vol1/hd-img/win2kr3.qed,format=qed,if=virtio,cache=writeback,index=1 \
+-usb -usbdevice host:0557:2205 \
+-boot menu=on \
+-vga none
+</file>
+==== Important Bits ====
+  *  The following is used to tell kvm to use the pci video card for display not a SDL or Spice canvas<file>-vga none</file>
+  * The following is used to tell kvm to setup bridged networking<file>-net nic,model=virtio,vlan=0 -net tap,vlan=0,ifname=tap0,script=/etc/qemu-ifup</file>
+  * The following is used to add a pcie bridge to the vm (needed for pci passthrough)<file>-device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1</file>
+  * The following adds ICH9 emulation that enables smoother pci passthrough<file>-M q35</file>
+  * The following unbinds the current driver and tells vfio to claim the pci device<file>echo 0000:07:00.0 > /sys/bus/pci/devices/0000:07:00.0/driver/unbind
+echo 102b 0522 > /sys/bus/pci/drivers/vfio-pci/new_id</file>
+  * The following passes a video card to the vm and binds it to the pcie bridge<file>-device vfio-pci,host=07:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \</file>
+  * The following passes a usb hub to the vm so that keyboard and mouse input can be used with the physical display<file>-usbdevice host:0557:2205</file>
+  * Add Spice Display<file-vga qxl -spice port=5900,addr=127.0.0.1,disable-ticketing></file>

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