Changes between Initial Version and Version 1 of Xen_Lab7

Timestamp:

Oct 1, 2009, 4:54:02 PM (15 years ago)

Author:

rider

Comment:

--

Xen_Lab7

@@ +1 @@
+[[PageOutline]]
+{{{
+#!html
+<h1 style="text-align: center; color: blue">實作七：Xen PCI Passthrough 操作</h1>
+}}}
+----
+= 【Step 1: 連線到遠端主機】 =
+'''# 以下兩種連線方式擇一使用.''' [[BR]]
+rider@cloud:~$ ssh 140.xxx.xxx.xxx [[BR]]
+rider@cloud:~$ vncviewer 140.xxx.xxx.xxx [[BR]]
+----
+= 【Step 2: 產生一台虛擬機器】 =
+'''# 設定你想要怎樣規格的虛擬機器.''' [[BR]]
+rider@cloud:~$ sudo vim /etc/xen-tools/xen-tools.conf [[BR]]
+{{{
+#!sh
+dir = /home
+install-method = debootstrap
+size   = 8Gb      # Disk image size.
+memory = 1024Mb    # Memory size
+swap   = 128Mb    # Swap size
+fs     = ext3     # use the EXT3 filesystem for the disk image.
+dist   = hardy    # Default distribution to install. ---> For CUDA Support (Ubuntu 8.0.4)
+image  = sparse   # Specify sparse vs. full disk images.
+gateway   = 140.XXX.XXX.XXX
+netmask   = 255.255.255.0
+broadcast = 140.XXX.XXX.XXX
+kernel      = /boot/vmlinuz-`uname -r`
+initrd      = /boot/initrd.img-`uname -r`
+mirror = http://gb.archive.ubuntu.com/ubuntu/
+ext3_options   = noatime,nodiratime,errors=remount-ro
+ext2_options   = noatime,nodiratime,errors=remount-ro
+xfs_options    = defaults
+reiser_options = defaults
+}}}
+rider@cloud:~$ sudo xen-create-image --hostname nvidia --ip 140.XXX.XXX.XXX [[BR]]
+----
+= 【Step 3: 查看你的顯卡資訊】 =
+rider@cloud:~$ lspci -vv
+{{{
+01:00.0 VGA compatible controller: nVidia Corporation GeForce 9800 GT (rev a2)
+        Subsystem: ASUSTeK Computer Inc. Device 82a0
+        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
+        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
+        Latency: 0
+        Interrupt: pin A routed to IRQ 16
+        Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
+        Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
+        Region 3: Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
+        Region 5: I/O ports at dc80 [size=128]
+        [virtual] Expansion ROM at fea00000 [disabled] [size=128K]
+        Capabilities: <access denied>
+        Kernel driver in use: pciback
+        Kernel modules: nvidia, nvidiafb
+}}}
+----
+= 【Step 4: PCI Frontend Configuration 設定你的 DomU 】 =
+rider@cloud:~$ sudo vim /etc/xen/nvidia.cfg [[BR]]
+{{{
+#!sh
+kernel      = '/boot/vmlinuz-2.6.22.9'
+ramdisk     = '/boot/initrd.img-2.6.22.9'
+ 
+memory      = '1024'
+vcpus       = '4'
+
+# 配置你的 PCIE 顯示卡
+pci         = ['01:00.0']
+
+root        = '/dev/sda2 ro'
+disk        = [
+                  'file:/home/domains/nvidia/disk.img,sda2,w',
+                  'file:/home/domains/nvidia/swap.img,sda1,w',
+              ]
+name        = 'nvidia'
+ 
+#
+#  Networking
+#
+vif         = [ 'ip=140.xxx.xxx.xxx,mac=00:16:3E:AA:70:5C' ]
+ 
+#
+#  Behaviour
+#
+on_poweroff = 'destroy'
+on_reboot   = 'restart'
+on_crash    = 'restart'
+}}}
+----
+= 【Step 5: PCI Backend Configuration 設定你的 Dom0 】 =
+rider@cloud:~$ sudo su - [[BR]]
+'''# Hide the device from dom0 so pciback can take control.''' [[BR]]
+root@cloud:~$ echo -n "0000:01:00.0" > /sys/bus/pci/drivers/nvidia/unbind [[BR]]
+
+'''# Give the dev_ids to pciback, and give it a new slot then bind.''' [[BR]]
+root@cloud:~$ echo -n "0000:01:00.0" > /sys/bus/pci/drivers/pciback/new_slot [[BR]]
+root@cloud:~$ echo -n "0000:01:00.0" > /sys/bus/pci/drivers/pciback/bind [[BR]]
+
+root@cloud:~$ cat /sys/bus/pci/drivers/pciback/slots [[BR]]
+{{{ 
+0000:01:00.0
+}}}
+
+'''# Caution: Make sure that the device is not controlled by any driver: there should be no driver symlink for nvidia.''' [[BR]] 
+{{{
+PATH: /sys/bus/pci/devices/0000:01:00.0/
+driver -> ../../../../bus/pci/drivers/nvidia ---> This symlink shouldn't exist.
+}}}
+----
+= 【Step 6: 硬體直接存取設定】 =
+
+==== Permissive Flag ====
+
+rider@cloud:~$ sudo vim /etc/xen/xend-pci-permissive.sxp [[BR]]
+{{{
+#!sh
+(unconstrained_dev_ids
+     #('0123:4567:89AB:CDEF')
+     ('0000:01:00.0')
+)
+}}}
+
+==== User-space Quirks ====
+
+rider@cloud:~$ sudo vim /etc/xen/xend-pci-quirks.sxp [[BR]]
+{{{
+#!sh
+(pci_ids
+   # Entries are formated as follows:  
+   #     <vendor>:<device>[:<subvendor>:<subdevice>]
+
+   ('10de:0605'   # NVIDIA 9800GT
+   )
+)
+}}}
+----
+= 【Step 7: 啟動並登入你的虛擬機器 DomU 】 =
+'''說明: 用 root 免密碼先登入,然後建立自己的帳號. 改用自己的帳號登入(亦可用 root 登入 , 不新建帳號 ):''' [[BR]]
+@ Dom0 [[BR]]
+rider@cloud:~$ sudo xm create -c nvidia.cfg [[BR]]
+
+@ DomU [[BR]]
+root@nvidia:~# adduser username [[BR]]
+root@nvidia:~# vim /etc/sudoers [[BR]]
+{{{
+#!sh
+username    ALL=(ALL) ALL
+}}}
+----
+= 【Step 8: 設定你的 DomU 基本環境】 =
+'''# 設定 locales (系統語系)''' [[BR]]
+rider@nvidia:~$ sudo vim /etc/profile [[BR]]
+{{{
+# Locale
+export LANGUAGE="en_US.UTF-8"
+export LC_ALL="en_US.UTF-8"
+export LANG="en_US.UTF-8"
+}}}
+rider@nvidia:~$ source /etc/profile [[BR]]
+rider@nvidia:~$ sudo dpkg-reconfigure locales [[BR]]
+'''# 更新 PCI ID Database''' [[BR]]
+rider@nvidia:~$ sudo apt-get update [[BR]]
+rider@nvidia:~$ sudo apt-get install wget [[BR]]
+rider@nvidia:~$ sudo update-pciids [[BR]]
+'''# 查看顯卡資訊有無正常顯示''' [[BR]]
+rider@nvidia:~$ lspci [[BR]]
+{{{
+00:00.0 VGA compatible controller: nVidia Corporation GeForce 9800 GT (rev a2)
+}}}
+'''# 查看顯卡資源有無順利分配到 DomU''' [[BR]]
+rider@nvidia:~$ dmesg | grep pci
+{{{
+pcifront pci-0: Installing PCI frontend
+pcifront pci-0: Creating PCI Frontend Bus 0000:00
+pciback 0000:00:00.0: probing...
+pciback: pcistub_init_devices_late
+}}}
+----