Le blog de Jean David TECHER, un Réunionnais à Saint-Priest/Lyon

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This is a simple copy/paste for a mail I sent to Xen community a couple day ago (see http://www.gossamer-threads.com/lists/xen/users/276234. Now I can start my windows 7 domU with more than 3GB. I tested it with 8GB and it works fine!

Update #3 (2013/04/07) Now I can start both Linux and Windows domUs with more than RAM over 3GB . It shouldn't be the most elegant way to do that but it works.

Update #2 (2013/04/06) I update the section Build studom so Linux domU can start...I noticed that I had to go this way else my Linux domUs couldn't start while Windows 7 could start fine

Update #1 (2013/04/06) I update the section Build studom since now there is a quick workaround to built it successfully

Download Xen sources

rev=267773
hg clone -r $rev http://xenbits.xensource.com/staging/xen-unstable.hg/ xen-unstable.hg-rev-XXXXX
cd xen-unstable.hg-rev-XXXXX

Configure

CURL=$(which curl-config) XML=$(which xml2-config) ./configure

Make a first build for tools and cleanup the folder

• Make a first build for tools

  cd tools
  make -j4

• Clean up the folder

  make clean

Download and apply the patches

• Download and apply the 1st patch

  cd qemu-xen-dir-remote/
  wget "http://marc.info/?l=qemu-devel&m=136177475215360&q=raw" -O - | patch -p1

• Download and apply the 2nd patch

  cd ../..
  wget ftp://ftp.enjellic.com/pub/xen/xen-4.2.0.ati-passthrough.patch -O - | sed -e "s:qemu-xen-traditional:qemu-xen-traditional-dir-remote:g" | patch -p1

• We have to modify tools/qemu-xen-traditional-dir-remote/hw/pt-graphics.c file so we can run build stubdom

  for i in 0 3;do sed -i "s:^.*iopl(${i});$://iopl(${i});:g" tools/qemu-xen-traditional-dir-remote/hw/pt-graphics.c;done

  NOTICE if this workaround is not apply then you should have this error

  /opt/tmp/xen-unstable.hg-rev-XXXXX/stubdom/mini-os-x86_64-ioemu/mini-os.o: In function `ati_hw_out':
  /opt/tmp/xen-unstable.hg-rev-XXXXX/stubdom/ioemu/hw/pt-graphics.c:82: undefined reference to `iopl'
  /opt/tmp/xen-unstable.hg-rev-XXXXX/stubdom/ioemu/hw/pt-graphics.c:84: undefined reference to `iopl'
  /opt/tmp/xen-unstable.hg-rev-XXXXX/stubdom/mini-os-x86_64-ioemu/mini-os.o: In function `ati_hw_in':
  /opt/tmp/xen-unstable.hg-rev-XXXXX/stubdom/ioemu/hw/pt-graphics.c:72: undefined reference to `iopl'
  /opt/tmp/xen-unstable.hg-rev-XXXXX/stubdom/ioemu/hw/pt-graphics.c:74: undefined reference to `iopl' 

Build and install xen and stubdom

• Build

  make -j4 xen && make -j4 stubdom

• Install

  make install-xen && make install-stubdom

Build and install tools

• Cleanup tools

  cd tools
  make clean

• Reverse the workaround

  cd ..
  for i in 0 3;do sed -i "s:^.*iopl(${i});$:iopl(${i});:g" tools/qemu-xen-traditional-dir-remote/hw/pt-graphics.c;done

• Build and install tools

  make -j4 tools
  make install-tools PYTHON_PREFIX_ARG=

Linux script to manage domU (start/stop....)

Download the Linux shell script ftp://ftp.enjellic.com/pub/xen/run-passthrough and updated it to your own needs

Wine 1.5.27 is used to play the game.

• [-] Changing the window mode on the fly doesn't work.
• [+]No patch required for wine
• [+]Compared to the tests with Nvidia card, there is no graphical issue.

Listed below are the instructions to apply those patches. I tested thoses patches for revision 26706 and it worked too.

• Download the Xen unstable sources

  rev=26706
  hg clone -r $rev http://xenbits.xensource.com/staging/xen-unstable.hg/ xen-unstable.hg-rev-${rev}
  cd xen-unstable.hg-rev-${rev}

• configure

  CURL=$(which curl-config) XML=$(which xml2-config) ./configure

• Make an initial build for tools

  cd tools
  make -j4
  

• Clean up tools folder

  make clean

• Return to the Xen folder

  cd ..

• Download the patches

  wget -q http://www.davidgis.fr/download/xen-4.3_rev26458_gfx-passthrough-patchs_ATI_HD7970.tar.bz2

• Uncompress the tarball

  tar xvjf xen-4.3_rev26458_gfx-passthrough-patchs_ATI_HD7970.tar.bz2

• Apply the patches

  for file in $(ls ../xen-4.3_rev26458_gfx-passthrough-patchs_ATI_HD7970/*);do patch -p1 < $file;done

• Build everything

  make -j4 xen && make -j4 tools && make -j4 stubdom

• Install everything

  make install-xen && make install-tools PYTHON_PREFIX_ARG= && make install-stubdom