[Xen-devel] [PATCH V2] docs, Add HowTo use QEMU upstream.

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
Change with v1:
  - fix spelling & grammar.
  - Add a note about futur patches.

 docs/misc/qemu-upstream_howto_use_it.markdown |  129 +++++++++++++++++++++++++
 1 files changed, 129 insertions(+), 0 deletions(-)

diff --git a/docs/misc/qemu-upstream_howto_use_it.markdown 
b/docs/misc/qemu-upstream_howto_use_it.markdown
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+Help to use QEMU (upstream version) with Xen
+============================================
+
+Note
+----
+
+All these steps will become unnecessary after the patches to integrate
+SeaBIOS/QEMU build will be applied.
+
+
+How to build it
+---------------
+
+### SeaBIOS
+
+The new device-model needs a different BIOS, SeaBIOS. Clone the repository 
from:
+
+  - git://git.qemu.org/seabios.git
+  - http://git.qemu.org/git/seabios.git
+
+Put the `.config` file in the appendix at the root of seabios.git and build 
SeaBIOS.
+
+In xen-unstable source tree, add the file `.config` with
+`SEABIOS_DIR = /path/to/seabios.git`.
+To build hvmloader with SeaBIOS, you propably need to `make -C tools/firmware
+clean` first and then `make tools`, to use the new SEABIOS_DIR parameter.
+
+
+### QEMU
+
+Get QEMU upstream source from:
+
+  - git://xenbits.xensource.com/qemu-upstream-unstable.git
+  - http://xenbits.xensource.com/git-http/qemu-upstream-unstable.git
+
+To configure build QEMU upstream with Xen
+
+    ./configure --enable-xen --target-list=i386-softmmu 
--extra-cflags="-I$path_to_xen_source/tools/include 
-I$path_to_xen_source/tools/libxc -I$path_to_xen_source/tools/xenstore" 
--extra-ldflags="-L$path_to_xen_source/tools/libxc 
-L$path_to_xen_source/tools/xenstore"
+
+You can also use other several options such as `--disable-kvm`.
+
+
+How to use QEMU upstream
+------------------------
+
+Only xl support QEMU upstream.
+
+To actually use it, add or change this in your VM configuration file:
+
+    device_model_version = 'qemu-xen'
+    device_model_override = '/path/to/qemu/i386-softmmu/qemu'
+
+NB: On qemu-upstream repository, the default binary name has been renamed to
+`qemu-system-i386`.
+
+
+Appendix
+------
+
+### `.config` file for SeaBIOS
+
+    #
+    # General Features
+    #
+    # CONFIG_COREBOOT is not set
+    CONFIG_XEN=y
+    CONFIG_THREADS=y
+    CONFIG_THREAD_OPTIONROMS=y
+    CONFIG_RELOCATE_INIT=y
+    CONFIG_BOOTMENU=y
+    CONFIG_BOOTMENU_WAIT=1000
+    # CONFIG_BOOTSPLASH is not set
+    CONFIG_BOOTORDER=y
+    #
+    # Hardware support
+    #
+    CONFIG_ATA=y
+    CONFIG_ATA_DMA=y
+    CONFIG_ATA_PIO32=y
+    CONFIG_AHCI=y
+    CONFIG_VIRTIO_BLK=y
+    CONFIG_FLOPPY=y
+    CONFIG_PS2PORT=y
+    CONFIG_USB=y
+    CONFIG_USB_UHCI=y
+    CONFIG_USB_OHCI=y
+    CONFIG_USB_EHCI=y
+    CONFIG_USB_MSC=y
+    CONFIG_USB_HUB=y
+    CONFIG_USB_KEYBOARD=y
+    CONFIG_USB_MOUSE=y
+    CONFIG_SERIAL=y
+    CONFIG_LPT=y
+    # CONFIG_EXTRA_PCI_ROOTS is not set
+    # CONFIG_USE_SMM is not set
+    CONFIG_MTRR_INIT=y
+    #
+    # BIOS interfaces
+    #
+    CONFIG_DRIVES=y
+    # CONFIG_CDROM_BOOT is not set
+    CONFIG_PCIBIOS=y
+    CONFIG_APMBIOS=y
+    CONFIG_PNPBIOS=y
+    CONFIG_OPTIONROMS=y
+    # CONFIG_OPTIONROMS_DEPLOYED is not set
+    CONFIG_OPTIONROMS_CHECKSUM=y
+    CONFIG_PMM=y
+    CONFIG_BOOT=y
+    CONFIG_KEYBOARD=y
+    CONFIG_KBD_CALL_INT15_4F=y
+    CONFIG_MOUSE=y
+    CONFIG_S3_RESUME=y
+    # CONFIG_S3_RESUME_VGA_INIT is not set
+    # CONFIG_DISABLE_A20 is not set
+    #
+    # BIOS Tables
+    #
+    CONFIG_PIRTABLE=y
+    CONFIG_MPTABLE=y
+    CONFIG_SMBIOS=y
+    CONFIG_ACPI=y
+    #
+    # Debugging
+    #
+    CONFIG_DEBUG_LEVEL=3
+    CONFIG_DEBUG_SERIAL=y
+    CONFIG_DEBUG_SERIAL_PORT=0x3f8
+    # CONFIG_SCREEN_AND_DEBUG is not set
-- 
tg: (440f4bd..) docs/qemu (depends on: master)

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