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README OVMF: Update README file 2010-02-22 18:17:13 +00:00

README

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=== OVMF OVERVIEW ===



The Open Virtual Machine Firmware (OVMF) project aims

to support firmware for Virtual Machines using the edk2

code base.  More information can be found at:



http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=OVMF



=== STATUS ===



Current status: Alpha



Current capabilities:

* IA32 and X64 architectures

* QEMU (0.9.1 or later)

  - Video, keyboard, IDE, CD-ROM, serial

  - Runs UEFI shell

* UEFI Linux has booted (but is not stable)



=== FUTURE PLANS ===



* Stabilize UEFI Linux boot

* Test/Stabilize UEFI Self-Certification Tests (SCT) results



=== BUILDING OVMF ===



Pre-requisites:

* Build environment capable of build the edk2 MdeModulePkg.

* A properly configured ASL compiler

  * Intel ASL compiler: Available from http://www.acpica.org

      or

  * Microsoft ASL compiler: Available from http://www.acpi.info



Update Conf/target.txt ACTIVE_PLATFORM for OVMF:

                             PEI arch   DXE arch   UEFI interfaces

* OvmfPkg/OvmfPkgIa32.dsc      IA32       IA32           IA32

* OvmfPkg/OvmfPkgIa32X64.dsc   IA32       X64            X64

* OvmfPkg/OvmfPkgX64.dsc       X64        X64            X64



Update Conf/target.txt TARGET_ARCH based on the .dsc file:

                             TARGET_ARCH

* OvmfPkg/OvmfPkgIa32.dsc     IA32

* OvmfPkg/OvmfPkgIa32X64.dsc  IA32 X64

* OvmfPkg/OvmfPkgX64.dsc      X64



Following the edk2 build process, you will find the OVMF binaries

under the $WORKSPACE/Build/*/*/FV directory.  The actual path will

depend on how your build is configured.  You can expect to find

these binary outputs:

* OVMF.Fv

  * Please note!  This filename has changed.  Older releases used OVMF.fd.

* CirrusLogic5446.rom



More information on building OVMF can be found at:



http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=How_to_build_OVMF



=== RUNNING OVMF on QEMU ===



* QEMU 0.9.1 or later is required.

* Either copy, rename or symlink OVMF.Fv => bios.bin

* Either copy, rename or symlink CirrusLogic5446.rom => vgabios-cirrus.bin

* Be sure to use qemu-system-x86_64, if you are using and X64 firmware.

  (qemu-system-x86_64 works for the IA32 firmware as well, of course.)

* Use the QEMU -L parameter to specify the directory where the bios.bin

  and vgabios-cirrus.bin files are located.

* Optionally you can use the QEMU -serial command to capture the

  OVMF debug messages.  For example: -serial file:serial.log

* The EFI shell is built into OVMF builds at this time, so it should

  run automatically if a UEFI boot application is not found on the

  removable media.

* On Linux, newer version of QEMU may enable KVM feature, and this might cause OVMF

  to fail to boot.  The QEMU '-no-kvm' may allow OVMF to boot.