mirror of https://github.com/acidanthera/audk.git
117 lines
4.4 KiB
Plaintext
117 lines
4.4 KiB
Plaintext
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=== OVMF OVERVIEW ===
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The Open Virtual Machine Firmware (OVMF) project aims
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to support firmware for Virtual Machines using the edk2
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code base. More information can be found at:
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http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=OVMF
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=== STATUS ===
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Current status: Alpha
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Current capabilities:
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* IA32 and X64 architectures
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* QEMU (0.9.1 or later)
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- Video, keyboard, IDE, CD-ROM, serial
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- Runs UEFI shell
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- Optional NIC support. Requires QEMU (0.12.2 or later)
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* UEFI Linux has booted (but is not stable)
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=== FUTURE PLANS ===
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* Stabilize UEFI Linux boot
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* Test/Stabilize UEFI Self-Certification Tests (SCT) results
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=== BUILDING OVMF ===
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Pre-requisites:
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* Build environment capable of build the edk2 MdeModulePkg.
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* A properly configured ASL compiler
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* Intel ASL compiler: Available from http://www.acpica.org
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or
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* Microsoft ASL compiler: Available from http://www.acpi.info
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Update Conf/target.txt ACTIVE_PLATFORM for OVMF:
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PEI arch DXE arch UEFI interfaces
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* OvmfPkg/OvmfPkgIa32.dsc IA32 IA32 IA32
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* OvmfPkg/OvmfPkgIa32X64.dsc IA32 X64 X64
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* OvmfPkg/OvmfPkgX64.dsc X64 X64 X64
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Update Conf/target.txt TARGET_ARCH based on the .dsc file:
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TARGET_ARCH
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* OvmfPkg/OvmfPkgIa32.dsc IA32
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* OvmfPkg/OvmfPkgIa32X64.dsc IA32 X64
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* OvmfPkg/OvmfPkgX64.dsc X64
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Following the edk2 build process, you will find the OVMF binaries
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under the $WORKSPACE/Build/*/*/FV directory. The actual path will
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depend on how your build is configured. You can expect to find
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these binary outputs:
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* OVMF.FD
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* Please note! This filename has changed. Older releases used OVMF.Fv.
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* CirrusLogic5446.rom
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More information on building OVMF can be found at:
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http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=How_to_build_OVMF
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=== RUNNING OVMF on QEMU ===
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* QEMU 0.9.1 or later is required.
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* Either copy, rename or symlink OVMF.FD => bios.bin
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* Either copy, rename or symlink CirrusLogic5446.rom => vgabios-cirrus.bin
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* Be sure to use qemu-system-x86_64, if you are using and X64 firmware.
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(qemu-system-x86_64 works for the IA32 firmware as well, of course.)
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* Use the QEMU -L parameter to specify the directory where the bios.bin
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and vgabios-cirrus.bin files are located.
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* Optionally you can use the QEMU -serial command to capture the
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OVMF debug messages. For example: -serial file:serial.log
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* The EFI shell is built into OVMF builds at this time, so it should
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run automatically if a UEFI boot application is not found on the
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removable media.
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* On Linux, newer version of QEMU may enable KVM feature, and this might
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cause OVMF to fail to boot. The QEMU '-no-kvm' may allow OVMF to boot.
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=== Build Scripts ===
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On environments with the bash shell you can use OvmfPkg/build32.sh and
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OvmfPkg/build64.sh to simplify building and running OVMF.
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So, for example, to build + run OVMF X64:
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$ OvmfPkg/build64.sh
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$ OvmfPkg/build64.sh qemu
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And to run a 64-bit UEFI bootable ISO image:
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$ OvmfPkg/build64.sh qemu -cdrom /path/to/disk-image.iso
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=== Network Support ===
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To add network drivers to OVMF:
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* Download UEFI drivers for the e1000 NIC
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- http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=17515&lang=eng
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- Install the drivers into a directory called Intel3.5 in your WORKSPACE
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* Include the drivers in OVMF during the build:
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- Add '-D NETWORK_ENABLE' to your build command
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- For example: build -D NETWORK_ENABLE
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* Use the QEMU -net parameter to enable NIC support.
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- QEMU does not support UEFI DHCP or UEFI PXE Boot, so long timeouts will
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occur when NICs are enabled. The long timeouts can be avoided by
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interrupts the boot sequence by pressing a key when the logo appears.
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- Example: Enable e1000 NIC with a DHCP server and restrict packet
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forwarding:
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-net nic,model=e1000 -net user,restrict=yes -net user,dhcpstart=10.0.2.10
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- Example: Enable e1000 NIC with a DHCP server, restrict packet forwarding,
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and generate PCAP file:
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-net nic,model=e1000 -net user,restrict=yes -net user,dhcpstart=10.0.2.10
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-net dump,file=a.pcap
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- Example: Enable 2 e1000 NICs with a DHCP server and restrict
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packet forwarding:
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-net nic,model=e1000,addr=3 -net nic,model=e1000,addr=4
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-net user,restrict=yes -net user,dhcpstart=10.0.2.10
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