QEMU Build Tutorial - Revision history

SvenS: /* Building a Linux kernel payload */

2012-09-17T12:06:17Z

‎Building a Linux kernel payload

PatrickGeorgi: /* Requirements */ We're at coreboot v4 now

2011-06-01T10:55:18Z

‎Requirements: We're at coreboot v4 now

PatrickGeorgi: Updated Qemu usage, dropped the requirement to build from source, commented out the tutorial for building QEmu on FreeBSD (should not be necessary anymore, but I can't verify)

2011-06-01T10:54:02Z

Updated Qemu usage, dropped the requirement to build from source, commented out the tutorial for building QEmu on FreeBSD (should not be necessary anymore, but I can't verify)

Uwe at 20:08, 24 September 2010

2010-09-24T20:08:38Z

Stepan: /* Building coreboot */

2010-05-05T08:17:46Z

‎Building coreboot

Stepan: /* Requirements */

2010-05-05T08:09:37Z

‎Requirements

Stepan: /* Building a FILO payload */

2010-05-05T08:08:51Z

‎Building a FILO payload

Uwe: s/qemu-i386/qemu-x86/

2009-11-14T19:40:30Z

s/qemu-i386/qemu-x86/

Uwe at 23:30, 11 March 2008

2008-03-11T23:30:17Z

Phs: Building Qemu on FreeBSD: Latest Port version doesn't work any more.

2008-02-03T16:13:04Z

Building Qemu on FreeBSD: Latest Port version doesn't work any more.

@@ Line 56: / Line 56: @@
 Now use mkelfImage to convert your Linux kernel image (vmlinuz) and initramfs (initrd) into a usable coreboot payload (linux.elf):
   $ mkelfImage --append="console=ttyS0" --initrd=initrd vmlinuz linux.elf
 === Building coreboot ===

@@ Line 14: / Line 14: @@
 You need the following software packages:
-* [[Download_coreboot|coreboot v2]] r2405 or greater
+* [[Download_coreboot|coreboot v4]]
-* [http://qemu.org/ Qemu] 0.9.0 or greater
+* [http://qemu.org/ Qemu]
 * [[FILO]] 0.6 or greater (if using FILO)
 * [ftp://ftp.lnxi.com/pub/mkelfImage mkelfImage] 2.7 or greater (if not using FILO)
-plus a Linux kernel and root filesystem and a working development environment (make, gcc, etc.).  gcc 4.0.x and 4.1.x are known to work for all packages except QEMU, which requires gcc 3.x.
+plus a Linux kernel and root filesystem and a working development environment (make, gcc, etc.).
 === Building or finding a Linux kernel ===

@@ Line 61: / Line 61: @@
 See the [[Build HOWTO]] for information on how to build coreboot for this board.
-This creates the coreboot image (build/coreboot.rom).  Copy and rename this file to bios.bin in your home directory.
+This creates the coreboot image (build/coreboot.rom).
 === Building Qemu ===
-If you plan to run Qemu version 0.9.0, you will have to build QEMU from source after applying a couple of patches.  (Later versions of QEMU might incorporate these patches, allowing you to run them unmodified; hopefully someone will be kind enough to update this tutorial if this happens.)
+<!--
-−
-Download the QEMU source code (I used qemu-0.9.0.tar.gz) and extract it.
-−
-Download these three patches and save them to the QEMU source directory:
-* [http://xenon.stanford.edu/~eswierk/misc/qemu-linuxbios/qemu-isa-bios-ram.patch qemu-isa-bios-ram.patch]
-* [http://xenon.stanford.edu/~eswierk/misc/qemu-linuxbios/qemu-piix-ram-size.patch qemu-piix-ram-size.patch]
-* [http://lbdistro.sourceforge.net/patches/qemu-bios-size.patch qemu-bios-size.patch]
-−
-Enter the QEMU source directory and apply the patches:
- $ patch -p1 < qemu-isa-bios-ram.patch
- $ patch -p1 < qemu-piix-ram-size.patch
- $ patch -p1 < qemu-bios-size.patch
-−
-Configure and make QEMU (use the --cc option if your default gcc is newer than version 3.4):
- $ ./configure --cc=gcc-3.4 --target-list=i386-softmmu && make
-−
-The QEMU binary is stored in the i386-softmmu directory.
-−
 ==== Building Qemu on FreeBSD ====
 Qemu can easily be installed using FreeBSD's Ports tree. The Qemu port lives in emulators/qemu. However, as of version 0.9.1 the FreeBSD port can unfortunately no longer be used with coreboot. The latest working version is 0.9.0 which can be retrieved from the FreeBSD CVS repository. For your convenience, an archive of the last working port version has been uploaded to this wiki. You can download the archive from [http://www.coreboot.org/Image:FreeBSD-Qemu-0.9.0.tgz here]. For some reason, the downloaded archive cannot be extracted with tar only, so use these steps to extract the archive:
@@ Line 103: / Line 86: @@
 You can now use the Qemu binary located in <tt>/usr/local/bin</tt>.
+-->
 === Creating a hard disk image ===
@@ Line 143: / Line 126: @@
 Execute QEMU using the following parameters:
-  $ qemu -L ~ -hda disk.img -nographic
+  $ qemu -bios path/to/coreboot.rom -hda disk.img -nographic
-The -L option tells QEMU to look for bios.bin in your $HOME directory.  The -nographic option suppresses the graphical VGA display and connects the virtual machine's serial port to your console.
+The -bios option tells QEMU to use path/to/coreboot.rom as its BIOS.  The -nographic option suppresses the graphical VGA display and connects the virtual machine's serial port to your console. If you want to keep VGA display, you can use "-serial stdio" instead, which only redirects serial to the console.
 You should now see all sorts of interesting coreboot messages, followed by Linux kernel boot messages or a FILO prompt.

← Older revision		Revision as of 20:08, 24 September 2010
Line 155:		Line 155:

	[[Image:Screenshot linuxbios boots qemu.png]]		[[Image:Screenshot linuxbios boots qemu.png]]
−
−	~~[[Category:Tutorials]]~~

@@ Line 59: / Line 59: @@
 === Building coreboot ===
-Download the coreboot source code (I used coreboot-v2 r2405) and extract it.
+See the [[Build HOWTO]] for information on how to build coreboot for this board.
-−
-Change to directory targets/emulation/qemu-x86 and modify Config.lb:
-* change payload to point to your payload (filo.elf or linux.elf)
-* if you are using a Linux payload, increase the value of option ROM_SIZE to 2048*1024 (2 MB)
-Return to targets directory and execute:
+This creates the coreboot image (build/coreboot.rom).  Copy and rename this file to bios.bin in your home directory.
- $ ./buildtarget emulation/qemu-x86
-−
-Go to targets/emulation/qemu-x86/qemu-x86 and execute:
- $ make
-−
-This creates the coreboot image (qemu-bios.rom).  Copy and rename this file to bios.bin in your home directory.
 === Building Qemu ===

@@ Line 35: / Line 35: @@
 If you plan to build your Linux kernel and root filesystem directly into coreboot, you can skip this section.
-Download FILO (I used filo-0.4.2.tar.bz2), decompress it, and cd to the created directory.
+Download [[FILO]], and cd to the filo directory
-First invocation of make creates the default Config file.
+First invocation of make creates the config file.
-  $ make
+  $ make menuconfig
-Edit this file as you like. The default configuration worked for me.
+Run make again to create build/filo.elf, the ELF FILO image.
- $ vi Config
-−
 Run make again to create filo.elf, the ELF FILO image.
   $ make

← Older revision		Revision as of 23:30, 11 March 2008
Line 168:		Line 168:

	[[Image:Screenshot linuxbios boots qemu.png]]		[[Image:Screenshot linuxbios boots qemu.png]]
−	[[Category:~~Testing~~]]	+
		+	[[Category:Tutorials]]

@@ Line 98: / Line 98: @@
 ==== Building Qemu on FreeBSD ====
-Qemu can easily be installed using FreeBSD's Ports tree. The port system can also automatically apply patches as part of the port build process. Files in the port's <tt>files/</tt> subdirectory whose name start with ''patch-'' will automatically be applied as patches when building the port.
+Qemu can easily be installed using FreeBSD's Ports tree. The Qemu port lives in emulators/qemu. However, as of version 0.9.1 the FreeBSD port can unfortunately no longer be used with coreboot. The latest working version is 0.9.0 which can be retrieved from the FreeBSD CVS repository. For your convenience, an archive of the last working port version has been uploaded to this wiki. You can download the archive from [http://www.coreboot.org/Image:FreeBSD-Qemu-0.9.0.tgz here]. For some reason, the downloaded archive cannot be extracted with tar only, so use these steps to extract the archive:
-The Qemu port lives in emulators/qemu. In order to apply the patches mentioned above, copy the patch files to the <tt>files/</tt> subdirectory of the Qemu port (e.g. <tt>/usr/ports/emulators/qemu/files</tt>). Then rename them so that they carry the ''patch-'' prefix as part of their name. For instance, to have the port system automatically apply the Patch <tt>qemu-isa-bios-ram.patch</tt> mentioned above, rename the file to <tt>patch-isa-bios-ram.patch</tt>.
+ $ gunzip FreeBSD-Qemu-0.9.0.tgz
-Please note that you cannot use a prebuilt package but must build the port from sources. To do that, run (as root):
+To build and install the port, do this:
-  $ cd /usr/ports/emulators/qemu
+  $ cd qemu
   $ make clean install