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root / pc-bios / optionrom @ 6683d7bc

Name Size
Makefile 880 Bytes
kvmvapic.S 5.1 kB
linuxboot.S 2.9 kB
multiboot.S 4.2 kB
optionrom.h 3.2 kB

Latest revisions

# Date Author Comment
0d09e41a 04/08/2013 07:13 pm Paolo Bonzini

hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches....
c6e052f0 11/30/2012 04:27 pm Paolo Bonzini

multiboot: fix e801 memory map

The e801 memory sizes in the multiboot structures hard-code the available
low memory to 640. However, the value should not include the size of the
EBDA. Fill the value in the option ROM, getting the size of low memory
from the BIOS....
0d6b9cc7 04/16/2012 04:41 pm Jan Kiszka

signrom: Rewrite as python script

Now that we have a hard dependency on python anyway, we can replace the
slow shell script to calculate the option ROM checksum with a fast AND
portable python version. Tested both with python 2.7 and 3.1.

Signed-off-by: Jan Kiszka <>
50198112 02/18/2012 12:16 pm Jan Kiszka

kvmvapic: Use optionrom helpers

Use OPTION_ROM_START/END from the common header file, add comment to
init code.

Signed-off-by: Jan Kiszka <>
Signed-off-by: Avi Kivity <>
1189aa51 02/18/2012 12:16 pm Jan Kiszka

kvmvapic: Simplify mp/up_set_tpr

The CH registers is only written, never read. So we can remove these
operations and, in case of up_set_tpr, also the ECX push/pop.

Signed-off-by: Jan Kiszka <>
Signed-off-by: Avi Kivity <>
209ca750 02/18/2012 12:16 pm Jan Kiszka

optionsrom: Reserve space for checksum

Always add a byte before the final 512-bytes alignment to reserve the
space for the ROM checksum.

Signed-off-by: Jan Kiszka <>
Signed-off-by: Avi Kivity <>
2a2af967 02/18/2012 12:15 pm Jan Kiszka

kvmvapic: Add option ROM

This imports and builds the original VAPIC option ROM of qemu-kvm.
Its interaction with QEMU is described in the commit that introduces the
corresponding device model.

Signed-off-by: Jan Kiszka <>
Signed-off-by: Avi Kivity <>
6fbcef29 02/01/2012 10:45 pm Jan Kiszka

optionroms: Silence intermediate file removal

The build process of optionroms spits out an "rm ..." line. Moreover, it
removes all .o files that can be handy for debugging purposes. So
disable automatic intermediate removal.

Signed-off-by: Jan Kiszka <>...
e7d81004 12/14/2011 01:09 pm Stefan Weil

Fix spelling in comments, documentation and messages

accidently->accidentally
annother->another
choosen->chosen
consideres->considers
decriptor->descriptor
developement->development
paramter->parameter
preceed->precede
preceeding->preceding
priviledge->privilege...
75b9f690 03/22/2011 08:00 am Gleb Natapov

fix linuxboot.bin and multiboot.bin to not hijack int19

Currently linuxboot.bin and multiboot.bin option roms override int19
vector to intercept boot process. No sane option rom should do that.
Provide bev entry instead that will be called by BIOS if option rom...

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