[SeaBIOS] [PATCH RFC 0/7] VGA ROM improvements
Julian Pidancet
julian.pidancet at gmail.com
Fri Dec 16 15:15:06 CET 2011
This patch set contain ground work for a working VBE implementation.
It adds several things:
* A configuration menu in seabios Kconfig
* The ability to generate a PCI ROM
* PMM facilities that the ROM can use to allocate memory
* A skeleton driver to implement the VBE interface
As a bonus, it fixes an issue when real-mode VGA ROM code is
emulated by Windows 7, and is unable to cope with code generated
with the -fomit-frame-pointer option.
It should make pretty easy to implement the BOCHS DISPI interface.
Also, I use these patchs to implement VBE for an experimental gfx
device emulation. So far I managed to get Windows 7 to boot and
show up a 1280x1024 desktop.
Julian Pidancet (7):
Only use -fomit-frame-pointer with 32bit flat code
Rename CONFIG_VBE in CONFIG_VGA_BOCHS and CONFIG_CIRRUS in
CONFIG_VGA_CIRRUS
Add configuration menu for the VGA ROM
buildrom.py: Handle PCI header checksum
Add PMM memory allocation facilities for VGA option ROMs
Partially implement VBE interface, create VBE driver skeleton
Add vbe_flag field in BDA
Makefile | 7 +-
src/Kconfig | 35 +++++++
src/biosvar.h | 3 +-
tools/buildrom.py | 5 +
vgasrc/pmm.c | 50 +++++++++
vgasrc/pmm.h | 16 +++
vgasrc/vbe.c | 135 ++++++++++++++++++++++++
vgasrc/vbe.h | 194 +++++++++++++++++++++++++++++++++++
vgasrc/vga.c | 290 ++++++++++++++++++++++++++++++++++++++++++++--------
vgasrc/vgaentry.S | 47 ++++++++-
vgasrc/vgatables.h | 6 -
11 files changed, 731 insertions(+), 57 deletions(-)
create mode 100644 vgasrc/pmm.c
create mode 100644 vgasrc/pmm.h
create mode 100644 vgasrc/vbe.c
create mode 100644 vgasrc/vbe.h
--
Julian Pidancet
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