SeaBIOS December 2011

seabios@seabios.org

25 participants
64 discussions

Re: [SeaBIOS] [PATCH RFC 3/7] Add configuration menu for the VGA ROM
by Kevin O'Connor 17 Dec '11

17 Dec '11

On Fri, Dec 16, 2011 at 02:15:09PM +0000, Julian Pidancet wrote: > This patch adds a configuration menu for the VGA ROM, it also allow > the creation of a PCI header so the ROM can be extracted from a PCI > device. [...] > +menu "VGA ROM" > + config VGA_CIRRUS [...] > +#ifdef CONFIG_VGA_PCI The SeaBIOS Kconfig has been modified to always define symbols. If the user doesn't select an option it is defined as zero. [...] > +#ifdef CONFIG_PCIBIOS > +_rom_pci_data: > + .ascii "PCIR" > +#if defined(CONFIG_VGA_VID) && defined(CONFIG_VGA_DID) > + .word CONFIG_VGA_VID /* VendorID */ > + .word CONFIG_VGA_DID /* DeviceID */ > +#elif defined(CONFIG_VGA_CIRRUS) > + .word 0x1013 > + .word 0x00b8 > +#elif defined(CONFIG_VGA_BOCHS) > + .word 0x1234 > + .word 0x1111 I wonder if it would be nicer to move the defaults into the Kconfig. -Kevin

1 0

IRQ issues
by Gerd Hoffmann 17 Dec '11

17 Dec '11

Hi, Latest seabios master has trouble with interrupts. Running qemu 1.0, Fedora 16 (linux kernel 3.1) as guest. Linux ends up disabling both IRQ 10 and 11. Device drivers seem to miss interrupts: ehci_hcd 0000:00:1d.7: Unlink after no-IRQ? Controller is probably using the wrong IRQ. Bisecting points to this commit: commit a65f417c8430ce6781cbbfe84381a97d60628d81 Author: Kevin O'Connor <kevin(a)koconnor.net> Date: Sun Sep 25 23:08:58 2011 -0400 Consolidate DSDT copy-and-paste PCI IRQ code into method calls. Use method calls in LNK[ABCDS] object methods - this reduces the cut-and-paste code. It also makes it simpler and the object size smaller. Signed-off-by: Kevin O'Connor <kevin(a)koconnor.net> Ideas anyone? thanks, Gerd

3 3

how to boot seabios with a raid controller?
by Marc Jones 16 Dec '11

16 Dec '11

I'm trying coreboot + seabios on a system with a raid controller. What is the expected behavior in seabios for booting a sata raid controller? The controller supports raid and shows up as a raid class device. The raid option rom is loaded, but doesn't find any raid arrays. Later, seabios doesn't find the sata drive. I would expect that seabios or the optionrom (int13?) would still be able to support a normal sata drive. Thoughts, comments? Regards, Marc -- http://se-eng.com

1 0

[patch] Skip the bootmenu if only one device is found
by Marc Jones 16 Dec '11

16 Dec '11

The bootmenu is only useful if there are multiple devices. We can speed up theboot by a few seconds if there is only a single device to try to boot from. Signed-off-by: Marc Jones <marcj303(a)gmail.com> -- http://se-eng.com

1 0

Re: [SeaBIOS] [PATCH RFC 1/7] Only use -fomit-frame-pointer with 32bit flat code
by Paolo Bonzini 16 Dec '11

16 Dec '11

On 12/16/2011 03:15 PM, Julian Pidancet wrote: > The real-mode emulator that Windows 7 uses to execute the vga bios rom > becomes very confused when the code tries to dereference the stack > pointer instead of using the frame pointer, leading to corruption of > parameters passed on the stack from one function to another. > > Signed-off-by: Julian Pidancet<julian.pidancet(a)gmail.com> > --- > Makefile | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/Makefile b/Makefile > index c3ba2f3..cb00958 100644 > --- a/Makefile > +++ b/Makefile > @@ -32,14 +32,14 @@ COMMONCFLAGS = -I$(OUT) -Os -MD \ > $(call cc-option,$(CC),-Wtype-limits,) \ > -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \ > -mrtd -minline-all-stringops \ > - -freg-struct-return -ffreestanding -fomit-frame-pointer \ > + -freg-struct-return -ffreestanding \ > -fno-delete-null-pointer-checks \ > -ffunction-sections -fdata-sections -fno-common > COMMONCFLAGS += $(call cc-option,$(CC),-nopie,) > COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,) > COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,) > > -CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0 > +CFLAGS32FLAT = $(COMMONCFLAGS) -fomit-frame-pointer -g -DMODE16=0 -DMODESEGMENT=0 > CFLAGSSEG = $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \ > $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \ > $(call cc-option,$(CC),-fno-tree-switch-conversion,) Ouch. I can imagine how fun it must have been to debug this. Good catch. Paolo

1 0

Re: [SeaBIOS] [PATCH RFC 3/7] Add configuration menu for the VGA ROM
by Gerd Hoffmann 16 Dec '11

16 Dec '11

On 12/16/11 15:15, Julian Pidancet wrote: > This patch adds a configuration menu for the VGA ROM, it also allow > the creation of a PCI header so the ROM can be extracted from a PCI > device. Qemu three has different vga card emulations which all use the bochs dispi interface but have different pci ids. Would be nice to be able to build bioses for all of them with a single make run. Guess easiest way to do this is to have several CONFIG_VGA_QEMU_* options which each build a bochs vbe bios with predefined pci ids ... There are: -vga std 1234:1111 -vga vmware 15ad:0405 -vga qxl 1b36:0100 cheers, Gerd

1 0

[BUG] [Seabios] PCI 64bit BARs on Win2008 - unable to start the device. (ACPI lacks the _DSM method)
by Alexey Korolev 16 Dec '11

16 Dec '11

Hi, We have got some issues with 64bit PCI devices support under Windows guests. Windows fails to start any PCI devices with 64bit BARs when size exceeds 512MB with error code 12 (can't allocate resources). In other words it fails when the PCI memory region is located above 4GB. I tried to investigate this problem and found document from Microsoft: http://msdn.microsoft.com/en-us/windows/hardware/gg462986 It states that the _DSM method must be implemented to support devices above 4GB. Unfortunately I'm not familiar with ACPI code of seabios, so can't implement the _DSM method. May be you have other ideas what needs to be done to fix it? Any help is appreciated. Thanks, Alexey

4 19

Re: [SeaBIOS] Analysis of the current state and proposed future path for SeaBIOS.
by Peter Stuge 14 Dec '11

14 Dec '11

Fred . wrote: > Analysis of the current state and proposed future path for SeaBIOS. Please say if and how you want to contribute further. //Peter

2 1

Re: [SeaBIOS] Request: add support for animated splash screens
by Peter Stuge 14 Dec '11

14 Dec '11

Fred . wrote: > In the Windows splash screen the Windows logo is glowing. > It would be nice if SeaBIOS supported animated splash screens. As was mentioned, SeaBIOS doesn't run for very long. But sure, anyone is free to send a patch and let's have a look. Maybe a nice solution could be created using the threading. //Peter

2 1

Re: [SeaBIOS] (no subject)
by Peter Stuge 13 Dec '11

13 Dec '11

Fred . wrote: > A BIOS password would add an additional line of defense and protect > against booting from a removable device such as CD or USB. Compile out those drivers. //Peter

2 1

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

SeaBIOS December 2011