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Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28 |
Date: |
Fri, 31 May 2013 11:32:47 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130513 Thunderbird/17.0.6 |
Hi,
> I guess -bios would load coreboot. Coreboot would siphon the data
> necessary for ACPI table building through the current (same) fw_cfg
> bottleneck, build the tables,
Yes.
> load the boot firmware (SeaBIOS or OVMF or
> something else -- not sure how to configure that),
The coreboot rom has named sections (this is called cbfs which stands
for coreboot filesystem IIRC):
rincewind kraxel ~# cbfstool /usr/share/coreboot.git/bios.bin print
bios.bin: 256 kB, bootblocksize 848, romsize 262144, offset 0x0
alignment: 64 bytes
Name Offset Type Size
cmos_layout.bin 0x0 cmos_layout 1160
fallback/romstage 0x4c0 stage 14419
fallback/coreboot_ram 0x3d80 stage 37333
config 0xcfc0 raw 2493
fallback/payload 0xd9c0 payload 56969
vgabios/sgabios 0x1b8c0 raw 4096
(empty) 0x1c900 null 144216
where "fallback/payload" is seabios.
> and pass down the
> tables to the firmware (through a now unspecified interface -- perhaps
> the tables could even be installed at this point).
As far I know coreboot can add more stuff such as acpi tables to cbfs at
runtime and seabios able to access cbfs too and pull informations from
coreboot that way.
HTH,
Gerd
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, (continued)
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, David Woodhouse, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Laszlo Ersek, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, David Woodhouse, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Michael S. Tsirkin, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Laszlo Ersek, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Jordan Justen, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Laszlo Ersek, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Jordan Justen, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Laszlo Ersek, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Michael S. Tsirkin, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28,
Gerd Hoffmann <=
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Peter Stuge, 2013/05/31
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Jordan Justen, 2013/05/31
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Michael S. Tsirkin, 2013/05/30
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, David Woodhouse, 2013/05/31
- Re: [Qemu-devel] [SeaBIOS] KVM call agenda for 2013-05-28, Patrick Georgi, 2013/05/31
Re: [Qemu-devel] KVM call agenda for 2013-05-28, Michael S. Tsirkin, 2013/05/29
Re: [Qemu-devel] KVM call agenda for 2013-05-28, Kevin O'Connor, 2013/05/30