how to enter into cmos-setup of seabios in qemu/kvm

[dw]

Hi:

I'm running a VM with qemu/kvm and libvirt,I want to know how to 
enter into cmos-setup of seabios.

Anyone knows how to?

Or there is not cmos-setup in seabios?

please help me.

thanks!

dw

[Iru Cai]

On 2016年12月22日 18:29, dw wrote:
> Hi:
> I'm running a VM with qemu/kvm and libvirt,I want to know how to
>
> enter into cmos-setup of seabios.

What do you use cmos-setup for?
> Anyone knows how to?
>
> Or there is not cmos-setup in seabios?

For QEMU, no. You can set the boot order with QEMU command line.
> please help me.
>
>
> thanks!
>
>
> dw
>
> SeaBIOS mailing list
> [e-mail]
> https://www.coreboot.org/mailman/listinfo/seabios

[dwlinuxkernel]

Thanks for your help!
I can enter into cmos-setup when running VMware,so I want to have a try with qemu/kvm.

Now I know that could do some setup with "qemu-system* --fw_cfg",but not very much.
And I still not find the way to do bios-setup with libvirt.

At 2016-12-22 21:02:22, "Iru Cai"  wrote:
> On 2016年12月22日 18:29, dw wrote:
> > Hi:
> > I'm running a VM with qemu/kvm and libvirt,I want to know how to
> >
> > enter into cmos-setup of seabios.
>
> What do you use cmos-setup for?
> > Anyone knows how to?
> >
> > Or there is not cmos-setup in seabios?
>
> For QEMU, no. You can set the boot order with QEMU command line.
> > please help me.
> >
> >
> > thanks!
> >
> >
> > dw
> >
> > SeaBIOS mailing list
> > [e-mail]
> > https://www.coreboot.org/mailman/listinfo/seabios
>
> SeaBIOS mailing list
> [e-mail]
> https://www.coreboot.org/mailman/listinfo/seabios

[Gerd Hoffmann]

On Do, 2016-12-22 at 18:29 +0800, dw wrote:
> Hi:
>  I'm running a VM with qemu/kvm and libvirt,I want to know how to 
>
> enter into cmos-setup of seabios.
>  Anyone knows how to?
>
>  Or there is not cmos-setup in seabios?

There is no cmos setup.
What do you want configure there?

cheers,
  Gerd

[dw]

Thanks for your answer!
I can enter into cmos-setup when running VMware,so I want to have a try 
with qemu/kvm.

I have read Seabios's document,found that there were  items that could 
be configured with  "qemu-system* --fw_cfg",and only some of items was 
related to cmos setup.

在 2017年01月03日 21:49, Gerd Hoffmann 写道:
> On Do, 2016-12-22 at 18:29 +0800, dw wrote:
> > Hi:
> >   I'm running a VM with qemu/kvm and libvirt,I want to know how to
> >
> > enter into cmos-setup of seabios.
> >   Anyone knows how to?
> >
> >   Or there is not cmos-setup in seabios?
>
> There is no cmos setup.
> What do you want configure there?
>
> cheers,
>    Gerd

[Gerd Hoffmann]

On Mi, 2017-01-04 at 16:25 +0800, dw wrote:
> Thanks for your answer!
> I can enter into cmos-setup when running VMware,so I want to have a try 
> with qemu/kvm.
>
> I have read Seabios's document,found that there were  items that could 
> be configured with  "qemu-system* --fw_cfg",and only some of items was 
> related to cmos setup.

Yes, some of the stuff you usually find in the cmos setup on physical
hardware (boot device order for example) is configured with qemu command
line switches instead.

fw_cfg (shortcut for firmware config) is the name interface used to pass
this information from qemu to the firmware (be it seabios, ovmf or
something else).

HTH,
  Gerd

[Laszlo Ersek]

On 01/04/17 11:05, Gerd Hoffmann wrote:
> On Mi, 2017-01-04 at 16:25 +0800, dw wrote:
> > Thanks for your answer!
> > I can enter into cmos-setup when running VMware,so I want to have a try 
> > with qemu/kvm.
> >
> > I have read Seabios's document,found that there were  items that could 
> > be configured with  "qemu-system* --fw_cfg",and only some of items was 
> > related to cmos setup.
>
> Yes, some of the stuff you usually find in the cmos setup on physical
> hardware (boot device order for example) is configured with qemu command
> line switches instead.
>
> fw_cfg (shortcut for firmware config) is the name interface used to pass
> this information from qemu to the firmware (be it seabios, ovmf or
> something else).

Also... since VMware has been mentioned a few times, let's address the
elephant in the room: the VMWare host most definitely provides the
virtual machine in question with a firmware binary (a proprietary one at
that) that is implemented and shipped by VMWare. So what *their* virtual
firmware does is 100% independent of what SeaBIOS does.

The virtual firmware is specific to the vendor of the virtualization
platform.

Laszlo