[Qemu-devel] Re: [SeaBIOS] SMBIOS strings

[Sebastian Herbszt]

Jes Sorensen wrote:
> Hi,
>
> We were looking at the dmidecode output from qemu-kvm pre-seabios and
> current qemu-kvm and noticed some of the strings have changed.
>
> The main problem with this is that certain OSes are quite sensitive to
> system changes and avoiding to change things unnecessarily would
> probably be a good thing.

Which OSes do care? Windows only?

> I wanted to check with the lists if there are any strong feelings about
> this, and whether some of these changes were made for specific reasons?
>
> For example:
>
> Handle 0x0000, DMI type 0, 24 bytes
> BIOS Information
> -       Vendor: QEMU
> -       Version: QEMU
> +       Vendor: Bochs
> +       Version: Bochs
>        Release Date: 01/01/2007
>        Address: 0xE8000
>        Runtime Size: 96 kB

You can configure this with CONFIG_APPNAME.

> and this:
>
> Handle 0x0401, DMI type 4, 32 bytes
> Processor Information
> -       Socket Designation: CPU 1
> +       Socket Designation: CPU01
>        Type: Central Processor
>        Family: Other
> -       Manufacturer: QEMU
> -       ID: 63 06 00 00 FD FB 8B 07
> +       Manufacturer: Bochs
> +       ID: 23 06 00 00 FD FB 8B 07
>        Version: Not Specified
>        Voltage: Unknown
>        External Clock: Unknown
>
> I guess the Socket Designation in particular might have been done for a
> reason?
>
> Otherwise, if there are no objections, I'll look at adding some patches
> to make it more backwards compatible.
>
> Cheers,
> Jes

Is the different ID displayed on the same VM configuration (esp. -cpu option) ?
The value is gained by calling CPUID so it should not be different.

Which pre-seabios qemu-kvm bios are you comparing to?

Sebastian