Re: [Xen-devel] [PATCH v4 00/14] Load BIOS via toolstack instead of been embedded in hvmloader.

[Jim Fehlig <jfehlig@xxxxxxxx>]

Anthony PERARD wrote:
> Hi all,
> 
> Few changes in V4:
>   I leave the ACPI alone and only load the BIOS via libxl now.
> 
>   Detail of changes in each patches.
> 
> I've look at loading the BIOS via the toolstack instead of having them 
> embedded
> in the hvmloader binary. After this patch series, hvmloader compilation would
> be indenpendant from SeaBIOS and OVMF compilation.
> 
> Here is a general view of the few step to load the BIOS:
> - libxl load the BIOS blob into it's memory and add it to struct
>   xc_hvm_build_args.bios_module
> - libxc load the blob into the guest memory and fill the struct
>   hvm_start_info and store a name for each module into the module cmdline.
> - hvmloader read the addresses from the hvm_start_info, find out which
>   module to load and copy the blob to the right place.
> 
> A git tree can be found here:
> git://xenbits.xen.org/people/aperard/xen-unstable.git
> tag: hvmloader-with-separated-bios-v4
> 
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Cc: Jan Beulich <jbeulich@xxxxxxxx>

I've been testing this series in conjunction with my downstream work to use
distro-provided qemu, SeaBIOS, and OVMF instead of the Xen built ones. I've
tested many combinations of these components, e.g. distro qemu and SeaBIOS,
qemu-xen with distro SeaBIOS, distro qemu with Xen SeaBIOS, etc., and haven't
noticed any problems. Therefore...

  Tested-by: Jim Fehlig <jfehlig@xxxxxxxx>

Regards,
Jim

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