Re: [Xen-devel] [PATCH v3 00/16] Load BIOS via toolstack instead of been embedded in hvmloader.

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 02/25/2016 09:55 AM, Anthony PERARD wrote:
> Hi all,
>
> Many changes in V3:
>    no more cmdline, but use each modules' cmdline to provide a name for it.
>    in libxc:
>      - use xc_dom_alloc_segment() to load modules. see patch #1.
>      - avoid duplication of code between PVHv2 and hvmloader for the
>        initialisation of hvm_start_info.
>    in xl/libxl:
>      - only one new option, bios_firmware. acpi_firmware is reused, see
>        patch #6.
>    in hvmloader:
>      - handle rombios as separate case.
>    more detail in each patches.
>
> I've look at loading the BIOS and the ACPI tables via the toolstack instead
> of having them embedded in the hvmloader binary.
This is what I've been trying to do for HVMlite/PVHv2 guests. Roger and 
I have a PoC toolstack code that loads limited ACPI data into the guest 
but I wonder whether these patches already do this.
I haven't gone over the series in detail yet. Does this allow toolstack 
to load RSDP and then R/XSDT, FADT etc. directly to guest memory or are 
they passed to hvmloader to do so via hvm_start_info? (I think it's the 
latter based on how I read patch 13 but I am not sure).

-boris


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