lkml.org 
[lkml]   [2017]   [Dec]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Xen-devel] [PATCH v2 1/3] x86/boot: add acpi rsdp address to setup_header

* Jan Beulich <JBeulich@suse.com> wrote:

> >>> On 08.12.17 at 08:16, <mingo@kernel.org> wrote:
> > Also, a more fundamental question: why doesn't Xen use EFI to hand over
> > hardware configuration details?
>
> Iirc the main purpose of the change here is to allow booting PVH
> (guest or Dom0) with Grub2 in the middle. PVH, at least for the
> time being, is something that gets away without any firmware
> (and I'm pretty certain this is going to remain that way for Dom0).
> ACPI tables are being built by the tool stack (guest) or hypervisor
> (Dom0). Hence there simply isn't any EFI which could be used to
> propagate such information.

Ok, that's fair enough. If hpa (or someone else) doesn't object to the boot
protocol extension this approach looks good to me in principle.

Thanks,

Ingo

\
 
 \ /
  Last update: 2017-12-08 09:36    [W:0.065 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site