Re: [Xen-devel] UEFI support on Dell boxes

[Roman Shaposhnik <roman@xxxxxxxxxx>]

On Tue, Nov 26, 2019 at 12:31 AM Jan Beulich <jbeulich@xxxxxxxx> wrote:
>
> On 26.11.2019 08:02, Roman Shaposhnik wrote:
> > On Mon, Nov 25, 2019 at 7:55 PM Marek Marczykowski-Górecki
> > <marmarek@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> >> On Mon, Nov 25, 2019 at 07:44:03PM -0800, Roman Shaposhnik wrote:
> >>> (XEN)  00000ff900000-00000ffffffff type=11 attr=8000000000000000
> >>> (XEN) Unknown cachability for MFNs 0xff900-0xfffff
> >>
> >> The faulting address is in this range. And because of unknown
> >> cachability, it isn't mapped. Try adding 'efi=attr=uc' to the Xen
> >> cmdline.
> >
> > Feels like we're getting exactly the same failure. Log attached.
>
> Clearly the option hasn't been taking effect. Could you please
> retry with this fix
> https://lists.xenproject.org/archives/html/xen-devel/2019-11/msg01494.html
> in place?

This works very well indeed! I acked it in the patch thread.

Thanks,
Roman.

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