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



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?

Jan

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