Re: [edk2] Xen OVMF early discussions

Subject: Re: [edk2] Xen OVMF early discussions

From: Jordan Justen <>

To: Andrei Warkentin <>

Date: 2011-04-28 01:19:38

On Wed, Apr 27, 2011 at 17:16, Andrei Warkentin  wrote:
> Kvm != Xen :)

Yes. :)  Sorry for the confusion.  I was just trying to provide a
reference point for the Xen project to consider using.


> On Apr 27, 2011 7:14 PM, "Jordan Justen"  wrote:
>> On Wed, Apr 27, 2011 at 17:00, Andrei Warkentin 
>> wrote:
>>> On Wed, Apr 27, 2011 at 6:37 PM, Andrei Warkentin 
>>> wrote:
>>>> Youch.... so the xenbus shared page lives at 0xfffff000... this is
>>>> causing all sorts of crazy stuff.
>>>> Looks like xc_hvm_build.c needs to be modified after all...
>>> Tim, can XENMEM_add_to_physmap be used to move foreign_map'ed pages?
>>> Maybe we can move all the special pages from inside the HVM loader to
>>> someplace safe (below UEFI firmware image sounds good)...
>> KVM reserves 16MB just below 4GB for firmware. See target-i386/kvm.c
>> and search for IDENTITY.
>> -Jordan

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