Re: [edk2] Xen OVMF early discussions

Subject: Re: [edk2] Xen OVMF early discussions

From: Andrei Warkentin <andreiw@motorola.com>

To: Jordan Justen <jljusten@gmail.com>

Date: 2011-04-28 03:15:46

Thanks,
A

On Apr 27, 2011 7:14 PM, "Jordan Justen" <jljusten@gmail.com> wrote:
> On Wed, Apr 27, 2011 at 17:00, Andrei Warkentin <andreiw@motorola.com> wrote:
>> On Wed, Apr 27, 2011 at 6:37 PM, Andrei Warkentin <andreiw@motorola.com> 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