Re: [Xen-devel] [DRAFT RFC] PVHv2 interaction with physical devices

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 09/11/16 20:47, Pasi Kärkkäinen wrote:
> On Wed, Nov 09, 2016 at 06:51:49PM +0000, Andrew Cooper wrote:
>>> Low 1MB
>>> -------
>>>
>>> When booted with a legacy BIOS, the low 1MB contains firmware related data
>>> that should be identity mapped to the Dom0. This include the EBDA, video
>>> memory and possibly ROMs. All non RAM regions below 1MB will be identity
>>> mapped to the Dom0 so that it can access this data freely.
>> Are you proposing a unilateral identity map of the first 1MB, or just
>> the interesting regions?
>>
>> One thing to remember is the iBVT, for iscsi boot, which lives in
>> regular RAM and needs searching for.
>>
> I think you mean iBFT = iSCSI Boot Firmware Table.

I did indeed.  Sorry - BVT is a commonly used internal acronym, and is
clearly ingrained into my muscle memory.

~Andrew

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