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Subject: Re: [Xen-devel] Patches for stable
To: Juergen Gross <jgross@suse.com>, George Dunlap <dunlapg@umich.edu>
Cc: Greg KH <gregkh@linuxfoundation.org>,
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From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Date: Thu, 5 Apr 2018 09:00:30 -0400
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On 04/05/2018 08:19 AM, Juergen Gross wrote:
> On 05/04/18 12:06, George Dunlap wrote:
>
>> Aren't there flags in the binary somewhere that could tell the
>> toolstack / Xen whether the kernel in question needs the RSDP table in
>> lowmem, or whether it can be put higher?
> Not really. Analyzing the binary whether it accesses the rsdp_addr in
> the start_info isn't the way to go, IMO.
>
> I've sent a patch to xen-devel adding a quirk flag to the domain's
> config to enable the admin special casing such an "old" kernel.

Can we backport latest struct hvm_start_info changes (which bumped
interface version) to 4.11 and pass RSDP only for versions >=1?

-boris