From: David Vrabel <david.vrabel@citrix.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>,
Jan Beulich <JBeulich@suse.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
Huaitong Han <huaitong.han@intel.com>, Tim Deegan <tim@xen.org>,
Xen-devel List <xen-devel@lists.xen.org>
Subject: Re: Xen PV PTE ABI (or lack thereof)
Date: Thu, 21 Jan 2016 14:29:22 +0000 [thread overview]
Message-ID: <56A0EB42.1050003@citrix.com> (raw)
In-Reply-To: <56A0DA69.7090002@citrix.com>
On 21/01/16 13:17, Andrew Cooper wrote:
>
> As we see with the Protection Key feature, newer hardware feature start
> using bits which were previously software available, and we absolutely
> don't want to be in a position where our ABI prevents us from ever
> supporting a new feature.
I don't see a problem in not supporting new features in /PV/ guests.
I think we should document the PV ABI as-is. i.e., that these two PTE
bits are not available for PV guest use.
David
next prev parent reply other threads:[~2016-01-21 14:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-20 20:10 Xen PV PTE ABI (or lack thereof) Andrew Cooper
2016-01-21 11:07 ` Jan Beulich
2016-01-21 11:16 ` Andrew Cooper
2016-01-21 12:59 ` Jan Beulich
2016-01-21 13:17 ` Andrew Cooper
2016-01-21 13:55 ` Jan Beulich
2016-01-21 15:10 ` Andrew Cooper
2016-01-21 14:29 ` David Vrabel [this message]
2016-01-21 14:37 ` Andrew Cooper
2016-01-21 14:53 ` David Vrabel
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