From: Keir Fraser <keir@xen.org>
To: Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jan Beulich <jbeulich@suse.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: RFC: EFER in crash notes
Date: Tue, 25 Sep 2012 16:01:32 +0100 [thread overview]
Message-ID: <CC8785DC.4CD89%keir@xen.org> (raw)
In-Reply-To: <5061C556.60406@citrix.com>
On 25/09/2012 15:53, "Andrew Cooper" <andrew.cooper3@citrix.com> wrote:
>> I suppose the size field in the notes is a sort of rudimentary version
>> field. Remember you can always add a new note type though.
>
> Yes, although looking through my code, I do raise an error if
> sizeof(note->desc) != sizeof(my structure representing this note), which
> was put in with the best of intentions, but will break with the this RFC
> change.
>
> On the other hand, adding a new crash note for every new register will
> not scale well, as it is per PCU.
>
> I guess the only sensible way to continue is to present a formal public ABI.
That seems a good idea.
-- Keir
next prev parent reply other threads:[~2012-09-25 15:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-25 14:18 RFC: EFER in crash notes Andrew Cooper
2012-09-25 14:33 ` Ian Campbell
2012-09-25 14:53 ` Andrew Cooper
2012-09-25 15:01 ` Keir Fraser [this message]
2012-09-25 15:17 ` Ian Campbell
2012-09-25 15:26 ` Jan Beulich
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