From: Ian Jackson <ian.jackson@citrix.com>
To: Doug Goldstein <cardoe@cardoe.com>
Cc: Sergey Dyasli <sergey.dyasli@citrix.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Julien Grall <julien@xen.org>, Wei Liu <wl@xen.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
George Dunlap <George.Dunlap@citrix.com>,
Xen-devel <xen-devel@lists.xen.org>,
Jan Beulich <jbeulich@suse.com>,
Daniel De Graaf <dgdegra@tycho.nsa.gov>
Subject: Re: [Xen-devel] [PATCH v2] xsm: hide detailed Xen version from unprivileged guests
Date: Mon, 13 Jan 2020 14:01:23 +0000 [thread overview]
Message-ID: <24092.30771.810775.973167@mariner.uk.xensource.com> (raw)
In-Reply-To: <68263b88-40b7-89d3-c962-6991c708dd89@cardoe.com>
Doug Goldstein writes ("Re: [Xen-devel] [PATCH v2] xsm: hide detailed Xen version from unprivileged guests"):
> I'd be happy if we had a Kconfig option behind what the string is. Give
> me a blank as an option but default it to whatever string like
> "<hidden>" that you'd like. Every shipping Xen distro I've worked on has
> had its own v1 variant of the patch and none of them authored by me.
Firstly: I generally agree with George's comments about not liking
silent failure, and I disagree with Andrew. My inclination would be
to have this string be "<hidden>" (or similar) - and to not filter it
in the DMI tables, so it would be "<hidden>" everywhere.
Doug, I can't figure out from your messages whether that would meet
your needs ? Is George right that the reason for filtering what used
to be "<denied>" is simply to reduce support burden due to the
negative connotations of "denied" ? Would "hidden" fix that ?
If I am wrong, what is the reason for the filtering ?
If we have to have this string be configurable then so be it but I
would rather see if we can find one thing that meets downstreams'
needs.
FTR I agree with many of the points you make and I understand why you
think this is frustrating. I hope we can clear this up.
Ian.
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prev parent reply other threads:[~2020-01-13 14:01 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-10 10:37 Sergey Dyasli
2020-01-10 11:02 ` Andrew Cooper
2020-01-10 15:28 ` George Dunlap
2020-01-10 15:56 ` Jan Beulich
2020-01-10 16:45 ` Jürgen Groß
2020-01-10 17:00 ` George Dunlap
2020-01-11 3:55 ` Doug Goldstein
2020-01-11 9:35 ` George Dunlap
2020-01-13 11:01 ` Sergey Dyasli
2020-01-10 11:09 ` Jan Beulich
2020-01-11 4:02 ` Doug Goldstein
2020-01-11 9:02 ` George Dunlap
2020-01-12 18:26 ` Doug Goldstein
2020-01-13 12:51 ` George Dunlap
2020-01-13 13:39 ` Julien Grall
2020-01-13 14:01 ` Andrew Cooper
2020-01-13 14:07 ` George Dunlap
2020-01-13 14:28 ` Julien Grall
2020-01-13 14:40 ` Andrew Cooper
2020-01-14 10:19 ` Sergey Dyasli
2020-01-13 14:52 ` Julien Grall
2020-01-13 14:01 ` Ian Jackson [this message]
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