From: "Jan Beulich" <JBeulich@suse.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: Martin Pohlack <mpohlack@amazon.de>,
Julien Grall <julien.grall@arm.com>,
Joao Martins <joao.m.martins@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Mihai Dontu <mdontu@bitdefender.com>,
Marek Marczykowski <marmarek@invisiblethingslab.com>,
Anthony Liguori <aliguori@amazon.com>,
xen-devel <xen-devel@lists.xenproject.org>,
uwed@amazon.de, Lars Kurth <lars.kurth@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Ross Philipson <ross.philipson@oracle.com>,
Dario Faggioli <dfaggioli@suse.com>, Matt Wilson <msw@amazon.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>,
Sergey Dyasli <sergey.dyasli@citrix.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Daniel Kiper <daniel.kiper@oracle.com>,
David Woodhouse <dwmw@amazon.co.uk>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: Re: Reducing or removing direct map from xen (was Re: Ongoing/future speculative mitigation work)
Date: Fri, 22 Feb 2019 06:27:30 -0700 [thread overview]
Message-ID: <5C6FF8C20200007800219362@prv1-mh.provo.novell.com> (raw)
In-Reply-To: <5C6FF829020000780021933F@prv1-mh.provo.novell.com>
>>> On 22.02.19 at 14:24, wrote:
>>>> On 22.02.19 at 14:19, <wei.liu2@citrix.com> wrote:
> > I have only realised this today: essentially we will end up implementing
> > xmalloc with vmalloc, which at the moment depends on xmalloc to allocate
> > the array of mfns.
>
> Which (potential locking issues aside) is not a problem, as the size of
> the MFN array will reduce logarithmically, until it eventually is no larger
> than a page anymore.
Err, not logarithmically, but you get the point.
Jan
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prev parent reply other threads:[~2019-02-22 13:27 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 17:46 Ongoing/future speculative mitigation work Andrew Cooper
2018-10-19 8:09 ` Dario Faggioli
2018-10-19 12:17 ` Andrew Cooper
2018-10-22 9:32 ` Mihai Donțu
2018-10-22 14:55 ` Wei Liu
2018-10-22 15:09 ` Woodhouse, David
2018-10-22 15:14 ` Andrew Cooper
2018-10-25 14:50 ` Jan Beulich
2018-10-25 14:56 ` George Dunlap
2018-10-25 15:02 ` Jan Beulich
2018-10-25 16:29 ` Andrew Cooper
2018-10-25 16:43 ` George Dunlap
2018-10-25 16:50 ` Andrew Cooper
2018-10-25 17:07 ` George Dunlap
2018-10-26 9:16 ` Jan Beulich
2018-10-26 9:28 ` Wei Liu
2018-10-26 9:56 ` Jan Beulich
2018-10-26 10:51 ` George Dunlap
2018-10-26 11:20 ` Jan Beulich
2018-10-26 11:24 ` George Dunlap
2018-10-26 11:33 ` Jan Beulich
2018-10-26 11:43 ` George Dunlap
2018-10-26 11:45 ` Jan Beulich
2018-12-11 18:05 ` Wei Liu
[not found] ` <FB70ABC00200007CA293CED3@prv1-mh.provo.novell.com>
2018-12-12 8:32 ` Jan Beulich
2018-10-24 15:24 ` Tamas K Lengyel
2018-10-25 16:01 ` Dario Faggioli
2018-10-25 16:25 ` Tamas K Lengyel
2018-10-25 17:23 ` Dario Faggioli
2018-10-25 17:29 ` Tamas K Lengyel
2018-10-26 7:31 ` Dario Faggioli
2018-10-25 16:55 ` Andrew Cooper
2018-10-25 17:01 ` George Dunlap
2018-10-25 17:35 ` Tamas K Lengyel
2018-10-25 17:43 ` Andrew Cooper
2018-10-25 17:58 ` Tamas K Lengyel
2018-10-25 18:13 ` Andrew Cooper
2018-10-25 18:35 ` Tamas K Lengyel
2018-10-25 18:39 ` Andrew Cooper
2018-10-26 7:49 ` Dario Faggioli
2018-10-26 12:01 ` Tamas K Lengyel
2018-10-26 14:17 ` Dario Faggioli
2018-10-26 10:11 ` George Dunlap
2018-12-07 18:40 ` Wei Liu
2018-12-10 12:12 ` George Dunlap
2018-12-10 12:19 ` George Dunlap
2019-01-24 11:44 ` Reducing or removing direct map from xen (was Re: Ongoing/future speculative mitigation work) Wei Liu
2019-01-24 16:00 ` George Dunlap
2019-02-07 16:50 ` Wei Liu
2019-02-20 12:29 ` Wei Liu
2019-02-20 13:00 ` Roger Pau Monné
2019-02-20 13:09 ` Wei Liu
2019-02-20 17:08 ` Wei Liu
2019-02-21 9:59 ` Roger Pau Monné
2019-02-21 17:51 ` Wei Liu
2019-02-22 11:48 ` Jan Beulich
2019-02-22 11:50 ` Wei Liu
2019-02-22 12:06 ` Jan Beulich
2019-02-22 12:11 ` Wei Liu
2019-02-22 12:47 ` Jan Beulich
2019-02-22 13:19 ` Wei Liu
[not found] ` <158783E402000088A293CED3@prv1-mh.provo.novell.com>
2019-02-22 13:24 ` Jan Beulich
2019-02-22 13:27 ` Jan Beulich [this message]
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