From: "Jan Beulich" <jbeulich@suse.com>
To: andrew.cooper3@citrix.com
Cc: Juergen Gross <JGross@suse.com>,
haozhong.zhang@intel.com, guangrong.xiao@linux.intel.com,
arnd@arndb.de, linux-nvdimm@lists.01.org,
boris.ostrovsky@oracle.com, jthumshirn@suse.de,
linux-kernel@vger.kernel.org, stefano@aporeto.com,
david.vrabel@citrix.com, ross.zwisler@linux.intel.com,
xen-devel@lists.xenproject.org, dan.j.williams@intel.com,
akpm@linux-foundation.org
Subject: Re: [RFC KERNEL PATCH 0/2] Add Dom0 NVDIMM support for Xen
Date: Tue, 11 Oct 2016 07:08:42 -0600 [thread overview]
Message-ID: <57FCF26A02000078000F15E0__38370.8313609988$1476191427$gmane$org@prv-mh.provo.novell.com> (raw)
In-Reply-To: <dde78bbd-4739-98a1-4b69-2c2dff0a9d71@citrix.com>
>>> Andrew Cooper <andrew.cooper3@citrix.com> 10/10/16 6:44 PM >>>
>On 10/10/16 01:35, Haozhong Zhang wrote:
>> Xen hypervisor needs assistance from Dom0 Linux kernel for following tasks:
>> 1) Reserve an area on NVDIMM devices for Xen hypervisor to place
>> memory management data structures, i.e. frame table and M2P table.
>> 2) Report SPA ranges of NVDIMM devices and the reserved area to Xen
>> hypervisor.
>
>However, I can't see any justification for 1). Dom0 should not be
>involved in Xen's management of its own frame table and m2p. The mfns
>making up the pmem/pblk regions should be treated just like any other
>MMIO regions, and be handed wholesale to dom0 by default.
That precludes the use as RAM extension, and I thought earlier rounds of
discussion had got everyone in agreement that at least for the pmem case
we will need some control data in Xen.
Jan
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-10-11 13:08 UTC|newest]
Thread overview: 143+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-10 0:35 [RFC KERNEL PATCH 0/2] Add Dom0 NVDIMM support for Xen Haozhong Zhang
2016-10-10 0:35 ` Haozhong Zhang
2016-10-10 0:35 ` [RFC KERNEL PATCH 1/2] nvdimm: add PFN_MODE_XEN to pfn device for Xen usage Haozhong Zhang
2016-10-10 0:35 ` Haozhong Zhang
2016-10-10 0:35 ` Haozhong Zhang
2016-10-10 0:35 ` [RFC KERNEL PATCH 2/2] xen, nvdimm: report pfn devices in PFN_MODE_XEN to Xen hypervisor Haozhong Zhang
2016-10-10 0:35 ` Haozhong Zhang
2016-10-10 0:35 ` Haozhong Zhang
2016-10-10 3:45 ` [RFC KERNEL PATCH 0/2] Add Dom0 NVDIMM support for Xen Dan Williams
2016-10-10 3:45 ` Dan Williams
2016-10-10 3:45 ` Dan Williams
2016-10-10 6:32 ` Haozhong Zhang
2016-10-10 6:32 ` Haozhong Zhang
2016-10-10 16:24 ` Dan Williams
2016-10-10 16:24 ` Dan Williams
2016-10-10 16:24 ` Dan Williams
2016-10-11 7:11 ` Haozhong Zhang
2016-10-11 7:11 ` Haozhong Zhang
2016-10-11 7:11 ` Haozhong Zhang
2016-10-10 6:32 ` Haozhong Zhang
2016-10-10 16:43 ` [Xen-devel] " Andrew Cooper
2016-10-10 16:43 ` Andrew Cooper
2016-10-11 5:52 ` Haozhong Zhang
2016-10-11 5:52 ` [Xen-devel] " Haozhong Zhang
2016-10-11 5:52 ` Haozhong Zhang
2016-10-11 18:37 ` Andrew Cooper
2016-10-11 18:37 ` Andrew Cooper
2016-10-11 18:45 ` Konrad Rzeszutek Wilk
[not found] ` <de62aa59-37e0-b01f-1617-6fc8f6fb3620-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
2016-10-11 18:45 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-11 18:45 ` Konrad Rzeszutek Wilk
2016-10-11 18:48 ` Konrad Rzeszutek Wilk
2016-10-11 18:48 ` Konrad Rzeszutek Wilk
2016-10-11 18:48 ` Konrad Rzeszutek Wilk
2016-10-11 18:37 ` Andrew Cooper
2016-10-11 13:08 ` [Xen-devel] " Jan Beulich
2016-10-11 13:08 ` Jan Beulich
2016-10-11 15:53 ` Dan Williams
2016-10-11 15:53 ` [Xen-devel] " Dan Williams
2016-10-11 15:53 ` Dan Williams
2016-10-11 16:58 ` Konrad Rzeszutek Wilk
2016-10-11 16:58 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-11 16:58 ` Konrad Rzeszutek Wilk
2016-10-11 17:51 ` Dan Williams
2016-10-11 17:51 ` Dan Williams
2016-10-11 18:15 ` Andrew Cooper
2016-10-11 18:15 ` Andrew Cooper
2016-10-11 18:42 ` Konrad Rzeszutek Wilk
2016-10-11 18:42 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-11 18:42 ` Konrad Rzeszutek Wilk
2016-10-11 19:43 ` Konrad Rzeszutek Wilk
2016-10-11 19:43 ` Konrad Rzeszutek Wilk
2016-10-11 19:43 ` Konrad Rzeszutek Wilk
2016-10-11 18:15 ` Andrew Cooper
2016-10-11 18:33 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-11 18:33 ` Konrad Rzeszutek Wilk
2016-10-11 19:28 ` Dan Williams
2016-10-11 19:28 ` Dan Williams
2016-10-11 19:48 ` Konrad Rzeszutek Wilk
2016-10-11 19:48 ` [Xen-devel] " Konrad Rzeszutek Wilk
2016-10-11 19:48 ` Konrad Rzeszutek Wilk
2016-10-11 20:17 ` Dan Williams
2016-10-12 10:33 ` Haozhong Zhang
2016-10-12 10:33 ` Haozhong Zhang
2016-10-12 11:32 ` Jan Beulich
2016-10-12 11:32 ` [Xen-devel] " Jan Beulich
2016-10-12 11:32 ` Jan Beulich
2016-10-12 14:58 ` Haozhong Zhang
2016-10-12 14:58 ` [Xen-devel] " Haozhong Zhang
2016-10-12 14:58 ` Haozhong Zhang
2016-10-12 15:39 ` Jan Beulich
2016-10-12 15:39 ` [Xen-devel] " Jan Beulich
2016-10-12 15:39 ` Jan Beulich
2016-10-12 15:42 ` Dan Williams
2016-10-12 15:42 ` Dan Williams
2016-10-12 16:01 ` Jan Beulich
2016-10-12 16:01 ` Jan Beulich
2016-10-12 16:19 ` Dan Williams
2016-10-12 16:19 ` [Xen-devel] " Dan Williams
2016-10-12 16:19 ` Dan Williams
2016-10-13 8:34 ` Jan Beulich
2016-10-13 8:34 ` Jan Beulich
2016-10-13 8:53 ` Haozhong Zhang
2016-10-13 8:53 ` [Xen-devel] " Haozhong Zhang
2016-10-13 8:53 ` Haozhong Zhang
2016-10-13 9:08 ` Jan Beulich
2016-10-13 9:08 ` Jan Beulich
2016-10-13 15:40 ` Dan Williams
2016-10-13 15:40 ` [Xen-devel] " Dan Williams
2016-10-13 15:40 ` Dan Williams
2016-10-13 16:01 ` Andrew Cooper
2016-10-13 16:01 ` [Xen-devel] " Andrew Cooper
2016-10-13 16:01 ` Andrew Cooper
2016-10-13 18:59 ` Dan Williams
2016-10-13 18:59 ` [Xen-devel] " Dan Williams
2016-10-13 18:59 ` Dan Williams
2016-10-13 19:33 ` Andrew Cooper
2016-10-13 19:33 ` Andrew Cooper
2016-10-14 7:08 ` Haozhong Zhang
2016-10-14 7:08 ` Haozhong Zhang
2016-10-14 12:18 ` Andrew Cooper
2016-10-14 12:18 ` Andrew Cooper
2016-10-20 9:14 ` Haozhong Zhang
2016-10-20 9:14 ` [Xen-devel] " Haozhong Zhang
2016-10-20 9:14 ` Haozhong Zhang
2016-10-20 21:46 ` Andrew Cooper
2016-10-20 21:46 ` [Xen-devel] " Andrew Cooper
2016-10-20 21:46 ` Andrew Cooper
2016-10-14 12:18 ` Andrew Cooper
2016-10-14 7:08 ` Haozhong Zhang
2016-10-13 19:33 ` Andrew Cooper
2016-10-14 10:03 ` [Xen-devel] " Jan Beulich
2016-10-14 10:03 ` Jan Beulich
2016-10-14 10:03 ` Jan Beulich
2016-10-13 15:46 ` Haozhong Zhang
2016-10-13 15:46 ` [Xen-devel] " Haozhong Zhang
2016-10-13 15:46 ` Haozhong Zhang
2016-10-14 10:16 ` Jan Beulich
2016-10-14 10:16 ` [Xen-devel] " Jan Beulich
2016-10-14 10:16 ` Jan Beulich
2016-10-20 9:15 ` Haozhong Zhang
2016-10-20 9:15 ` Haozhong Zhang
2016-10-20 9:15 ` Haozhong Zhang
2016-10-13 9:08 ` Jan Beulich
2016-10-13 9:08 ` [Xen-devel] " Haozhong Zhang
2016-10-13 9:08 ` Haozhong Zhang
2016-10-13 9:08 ` Haozhong Zhang
2016-10-13 8:34 ` Jan Beulich
2016-10-12 16:01 ` Jan Beulich
2016-10-12 15:42 ` Dan Williams
2016-10-12 10:33 ` Haozhong Zhang
2016-10-11 20:17 ` Dan Williams
2016-10-11 20:18 ` Andrew Cooper
2016-10-11 20:18 ` [Xen-devel] " Andrew Cooper
2016-10-11 20:18 ` Andrew Cooper
2016-10-11 19:28 ` Dan Williams
2016-10-11 18:33 ` Konrad Rzeszutek Wilk
2016-10-11 17:51 ` Dan Williams
2016-10-12 7:25 ` Jan Beulich
2016-10-12 7:25 ` [Xen-devel] " Jan Beulich
2016-10-12 7:25 ` Jan Beulich
2016-10-11 13:08 ` Jan Beulich [this message]
2016-10-10 16:43 ` Andrew Cooper
-- strict thread matches above, loose matches on Subject: below --
2016-10-10 0:35 Haozhong Zhang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='57FCF26A02000078000F15E0__38370.8313609988$1476191427$gmane$org@prv-mh.provo.novell.com' \
--to=jbeulich@suse.com \
--cc=JGross@suse.com \
--cc=akpm@linux-foundation.org \
--cc=andrew.cooper3@citrix.com \
--cc=arnd@arndb.de \
--cc=boris.ostrovsky@oracle.com \
--cc=dan.j.williams@intel.com \
--cc=david.vrabel@citrix.com \
--cc=guangrong.xiao@linux.intel.com \
--cc=haozhong.zhang@intel.com \
--cc=jthumshirn@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvdimm@lists.01.org \
--cc=ross.zwisler@linux.intel.com \
--cc=stefano@aporeto.com \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.