From: Anthony PERARD <anthony.perard@citrix.com>
To: Haozhong Zhang <haozhong.zhang@intel.com>
Cc: qemu-devel@nongnu.org, xen-devel@lists.xenproject.org,
Stefano Stabellini <sstabellini@kernel.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Dan Williams <dan.j.williams@intel.com>,
Chao Peng <chao.p.peng@linux.intel.com>,
Eduardo Habkost <ehabkost@redhat.com>,
Igor Mammedov <imammedo@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Xiao Guangrong <xiaoguangrong.eric@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [RFC QEMU PATCH v4 00/10] Implement vNVDIMM for Xen HVM guest
Date: Tue, 27 Feb 2018 17:22:23 +0000 [thread overview]
Message-ID: <20180227172223.GD1799@perard.uk.xensource.com> (raw)
In-Reply-To: <20171207101812.23602-1-haozhong.zhang@intel.com>
On Thu, Dec 07, 2017 at 06:18:02PM +0800, Haozhong Zhang wrote:
> This is the QEMU part patches that works with the associated Xen
> patches to enable vNVDIMM support for Xen HVM domains. Xen relies on
> QEMU to build guest NFIT and NVDIMM namespace devices, and allocate
> guest address space for vNVDIMM devices.
I've got other question, and maybe possible improvements.
When QEMU build the ACPI tables, it also initialize some MemoryRegion,
which use more guest memory. Do you know if those regions are used with
your patch series on Xen? Otherwise, we could try to avoid their
creation with this:
In xenfv_machine_options()
m->rom_file_has_mr = false;
(setting this in xen_hvm_init() would probably be better, but I havn't
try)
If this is possible, libxl would not need to allocate more memory for
the guest (dm_acpi_size).
--
Anthony PERARD
next prev parent reply other threads:[~2018-02-27 17:22 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20171207101030.22364-1-haozhong.zhang@intel.com>
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 00/10] Implement vNVDIMM for Xen HVM guest Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 01/10] xen-hvm: remove a trailing space Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 02/10] xen-hvm: create the hotplug memory region on Xen Haozhong Zhang
2018-02-27 16:37 ` Anthony PERARD
2018-02-28 7:47 ` Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 03/10] hostmem-xen: add a host memory backend for Xen Haozhong Zhang
2018-02-27 16:41 ` Anthony PERARD
2018-02-28 7:56 ` Haozhong Zhang
2018-03-02 11:50 ` Anthony PERARD
2018-03-05 7:53 ` Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 04/10] nvdimm: do not intiailize nvdimm->label_data if label size is zero Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 05/10] xen-hvm: initialize fw_cfg interface Haozhong Zhang
2018-02-27 16:46 ` Anthony PERARD
2018-02-28 8:16 ` Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 06/10] hw/acpi-build, xen-hvm: introduce a Xen-specific ACPI builder Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 07/10] xen-hvm: add functions to copy data from/to HVM memory Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 08/10] nvdimm acpi: add functions to access DSM memory on Xen Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 09/10] nvdimm acpi: add compatibility for 64-bit integer in ACPI 2.0 and later Haozhong Zhang
2017-12-07 10:18 ` [Qemu-devel] [RFC QEMU PATCH v4 10/10] xen-hvm: enable building NFIT and SSDT of vNVDIMM for HVM domains Haozhong Zhang
2018-02-27 17:22 ` Anthony PERARD [this message]
2018-02-28 9:36 ` [Qemu-devel] [RFC QEMU PATCH v4 00/10] Implement vNVDIMM for Xen HVM guest Haozhong Zhang
2018-03-02 12:03 ` Anthony PERARD
2018-03-06 4:16 ` [Qemu-devel] [Xen-devel] " Haozhong Zhang
2018-03-06 11:38 ` Anthony PERARD
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=20180227172223.GD1799@perard.uk.xensource.com \
--to=anthony.perard@citrix.com \
--cc=chao.p.peng@linux.intel.com \
--cc=dan.j.williams@intel.com \
--cc=ehabkost@redhat.com \
--cc=haozhong.zhang@intel.com \
--cc=imammedo@redhat.com \
--cc=konrad.wilk@oracle.com \
--cc=mst@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=rth@twiddle.net \
--cc=sstabellini@kernel.org \
--cc=xen-devel@lists.xenproject.org \
--cc=xiaoguangrong.eric@gmail.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).