From: Wei Liu <wei.liu2@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
Ian Campbell <ian.campbell@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
xen-devel <xen-devel@lists.xenproject.org>,
Xiantao Zhang <xiantao.zhang@intel.com>
Subject: Re: [PATCH] libxl: disallow PCI device assignment for HVM guest when PoD is enabled
Date: Fri, 10 Jan 2014 11:46:43 +0000 [thread overview]
Message-ID: <20140110114643.GF29180@zion.uk.xensource.com> (raw)
In-Reply-To: <52CFEA170200007800112465@nat28.tlf.novell.com>
On Fri, Jan 10, 2014 at 11:39:51AM +0000, Jan Beulich wrote:
> >>> On 10.01.14 at 12:27, Wei Liu <wei.liu2@citrix.com> wrote:
> > + /* We cannot have PoD and PCI device assignment at the same time
> > + * for HVM guest. It was reported that VT-d engine cannot
>
> There's still a "VT-d" left in here...
>
I mentioned AMD as well. Was trying to clarify things a bit more...
Wei.
> Jan
>
> > + * work with PoD enabled because it needs to populated entire page
> > + * table for guest. Also a quick grep through AMD IOMMU related
> > + * code suggests it has not coped with PoD as well. Just to stay
> > + * on the safe side, we disable PCI device assignment with PoD all
> > + * together, regardless of the underlying IOMMU in use.
> > + */
>
>
next prev parent reply other threads:[~2014-01-10 11:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-10 11:27 [PATCH] libxl: disallow PCI device assignment for HVM guest when PoD is enabled Wei Liu
2014-01-10 11:39 ` Jan Beulich
2014-01-10 11:46 ` Wei Liu [this message]
2014-01-10 12:16 ` Andrew Cooper
2014-01-10 12:21 ` Wei Liu
2014-01-10 12:28 ` Jan Beulich
2014-01-10 14:03 ` Wei Liu
2014-01-10 14:07 ` Ian Campbell
2014-01-10 14:09 ` Jan Beulich
2014-01-10 14:15 ` Wei Liu
2014-01-10 14:52 ` Jan Beulich
2014-01-13 10:54 ` Wei Liu
2014-01-13 11:11 ` Ian Campbell
2014-01-13 11:45 ` Wei Liu
2014-01-13 11:47 ` Ian Campbell
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=20140110114643.GF29180@zion.uk.xensource.com \
--to=wei.liu2@citrix.com \
--cc=JBeulich@suse.com \
--cc=ian.campbell@citrix.com \
--cc=ian.jackson@eu.citrix.com \
--cc=suravee.suthikulpanit@amd.com \
--cc=xen-devel@lists.xenproject.org \
--cc=xiantao.zhang@intel.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 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.