From: Muli Ben-Yehuda <muli@il.ibm.com>
To: Avi Kivity <avi@qumranet.com>
Cc: Amit Shah <amit.shah@qumranet.com>,
kvm@vger.kernel.org, anthony@codemonkey.ws,
jesse.barnes@intel.com, david.woodhouse@intel.com,
mark.gross@intel.com, Ben-Ami Yassour1 <BENAMI@il.ibm.com>,
weidong.han@intel.com
Subject: Re: VT-d support for device assignment
Date: Fri, 22 Aug 2008 21:28:10 +0300 [thread overview]
Message-ID: <20080822182810.GI6885@il.ibm.com> (raw)
In-Reply-To: <48AF039B.7040805@qumranet.com>
On Fri, Aug 22, 2008 at 09:21:15PM +0300, Avi Kivity wrote:
> You mean, iommu=on.
Agreed. This should also be the default if not dma=xxx is specfied and
a capable IOMMU is found.
> Or rather
>
> dma=iommu
> dma=none (1:1 mapping, or dma-less devices, or I'm Feeling Lucky)
> dma=cooperative (paravirt)
What does the 'cooperative' mean? I assume you are thinking of
PVDMA-without-IOMMU, but in that case the name is misleading, since
you can do cooperative (PVDMA) just fine with an IOMMU. Perhaps
"dma=itrusttheguest", since with PVDMA0-without-IOMMU the guest is
trusted to not screw up the system?
Cheers,
Muli
--
Workshop on I/O Virtualization (WIOV '08)
Co-located with OSDI '08, Dec 2008, San Diego, CA
http://www.usenix.org/wiov08
next prev parent reply other threads:[~2008-08-22 18:28 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-22 7:10 VT-d support for device assignment Amit Shah
2008-08-22 7:10 ` [PATCH] VT-d: changes to support KVM Amit Shah
2008-08-22 7:10 ` [PATCH] KVM: Device Assignment with VT-d Amit Shah
2008-08-23 16:21 ` [PATCH] VT-d: changes to support KVM Jesse Barnes
2008-08-22 13:54 ` VT-d support for device assignment Byron Stanoszek
2008-08-22 15:32 ` Amit Shah
2008-08-22 18:29 ` Muli Ben-Yehuda
2008-08-22 18:37 ` Avi Kivity
2008-08-22 19:09 ` Muli Ben-Yehuda
2008-08-22 16:08 ` Muli Ben-Yehuda
2008-08-22 18:12 ` Avi Kivity
2008-08-22 18:23 ` Muli Ben-Yehuda
2008-08-22 18:21 ` Avi Kivity
2008-08-22 18:28 ` Muli Ben-Yehuda [this message]
2008-08-23 9:12 ` Amit Shah
2008-08-23 9:33 ` Avi Kivity
2008-08-23 9:49 ` Amit Shah
2008-08-24 10:01 ` Avi Kivity
2008-08-23 9:50 ` Muli Ben-Yehuda
2008-08-23 9:55 ` Muli Ben-Yehuda
2008-08-24 10:02 ` Avi Kivity
2008-08-23 9:57 ` Muli Ben-Yehuda
2008-08-23 10:25 ` Amit Shah
2008-08-23 10:40 ` Muli Ben-Yehuda
2008-08-23 11:11 ` Amit Shah
2008-08-23 12:11 ` Muli Ben-Yehuda
2008-08-23 14:01 ` Amit Shah
2008-09-01 13:08 ` Joerg Roedel
-- strict thread matches above, loose matches on Subject: below --
2008-09-09 15:37 Amit Shah
2008-09-14 0:46 ` Avi Kivity
2008-09-23 18:57 ` Jesse Barnes
2008-09-09 14:44 Amit Shah
2008-09-09 13:50 Han, Weidong
2008-08-26 8:55 Amit Shah
2008-08-26 9:10 ` Avi Kivity
2008-08-26 14:11 ` Amit Shah
2008-08-26 14:38 ` Avi Kivity
2008-08-21 11:10 Ben-Ami Yassour
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=20080822182810.GI6885@il.ibm.com \
--to=muli@il.ibm.com \
--cc=BENAMI@il.ibm.com \
--cc=amit.shah@qumranet.com \
--cc=anthony@codemonkey.ws \
--cc=avi@qumranet.com \
--cc=david.woodhouse@intel.com \
--cc=jesse.barnes@intel.com \
--cc=kvm@vger.kernel.org \
--cc=mark.gross@intel.com \
--cc=weidong.han@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.