Message-ID: <4C0BA627.5010005@redhat.com>
Date: Sun, 06 Jun 2010 16:44:07 +0300
From: Avi Kivity <avi@redhat.com>
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-3.fc13 Thunderbird/3.0.4
MIME-Version: 1.0
To: Chris Wright <chrisw@sous-sol.org>
CC: Joerg Roedel <joro@8bytes.org>, "Michael S. Tsirkin" <mst@redhat.com>,
       Tom Lyon <pugs@cisco.com>, linux-kernel@vger.kernel.org,
       kvm@vger.kernel.org, hjk@linutronix.de, gregkh@suse.de,
       aafabbri@cisco.com, scofeldm@cisco.com
Subject: Re: [PATCH] VFIO driver: Non-privileged user level PCI drivers
References: <20100531171007.GA6516@redhat.com> <4C04C085.1030107@redhat.com> <20100601095532.GA9178@redhat.com> <4C04E0E0.3070006@redhat.com> <20100601104651.GA9415@redhat.com> <4C050013.2020701@redhat.com> <20100602094527.GD964@8bytes.org> <4C062928.8040003@redhat.com> <20100602100404.GF964@8bytes.org> <4C063ECB.8010706@redhat.com> <20100602165321.GU8301@sequoia.sous-sol.org>
In-Reply-To: <20100602165321.GU8301@sequoia.sous-sol.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 830
Lines: 22

On 06/02/2010 07:53 PM, Chris Wright wrote:
> * Avi Kivity (avi@redhat.com) wrote:
>    
>> The interface would only work for clients which support it: kvm,
>> vhost, and iommu/devices with restartable dma.
>>      
> BTW, there is no such thing as restartable dma.  There is a provision in
> new specs (read: no real hardware) that allows a device to request pages
> before using them.  So it's akin to demand paging, but the demand is an
> explicit request rather than a page fault.
>    

Thanks for the correction.

-- 
error compiling committee.c: too many arguments to function

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/