Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Sun, 8 Dec 2019 22:17:42 -0500
From:   Yan Zhao <yan.y.zhao@intel.com>
To:     Eric Blake <eblake@redhat.com>
Cc:     "alex.williamson@redhat.com" <alex.williamson@redhat.com>,
        "Tian, Kevin" <kevin.tian@intel.com>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
        "libvir-list@redhat.com" <libvir-list@redhat.com>,
        "cohuck@redhat.com" <cohuck@redhat.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "zhenyuw@linux.intel.com" <zhenyuw@linux.intel.com>,
        "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
        "He, Shaopeng" <shaopeng.he@intel.com>,
        "Wang, Zhi A" <zhi.a.wang@intel.com>
Subject: Re: [RFC PATCH 1/9] vfio/pci: introduce mediate ops to intercept
 vfio-pci ops
Message-ID: <20191209031742.GJ31791@joy-OptiPlex-7040>
Reply-To: Yan Zhao <yan.y.zhao@intel.com>
References: <20191205032419.29606-1-yan.y.zhao@intel.com>
 <20191205032536.29653-1-yan.y.zhao@intel.com>
 <9461f821-73fd-a66f-e142-c1a55e38e7a0@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <9461f821-73fd-a66f-e142-c1a55e38e7a0@redhat.com>
User-Agent: Mutt/1.9.4 (2018-02-28)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Sorry about that. I'll pay attention to them next time and thank you for
pointing them out :)

On Sat, Dec 07, 2019 at 07:13:30AM +0800, Eric Blake wrote:
> On 12/4/19 9:25 PM, Yan Zhao wrote:
> > when vfio-pci is bound to a physical device, almost all the hardware
> > resources are passthroughed.
> 
> The intent is obvious, but it sounds awkward to a native speaker.
> s/passthroughed/passed through/
> 
> > Sometimes, vendor driver of this physcial device may want to mediate some
> 
> physical
> 
> > hardware resource access for a short period of time, e.g. dirty page
> > tracking during live migration.
> > 
> > Here we introduce mediate ops in vfio-pci for this purpose.
> > 
> > Vendor driver can register a mediate ops to vfio-pci.
> > But rather than directly bind to the passthroughed device, the
> 
> passed-through
> 
> -- 
> Eric Blake, Principal Software Engineer
> Red Hat, Inc.           +1-919-301-3226
> Virtualization:  qemu.org | libvirt.org
>