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Re: [RFC PATCH 1/9] vfio/pci: introduce mediate ops to intercept vfio-pc

From: Eric Blake
Subject: Re: [RFC PATCH 1/9] vfio/pci: introduce mediate ops to intercept vfio-pci ops
Date: Fri, 6 Dec 2019 17:13:30 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2

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


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


Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

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