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Re: [Qemu-devel] [PATCH RFC v3 14/14] intel_iommu: enable vfio devices


From: Peter Xu
Subject: Re: [Qemu-devel] [PATCH RFC v3 14/14] intel_iommu: enable vfio devices
Date: Thu, 19 Jan 2017 17:38:08 +0800
User-agent: Mutt/1.5.24 (2015-08-30)

On Thu, Jan 19, 2017 at 06:22:48AM +0000, Tian, Kevin wrote:

[...]

> still copy response from spec owner here:-)
> 
>       Explicit invalidation is anytime software is explicitly invalidating 
> something (
>       through any descriptor) as opposed to something hardware does 
> implicitly.  
>       The only time hardware does implicit invalidation is during the 
> handling of a page 
>       request (recoverable page-fault) from an endpoint device.

Thanks for the confirmation!

-- peterx



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