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Re: [Qemu-devel] [PATCH v2 2/2] intel_iommu: Fix unexpected unmaps durin
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From: |
Peter Xu |
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Subject: |
Re: [Qemu-devel] [PATCH v2 2/2] intel_iommu: Fix unexpected unmaps during global unmap |
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Date: |
Thu, 4 Jul 2019 16:17:48 +0800 |
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User-agent: |
Mutt/1.11.4 (2019-03-13) |
On Thu, Jul 04, 2019 at 01:45:41PM +0800, Jason Wang wrote:
>
> On 2019/6/24 下午5:18, Peter Xu wrote:
> > This is an replacement work of Yan Zhao's patch:
> >
> > https://www.mail-archive.com/address@hidden/msg625340.html
> >
> > vtd_address_space_unmap() will do proper page mask alignment to make
> > sure each IOTLB message will have correct masks for notification
> > messages (2^N-1), but sometimes it can be expanded to even supercede
> > the registered range.
>
>
> I wonder under what circumstance that could we meet this?
Sorry I forgot to reply-all just now...
I've asked a similar question, and Yan's answer is here:
https://www.mail-archive.com/address@hidden/msg625597.html
Regards,
--
Peter Xu