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Re: [Qemu-devel] [PATCH v7 37/42] Postcopy; Handle userfault requests
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From: |
Amit Shah |
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Subject: |
Re: [Qemu-devel] [PATCH v7 37/42] Postcopy; Handle userfault requests |
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Date: |
Mon, 27 Jul 2015 19:59:47 +0530 |
On (Tue) 16 Jun 2015 [11:26:50], Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
>
> userfaultfd is a Linux syscall that gives an fd that receives a stream
> of notifications of accesses to pages registered with it and allows
> the program to acknowledge those stalls and tell the accessing
> thread to carry on.
>
> We convert the requests from the kernel into messages back to the
> source asking for the pages.
>
> Signed-off-by: Dr. David Alan Gilbert <address@hidden>
Reviewed-by: Amit Shah <address@hidden>
Amit