From: Stefan Hajnoczi <stefanha@gmail.com>
To: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
Cc: qemu-devel@nongnu.org, imammedo@redhat.com,
maxime.coquelin@redhat.com, mst@redhat.com
Subject: Re: [Qemu-devel] [RFC 0/7] Rework vhost memory region updates
Date: Fri, 1 Dec 2017 10:02:20 +0000 [thread overview]
Message-ID: <20171201100220.GE23501@stefanha-x1.localdomain> (raw)
In-Reply-To: <20171129185026.23632-1-dgilbert@redhat.com>
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On Wed, Nov 29, 2017 at 06:50:19PM +0000, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> Hi,
> This is an experimental set that reworks the way the vhost
> code handles changes in physical address space layout that
> came from a discussion with Igor.
>
> Instead of updating and trying to merge sections of address
> space on each add/remove callback, we wait until the commit phase
> and go through and rebuild a list by walking the Flatview of
> memory and end up producing an ordered list.
> We compare the list to the old list to trigger updates.
>
> Note, only very lightly tested so far, I'm just trying to see if it's
> the right shape.
The cover letter doesn't mention why this change is necessary. It would
be helpful to know :).
Stefan
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next prev parent reply other threads:[~2017-12-01 15:52 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 18:50 [Qemu-devel] [RFC 0/7] Rework vhost memory region updates Dr. David Alan Gilbert (git)
2017-11-29 18:50 ` [Qemu-devel] [RFC 1/7] memory: address_space_iterate Dr. David Alan Gilbert (git)
2017-11-29 18:50 ` [Qemu-devel] [RFC 2/7] vhost: Move log_dirty check Dr. David Alan Gilbert (git)
2017-11-29 18:50 ` [Qemu-devel] [RFC 3/7] vhost: New memory update functions Dr. David Alan Gilbert (git)
2017-11-30 15:48 ` Igor Mammedov
2017-12-05 18:25 ` Dr. David Alan Gilbert
2017-11-29 18:50 ` [Qemu-devel] [RFC 4/7] vhost: update_mem_cb implementation Dr. David Alan Gilbert (git)
2017-11-30 11:27 ` Igor Mammedov
2017-12-06 20:09 ` Dr. David Alan Gilbert
2017-11-29 18:50 ` [Qemu-devel] [RFC 5/7] vhost: Compare new and old memory lists Dr. David Alan Gilbert (git)
2017-11-29 18:50 ` [Qemu-devel] [RFC 6/7] vhost: Copy updated region data into device state Dr. David Alan Gilbert (git)
2017-11-29 18:50 ` [Qemu-devel] [RFC 7/7] vhost: Remove vhost_set_memory and children Dr. David Alan Gilbert (git)
2017-11-30 11:22 ` [Qemu-devel] [RFC 0/7] Rework vhost memory region updates Igor Mammedov
2017-11-30 12:08 ` Dr. David Alan Gilbert
2017-11-30 12:40 ` Igor Mammedov
2017-11-30 12:47 ` Dr. David Alan Gilbert
2017-11-30 12:58 ` Igor Mammedov
2017-11-30 13:06 ` Dr. David Alan Gilbert
2017-11-30 15:08 ` Igor Mammedov
2017-11-30 15:18 ` Dr. David Alan Gilbert
2017-11-30 15:32 ` Igor Mammedov
2017-11-30 15:41 ` Dr. David Alan Gilbert
2017-11-30 16:51 ` Greg Kurz
2017-12-01 10:02 ` Stefan Hajnoczi [this message]
2017-12-01 10:19 ` Dr. David Alan Gilbert
2017-12-01 14:22 ` [Qemu-devel] [RFC] vhost: check if ring mapping is still valid when building memmap Igor Mammedov
2017-12-07 18:17 ` Dr. David Alan Gilbert
2017-12-08 14:42 ` Igor Mammedov
2017-12-08 17:51 ` Dr. David Alan Gilbert
2017-12-11 9:37 ` Igor Mammedov
2017-12-11 11:03 ` Dr. David Alan Gilbert
2017-12-11 13:45 ` Igor Mammedov
2017-12-11 15:43 ` Dr. David Alan Gilbert
2017-12-08 20:45 ` Dr. David Alan Gilbert
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