From: Juan Quintela <quintela@redhat.com>
To: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
Cc: qemu-devel@nongnu.org, amit.shah@redhat.com, aarcange@redhat.com
Subject: Re: [Qemu-devel] [PATCH 08/15] postcopy: Use temporary for placing zero huge pages
Date: Wed, 25 Jan 2017 11:29:41 +0100 [thread overview]
Message-ID: <87a8af77qi.fsf@emacs.mitica> (raw)
In-Reply-To: <20170106182823.1960-9-dgilbert@redhat.com> (David Alan Gilbert's message of "Fri, 6 Jan 2017 18:28:16 +0000")
"Dr. David Alan Gilbert (git)" <dgilbert@redhat.com> wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> The kernel can't do UFFDIO_ZEROPAGE for huge pages, so we have
> to allocate a temporary (always zero) page and use UFFDIO_COPYPAGE
> on it.
>
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
next prev parent reply other threads:[~2017-01-25 10:29 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-06 18:28 [Qemu-devel] [PATCH 00/15] Postcopy: Hugepage support Dr. David Alan Gilbert (git)
2017-01-06 18:28 ` [Qemu-devel] [PATCH 01/15] postcopy: Transmit and compare individual page sizes Dr. David Alan Gilbert (git)
2017-01-25 8:01 ` [Qemu-devel] [01/15] " Alexey Perevalov
2017-01-25 18:38 ` Dr. David Alan Gilbert
2017-01-25 9:47 ` [Qemu-devel] [PATCH 01/15] " Juan Quintela
2017-01-25 16:15 ` Dr. David Alan Gilbert
2017-01-06 18:28 ` [Qemu-devel] [PATCH 02/15] postcopy: Transmit ram size summary word Dr. David Alan Gilbert (git)
2017-01-25 9:53 ` Juan Quintela
2017-01-25 16:18 ` Dr. David Alan Gilbert
2017-01-06 18:28 ` [Qemu-devel] [PATCH 03/15] postcopy: Chunk discards for hugepages Dr. David Alan Gilbert (git)
2017-01-25 10:44 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 04/15] Fold postcopy_ram_discard_range into ram_discard_range Dr. David Alan Gilbert (git)
2017-01-25 10:08 ` Juan Quintela
2017-01-25 16:43 ` Dr. David Alan Gilbert
2017-01-06 18:28 ` [Qemu-devel] [PATCH 05/15] postcopy: enhance ram_discard_range for hugepages Dr. David Alan Gilbert (git)
2017-01-25 10:14 ` Juan Quintela
2017-01-30 18:49 ` Dr. David Alan Gilbert
2017-01-30 19:19 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 06/15] postcopy: Record largest page size Dr. David Alan Gilbert (git)
2017-01-25 10:17 ` Juan Quintela
2017-01-30 16:36 ` Dr. David Alan Gilbert
2017-01-30 19:22 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 07/15] postcopy: Plumb pagesize down into place helpers Dr. David Alan Gilbert (git)
2017-01-25 10:25 ` Juan Quintela
2017-01-27 15:49 ` Dr. David Alan Gilbert
2017-01-06 18:28 ` [Qemu-devel] [PATCH 08/15] postcopy: Use temporary for placing zero huge pages Dr. David Alan Gilbert (git)
2017-01-25 10:29 ` Juan Quintela [this message]
2017-01-06 18:28 ` [Qemu-devel] [PATCH 09/15] postcopy: Load huge pages in one go Dr. David Alan Gilbert (git)
2017-01-25 10:31 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 10/15] postcopy: Mask fault addresses to huge page boundary Dr. David Alan Gilbert (git)
2017-01-31 13:20 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 11/15] postcopy: Send whole huge pages Dr. David Alan Gilbert (git)
2017-01-31 13:20 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 12/15] postcopy: Allow hugepages Dr. David Alan Gilbert (git)
2017-01-31 13:21 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 13/15] postcopy: Update userfaultfd.h header Dr. David Alan Gilbert (git)
2017-01-31 13:22 ` Juan Quintela
2017-01-06 18:28 ` [Qemu-devel] [PATCH 14/15] postcopy: Check for userfault+hugepage feature Dr. David Alan Gilbert (git)
2017-01-31 13:24 ` Juan Quintela
2017-01-31 16:20 ` Dr. David Alan Gilbert
2017-01-06 18:28 ` [Qemu-devel] [PATCH 15/15] postcopy: Add doc about hugepages and postcopy Dr. David Alan Gilbert (git)
2017-01-31 13:25 ` Juan Quintela
2017-01-06 18:51 ` [Qemu-devel] [PATCH 00/15] Postcopy: Hugepage support no-reply
2017-01-06 18:59 ` Dr. David Alan Gilbert
2017-01-09 0:55 ` Fam Zheng
2017-01-09 9:03 ` Dr. David Alan Gilbert
2017-01-06 19:02 ` no-reply
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