From: Andrea Arcangeli <andrea@qumranet.com>
To: Avi Kivity <avi@qumranet.com>
Cc: Marcelo Tosatti <marcelo.tosatti@cyclades.com.br>, kvm@vger.kernel.org
Subject: Re: [PATCH 4/6] kvm-userland.git mmu notifier compat
Date: Tue, 29 Jul 2008 15:03:35 +0200 [thread overview]
Message-ID: <20080729130335.GM11494@duo.random> (raw)
In-Reply-To: <488F11C4.5050109@qumranet.com>
On Tue, Jul 29, 2008 at 03:49:08PM +0300, Avi Kivity wrote:
> Applied; thanks. I think page pinning can be worked around by pinning all
> pages on memslot registration (and unpinning on memslot removal); this will
> slow down virtual machine startup, but is at least simple.
This has the benefit that will also fix the tlb issues, but if we go
this way if a sles/rhel user takes the next kvm release, all ram will
be pinned and it won't swap anything for him, like with my patch that
added VM_LOCKED. Said that swap wasn't a reliable feature before so
nobody should have depended on that.
If we really go this memslot-wide-pinning way I could submit to rhel
and sles a mmu notifier backport so the rhel/sles users won't have to
wait to get their kernel upgraded to 2.6.27 to get full kvm-paging.
next prev parent reply other threads:[~2008-07-29 13:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-25 14:24 [PATCH 1/6] kvm.git mmu notifier patch Andrea Arcangeli
2008-07-25 14:26 ` [PATCH 2/6] kvm.git allow reading aliases with mmu_lock Andrea Arcangeli
2008-07-25 14:32 ` [PATCH 3/6] kvm.git allow browsing memslots " Andrea Arcangeli
2008-07-25 14:38 ` [PATCH 4/6] kvm-userland.git mmu notifier compat Andrea Arcangeli
2008-07-25 14:40 ` [PATCH 5/6] kvm.git handle reserved pages as mmio Andrea Arcangeli
2008-07-25 14:44 ` [PATCH 6/6] kvm.git allow reserved pages to be used as guest phys ram Andrea Arcangeli
2008-07-29 12:49 ` [PATCH 4/6] kvm-userland.git mmu notifier compat Avi Kivity
2008-07-29 13:03 ` Andrea Arcangeli [this message]
2008-07-29 13:30 ` Avi Kivity
2008-07-29 13:37 ` Andrea Arcangeli
2008-07-28 21:51 ` [PATCH 3/6] kvm.git allow browsing memslots with mmu_lock Marcelo Tosatti
2008-07-28 22:06 ` Andrea Arcangeli
2008-07-28 21:43 ` [PATCH 2/6] kvm.git allow reading aliases " Marcelo Tosatti
2008-07-28 21:11 ` [PATCH 1/6] kvm.git mmu notifier patch Marcelo Tosatti
2008-07-28 21:15 ` Marcelo Tosatti
2008-07-29 9:31 ` Avi Kivity
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080729130335.GM11494@duo.random \
--to=andrea@qumranet.com \
--cc=avi@qumranet.com \
--cc=kvm@vger.kernel.org \
--cc=marcelo.tosatti@cyclades.com.br \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.