From: Christoph Lameter <clameter@sgi.com>
To: Avi Kivity <avi@qumranet.com>
Cc: Robin Holt <holt@sgi.com>, Andrea Arcangeli <andrea@qumranet.com>,
kvm-devel@lists.sourceforge.net, linux-mm@kvack.org,
Daniel J Blueman <daniel.blueman@quadrics.com>
Subject: Re: [kvm-devel] mmu notifiers
Date: Mon, 14 Jan 2008 11:51:29 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0801141150010.8300@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <478A03D8.9050308@qumranet.com>
On Sun, 13 Jan 2008, Avi Kivity wrote:
> I was just explaining how kvm shares memory among guests (which does not
> require mmu notifiers); if you have some other configuration that can benefit
> from mmu notifiers, then, well, great.
I think you have two page tables pointing to the same memory location
right (not to page structs but two ptes)? Without a mmu notifier the pages
in this memory range cannot be evicted because otherwise ptes of the other
instance will point to a page that is now used for a different purpose.
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next prev parent reply other threads:[~2008-01-14 19:51 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-09 18:19 Andrea Arcangeli
2008-01-09 21:54 ` Christoph Lameter
2008-01-10 11:44 ` [kvm-devel] " Avi Kivity
2008-01-10 13:16 ` Robin Holt
2008-01-10 13:27 ` Avi Kivity
2008-01-10 14:50 ` Robin Holt
2008-01-10 19:06 ` Christoph Lameter
2008-01-12 19:56 ` Avi Kivity
2008-01-10 19:04 ` Christoph Lameter
2008-01-12 19:51 ` Avi Kivity
2008-01-13 12:09 ` Robin Holt
2008-01-13 12:28 ` Avi Kivity
2008-01-14 19:51 ` Christoph Lameter [this message]
2008-01-15 7:43 ` Avi Kivity
2008-01-14 19:49 ` Christoph Lameter
2008-01-15 7:38 ` Avi Kivity
2008-01-15 17:39 ` Christoph Lameter
2008-01-15 17:53 ` Avi Kivity
2008-01-15 17:57 ` Christoph Lameter
2008-01-15 18:06 ` Avi Kivity
2008-01-15 18:16 ` Christoph Lameter
2008-01-16 7:39 ` Avi Kivity
2008-01-16 18:08 ` Christoph Lameter
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