From: Anthony Liguori <anthony@codemonkey.ws>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: schwidefsky@de.ibm.com, linux-kernel@vger.kernel.org,
linux-s390@vger.kernel.org, virtualization@lists.osdl.org,
akpm@osdl.org, nickpiggin@yahoo.com.au, frankeh@watson.ibm.com,
hugh@veritas.com
Subject: Re: [patch 6/6] Guest page hinting: s390 support.
Date: Wed, 12 Mar 2008 15:04:12 -0500 [thread overview]
Message-ID: <47D8373C.40105@codemonkey.ws> (raw)
In-Reply-To: <47D81771.5070400@goop.org>
Jeremy Fitzhardinge wrote:
>> With stable_if_clean you are refering to stable_if_present?
>
> No. I misunderstood and thought that stable_if_present sets the Px
> state. I'd overlooked the writable flag on page_set_volatile().
>
>> If yes the
>> answer is that this operation is used to get a page from Vx/Px back to
>> Sx but only if the page has not been discarded.
>
> So you mean it will change Vr/Pr to Sr but everything else will fail?
Well presumably Vp/Pr => Sp? Is is true that from the guest's
perspective, all of the 'p' states are identical to the 'r' states?
Do the host states even really need visibility to the guest at all? It
may be useful for the guest to be able to distinguish between Ur and Uz
but it doesn't seem necessary.
BTW Jeremy, the .dot was very useful!
Regards,
Anthony Liguori
next prev parent reply other threads:[~2008-03-12 20:04 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-12 13:21 [patch 0/6] Guest page hinting version 6 Martin Schwidefsky
2008-03-12 13:21 ` [patch 1/6] Guest page hinting: core + volatile page cache Martin Schwidefsky
2008-03-12 23:12 ` Rusty Russell
2008-03-13 9:24 ` Martin Schwidefsky
2008-03-12 13:21 ` [patch 2/6] Guest page hinting: volatile swap cache Martin Schwidefsky
2008-03-12 13:21 ` [patch 3/6] Guest page hinting: mlocked pages Martin Schwidefsky
2008-03-12 23:27 ` Rusty Russell
2008-03-13 9:13 ` Martin Schwidefsky
2008-03-12 13:21 ` [patch 4/6] Guest page hinting: writable page table entries Martin Schwidefsky
2008-03-12 23:35 ` Rusty Russell
2008-03-13 9:11 ` Martin Schwidefsky
2008-03-12 13:21 ` [patch 5/6] Guest page hinting: minor fault optimization Martin Schwidefsky
2008-03-12 13:21 ` [patch 6/6] Guest page hinting: s390 support Martin Schwidefsky
2008-03-12 16:19 ` Jeremy Fitzhardinge
2008-03-12 16:28 ` Martin Schwidefsky
2008-03-12 16:44 ` Jeremy Fitzhardinge
2008-03-12 16:59 ` Martin Schwidefsky
2008-03-12 17:48 ` Jeremy Fitzhardinge
2008-03-12 20:04 ` Anthony Liguori [this message]
2008-03-12 20:45 ` Jeremy Fitzhardinge
2008-03-12 20:56 ` Anthony Liguori
2008-03-12 21:36 ` Jeremy Fitzhardinge
2008-03-13 9:45 ` Martin Schwidefsky
2008-03-13 16:07 ` Jeremy Fitzhardinge
2008-03-13 16:17 ` Jeremy Fitzhardinge
2008-03-13 16:55 ` Martin Schwidefsky
2008-03-13 17:05 ` Jeremy Fitzhardinge
2008-03-13 17:23 ` Martin Schwidefsky
2008-03-13 9:42 ` Martin Schwidefsky
2008-03-13 9:36 ` Martin Schwidefsky
2008-03-13 9:32 ` Martin Schwidefsky
2008-03-12 22:41 ` [patch 0/6] Guest page hinting version 6 Rusty Russell
2008-03-13 9:47 ` Martin Schwidefsky
2008-03-13 16:57 ` Hugh Dickins
2008-03-13 17:14 ` Martin Schwidefsky
2008-03-13 17:45 ` Zachary Amsden
2008-03-13 19:45 ` Andrea Arcangeli
2008-03-13 21:41 ` Zachary Amsden
2008-03-13 18:41 ` Jeremy Fitzhardinge
2008-03-13 18:55 ` Hugh Dickins
2008-03-13 19:53 ` Zachary Amsden
2008-03-14 18:30 ` Jeremy Fitzhardinge
2008-03-14 21:32 ` Zachary Amsden
2008-03-14 21:37 ` Jeremy Fitzhardinge
2008-03-17 9:21 ` Martin Schwidefsky
2008-05-06 15:33 ` Martin Schwidefsky
2008-05-06 19:46 ` Rik van Riel
2008-05-07 3:49 ` Zachary Amsden
2008-05-07 7:00 ` Martin Schwidefsky
-- strict thread matches above, loose matches on Subject: below --
2009-03-27 15:09 [patch 0/6] Guest page hinting version 7 Martin Schwidefsky
2009-03-27 15:09 ` [patch 6/6] Guest page hinting: s390 support Martin Schwidefsky
2009-04-01 16:18 ` Rik van Riel
[not found] <20070628164049.118610355@de.ibm.com>
2007-06-28 16:40 ` Martin Schwidefsky
2007-05-11 13:58 [patch 0/6] [rfc] guest page hinting version 5 Martin Schwidefsky
2007-05-11 13:58 ` [patch 6/6] Guest page hinting: s390 support Martin Schwidefsky
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