From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: kvm-ppc@vger.kernel.org
Subject: RE: re-writing on powerpc
Date: Fri, 17 Dec 2010 21:59:44 +0000 [thread overview]
Message-ID: <1292623184.16694.551.camel@pasglop> (raw)
In-Reply-To: <FD1A71B048BD854792EE753E0E9F27DE80A7@az33exm20>
On Wed, 2010-12-15 at 11:32 +0000, Sethi Varun-B16395 wrote:
> > kvm isn't aware of all guest mappings (only those that were instantiated
> > in shadow tlb/pagetables).
> I am not sure if I understand, but guest would have to be instantiate the mapping in the tlb (for BookE) before page can be accessed.
> That's when we can set the access permissions.
But then you need to track them and add overhead to your TLB management,
which you really don't want.
Ben.
next prev parent reply other threads:[~2010-12-17 21:59 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-13 4:45 re-writing on powerpc Yoder Stuart-B08248
2010-12-13 8:35 ` Avi Kivity
2010-12-13 8:42 ` Alexander Graf
2010-12-13 8:45 ` Avi Kivity
2010-12-13 17:12 ` Hollis Blanchard
2010-12-13 17:15 ` Avi Kivity
2010-12-13 17:17 ` Hollis Blanchard
2010-12-13 19:03 ` Scott Wood
2010-12-13 23:54 ` Alexander Graf
2010-12-14 0:18 ` Scott Wood
2010-12-14 0:24 ` Alexander Graf
2010-12-14 8:40 ` Avi Kivity
2010-12-14 8:42 ` Avi Kivity
2010-12-14 8:48 ` Avi Kivity
2010-12-14 9:08 ` Alexander Graf
2010-12-14 15:45 ` Yoder Stuart-B08248
2010-12-14 15:48 ` Avi Kivity
2010-12-14 16:55 ` Scott Wood
2010-12-14 17:48 ` Alexander Graf
2010-12-14 17:53 ` Hollis Blanchard
2010-12-14 18:37 ` Scott Wood
2010-12-14 18:41 ` Scott Wood
2010-12-14 20:04 ` Scott Wood
2010-12-14 23:00 ` Alexander Graf
2010-12-14 23:17 ` Scott Wood
2010-12-14 23:29 ` Alexander Graf
2010-12-15 0:00 ` Scott Wood
2010-12-15 0:13 ` Alexander Graf
2010-12-15 0:57 ` Andreas Färber
2010-12-15 9:48 ` Avi Kivity
2010-12-15 11:16 ` Sethi Varun-B16395
2010-12-15 11:18 ` Avi Kivity
2010-12-15 11:32 ` Sethi Varun-B16395
2010-12-15 12:25 ` Avi Kivity
2010-12-17 21:59 ` Benjamin Herrenschmidt [this message]
2010-12-17 22:00 ` Benjamin Herrenschmidt
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