From: David Vrabel <david.vrabel@citrix.com>
To: Olaf Hering <olaf@aepfle.de>, xen-devel@lists.xen.org
Subject: Re: identify a Xen PV domU to fix devmem_is_allowed
Date: Tue, 1 Mar 2016 15:29:29 +0000 [thread overview]
Message-ID: <56D5B559.8000306@citrix.com> (raw)
In-Reply-To: <20160229102849.GA18202@aepfle.de>
On 29/02/16 10:28, Olaf Hering wrote:
> What is the correct way to identify a Xen PV domU in the kenrel?
> devmem_is_allowed() used to disable access to pages < 256 in domU.
> With pvops this check was removed, or never ported forward.
>
> Would this change be the correct fix?
I think the bug is in range_is_allowed() as it is using
devmem_is_allowed() to avoid having to correctly check for aliases.
David
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prev parent reply other threads:[~2016-03-01 15:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-29 10:28 identify a Xen PV domU to fix devmem_is_allowed Olaf Hering
2016-02-29 15:10 ` Konrad Rzeszutek Wilk
2016-02-29 15:29 ` Olaf Hering
2016-02-29 18:32 ` Boris Ostrovsky
2016-03-01 15:14 ` Olaf Hering
2016-03-01 10:38 ` Jan Beulich
2016-03-01 14:34 ` Konrad Rzeszutek Wilk
2016-03-01 14:45 ` Boris Ostrovsky
2016-03-15 16:57 ` Olaf Hering
2016-03-15 18:56 ` Boris Ostrovsky
2016-03-21 21:29 ` Boris Ostrovsky
2016-03-22 18:37 ` Boris Ostrovsky
2016-03-23 8:28 ` Olaf Hering
2016-06-06 21:17 ` Olaf Hering
2016-03-01 16:23 ` Olaf Hering
2016-03-01 15:29 ` David Vrabel [this message]
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