From: Julien Grall <julien.grall@linaro.org>
To: Pavlo Suikov <pavlo.suikov@globallogic.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
xen-devel@lists.xen.org
Subject: Re: xentrace, arm, hvm
Date: Sat, 08 Feb 2014 21:04:02 +0000 [thread overview]
Message-ID: <52F69BC2.8010103@linaro.org> (raw)
In-Reply-To: <CAE4oM6wFyRMXw==kkHFr0Gy7JS9=GZQyJ5grHQRr82CdT+gbOw@mail.gmail.com>
Hi Pavlo,
On 08/02/14 15:51, Pavlo Suikov wrote:
> After making a quick workaround to rcu_lock DOMAIN_XEN on arm (in the
> quite same manner it is done in x86) I've faced different problem.
> Specifically, p2m_lookup for an address in the xen restricted heap fails
> on the very first map call: p2m_map_first returns zero page due to both
> p2m->first_level and p2m_first_level_index(addr) equal to zero. As far
> as I understand xen simply does not know how to make p2m translation for
> it's own restricted heap on arm. Am I right?
Another thing to take into account, xen heap pages can be mapped
read-only or read-write. You will have to check that when the page is
mapped into the domain.
--
Julien Grall
prev parent reply other threads:[~2014-02-08 21:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-03 17:32 xentrace, arm, hvm Pavlo Suikov
2014-02-03 20:32 ` Julien Grall
2014-02-04 12:39 ` Pavlo Suikov
2014-02-04 13:31 ` Julien Grall
2014-02-04 13:57 ` Ian Campbell
2014-02-08 15:51 ` Pavlo Suikov
2014-02-08 16:53 ` Julien Grall
2014-02-08 21:04 ` Julien Grall [this message]
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