From: Julien Grall <julien.grall@linaro.org>
To: Tamas Lengyel <tamas.lengyel@zentific.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Wei Huang <w1.huang@samsung.com>,
Ian Campbell <Ian.Campbell@citrix.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: ARM Guest VM Type
Date: Sun, 27 Apr 2014 20:33:46 +0100 [thread overview]
Message-ID: <535D5B9A.7000505@linaro.org> (raw)
In-Reply-To: <CAErYnsjT+2jvhcoPLjv-+h_jk8o9WFsJiSTCtwUXpwsshzB1kw@mail.gmail.com>
Hello Tamas,
On 27/04/14 11:25, Tamas Lengyel wrote:
> What about paging? On x86 it's configurable whether I want the guest to
> use shadow or HAP via hap=0/1 but I haven't find anything about that for
> the ARM side. Looking at the source I got the feeling that it's shadow
> paging if the guest is created with the config shown in
> http://wiki.xenproject.org/wiki/Xen_ARM_with_Virtualization_Extensions#DomU_kernel_and_DTS.
> Please correct me if I'm wrong! Thanks =)
Xen on ARM takes directly advantage of the hardware virtualization
feature. ARM processors provide a stage 2 translation (i.e guest PA ->
host PA).
We don't support other kind of P2M translation (such as shadow PT) on ARM.
Regards,
--
Julien Grall
next prev parent reply other threads:[~2014-04-27 19:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-25 21:59 ARM Guest VM Type Wei Huang
2014-04-26 14:17 ` Stefano Stabellini
2014-04-27 10:25 ` Tamas Lengyel
2014-04-27 19:33 ` Julien Grall [this message]
2014-04-28 8:25 ` Ian Campbell
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