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From: Ian Campbell <ian.campbell@citrix.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Mark Rutland <mark.rutland@arm.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
	"ard.biesheuvel@linaro.org" <ard.biesheuvel@linaro.org>,
	"daniel.kiper@oracle.com" <daniel.kiper@oracle.com>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"leif.lindholm@linaro.org" <leif.lindholm@linaro.org>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
	"julien.grall@citrix.com" <julien.grall@citrix.com>,
	"freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>,
	"matt.fleming@intel.com" <matt.fleming@intel.com>,
	"christoffer.dall@linaro.org" <christoffer.dall@linaro.org>,
	"jbeulich@suse.com" <jbeulich@suse.com>,
	Shannon Zhao <zhaoshenglong@huawei.com>,
	"peter.huangpeng@huawei.com" <peter.huangpeng@huawei.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infr>
Subject: Re: [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters
Date: Fri, 11 Sep 2015 12:00:00 +0100	[thread overview]
Message-ID: <1441969200.3549.23.camel__15995.5028248534$1441969304$gmane$org@citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1509101655020.2672@kaball.uk.xensource.com>

On Thu, 2015-09-10 at 17:10 +0100, Stefano Stabellini wrote:

> > C) When you could go:
> > 
> >    DT -> Discover Xen -> Xen-specific stuff -> Xen-specific EFI/ACPI
> > discovery
> 
> I take you mean discovering Xen with the usual Xen hypervisor node on
> device tree.

There may be other options, such as ARM defining an architectural mechanism
to do early detection of hypervisors e.g. by defining some bit in some
hypervisor controllable register (MPIDR?) to say "a hypervisor is present"
and defining an hvc or smc call which can be used to ask which one it is.

Ian.

  parent reply	other threads:[~2015-09-11 11:00 UTC|newest]

Thread overview: 182+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-10  8:41 [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters Shannon Zhao
2015-09-10  8:41 ` Shannon Zhao
2015-09-10  8:41 ` Shannon Zhao
2015-09-10  9:52 ` Mark Rutland
2015-09-10  9:52 ` Mark Rutland
2015-09-10  9:52   ` Mark Rutland
2015-09-10  9:52   ` Mark Rutland
2015-09-10 10:19   ` Stefano Stabellini
2015-09-10 10:19     ` Stefano Stabellini
2015-09-10 10:19     ` Stefano Stabellini
2015-09-10 11:24     ` Mark Rutland
2015-09-10 11:24       ` Mark Rutland
2015-09-10 11:24       ` Mark Rutland
2015-09-10 11:37       ` Stefano Stabellini
2015-09-10 11:37       ` Stefano Stabellini
2015-09-10 11:37         ` Stefano Stabellini
2015-09-10 11:37         ` Stefano Stabellini
2015-09-10 12:15         ` Mark Rutland
2015-09-10 12:15           ` Mark Rutland
2015-09-10 12:15           ` Mark Rutland
2015-09-10 12:58           ` [Xen-devel] " Ian Campbell
2015-09-10 12:58             ` Ian Campbell
2015-09-10 12:58             ` Ian Campbell
2015-09-10 13:08             ` Jan Beulich
2015-09-10 13:08               ` Jan Beulich
2015-09-10 13:08               ` Jan Beulich
2015-09-10 13:30               ` Ian Campbell
2015-09-10 13:30                 ` Ian Campbell
2015-09-10 13:30                 ` Ian Campbell
2015-09-10 13:30               ` Ian Campbell
2015-09-10 13:08             ` Jan Beulich
2015-09-10 12:58           ` Ian Campbell
2015-09-10 13:52           ` Stefano Stabellini
2015-09-10 13:52             ` Stefano Stabellini
2015-09-10 13:52             ` Stefano Stabellini
2015-09-10 14:13             ` Leif Lindholm
2015-09-10 14:13             ` Leif Lindholm
2015-09-10 14:13               ` Leif Lindholm
2015-09-10 14:13               ` Leif Lindholm
2015-09-10 14:49             ` Mark Rutland
2015-09-10 14:49             ` Mark Rutland
2015-09-10 14:49               ` Mark Rutland
2015-09-10 14:49               ` Mark Rutland
2015-09-10 16:10               ` Stefano Stabellini
2015-09-10 16:10               ` Stefano Stabellini
2015-09-10 16:10                 ` Stefano Stabellini
2015-09-10 16:10                 ` Stefano Stabellini
2015-09-10 16:23                 ` Mark Rutland
2015-09-10 16:23                   ` Mark Rutland
2015-09-10 16:23                   ` Mark Rutland
2015-09-11 12:46                   ` Daniel Kiper
2015-09-11 12:46                   ` Daniel Kiper
2015-09-11 12:46                     ` Daniel Kiper
2015-09-11 12:46                     ` Daniel Kiper
2015-09-11 13:14                     ` Stefano Stabellini
2015-09-11 13:14                     ` Stefano Stabellini
2015-09-11 13:14                       ` Stefano Stabellini
2015-09-11 13:14                       ` Stefano Stabellini
2015-09-11 13:30                       ` Ard Biesheuvel
2015-09-11 13:30                         ` Ard Biesheuvel
2015-09-11 13:30                         ` Ard Biesheuvel
2015-09-11 15:45                         ` Daniel Kiper
2015-09-11 15:45                         ` Daniel Kiper
2015-09-11 15:45                           ` Daniel Kiper
2015-09-11 15:45                           ` Daniel Kiper
2015-09-14  8:42                           ` Shannon Zhao
2015-09-14  8:42                             ` Shannon Zhao
2015-09-14  8:42                             ` Shannon Zhao
2015-09-14  9:09                             ` Ard Biesheuvel
2015-09-14  9:09                             ` Ard Biesheuvel
2015-09-14  9:09                               ` Ard Biesheuvel
2015-09-14  9:09                               ` Ard Biesheuvel
2015-09-14  9:31                               ` Shannon Zhao
2015-09-14  9:31                                 ` Shannon Zhao
2015-09-14  9:31                                 ` Shannon Zhao
2015-09-14  9:36                                 ` Ard Biesheuvel
2015-09-14  9:36                                   ` Ard Biesheuvel
2015-09-14  9:36                                   ` Ard Biesheuvel
2015-09-14 10:39                                   ` Jan Beulich
2015-09-14 10:39                                   ` [Xen-devel] " Jan Beulich
2015-09-14 10:39                                     ` Jan Beulich
2015-09-14 10:39                                     ` Jan Beulich
2015-09-14 11:16                                     ` Ard Biesheuvel
2015-09-14 11:16                                       ` Ard Biesheuvel
2015-09-14 11:16                                       ` Ard Biesheuvel
2015-09-14 11:34                                       ` Jan Beulich
2015-09-14 11:34                                         ` Jan Beulich
2015-09-14 11:34                                         ` Jan Beulich
2015-09-14 11:34                                       ` Jan Beulich
2015-09-14 11:16                                     ` Ard Biesheuvel
2015-09-14  9:36                                 ` Ard Biesheuvel
2015-09-11 16:33                         ` Mark Rutland
2015-09-11 16:33                         ` Mark Rutland
2015-09-11 16:33                           ` Mark Rutland
2015-09-11 16:33                           ` Mark Rutland
2015-09-11 13:30                       ` Ard Biesheuvel
2015-09-11 16:25                     ` Mark Rutland
2015-09-11 16:25                       ` Mark Rutland
2015-09-11 16:25                       ` Mark Rutland
2015-09-12 11:36                       ` Daniel Kiper
2015-09-12 11:36                       ` Daniel Kiper
2015-09-12 11:36                         ` Daniel Kiper
2015-09-12 11:36                         ` Daniel Kiper
2015-09-14  9:25                         ` Mark Rutland
2015-09-14  9:25                         ` Mark Rutland
2015-09-14  9:25                           ` Mark Rutland
2015-09-14  9:25                           ` Mark Rutland
2015-09-14  9:43                           ` Ard Biesheuvel
2015-09-14  9:43                           ` Ard Biesheuvel
2015-09-14  9:43                             ` Ard Biesheuvel
2015-09-14  9:57                             ` Ian Campbell
2015-09-14 12:28                             ` Daniel Kiper
     [not found]                             ` <CAKv+Gu9ER1cKvPHobq-wo7ggPesJj4OQ7=aTr24GVpubHvVqjQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14  9:57                               ` Ian Campbell
2015-09-14  9:57                                 ` Ian Campbell
2015-09-14 10:02                                 ` Ard Biesheuvel
     [not found]                                 ` <1442224673.3549.131.camel-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
2015-09-14 10:02                                   ` Ard Biesheuvel
2015-09-14 10:02                                     ` Ard Biesheuvel
     [not found]                                     ` <CAKv+Gu_Gh649EwdtodLY9Q28JhqYg8o6RShXXH1ZbxsfYRfi2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 10:25                                       ` Ian Campbell
2015-09-14 10:25                                         ` Ian Campbell
2015-09-14 10:25                                     ` Ian Campbell
2015-09-14 12:28                               ` Daniel Kiper
2015-09-14 12:28                                 ` Daniel Kiper
2015-09-14 13:09                                 ` Ard Biesheuvel
     [not found]                                 ` <20150914122858.GI4530-fJNZiO034lp9pOct4yEdx/3oZC3j2Omk@public.gmane.org>
2015-09-14 13:09                                   ` Ard Biesheuvel
2015-09-14 13:09                                     ` Ard Biesheuvel
     [not found]                                     ` <CAKv+Gu_z2X=9-qgoKTS7dKLqtSUvysyu9LzZryJqcSR4X8Ss6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 13:57                                       ` Daniel Kiper
2015-09-14 13:57                                         ` Daniel Kiper
2015-09-14 13:57                                     ` Daniel Kiper
2015-09-14  9:47                           ` Stefano Stabellini
2015-09-14  9:47                           ` Stefano Stabellini
2015-09-14  9:47                             ` Stefano Stabellini
2015-09-14  9:47                             ` Stefano Stabellini
2015-09-14 12:19                           ` Daniel Kiper
2015-09-14 12:19                           ` Daniel Kiper
2015-09-14 12:19                             ` Daniel Kiper
2015-09-14 12:19                             ` Daniel Kiper
2015-09-11 16:25                     ` Mark Rutland
2015-09-10 16:23                 ` Mark Rutland
2015-09-11 11:00                 ` Ian Campbell [this message]
2015-09-11 11:00                 ` Ian Campbell
2015-09-11 11:00                   ` Ian Campbell
2015-09-11 11:00                   ` Ian Campbell
2015-09-10 13:52           ` Stefano Stabellini
2015-09-10 12:15         ` Mark Rutland
2015-09-10 12:55         ` Jan Beulich
2015-09-10 12:55         ` Jan Beulich
2015-09-10 12:55           ` Jan Beulich
2015-09-10 12:55           ` Jan Beulich
2015-09-10 14:53           ` Mark Rutland
2015-09-10 14:53             ` Mark Rutland
2015-09-10 14:53             ` Mark Rutland
2015-09-10 15:06             ` Jan Beulich
2015-09-10 15:06               ` Jan Beulich
2015-09-10 15:06               ` Jan Beulich
2015-09-11 16:36               ` Mark Rutland
2015-09-11 16:36                 ` Mark Rutland
2015-09-11 16:36                 ` Mark Rutland
2015-09-11 16:36               ` Mark Rutland
2015-09-10 15:06             ` Jan Beulich
2015-09-10 11:24     ` Mark Rutland
2015-09-10 10:19   ` Stefano Stabellini
2015-09-10 11:32 ` Andrew Turner
2015-09-10 11:32 ` Andrew Turner
2015-09-10 11:32   ` Andrew Turner
2015-09-10 11:32   ` Andrew Turner
2015-09-10 11:48   ` Julien Grall
2015-09-10 11:48     ` Julien Grall
2015-09-10 11:48     ` Julien Grall
2015-09-10 12:05     ` Roger Pau Monné
2015-09-10 12:05       ` Roger Pau Monné
2015-09-10 12:05       ` Roger Pau Monné
2015-09-10 12:53       ` Julien Grall
2015-09-10 12:53       ` [Xen-devel] " Julien Grall
2015-09-10 12:53         ` Julien Grall
2015-09-10 12:53         ` Julien Grall
2015-09-10 12:05     ` Roger Pau Monné
2015-09-10 11:48   ` Julien Grall
2015-09-17 11:43 ` Shannon Zhao
2015-09-17 11:43   ` Shannon Zhao
2015-09-17 11:43   ` Shannon Zhao
2015-09-17 11:43 ` Shannon Zhao
  -- strict thread matches above, loose matches on Subject: below --
2015-09-10  8:41 Shannon Zhao

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