From: Ian Campbell <Ian.Campbell@citrix.com>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
Pawel Moll <Pawel.Moll@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"konrad.wilk@oracle.com" <konrad.wilk@oracle.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH] arm: introduce a DTS for Xen unprivileged virtual machines
Date: Thu, 20 Sep 2012 14:30:26 +0100 [thread overview]
Message-ID: <1348147826.26501.47.camel@zakaz.uk.xensource.com> (raw)
In-Reply-To: <505B0C00.5010003@arm.com>
On Thu, 2012-09-20 at 13:28 +0100, Marc Zyngier wrote:
> I think the important thing here is that the memory map is RS1. As this
> is a (very limited) subset of a vexpress A15, it seems to make some sense.
Looking at arch/arm/boot/dts/vexpress-v2m-rs1.dtsi I don't think we
provide anything which is on rs1 though.
The Xen VM environment has only a gic (via a combination of the gic
virtualisation mode for CPU regs and emulation for the distributor), the
arch timers and xenbus (which is the s/w bus which Xen uses to discover
its paravirtualised peripherals).
Currently we provide a very simple output only emulation of UART0,
simply to get the debug output from the decompresser, but we want that
to go away not get baked in.
Ian.
next prev parent reply other threads:[~2012-09-20 13:30 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 17:44 Stefano Stabellini
2012-09-20 10:06 ` Pawel Moll
2012-09-20 11:18 ` Dave Martin
2012-09-20 12:02 ` Stefano Stabellini
2012-09-20 21:29 ` Konrad Rzeszutek Wilk
2012-09-21 11:17 ` Stefano Stabellini
2012-09-20 11:39 ` Stefano Stabellini
2012-09-20 11:55 ` Pawel Moll
2012-09-20 12:15 ` Stefano Stabellini
2012-09-20 12:28 ` Marc Zyngier
2012-09-20 13:30 ` Ian Campbell [this message]
2012-09-20 13:50 ` Marc Zyngier
2012-09-20 10:17 ` Ian Campbell
2012-09-20 11:56 ` Stefano Stabellini
2012-09-20 12:18 ` Ian Campbell
2012-09-20 12:39 ` Stefano Stabellini
2012-09-20 13:16 ` Ian Campbell
2012-09-20 13:27 ` Arnd Bergmann
2012-09-20 14:11 ` Stefano Stabellini
2012-09-20 14:24 ` Pawel Moll
2012-09-20 10:45 ` [Xen-devel] " David Vrabel
2012-09-20 11:21 ` Dave Martin
2012-09-20 12:04 ` Stefano Stabellini
2012-09-20 12:57 ` Dave Martin
2012-09-20 12:00 ` Stefano Stabellini
2012-09-20 20:26 ` Rob Herring
2012-09-21 11:14 ` Stefano Stabellini
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