From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [Xen-devel] [PATCH v2 5/6] ARM: Dummy Virtual Machine platform support
Date: Thu, 20 Dec 2012 13:25:00 +0000 [thread overview]
Message-ID: <50D311AC.6060309@arm.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1212201310080.17523@kaball.uk.xensource.com>
On 20/12/12 13:12, Stefano Stabellini wrote:
> On Wed, 19 Dec 2012, Christopher Covington wrote:
>>> What would be the point of using DCC?
>>
>> It seemed like ARM-Ltd.-architected peripherals were picked for the timer and
>> interrupt controller, so I wondered why not for the console as well. As best
>> I'm aware, unless one ventures into the PrimeCell line with the PL011, DCC is
>> the closest match for an officially architected console mechanism.
>
> I certainly wouldn't want to mandate the presence of any devices that
> require emulation in the DT for a virtual machine, including DCC, as
> simple as it might be.
Indeed. GIC and timers have explicit support for virtualization in
hardware. Emulating random IPs is up to the implementor, and given that
virtio already exists (and performs rather well), I don't feel the urge
to reinvent the wheel.
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2012-12-20 13:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-17 16:35 [PATCH v2 0/6] Add support for a fake, para-virtualised machine Will Deacon
2012-12-17 16:35 ` [PATCH v2 1/6] ARM: opcodes: add missing include of linux/linkage.h Will Deacon
2012-12-17 16:35 ` [PATCH v2 2/6] ARM: opcodes: add opcodes definitions for ARM security extensions Will Deacon
2012-12-17 16:35 ` [PATCH v2 3/6] ARM: psci: add devicetree binding for describing PSCI firmware Will Deacon
2012-12-17 20:00 ` Arnd Bergmann
2012-12-18 10:08 ` Will Deacon
2012-12-17 16:35 ` [PATCH v2 4/6] ARM: psci: add support for PSCI invocations from the kernel Will Deacon
2012-12-17 20:51 ` Nicolas Pitre
2012-12-18 10:11 ` Will Deacon
2012-12-18 21:59 ` Nicolas Pitre
2012-12-19 11:27 ` Will Deacon
2012-12-17 16:35 ` [PATCH v2 5/6] ARM: Dummy Virtual Machine platform support Will Deacon
2012-12-18 12:04 ` [Xen-devel] " Stefano Stabellini
2012-12-18 13:14 ` Will Deacon
2012-12-18 13:32 ` Stefano Stabellini
2012-12-18 18:01 ` Christopher Covington
2012-12-18 18:18 ` Marc Zyngier
2012-12-19 15:25 ` Christopher Covington
2012-12-20 13:12 ` Stefano Stabellini
2012-12-20 13:25 ` Marc Zyngier [this message]
2012-12-17 16:35 ` [PATCH v2 6/6] ARM: mach-virt: add SMP support using PSCI Will Deacon
2012-12-17 21:45 ` Nicolas Pitre
2012-12-18 10:49 ` Will Deacon
2012-12-18 12:19 ` [Xen-devel] " Stefano Stabellini
2012-12-18 13:12 ` Marc Zyngier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=50D311AC.6060309@arm.com \
--to=marc.zyngier@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.