From: Christopher Covington <cov@codeaurora.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>,
Alexandre Courbot <gnurou@gmail.com>,
Kukjin Kim <kgene.kim@samsung.com>,
Stephen Warren <swarren@nvidia.com>,
Tomasz Figa <t.figa@samsung.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Kyungmin Park <kyungmin.park@samsung.com>,
"linux-samsung-soc@vger.kernel.org"
<linux-samsung-soc@vger.kernel.org>,
Alex Courbot <acourbot@nvidia.com>,
Olof Johansson <olof@lixom.net>,
Russell King <linux@arm.linux.org.uk>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] ARM: move firmware_ops to drivers/firmware
Date: Mon, 18 Nov 2013 14:04:50 -0500 [thread overview]
Message-ID: <528A64D2.4020107@codeaurora.org> (raw)
In-Reply-To: <20131118173047.GF9838@arm.com>
Hi Catalin,
On 11/18/2013 12:30 PM, Catalin Marinas wrote:
[...]
> You can't run legacy AArch32 code at EL3 and have lower levels in AArch64
> mode (architectural constraint).
What prevents AArch32 code from running at EL3 and then requesting a reset to
AArch64 by writing to the Reset Management Register before sliding down to
lower exception levels?
Thanks,
Christopher
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by the Linux Foundation.
WARNING: multiple messages have this Message-ID (diff)
From: cov@codeaurora.org (Christopher Covington)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: move firmware_ops to drivers/firmware
Date: Mon, 18 Nov 2013 14:04:50 -0500 [thread overview]
Message-ID: <528A64D2.4020107@codeaurora.org> (raw)
In-Reply-To: <20131118173047.GF9838@arm.com>
Hi Catalin,
On 11/18/2013 12:30 PM, Catalin Marinas wrote:
[...]
> You can't run legacy AArch32 code at EL3 and have lower levels in AArch64
> mode (architectural constraint).
What prevents AArch32 code from running at EL3 and then requesting a reset to
AArch64 by writing to the Reset Management Register before sliding down to
lower exception levels?
Thanks,
Christopher
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by the Linux Foundation.
next prev parent reply other threads:[~2013-11-18 19:04 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-17 8:49 [PATCH] ARM: move firmware_ops to drivers/firmware Alexandre Courbot
2013-11-17 8:49 ` Alexandre Courbot
2013-11-17 15:59 ` Catalin Marinas
2013-11-17 15:59 ` Catalin Marinas
2013-11-18 3:05 ` Alex Courbot
2013-11-18 3:05 ` Alex Courbot
2013-11-18 11:58 ` Catalin Marinas
2013-11-18 11:58 ` Catalin Marinas
2013-11-18 11:58 ` Catalin Marinas
2013-11-18 17:03 ` Stephen Warren
2013-11-18 17:03 ` Stephen Warren
2013-11-18 17:10 ` Russell King - ARM Linux
2013-11-18 17:10 ` Russell King - ARM Linux
2013-11-18 17:18 ` Stephen Warren
2013-11-18 17:18 ` Stephen Warren
2013-11-18 17:30 ` Catalin Marinas
2013-11-18 17:30 ` Catalin Marinas
2013-11-18 17:52 ` Stephen Warren
2013-11-18 17:52 ` Stephen Warren
2013-11-19 11:38 ` Catalin Marinas
2013-11-19 11:38 ` Catalin Marinas
2013-11-19 11:38 ` Catalin Marinas
2013-11-18 19:04 ` Christopher Covington [this message]
2013-11-18 19:04 ` Christopher Covington
2013-11-19 11:02 ` Catalin Marinas
2013-11-19 11:02 ` Catalin Marinas
2013-11-19 11:02 ` Catalin Marinas
2013-11-19 2:46 ` Alex Courbot
2013-11-19 2:46 ` Alex Courbot
2013-11-19 12:26 ` Catalin Marinas
2013-11-19 12:26 ` Catalin Marinas
2013-11-19 12:26 ` Catalin Marinas
2013-11-19 14:29 ` Alexandre Courbot
2013-11-19 14:29 ` Alexandre Courbot
2013-11-19 15:07 ` Catalin Marinas
2013-11-19 15:07 ` Catalin Marinas
2013-11-19 15:07 ` Catalin Marinas
2013-11-19 15:17 ` Alexandre Courbot
2013-11-19 15:17 ` Alexandre Courbot
2013-11-18 17:00 ` Stephen Warren
2013-11-18 17:00 ` Stephen Warren
2013-11-18 17:23 ` Catalin Marinas
2013-11-18 17:23 ` Catalin Marinas
2013-11-18 17:14 ` Russell King - ARM Linux
2013-11-18 17:14 ` Russell King - ARM Linux
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=528A64D2.4020107@codeaurora.org \
--to=cov@codeaurora.org \
--cc=acourbot@nvidia.com \
--cc=catalin.marinas@arm.com \
--cc=gnurou@gmail.com \
--cc=kgene.kim@samsung.com \
--cc=kyungmin.park@samsung.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=olof@lixom.net \
--cc=swarren@nvidia.com \
--cc=swarren@wwwdotorg.org \
--cc=t.figa@samsung.com \
/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.