Linux-ARM-MSM Archive on lore.kernel.org
 help / color / Atom feed
From: Stephen Boyd <swboyd@chromium.org>
To: Marc Zyngier <maz@kernel.org>
Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
	Mark Rutland <mark.rutland@arm.com>,
	rnayak@codeaurora.org, suzuki.poulose@arm.com,
	catalin.marinas@arm.com,
	linux-arm-kernel <linux-arm-kernel-bounces@lists.infradead.org>,
	linux-kernel@vger.kernel.org, jeremy.linton@arm.com,
	bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org,
	andrew.murray@arm.com, will@kernel.org, dave.martin@arm.com,
	linux-arm-kernel@lists.infradead.org, marc.w.gonzalez@free.fr
Subject: Re: Relax CPU features sanity checking on heterogeneous architectures
Date: Fri, 18 Oct 2019 07:33:29 -0700
Message-ID: <5da9cd3a.1c69fb81.95e9.e5e2@mx.google.com> (raw)
In-Reply-To: <c9285391dbbe936d3f242bdd0d226b93@www.loen.fr>

Quoting Marc Zyngier (2019-10-18 00:20:56)
> 
> If this SoC is anythinig like SM8150, 32bit guests will be hit and 
> miss,
> depending on the CPU your guest runs on, or is migrated to. We need to
> either drop capabilities from the 32bit-capable CPU, or prevent the
> non-32bit capable CPU from booting if a 32bit guest has been started.
> 
> You just have to hope that the kernel is entered at EL2, and that QC's
> "value add" has been moved somewhere else...
> 

Ok that's good.


  reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-11  5:49 Sai Prakash Ranjan
2019-10-11  9:19 ` Marc Gonzalez
2019-10-11  9:57   ` Sai Prakash Ranjan
2019-10-11 10:50 ` Mark Rutland
2019-10-11 11:09   ` Marc Gonzalez
2019-10-11 13:33     ` Sai Prakash Ranjan
2019-10-11 13:17   ` Sai Prakash Ranjan
2019-10-11 13:34     ` Marc Zyngier
2019-10-11 13:40       ` Sai Prakash Ranjan
2019-10-17 20:00         ` Stephen Boyd
2019-10-18  7:20           ` Marc Zyngier
2019-10-18 14:33             ` Stephen Boyd [this message]
2019-10-18 16:40               ` Marc Zyngier
2019-10-18 10:18           ` Sai Prakash Ranjan
2019-10-11 13:33   ` Marc Zyngier
2019-10-11 13:54     ` Mark Rutland
2019-10-11 14:06       ` Marc Zyngier
2019-10-17 21:39       ` Jeremy Linton
2019-10-18  9:01         ` Catalin Marinas

Reply instructions:

You may reply publically 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=5da9cd3a.1c69fb81.95e9.e5e2@mx.google.com \
    --to=swboyd@chromium.org \
    --cc=andrew.murray@arm.com \
    --cc=bjorn.andersson@linaro.org \
    --cc=catalin.marinas@arm.com \
    --cc=dave.martin@arm.com \
    --cc=jeremy.linton@arm.com \
    --cc=linux-arm-kernel-bounces@lists.infradead.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=marc.w.gonzalez@free.fr \
    --cc=mark.rutland@arm.com \
    --cc=maz@kernel.org \
    --cc=rnayak@codeaurora.org \
    --cc=saiprakash.ranjan@codeaurora.org \
    --cc=suzuki.poulose@arm.com \
    --cc=will@kernel.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

Linux-ARM-MSM Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-msm/0 linux-arm-msm/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-msm linux-arm-msm/ https://lore.kernel.org/linux-arm-msm \
		linux-arm-msm@vger.kernel.org
	public-inbox-index linux-arm-msm

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-arm-msm


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git