From: Peter Maydell <peter.maydell@linaro.org>
To: "Alex Bennée" <alex.bennee@linaro.org>
Cc: QEMU Developers <qemu-devel@nongnu.org>,
Tom Rini <trini@konsulko.com>, qemu-arm <qemu-arm@nongnu.org>,
Michal Simek <michal.simek@xilinx.com>,
Stephen Warren <swarren@wwwdotorg.org>
Subject: Re: [Qemu-devel] [Qemu-arm] [PATCH] target/arm: Allow to switch from MON->HYP on AArch32
Date: Wed, 9 Jan 2019 16:35:30 +0000 [thread overview]
Message-ID: <CAFEAcA_6022cBFxHFmSuZVKVFvrX8bwFtoG2jaTwaQ5RoQ02cA@mail.gmail.com> (raw)
In-Reply-To: <871s5lx14y.fsf@linaro.org>
On Wed, 9 Jan 2019 at 16:11, Alex Bennée <alex.bennee@linaro.org> wrote:
>
>
> Alexander Graf <agraf@suse.de> writes:
>
> > In U-boot, we switch from S-SVC -> MON -> HYP when we want to enter
> > HYP mode. This dance seems to work ok (hence it's there in the code
> > base), but breaks with current QEMU.
>
> What EL is MON in this case? EL3?
Mon is an AArch32 term and EL is really AArch64, but in
practice Mon is always (Secure) EL3. Note that if EL3
is AArch32 then S-SVC is *also* EL3 !
thanks
-- PMM
next prev parent reply other threads:[~2019-01-09 16:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-09 15:24 [Qemu-devel] [PATCH] target/arm: Allow to switch from MON->HYP on AArch32 Alexander Graf
2019-01-09 16:10 ` Alex Bennée
2019-01-09 16:19 ` Alexander Graf
2019-01-09 16:35 ` Peter Maydell [this message]
2019-01-09 16:52 ` Peter Maydell
2019-01-09 16:59 ` Peter Maydell
2019-01-09 17:14 ` Alexander Graf
2019-01-09 23:08 ` Peter Maydell
2019-01-10 6:43 ` Alexander Graf
2019-01-10 10:34 ` Peter Maydell
2019-01-17 18:43 ` Peter Maydell
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=CAFEAcA_6022cBFxHFmSuZVKVFvrX8bwFtoG2jaTwaQ5RoQ02cA@mail.gmail.com \
--to=peter.maydell@linaro.org \
--cc=alex.bennee@linaro.org \
--cc=michal.simek@xilinx.com \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=swarren@wwwdotorg.org \
--cc=trini@konsulko.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).