From: "Alex Bennée" <alex.bennee@linaro.org>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: Peter Maydell <peter.maydell@linaro.org>,
qemu-arm@nongnu.org,
Richard Henderson <richard.henderson@linaro.org>,
qemu-devel@nongnu.org
Subject: Re: [PATCH v2] target/arm/cpu64: Use 32-bit GDBstub when running in 32-bit KVM mode
Date: Mon, 10 Jan 2022 10:22:28 +0000 [thread overview]
Message-ID: <87lezndh5i.fsf@linaro.org> (raw)
In-Reply-To: <20220108150952.1483911-1-ardb@kernel.org>
Ard Biesheuvel <ardb@kernel.org> writes:
> When running under KVM, we may decide to run the CPU in 32-bit mode, by
> setting the 'aarch64=off' CPU option. In this case, we need to switch to
> the 32-bit version of the GDB stub too, so that GDB has the correct view
> of the CPU state. Without this, GDB debugging does not work at all, and
> errors out upon connecting to the target with a mysterious 'g' packet
> length error.
>
> Cc: Richard Henderson <richard.henderson@linaro.org>
> Cc: Peter Maydell <peter.maydell@linaro.org>
> Cc: Alex Bennee <alex.bennee@linaro.org>
> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
--
Alex Bennée
next prev parent reply other threads:[~2022-01-10 10:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-08 15:09 [PATCH v2] target/arm/cpu64: Use 32-bit GDBstub when running in 32-bit KVM mode Ard Biesheuvel
2022-01-08 18:39 ` Richard Henderson
2022-01-08 21:48 ` Philippe Mathieu-Daudé
2022-01-10 10:22 ` Alex Bennée [this message]
2022-01-11 14:10 ` Peter Maydell
2022-01-11 14:38 ` Ard Biesheuvel
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=87lezndh5i.fsf@linaro.org \
--to=alex.bennee@linaro.org \
--cc=ardb@kernel.org \
--cc=peter.maydell@linaro.org \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=richard.henderson@linaro.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 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).