All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Marc-André Lureau" <marcandre.lureau@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Dr. David Alan Gilbert" <dave@treblig.org>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>,
	"Zhao Liu" <zhao1.liu@intel.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Chinmay Rath" <rathc@linux.ibm.com>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Glenn Miles" <milesg@linux.ibm.com>,
	"Harsh Prateek Bora" <harshpb@linux.ibm.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Alistair Francis" <alistair.francis@wdc.com>,
	"Weiwei Li" <liwei1518@gmail.com>,
	"Daniel Henrique Barboza" <daniel.barboza@oss.qualcomm.com>,
	"Liu Zhiwei" <zhiwei_liu@linux.alibaba.com>,
	"Chao Liu" <chao.liu@processmission.com>,
	"Max Filippov" <jcmvbkbc@gmail.com>,
	qemu-arm@nongnu.org, qemu-ppc@nongnu.org, qemu-riscv@nongnu.org,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>,
	"Artyom Tarasenko" <atar4qemu@gmail.com>,
	"Helge Deller" <deller@gmx.de>,
	"Pierrick Bouvier" <pierrick.bouvier@oss.qualcomm.com>,
	"Warner Losh" <imp@bsdimp.com>, "Kyle Evans" <kevans@freebsd.org>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: [PATCH 00/10] monitor/hmp: replace MonitorDef with GDB registers
Date: Fri, 11 Sep 2026 16:27:23 +0400	[thread overview]
Message-ID: <20260911-query-reg-v1-0-0c04f0c02cf3@redhat.com> (raw)

Hi,

HMP monitor supports printing $register expression. The lookup
was done via GDB stub registers, and supplementary MonitorDef
HMP-specific tables.

Migrate HMP registers to use the GDB infrastructure and remove the
legacy HMP MonitorDef. Use a "qemu-debug" register group, as they are
aliases or synthetic registers, but gdb doesn't seem to care.

Known behavioural changes on RISC-V: CSR lookup is now case-sensitive
and vector registers now report "unkown register" instead of a
target-specific message ("Unable to print the value of vector vreg 'v0'
from this API")

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
Marc-André Lureau (10):
      hmp: don't crash on invalid register
      gdbstub: fix next register base after register gaps
      gdbstub: set feature->base_reg for dynamic features
      target/i386: expose segment limits via GDB
      monitor/hmp: add CPUClass::get_pc fallback for HMP $pc
      target/m68k: expose system registers via GDB
      target/sparc64: expose system registers via GDB
      target/riscv: bypass smstateen check in debugger mode
      target/riscv: expose register aliases via GDB
      monitor/hmp: remove legacy MonitorDef infrastructure

 configs/targets/i386-softmmu.mak          |   2 +-
 configs/targets/m68k-softmmu.mak          |   2 +-
 configs/targets/riscv32-linux-user.mak    |   2 +-
 configs/targets/riscv32-softmmu.mak       |   2 +-
 configs/targets/riscv64-bsd-user.mak      |   2 +-
 configs/targets/riscv64-linux-user.mak    |   2 +-
 configs/targets/riscv64-softmmu.mak       |   2 +-
 configs/targets/sparc64-softmmu.mak       |   2 +-
 configs/targets/x86_64-softmmu.mak        |   2 +-
 gdbstub/gdb-xml/i386-segments.xml         |  14 +++
 gdbstub/gdb-xml/m68k-system.xml           |  32 +++++++
 gdbstub/gdb-xml/riscv-32bit-alias.xml     | 105 ++++++++++++++++++++++
 gdbstub/gdb-xml/riscv-32bit-fpu-alias.xml |  40 +++++++++
 gdbstub/gdb-xml/riscv-64bit-alias.xml     | 105 ++++++++++++++++++++++
 gdbstub/gdb-xml/riscv-64bit-fpu-alias.xml |  46 ++++++++++
 gdbstub/gdb-xml/sparc64-system.xml        |  22 +++++
 gdbstub/gdbstub.c                         |  14 +--
 include/hw/core/cpu.h                     |   2 +-
 include/hw/core/sysemu-cpu-ops.h          |  16 ----
 include/monitor/hmp.h                     |   6 --
 include/qemu/typedefs.h                   |   1 -
 monitor/hmp.c                             |  52 ++---------
 target/arm/gdbstub.c                      |   8 +-
 target/arm/gdbstub64.c                    |  10 ++-
 target/i386/cpu.c                         |  32 -------
 target/i386/gdbstub.c                     |  24 +++++
 target/m68k/cpu.c                         |  22 -----
 target/m68k/helper.c                      |  47 ++++++++++
 target/ppc/gdbstub.c                      |   2 +-
 target/riscv/cpu.c                        |   1 -
 target/riscv/gdbstub.c                    |  52 ++++++++++-
 target/riscv/internals.h                  |   3 -
 target/riscv/monitor.c                    | 140 ------------------------------
 target/riscv/tcg/csr.c                    |   3 +-
 target/sparc/cpu.c                        |  19 ----
 target/sparc/gdbstub.c                    |  38 ++++++++
 target/xtensa/cpu.c                       |   2 +-
 37 files changed, 562 insertions(+), 314 deletions(-)
---
base-commit: 209b2afaface001c7d4d981e38f186afe7b24a50
change-id: 20260910-query-reg-80cd59cf4707

Best regards,
--  
Marc-André Lureau <marcandre.lureau@redhat.com>



             reply	other threads:[~2026-09-11 12:28 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-11 12:27 Marc-André Lureau [this message]
2026-09-11 12:27 ` [PATCH 01/10] hmp: don't crash on invalid register Marc-André Lureau
2026-09-11 12:27 ` [PATCH 02/10] gdbstub: fix next register base after register gaps Marc-André Lureau
2026-09-11 15:29   ` Alex Bennée
2026-09-11 12:27 ` [PATCH 03/10] gdbstub: set feature->base_reg for dynamic features Marc-André Lureau
2026-09-11 12:27 ` [PATCH 04/10] target/i386: expose segment limits via GDB Marc-André Lureau
2026-09-11 12:27 ` [PATCH 05/10] monitor/hmp: add CPUClass::get_pc fallback for HMP $pc Marc-André Lureau
2026-09-11 12:27 ` [PATCH 06/10] target/m68k: expose system registers via GDB Marc-André Lureau
2026-09-11 12:27 ` [PATCH 07/10] target/sparc64: " Marc-André Lureau
2026-09-11 12:27 ` [PATCH 08/10] target/riscv: bypass smstateen check in debugger mode Marc-André Lureau
2026-09-11 12:27 ` [PATCH 09/10] target/riscv: expose register aliases via GDB Marc-André Lureau
2026-09-11 12:27 ` [PATCH 10/10] monitor/hmp: remove legacy MonitorDef infrastructure Marc-André Lureau

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=20260911-query-reg-v1-0-0c04f0c02cf3@redhat.com \
    --to=marcandre.lureau@redhat.com \
    --cc=alex.bennee@linaro.org \
    --cc=alistair.francis@wdc.com \
    --cc=atar4qemu@gmail.com \
    --cc=chao.liu@processmission.com \
    --cc=daniel.barboza@oss.qualcomm.com \
    --cc=dave@treblig.org \
    --cc=deller@gmx.de \
    --cc=harshpb@linux.ibm.com \
    --cc=imp@bsdimp.com \
    --cc=jcmvbkbc@gmail.com \
    --cc=kevans@freebsd.org \
    --cc=laurent@vivier.eu \
    --cc=liwei1518@gmail.com \
    --cc=mark.cave-ayland@ilande.co.uk \
    --cc=milesg@linux.ibm.com \
    --cc=npiggin@gmail.com \
    --cc=palmer@dabbelt.com \
    --cc=pbonzini@redhat.com \
    --cc=peter.maydell@linaro.org \
    --cc=philmd@oss.qualcomm.com \
    --cc=pierrick.bouvier@oss.qualcomm.com \
    --cc=qemu-arm@nongnu.org \
    --cc=qemu-devel@nongnu.org \
    --cc=qemu-ppc@nongnu.org \
    --cc=qemu-riscv@nongnu.org \
    --cc=rathc@linux.ibm.com \
    --cc=zhao1.liu@intel.com \
    --cc=zhiwei_liu@linux.alibaba.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.