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From: "Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>
To: qemu-devel@nongnu.org
Cc: "Daniel Henrique Barboza" <daniel.barboza@oss.qualcomm.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Pierrick Bouvier" <pierrick.bouvier@oss.qualcomm.com>,
	"Mohamed Mediouni" <mohamed@unpredictable.fr>,
	"Alexander Graf" <agraf@csgraf.de>,
	qemu-ppc@nongnu.org, qemu-riscv@nongnu.org, kvm@vger.kernel.org,
	"Richard Henderson" <richard.henderson@linaro.org>,
	qemu-arm@nongnu.org,
	"Magnus Kulke" <magnuskulke@linux.microsoft.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>
Subject: [PATCH 00/16] cpus: Improvements around BQL locking, improving docstring
Date: Thu, 13 Aug 2026 20:16:23 +0200	[thread overview]
Message-ID: <20260813181640.6537-1-philmd@oss.qualcomm.com> (raw)

Hi,

While working on the hybrid-accelerator, I had to debug issues
with vCPU scheduling and BQL. This series contains patches I
wrote mostly as note for myself to better understand what was
going on. Please review carefully as I'm way out of my confort
zone...

Thanks,

Phil.

Philippe Mathieu-Daudé (16):
  accel: Label outer / inner vCPU execution loops
  cpus: Improve qemu_cpu_kick_self() docstring
  cpus: Rename cpu_stop_current() -> qemu_cpu_stop_self()
  cpus: Rename qemu_cpu_stop() to qemu_cpu_ack_stop_request()
  cpus: Improve cpu_pause() docstring
  cpus: Improve cpu_exit() docstring
  cpus: Document process_queued_cpu_work*() runs on current vCPU
  cpus: Slightly improve *run_on_cpu() docstrings
  accel/tcg: Use RUN_ON_CPU_NULL for tcg_commit() callbacks
  accel/kvm: Clarify use of @r variable in vcpu thread loop
  accel/kvm: Consistently return CPU halt state from
    process_async_events
  target/arm/hvf: Move flush_cpu_state() into the inner vCPU loop
  target/arm/hvf: Lock BQL outside of the vCPU inner execution loop
  target/i386/hvf: Lock BQL outside of the vCPU inner execution loop
  target/arm/powerctl: Move BQL assertions to async work context
  target/arm/whpx: Fix argument order typo in memory access error
    message

 include/hw/core/cpu.h             | 54 +++++++++++++++++++------------
 include/system/cpus.h             | 19 +++++++++--
 accel/dummy-cpus.c                |  1 +
 accel/hvf/hvf-accel-ops.c         |  1 +
 accel/kvm/kvm-accel-ops.c         | 10 +++---
 accel/kvm/kvm-all.c               |  1 +
 accel/mshv/mshv-all.c             |  2 ++
 accel/tcg/tcg-accel-ops-mttcg.c   |  1 +
 accel/whpx/whpx-accel-ops.c       |  1 +
 hw/ppc/spapr_rtas.c               |  2 +-
 system/cpus.c                     |  9 +++---
 system/physmem.c                  |  4 +--
 system/runstate.c                 |  6 ++--
 target/arm/arm-powerctl.c         |  9 +-----
 target/arm/hvf/hvf.c              | 16 +++++----
 target/arm/kvm.c                  |  2 +-
 target/arm/whpx/whpx-all.c        | 10 +++---
 target/i386/hvf/hvf.c             | 20 +++++++-----
 target/i386/nvmm/nvmm-accel-ops.c |  1 +
 target/i386/whpx/whpx-all.c       |  1 +
 target/riscv/kvm/kvm-cpu.c        |  2 +-
 21 files changed, 106 insertions(+), 66 deletions(-)

-- 
2.53.0


             reply	other threads:[~2026-08-13 18:16 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-13 18:16 Philippe Mathieu-Daudé [this message]
2026-08-13 18:16 ` [PATCH 01/16] accel: Label outer / inner vCPU execution loops Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 02/16] cpus: Improve qemu_cpu_kick_self() docstring Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 03/16] cpus: Rename cpu_stop_current() -> qemu_cpu_stop_self() Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 04/16] cpus: Rename qemu_cpu_stop() to qemu_cpu_ack_stop_request() Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 05/16] cpus: Improve cpu_pause() docstring Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 06/16] cpus: Improve cpu_exit() docstring Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 07/16] cpus: Document process_queued_cpu_work*() runs on current vCPU Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 08/16] cpus: Slightly improve *run_on_cpu() docstrings Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 09/16] accel/tcg: Use RUN_ON_CPU_NULL for tcg_commit() callbacks Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 10/16] accel/kvm: Clarify use of @r variable in vcpu thread loop Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 11/16] accel/kvm: Consistently return CPU halt state from process_async_events Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 12/16] target/arm/hvf: Move flush_cpu_state() into the inner vCPU loop Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 13/16] target/arm/hvf: Lock BQL outside of the vCPU inner execution loop Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 14/16] target/i386/hvf: " Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 15/16] target/arm/powerctl: Move BQL assertions to async work context Philippe Mathieu-Daudé
2026-08-13 18:16 ` [PATCH 16/16] target/arm/whpx: Fix argument order typo in memory access error message Philippe Mathieu-Daudé

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