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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>,
	"Philippe Mathieu-Daudé" <philmd@mailo.com>
Subject: [PATCH 04/16] cpus: Rename qemu_cpu_stop() to qemu_cpu_ack_stop_request()
Date: Thu, 13 Aug 2026 20:16:27 +0200	[thread overview]
Message-ID: <20260813181640.6537-5-philmd@oss.qualcomm.com> (raw)
In-Reply-To: <20260813181640.6537-1-philmd@oss.qualcomm.com>

Stopping a vCPU is not a simple state transition: an asynchronous
request (CPUState::stop flag) is acknowledged (CPUState::stopped
flag). Use a better name to clarify.

Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
---
 system/cpus.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/system/cpus.c b/system/cpus.c
index 1a6fd286a81..f69558c760c 100644
--- a/system/cpus.c
+++ b/system/cpus.c
@@ -382,7 +382,8 @@ void run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data)
     do_run_on_cpu(cpu, func, data, &bql);
 }
 
-static void qemu_cpu_stop(CPUState *cpu, bool exit)
+/* Must be called by the owning thread */
+static void qemu_cpu_ack_stop_request(CPUState *cpu, bool exit)
 {
     g_assert(qemu_cpu_is_self(cpu));
     cpu->stop = false;
@@ -397,7 +398,7 @@ void qemu_process_cpu_events_common(CPUState *cpu)
 {
     qatomic_set_mb(&cpu->thread_kicked, false);
     if (cpu->stop) {
-        qemu_cpu_stop(cpu, false);
+        qemu_cpu_ack_stop_request(cpu, false);
     }
     process_queued_cpu_work(cpu);
 }
@@ -555,7 +556,7 @@ void cpu_thread_signal_destroyed(CPUState *cpu)
 void cpu_pause(CPUState *cpu)
 {
     if (qemu_cpu_is_self(cpu)) {
-        qemu_cpu_stop(cpu, true);
+        qemu_cpu_ack_stop_request(cpu, true);
     } else {
         cpu->stop = true;
         cpu_exit(cpu);
-- 
2.53.0


  parent reply	other threads:[~2026-08-13 18:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-13 18:16 [PATCH 00/16] cpus: Improvements around BQL locking, improving docstring Philippe Mathieu-Daudé
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 ` Philippe Mathieu-Daudé [this message]
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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