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[95.127.63.101]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a6d0f10502sm2667961f8f.18.2025.06.20.10.31.09 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 20 Jun 2025 10:31:12 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Alexander Graf , =?utf-8?q?Alex_Benn=C3=A9e?= , Richard Henderson , Paolo Bonzini , Peter Maydell , Julian Armistead , Cameron Esfahani , Mark Burton , Thomas Huth , "Edgar E. Iglesias" , Pierrick Bouvier , =?utf-8?q?Philippe_Mathieu-?= =?utf-8?q?Daud=C3=A9?= Subject: [RFC PATCH RESEND 22/42] accel/split: Add few trace events in cpu_thread_routine handler Date: Fri, 20 Jun 2025 19:27:30 +0200 Message-ID: <20250620172751.94231-23-philmd@linaro.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250620172751.94231-1-philmd@linaro.org> References: <20250620172751.94231-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::332; envelope-from=philmd@linaro.org; helo=mail-wm1-x332.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Signed-off-by: Philippe Mathieu-Daudé --- meson.build | 1 + accel/split/trace.h | 2 ++ accel/split/split-accel-ops.c | 7 +++++++ accel/split/trace-events | 9 +++++++++ 4 files changed, 19 insertions(+) create mode 100644 accel/split/trace.h create mode 100644 accel/split/trace-events diff --git a/meson.build b/meson.build index 5004678a26b..06c32e0e958 100644 --- a/meson.build +++ b/meson.build @@ -3635,6 +3635,7 @@ if have_system trace_events_subdirs += [ 'accel/hvf', 'accel/kvm', + 'accel/split', 'audio', 'backends', 'backends/tpm', diff --git a/accel/split/trace.h b/accel/split/trace.h new file mode 100644 index 00000000000..46b45388930 --- /dev/null +++ b/accel/split/trace.h @@ -0,0 +1,2 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#include "trace/trace-accel_split.h" diff --git a/accel/split/split-accel-ops.c b/accel/split/split-accel-ops.c index 1766834d537..399bf71a9ec 100644 --- a/accel/split/split-accel-ops.c +++ b/accel/split/split-accel-ops.c @@ -17,6 +17,7 @@ #include "system/hw_accel.h" #include "system/tcg.h" #include "split-accel.h" +#include "trace.h" #include "accel/accel-internal.h" #include "accel/tcg/tcg-accel-ops-mttcg.h" @@ -64,13 +65,18 @@ static void *split_cpu_thread_routine(void *arg) if (cpu_can_run(cpu)) { if (acs->use_hw) { r = hwops->exec_vcpu_thread(cpu); + trace_accel_split_exec_vcpu_thread_hw(r); } else { r = swops->exec_vcpu_thread(cpu); + trace_accel_split_exec_vcpu_thread_sw(r); } switch (r) { case 0: if (acs->use_hw) { acs->use_hw = cpu_acceleratable(cpu); + if (!acs->use_hw) { + trace_accel_split_sw_emulate(); + } } break; case EXCP_INTERRUPT: @@ -95,6 +101,7 @@ static void *split_cpu_thread_routine(void *arg) break; case EXCP_HWACCEL: assert(!acs->use_hw); + trace_accel_split_hw_accelerate(); acs->use_hw = true; break; default: diff --git a/accel/split/trace-events b/accel/split/trace-events new file mode 100644 index 00000000000..c0b9fd97d1d --- /dev/null +++ b/accel/split/trace-events @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# +# See docs/devel/tracing.rst for syntax documentation. + +# split-accel-ops.c +accel_split_exec_vcpu_thread_sw(int retval) "sw: rv:0x%x" +accel_split_exec_vcpu_thread_hw(int retval) "hw: rv:0x%x" +accel_split_hw_accelerate(void) "" +accel_split_sw_emulate(void) ""