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[95.127.63.101]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45364705748sm30865405e9.28.2025.06.20.10.29.12 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 20 Jun 2025 10:29:14 -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 10/42] accel/split: Define and allocate AccelCPUState Date: Fri, 20 Jun 2025 19:27:18 +0200 Message-ID: <20250620172751.94231-11-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::331; envelope-from=philmd@linaro.org; helo=mail-wm1-x331.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 AccelCPUState is where we store per-vCPU accelerator related information. FIXME: structures might clash so add padding (ok with TCG+HVF) Signed-off-by: Philippe Mathieu-Daudé --- accel/split/split-accel.h | 7 +++++++ accel/split/split-accel-ops.c | 9 ++++++++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/accel/split/split-accel.h b/accel/split/split-accel.h index 19fb530f207..87a08454ce6 100644 --- a/accel/split/split-accel.h +++ b/accel/split/split-accel.h @@ -38,4 +38,11 @@ struct SplitAccelState { char *sw_name; }; +struct AccelCPUState { + char pad[128]; + + AccelState *accel; + bool use_hw; +}; + #endif /* SPLIT_ACCEL_H */ diff --git a/accel/split/split-accel-ops.c b/accel/split/split-accel-ops.c index 294ea79420e..efef0d60fde 100644 --- a/accel/split/split-accel-ops.c +++ b/accel/split/split-accel-ops.c @@ -12,10 +12,13 @@ #include "exec/cpu-common.h" #include "system/accel-ops.h" #include "system/cpus.h" +#include "split-accel.h" static void *split_cpu_thread_routine(void *arg) { + AccelState *as = current_accel(); CPUState *cpu = arg; + AccelCPUState *acs; int r; /* TODO: check accel allowed */ @@ -29,7 +32,10 @@ static void *split_cpu_thread_routine(void *arg) current_cpu = cpu; /* TODO: init_vcpu_thread() */ - /* TODO: allocate AccelCPUState */ + cpu->accel = g_renew(AccelCPUState, cpu->accel, 1); /* XXX only with current TCG */ + acs = cpu->accel; + acs->accel = as; + acs->use_hw = false; /* signal CPU creation */ cpu_thread_signal_created(cpu); @@ -60,6 +66,7 @@ static void *split_cpu_thread_routine(void *arg) */ break; case EXCP_ATOMIC: + assert(!acs->use_hw); bql_unlock(); cpu_exec_step_atomic(cpu); bql_lock();