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Tue, 01 Jul 2025 07:42:10 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Pierrick Bouvier , Julian Armistead , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v3 20/68] accel/system: Introduce AccelClass::pre_resume_vm() handler Date: Tue, 1 Jul 2025 16:39:28 +0200 Message-ID: <20250701144017.43487-21-philmd@linaro.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250701144017.43487-1-philmd@linaro.org> References: <20250701144017.43487-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1751381190668116600 Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- include/qemu/accel.h | 3 +++ accel/accel-system.c | 9 +++++++++ system/cpus.c | 1 + 3 files changed, 13 insertions(+) diff --git a/include/qemu/accel.h b/include/qemu/accel.h index 518c99ab643..065de80a87b 100644 --- a/include/qemu/accel.h +++ b/include/qemu/accel.h @@ -47,6 +47,7 @@ typedef struct AccelClass { bool (*has_memory)(AccelState *accel, AddressSpace *as, hwaddr start_addr, hwaddr size); bool (*cpus_are_resettable)(AccelState *as); + void (*pre_resume_vm)(AccelState *as, bool step_pending); =20 /* gdbstub related hooks */ bool (*supports_guest_debug)(AccelState *as); @@ -86,6 +87,8 @@ int accel_init_machine(AccelState *accel, MachineState *m= s); /* Called just before os_setup_post (ie just before drop OS privs) */ void accel_setup_post(MachineState *ms); =20 +void accel_pre_resume(MachineState *ms, bool step_pending); + /** * accel_cpu_instance_init: * @cpu: The CPU that needs to do accel-specific object initializations. diff --git a/accel/accel-system.c b/accel/accel-system.c index 637e2390f35..11ba8e24d60 100644 --- a/accel/accel-system.c +++ b/accel/accel-system.c @@ -62,6 +62,15 @@ void accel_setup_post(MachineState *ms) } } =20 +void accel_pre_resume(MachineState *ms, bool step_pending) +{ + AccelState *accel =3D ms->accelerator; + AccelClass *acc =3D ACCEL_GET_CLASS(accel); + if (acc->pre_resume_vm) { + acc->pre_resume_vm(accel, step_pending); + } +} + bool cpus_are_resettable(void) { AccelState *accel =3D current_accel(); diff --git a/system/cpus.c b/system/cpus.c index 4fb764ac880..98ae8b1e271 100644 --- a/system/cpus.c +++ b/system/cpus.c @@ -765,6 +765,7 @@ int vm_prepare_start(bool step_pending) if (cpus_accel->synchronize_pre_resume) { cpus_accel->synchronize_pre_resume(step_pending); } + accel_pre_resume(MACHINE(qdev_get_machine()), step_pending); =20 /* We are sending this now, but the CPUs will be resumed shortly later= */ qapi_event_send_resume(); --=20 2.49.0