{"id":2226160,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2226160/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422101043.1234229-29-alex.bennee@linaro.org/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.2/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260422101043.1234229-29-alex.bennee@linaro.org>","list_archive_url":null,"date":"2026-04-22T10:10:39","name":"[v2,28/31] target/arm: hoist event broadcast code into a helper","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"5ae91093e57e4d6bf2d028ef21b4642367b828e5","submitter":{"id":39532,"url":"http://patchwork.ozlabs.org/api/1.2/people/39532/?format=json","name":"Alex Bennée","email":"alex.bennee@linaro.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422101043.1234229-29-alex.bennee@linaro.org/mbox/","series":[{"id":500957,"url":"http://patchwork.ozlabs.org/api/1.2/series/500957/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500957","date":"2026-04-22T10:10:11","name":"target/arm: fully model WFxT instructions for A-profile","version":2,"mbox":"http://patchwork.ozlabs.org/series/500957/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226160/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226160/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=ren4nwMv;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=UTF-8","Content-Transfer-Encoding":"8bit","Received-SPF":"pass client-ip=2a00:1450:4864:20::335;\n envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x335.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"We will shortly call it from more places.\n\nSigned-off-by: Alex Bennée \n---\n target/arm/internals.h | 19 +++++++++++++++++++\n target/arm/tcg/op_helper.c | 9 +--------\n 2 files changed, 20 insertions(+), 8 deletions(-)","diff":"diff --git a/target/arm/internals.h b/target/arm/internals.h\nindex dc593f1fec8..089f679ac0a 100644\n--- a/target/arm/internals.h\n+++ b/target/arm/internals.h\n@@ -682,6 +682,25 @@ bool arm_is_psci_call(ARMCPU *cpu, int excp_type);\n /* Actually handle a PSCI call */\n void arm_handle_psci_call(ARMCPU *cpu);\n \n+/**\n+ * arm_broadcast_event: set the event_register for all PEs\n+ *\n+ * This kicks all PEs which will up which are waiting on the event\n+ * register.\n+ */\n+static inline void arm_broadcast_event(void)\n+{\n+ CPUState *cs;\n+\n+ CPU_FOREACH(cs) {\n+ ARMCPU *target_cpu = ARM_CPU(cs);\n+ target_cpu->env.event_register = true;\n+ if (!qemu_cpu_is_self(cs)) {\n+ qemu_cpu_kick(cs);\n+ }\n+ }\n+}\n+\n /**\n * arm_clear_exclusive: clear the exclusive monitor\n * @env: CPU env\ndiff --git a/target/arm/tcg/op_helper.c b/target/arm/tcg/op_helper.c\nindex 655e3f96e78..6a2be85fcaa 100644\n--- a/target/arm/tcg/op_helper.c\n+++ b/target/arm/tcg/op_helper.c\n@@ -474,14 +474,7 @@ void HELPER(wfit)(CPUARMState *env, uint32_t rd)\n \n void HELPER(sev)(CPUARMState *env)\n {\n- CPUState *cs = env_cpu(env);\n- CPU_FOREACH(cs) {\n- ARMCPU *target_cpu = ARM_CPU(cs);\n- target_cpu->env.event_register = true;\n- if (!qemu_cpu_is_self(cs)) {\n- qemu_cpu_kick(cs);\n- }\n- }\n+ arm_broadcast_event();\n }\n \n void HELPER(wfe)(CPUARMState *env)\n","prefixes":["v2","28/31"]}