From nobody Wed Oct 23 01:21:10 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1729356059; cv=none; d=zohomail.com; s=zohoarc; b=bF2g02KELJkj6RNyB3ZUc+rq8ipFtXzOlf7pf32MTlu/kYDyOTWXixJU9SOgFQZCzMZCNIFXSOOx/ITPE13OQElEbxPVDTWScab5yZze0U92MTFYoYc6/Xj4Z7+jhIRmasU4E7Cb9MBrGYF89+awXO1BtPN5W6awuGDZJPs76KI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1729356059; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=TmWItrrXsPtD3dT8yjoH+RGfNQubfNkAl0aLKH3Hc3c=; b=BHSCYQQoDaH83vt8HCNtaIseRPcBPwyhFMCfXjgdRPaGlXVrWaDcY9DLRG6J7UVlX52TZASzKeHz3dCkD5njMnZSlwpfxHdT0dDJTM1lGP/nOF6BZfC86zjOpFHBBWQor/CFjKEWNebakRlTcZ9B1QuywOu1xmIQ5HwnqonqDYo= ARC-Authentication-Results: i=1; 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Sat, 19 Oct 2024 18:39:58 +0200 (CEST) Received: (qmail 9732 invoked by uid 990); 19 Oct 2024 16:39:58 -0000 Received: from unknown (HELO unkown) (::1) by skiff.uberspace.de (Haraka/3.0.1) with ESMTPSA; Sat, 19 Oct 2024 18:39:57 +0200 Authentication-Results: skiff.uberspace.de; auth=pass (plain) From: Julian Ganz To: qemu-devel@nongnu.org Cc: Julian Ganz , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Subject: [RFC PATCH v2 2/7] plugins: add hooks for new trap related callbacks Date: Sat, 19 Oct 2024 18:39:35 +0200 Message-ID: <7ac6b4373e393e99070470818f6197fa34f9e3a9.1729355735.git.neither@nut.email> X-Mailer: git-send-email 2.45.2 In-Reply-To: References: <20231021122502.26746-1-neither@nut.email> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Bar: ---- X-Rspamd-Report: REPLY(-4) SUSPICIOUS_RECIPS(1.5) MID_CONTAINS_FROM(1) MIME_GOOD(-0.1) BAYES_HAM(-2.999999) R_MISSING_CHARSET(0.5) X-Rspamd-Score: -4.099999 DKIM-Signature: v=1; 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helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:d0c0:200:0:1c7b:a6ff:fee0:8ea4; envelope-from=neither@nut.email; helo=mailgate02.uberspace.is 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, 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 @nut.email) X-ZM-MESSAGEID: 1729356061620116600 Content-Type: text/plain; charset="utf-8" The plugin API allows registration of callbacks for a variety of VCPU related events, such as VCPU reset, idle and resume. In addition, we recently introduced API for registering callbacks for trap events, specifically for interrupts, exceptions and semihosting events. This change introduces the corresponding hooks called from target specific code inside qemu. Signed-off-by: Julian Ganz --- include/qemu/plugin.h | 12 ++++++++++++ plugins/core.c | 24 ++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/include/qemu/plugin.h b/include/qemu/plugin.h index 9726a9ebf3..71f03b83f4 100644 --- a/include/qemu/plugin.h +++ b/include/qemu/plugin.h @@ -160,6 +160,9 @@ void qemu_plugin_vcpu_exit_hook(CPUState *cpu); void qemu_plugin_tb_trans_cb(CPUState *cpu, struct qemu_plugin_tb *tb); void qemu_plugin_vcpu_idle_cb(CPUState *cpu); void qemu_plugin_vcpu_resume_cb(CPUState *cpu); +void qemu_plugin_vcpu_interrupt_cb(CPUState *cpu); +void qemu_plugin_vcpu_exception_cb(CPUState *cpu); +void qemu_plugin_vcpu_semihosting_cb(CPUState *cpu); void qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4, uint64_t a= 5, @@ -242,6 +245,15 @@ static inline void qemu_plugin_vcpu_idle_cb(CPUState *= cpu) static inline void qemu_plugin_vcpu_resume_cb(CPUState *cpu) { } =20 +void qemu_plugin_vcpu_interrupt_cb(CPUState *cpu) +{ } + +void qemu_plugin_vcpu_exception_cb(CPUState *cpu) +{ } + +void qemu_plugin_vcpu_semihosting_cb(CPUState *cpu) +{ } + static inline void qemu_plugin_vcpu_syscall(CPUState *cpu, int64_t num, uint64_t a1, uint64_t= a2, uint64_t a3, uint64_t a4, uint64_t a5, uint64_t a= 6, diff --git a/plugins/core.c b/plugins/core.c index 9de997069c..4f80f1cb72 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -100,6 +100,9 @@ static void plugin_vcpu_cb__simple(CPUState *cpu, enum = qemu_plugin_event ev) case QEMU_PLUGIN_EV_VCPU_EXIT: case QEMU_PLUGIN_EV_VCPU_IDLE: case QEMU_PLUGIN_EV_VCPU_RESUME: + case QEMU_PLUGIN_EV_VCPU_INTERRUPT: + case QEMU_PLUGIN_EV_VCPU_EXCEPTION: + case QEMU_PLUGIN_EV_VCPU_SEMIHOSTING: /* iterate safely; plugins might uninstall themselves at any time = */ QLIST_FOREACH_SAFE_RCU(cb, &plugin.cb_lists[ev], entry, next) { qemu_plugin_vcpu_simple_cb_t func =3D cb->f.vcpu_simple; @@ -547,6 +550,27 @@ void qemu_plugin_vcpu_resume_cb(CPUState *cpu) } } =20 +void qemu_plugin_vcpu_interrupt_cb(CPUState *cpu) +{ + if (cpu->cpu_index < plugin.num_vcpus) { + plugin_vcpu_cb__simple(cpu, QEMU_PLUGIN_EV_VCPU_INTERRUPT); + } +} + +void qemu_plugin_vcpu_exception_cb(CPUState *cpu) +{ + if (cpu->cpu_index < plugin.num_vcpus) { + plugin_vcpu_cb__simple(cpu, QEMU_PLUGIN_EV_VCPU_EXCEPTION); + } +} + +void qemu_plugin_vcpu_semihosting_cb(CPUState *cpu) +{ + if (cpu->cpu_index < plugin.num_vcpus) { + plugin_vcpu_cb__simple(cpu, QEMU_PLUGIN_EV_VCPU_SEMIHOSTING); + } +} + void qemu_plugin_register_vcpu_idle_cb(qemu_plugin_id_t id, qemu_plugin_vcpu_simple_cb_t cb) { --=20 2.45.2