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([102.35.208.160]) by smtp.gmail.com with ESMTPSA id u17-20020a05600c211100b0040fc5460109sm1312756wml.35.2024.02.06.01.25.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Feb 2024 01:25:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1707211527; x=1707816327; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=8IEJoDesP8nm9OgL6hvSjnZOHqeRCmr5Jj59Tquond4=; b=GM5ZTWIjOFYg+jG+LqFx9l5tOvq54ICU9InPNrPB5m+Z8EcMkLOQVXFB8MAo/ZDPPB ZL9ReBgrPc90hCR9oNk+oNbokBgvbe5v9hNyP64WnHOXnlq7Ec9MuCzZPqwn7vCShHcw DlicbicqP2rZuR8bOQIDw4JogZDu/pI/aXolFMI7RXkJYeaLk8Mhu93YRqytE6P/w1Jy RThq1MvoB7gWzOl9AUKHgH/kkvLYFa37Fiw+Qqt6+XpEGW3y3oLzTKF556RPmDeJ64Hh A6jOKmRxIad5j3j4MlvxFME5jLV5On4QxSgTkMVuDgJa5PZ0C/EfEOWtqOJKydcbbDrH 3MzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707211527; x=1707816327; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=8IEJoDesP8nm9OgL6hvSjnZOHqeRCmr5Jj59Tquond4=; b=Ifvshbk6b25o4SKDqKAfn01eu+Omh4fqkdIGHrNxMHyls0raWwrXUpRKpY78LBH29D YvJWOQEwO10SSeHVxk4DB2DIhsiQvP+FF6IovGi/1dGGWQLqf9f0BS0r1+AqDo2qHM/E aHmPt2iOZb0ldmYC1fAmBmui83eQFo2U47YHqpOPjaI9u0Xs91TxJsckjiwfI531DwA+ Wa43y6a7DUkyjcn/k5hdh7gsVMaey6D+kLzf3yO+FnEEqZ66giVPNLcZVqxTpnqXw0rZ fvF653fdhQrA0eImdIUZhT0if0A67booxxGwsG0FjTFvm95KF7toqfg4MS9Y0bVUxll3 zRUw== X-Gm-Message-State: AOJu0Yzi9XGud1VJrS+JLYNdCkr3JHlaNWNex6ZdURZLkdU0Gkf1s2aO lY4XZtx+jwQWUYzQlCHfjnIzJ/rjaMSjbhsuXowfqjYyL1AOguFwImFdg67MWyhYAwF/Zfgpg78 onHY= X-Google-Smtp-Source: AGHT+IHf0oGKESlQcE4F/OJ1Nq0zVBckXa50+gTBVT7RGM3zCkLNpVNrBZLw0Rl9WJzuAp4lS2vHIw== X-Received: by 2002:a05:600c:519b:b0:40f:eb8c:71b9 with SMTP id fa27-20020a05600c519b00b0040feb8c71b9mr308421wmb.12.1707211526865; Tue, 06 Feb 2024 01:25:26 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCX0zTsGefe1zVYGps7wgdLgMj0fTlG8C/qtC7cgTn40hm/xwGgr3GAMcD8KkrcQgxPomaF1NvLdE4d+OVi3swgm6bZJwqFp6CTCB1yO0Tc+0602AVvBoamFbI7z/J6eJ/cGgCXySLnDYNJoRFZMS4oWAALZ3WtC15lIl0XWIOUQLGur0FbHZEEpvZ0rhSTmlFXdJ8JYjX3e23sD+wtBlz7IdGIKXP2YtnbxKAzDQCKCh09MxL626I1SLbtjPBgeb1vQ/CpFvKjpfWNhCVp9H3VF6CwMc9fvDnVNijdQcX2mESf9y/TOMpRq6Ot3xSB4K0q17eYgC3o3UP0cKWXb2y4UE+qfcUSxkg== From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: Eduardo Habkost , Alexandre Iooss , Richard Henderson , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Mahmoud Mandour , Marcel Apfelbaum , Yanan Wang , Pierrick Bouvier , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v3 15/17] plugins: remove non per_vcpu inline operation from API Date: Tue, 6 Feb 2024 13:24:20 +0400 Message-ID: <20240206092423.3005995-16-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240206092423.3005995-1-pierrick.bouvier@linaro.org> References: <20240206092423.3005995-1-pierrick.bouvier@linaro.org> MIME-Version: 1.0 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::335; envelope-from=pierrick.bouvier@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, 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, T_SCC_BODY_TEXT_LINE=-0.01 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: 1707211573607100013 Content-Type: text/plain; charset="utf-8" Now we have a thread-safe equivalent of inline operation, and that all plugins were changed to use it, there is no point to keep the old API. In more, it will help when we implement more functionality (conditional callbacks), as we can assume that we operate on a scoreboard. Bump API version as it's a breaking change for existing plugins. Bump min API version too, as we removed some functions. Signed-off-by: Pierrick Bouvier --- include/qemu/qemu-plugin.h | 58 ++++-------------------------------- plugins/plugin.h | 2 +- plugins/api.c | 29 ------------------ plugins/qemu-plugins.symbols | 3 -- 4 files changed, 6 insertions(+), 86 deletions(-) diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h index cdf1266d724..9b11098ff82 100644 --- a/include/qemu/qemu-plugin.h +++ b/include/qemu/qemu-plugin.h @@ -53,11 +53,15 @@ typedef uint64_t qemu_plugin_id_t; * symbol qemu_plugin_version which can be checked. * * version 2: removed qemu_plugin_n_vcpus and qemu_plugin_n_max_vcpus + * version 3: + * Remove qemu_plugin_register_vcpu_{tb, insn, mem}_exec_inline. + * Those functions are replaced by *_per_vcpu variants, which guarantees + * thread-safety for operations. */ =20 extern QEMU_PLUGIN_EXPORT int qemu_plugin_version; =20 -#define QEMU_PLUGIN_VERSION 2 +#define QEMU_PLUGIN_VERSION 3 =20 /** * struct qemu_info_t - system information for plugins @@ -309,25 +313,6 @@ enum qemu_plugin_op { QEMU_PLUGIN_INLINE_ADD_U64, }; =20 -/** - * qemu_plugin_register_vcpu_tb_exec_inline() - execution inline op - * @tb: the opaque qemu_plugin_tb handle for the translation - * @op: the type of qemu_plugin_op (e.g. ADD_U64) - * @ptr: the target memory location for the op - * @imm: the op data (e.g. 1) - * - * Insert an inline op to every time a translated unit executes. - * Useful if you just want to increment a single counter somewhere in - * memory. - * - * Note: ops are not atomic so in multi-threaded/multi-smp situations - * you will get inexact results. - */ -QEMU_PLUGIN_API -void qemu_plugin_register_vcpu_tb_exec_inline(struct qemu_plugin_tb *tb, - enum qemu_plugin_op op, - void *ptr, uint64_t imm); - /** * qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu() - execution inline = op * @tb: the opaque qemu_plugin_tb handle for the translation @@ -359,21 +344,6 @@ void qemu_plugin_register_vcpu_insn_exec_cb(struct qem= u_plugin_insn *insn, enum qemu_plugin_cb_flags flag= s, void *userdata); =20 -/** - * qemu_plugin_register_vcpu_insn_exec_inline() - insn execution inline op - * @insn: the opaque qemu_plugin_insn handle for an instruction - * @op: the type of qemu_plugin_op (e.g. ADD_U64) - * @ptr: the target memory location for the op - * @imm: the op data (e.g. 1) - * - * Insert an inline op to every time an instruction executes. Useful - * if you just want to increment a single counter somewhere in memory. - */ -QEMU_PLUGIN_API -void qemu_plugin_register_vcpu_insn_exec_inline(struct qemu_plugin_insn *i= nsn, - enum qemu_plugin_op op, - void *ptr, uint64_t imm); - /** * qemu_plugin_register_vcpu_insn_exec_inline_per_vcpu() - insn exec inlin= e op * @insn: the opaque qemu_plugin_insn handle for an instruction @@ -597,24 +567,6 @@ void qemu_plugin_register_vcpu_mem_cb(struct qemu_plug= in_insn *insn, enum qemu_plugin_mem_rw rw, void *userdata); =20 -/** - * qemu_plugin_register_vcpu_mem_inline() - register an inline op to any m= emory access - * @insn: handle for instruction to instrument - * @rw: apply to reads, writes or both - * @op: the op, of type qemu_plugin_op - * @ptr: pointer memory for the op - * @imm: immediate data for @op - * - * This registers a inline op every memory access generated by the - * instruction. This provides for a lightweight but not thread-safe - * way of counting the number of operations done. - */ -QEMU_PLUGIN_API -void qemu_plugin_register_vcpu_mem_inline(struct qemu_plugin_insn *insn, - enum qemu_plugin_mem_rw rw, - enum qemu_plugin_op op, void *pt= r, - uint64_t imm); - /** * qemu_plugin_register_vcpu_mem_inline_per_vcpu() - inline op for mem acc= ess * @insn: handle for instruction to instrument diff --git a/plugins/plugin.h b/plugins/plugin.h index 1ece1b6707a..8e485cfbd58 100644 --- a/plugins/plugin.h +++ b/plugins/plugin.h @@ -15,7 +15,7 @@ #include #include "qemu/qht.h" =20 -#define QEMU_PLUGIN_MIN_VERSION 2 +#define QEMU_PLUGIN_MIN_VERSION 3 =20 /* global state */ struct qemu_plugin_state { diff --git a/plugins/api.c b/plugins/api.c index be2badda9fa..45eabab8686 100644 --- a/plugins/api.c +++ b/plugins/api.c @@ -101,16 +101,6 @@ void qemu_plugin_register_vcpu_tb_exec_cb(struct qemu_= plugin_tb *tb, } } =20 -void qemu_plugin_register_vcpu_tb_exec_inline(struct qemu_plugin_tb *tb, - enum qemu_plugin_op op, - void *ptr, uint64_t imm) -{ - if (!tb->mem_only) { - plugin_register_inline_op(&tb->cbs[PLUGIN_CB_INLINE], - 0, op, ptr, imm); - } -} - void qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu( struct qemu_plugin_tb *tb, enum qemu_plugin_op op, @@ -138,16 +128,6 @@ void qemu_plugin_register_vcpu_insn_exec_cb(struct qem= u_plugin_insn *insn, } } =20 -void qemu_plugin_register_vcpu_insn_exec_inline(struct qemu_plugin_insn *i= nsn, - enum qemu_plugin_op op, - void *ptr, uint64_t imm) -{ - if (!insn->mem_only) { - plugin_register_inline_op(&insn->cbs[PLUGIN_CB_INSN][PLUGIN_CB_INL= INE], - 0, op, ptr, imm); - } -} - void qemu_plugin_register_vcpu_insn_exec_inline_per_vcpu( struct qemu_plugin_insn *insn, enum qemu_plugin_op op, @@ -175,15 +155,6 @@ void qemu_plugin_register_vcpu_mem_cb(struct qemu_plug= in_insn *insn, cb, flags, rw, udata); } =20 -void qemu_plugin_register_vcpu_mem_inline(struct qemu_plugin_insn *insn, - enum qemu_plugin_mem_rw rw, - enum qemu_plugin_op op, void *pt= r, - uint64_t imm) -{ - plugin_register_inline_op(&insn->cbs[PLUGIN_CB_MEM][PLUGIN_CB_INLINE], - rw, op, ptr, imm); -} - void qemu_plugin_register_vcpu_mem_inline_per_vcpu( struct qemu_plugin_insn *insn, enum qemu_plugin_mem_rw rw, diff --git a/plugins/qemu-plugins.symbols b/plugins/qemu-plugins.symbols index 0d8141b85f1..a9fac056c7f 100644 --- a/plugins/qemu-plugins.symbols +++ b/plugins/qemu-plugins.symbols @@ -27,16 +27,13 @@ qemu_plugin_register_vcpu_idle_cb; qemu_plugin_register_vcpu_init_cb; qemu_plugin_register_vcpu_insn_exec_cb; - qemu_plugin_register_vcpu_insn_exec_inline; qemu_plugin_register_vcpu_insn_exec_inline_per_vcpu; qemu_plugin_register_vcpu_mem_cb; - qemu_plugin_register_vcpu_mem_inline; qemu_plugin_register_vcpu_mem_inline_per_vcpu; qemu_plugin_register_vcpu_resume_cb; qemu_plugin_register_vcpu_syscall_cb; qemu_plugin_register_vcpu_syscall_ret_cb; qemu_plugin_register_vcpu_tb_exec_cb; - qemu_plugin_register_vcpu_tb_exec_inline; qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu; qemu_plugin_register_vcpu_tb_trans_cb; qemu_plugin_reset; --=20 2.43.0