From nobody Tue Nov 26 14:18:41 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; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1707817338; cv=none; d=zohomail.com; s=zohoarc; b=CIexIImvg87cjxQDAapMgyWvkkyIg9Icb07pdONZocRnbaTrjSJiPVz/tnPimxAvbb6JTEGXhx/GxdWX/YeqqKATcUEKehAIBkPEfBAyEtlExVPipqeRx4DvdziC3iwOfzSkYkuqIDpInHC+6nVKfgQQywb/JH+9GwM36tAkQqI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1707817338; 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=FX8AG3Ps8xAkefZTvhN1LBKlwzFSEA66N1+pg+4IJGo=; b=Z0q5wNgb7Gf5QbArqf0jEE6SAIsKvZtSxm2aD6a1OKDGXQYCvllnheVTnk3GUgjMTjSie/IvjZdTZzn32K7eT9sVWXs80WC05xd+qzM/VavMQUZGnUu1JRtpC2TsJswEWBfy5huWvcVe/j695VCvKhmn3TxlSomyU8snuNj4FYQ= ARC-Authentication-Results: i=1; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1707817338403226.20235331183767; Tue, 13 Feb 2024 01:42:18 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZpIM-0001zU-6c; Tue, 13 Feb 2024 04:41:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZpIF-0001fy-Np for qemu-devel@nongnu.org; Tue, 13 Feb 2024 04:41:35 -0500 Received: from mail-wr1-x42f.google.com ([2a00:1450:4864:20::42f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rZpI9-0000Is-6M for qemu-devel@nongnu.org; Tue, 13 Feb 2024 04:41:35 -0500 Received: by mail-wr1-x42f.google.com with SMTP id ffacd0b85a97d-33adec41b55so438904f8f.0 for ; Tue, 13 Feb 2024 01:41:28 -0800 (PST) Received: from linaro.. ([102.35.208.160]) by smtp.gmail.com with ESMTPSA id cc19-20020a5d5c13000000b0033b728190c1sm8550261wrb.79.2024.02.13.01.41.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Feb 2024 01:41:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1707817287; x=1708422087; 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=FX8AG3Ps8xAkefZTvhN1LBKlwzFSEA66N1+pg+4IJGo=; b=g/wV5ndgySjR2tSIni1y6cSk7bje1gpINb9n6eCoxsqSm9Z7RZFpe0RzMOdNX9XmOp VVZmP0c0f0QJywaX58oLQ57LjC8HVTX9ec/CwvxeaRUHv3ZClEamkMsYzgxRh4gGHosk bdeqOSSKNRUmLMIe/lwYO+P9bI8odyskqOoChaTkWy1PEB/0w1c45JMsOE8hwzaJl3fI ekTynjG6qHvzDk/WN1ECOsylLIPLLmdjLgiOAb9b+TXP2GCGukUJy35h315GODIiPLL/ 7/tURaycVya4zf7dlOKECNlbH8onCzLt9R4Yyv/t6CdYKwYyBuxuM1yE16r5eVo4HxjJ uOfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707817287; x=1708422087; 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=FX8AG3Ps8xAkefZTvhN1LBKlwzFSEA66N1+pg+4IJGo=; b=URm0bkNbyvC3aOFdf3inzkgyH4mEevI5GJgFES+LjfxiqE9BF2jFzZ9Y8ZfGSqJhtS ZNrjTP4ZtI3Gm8emSHooE+6UPAjN1AxcoCTPHDPcKPu+mhx/eujx83GR62OT5+FV9aKi PpaN1yh9kGSf2SxOFiUyF8vJ8Nq+F9ovbIJo6BJbtJqUA5iSNsC9BYmLjKl9xEI2mhF2 XhRUoyLpfCxv35VLTccc/+suh3PUFlIT7LtNHjbhz3z5J6lFFlfADZ1liLXGus2CjWiY WKkdH0v3oCzEKxGtJ6aIYh9cqa4CpbIefRZDEBCWvHD45bPXtL1IFcyR5YNKQTZzoY1K 1udg== X-Gm-Message-State: AOJu0Yy6LDP+/EBRvK9VLsmccSgZWJleSglzDZA1scSqYsPCCKweT4U5 er7v+91GJhTobjRGbxRqWmkSu7gAQrLoN04VIAyp/ra+4HDzxAserRbUF3QDbkOzn3726/2l6SI A X-Google-Smtp-Source: AGHT+IFSnFcW83k1g9OCiJPiSUNTqOheuSlGwIhQzlAkT264x26dqmG6VJUmVs1Jpz8mNhyg1FpJ1w== X-Received: by 2002:a5d:6e55:0:b0:33b:3c79:9182 with SMTP id j21-20020a5d6e55000000b0033b3c799182mr6702834wrz.3.1707817287288; Tue, 13 Feb 2024 01:41:27 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCWQ/nrcdm5oX93vAwJGHq2W8VMFzg+QICcT6RyDCKIxECNIWfr8m+DpIWFWh7NsxhjkUF9xGq5BmKRAj3oJy+NHy9P0Rvl0Sq+hIESzjBZ1lprLytWb+4iQLlVtwdvNu1idod9ZeFbnyzxmltTrGZdaGDWI88CJQ4NxEqKfw+jChkKeUtf9HZ3vNFaSS4lwwC8tIMEzHC45PjwOee/UR8AQtpKFyxWvgkHtiYv9mN7gQ2WROwcc30dZfkTY9j5nP1pA9NqjO7rT9E7rmyGNCNsLs4aaXX/0O3a/HovukGuIh0VUjgTlb7Cp2dAih+hty3PElMM3VJLdAZElXksmo4sGGlZWtA== From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= , Yanan Wang , Marcel Apfelbaum , Paolo Bonzini , Mahmoud Mandour , Pierrick Bouvier , Alexandre Iooss , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Eduardo Habkost , Richard Henderson Subject: [PATCH v4 16/18] plugins: remove non per_vcpu inline operation from API Date: Tue, 13 Feb 2024 13:40:06 +0400 Message-ID: <20240213094009.150349-17-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240213094009.150349-1-pierrick.bouvier@linaro.org> References: <20240213094009.150349-1-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::42f; envelope-from=pierrick.bouvier@linaro.org; helo=mail-wr1-x42f.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: 1707817338774100001 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 Reviewed-by: Richard Henderson --- 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 f6fa10a0f56..c547c5c83ea 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