From nobody Mon Feb 9 14:03:09 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=gmail.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1626423044120742.1052432029174; Fri, 16 Jul 2021 01:10:44 -0700 (PDT) Received: from localhost ([::1]:60992 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m4Ivi-0004Ii-37 for importer@patchew.org; Fri, 16 Jul 2021 04:10:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56074) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m4IpV-0007Ss-Dz for qemu-devel@nongnu.org; Fri, 16 Jul 2021 04:04:17 -0400 Received: from mail-wm1-x32c.google.com ([2a00:1450:4864:20::32c]:54784) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m4IpT-0005Mu-E5 for qemu-devel@nongnu.org; Fri, 16 Jul 2021 04:04:17 -0400 Received: by mail-wm1-x32c.google.com with SMTP id f190so3675922wmf.4 for ; Fri, 16 Jul 2021 01:04:15 -0700 (PDT) Received: from localhost.localdomain ([41.34.125.69]) by smtp.gmail.com with ESMTPSA id p12sm6558046wma.19.2021.07.16.01.04.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Jul 2021 01:04:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=FX5v+BKehc6DaRJmhosDluKPZkJTepgwovTu+vU/T/Y=; b=fTVTCqk4AEGprVqe1rUa0GucY5VVt6w5vvdXce9/TiE9AaEBxMBKDYeyN+3M6zTlkJ p+gVuTYvpvuz8qwMyd6OcJWvY/L8dH9FKevMlhCseVXSIZ/lFkMUjY3SbuR+EYLBvbst Zs3vZSr3CNmpj8FexAR18Fa30eOA0j588jDFn3OUm6VzsWWFNLl1nIo1c/V/ZI7ZjEAw BnLFb6SCv+hHg+XPecVrTwcAOCiYhj/O0Xle9jAReFXXG6yO8GSN+gdUNRO2rAhgd+UF ck1F7mffTRzQRqgSJEVdPxbBSG26E6IlQ80WB5AXr1HVa6jk9kPNApVN8Qm1YTOgB/8e P0Tg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=FX5v+BKehc6DaRJmhosDluKPZkJTepgwovTu+vU/T/Y=; b=Xsaqdtri/FupLQZ0/JzbINCadVDTV+AVTrUAI0iw0Upmn94+myyOqGF2Wc/RvQk2as I9EMvlxeXZyQ7NIuwBVuUlRzTreA+U0QM68UWHK51OYTB2XNJ47cmtWLwUmp/EtEf681 WPOLEE0fck8aYmf2K3eUXfWQ4PhmWQ+Tg3kNIpBsto3yYk9UE83hecSVd3ogBxd3Z5vx EDrS/vv25ZC0sRfOKEL2/B4M6BaT5ULmjmt/rUuLlcKWd1THKitGJkgR+CYT48OAlwee MyEcIK24FJ4kzY/2D9joXVIG8ISIj8K5o0Dlf3cwkr3hIzCxnv56GMzaydTNr3zt8PiW jMXw== X-Gm-Message-State: AOAM530FYE7hkpjq3zbnV6Red0VKRREHmXKU1I53ZIF1Jr5rtNnE3ap+ jjZ07vW160DpeYBaIe8xRzIBI/SNWgUfTg== X-Google-Smtp-Source: ABdhPJzmcLoBBmoPFZ+4Gdtd1WNevO0sGOtcw0Gn5QdH3Diog/Qb9WlTq8H70V003m18CwXlDGms9w== X-Received: by 2002:a05:600c:221a:: with SMTP id z26mr15333634wml.34.1626422653662; Fri, 16 Jul 2021 01:04:13 -0700 (PDT) From: Mahmoud Mandour To: qemu-devel@nongnu.org Subject: [PATCH 6/9] plugins/hwprofile: adapt to the new plugin arguments scheme Date: Fri, 16 Jul 2021 10:03:42 +0200 Message-Id: <20210716080345.136784-7-ma.mandourr@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210716080345.136784-1-ma.mandourr@gmail.com> References: <20210716080345.136784-1-ma.mandourr@gmail.com> 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::32c; envelope-from=ma.mandourr@gmail.com; helo=mail-wm1-x32c.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, FREEMAIL_FROM=0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mahmoud Mandour , cota@braap.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1626423045574100001 Content-Type: text/plain; charset="utf-8" Parsing boolean arguments correctly (e.g. pattern=3Don or source=3Dfalse). Introduced a new "track" argument that takes a [read|write] value. This substitutes passing read or write to "arg=3D" that is deprecated. Also, matches are now taken one by one through the "match" argument. Signed-off-by: Mahmoud Mandour --- contrib/plugins/hwprofile.c | 39 +++++++++++++++++++++++++------------ docs/devel/tcg-plugins.rst | 8 ++++---- 2 files changed, 31 insertions(+), 16 deletions(-) diff --git a/contrib/plugins/hwprofile.c b/contrib/plugins/hwprofile.c index faf216ac00..691d4edb0c 100644 --- a/contrib/plugins/hwprofile.c +++ b/contrib/plugins/hwprofile.c @@ -259,27 +259,42 @@ int qemu_plugin_install(qemu_plugin_id_t id, const qe= mu_info_t *info, int argc, char **argv) { int i; + g_autoptr(GString) matches_raw =3D g_string_new(""); =20 for (i =3D 0; i < argc; i++) { char *opt =3D argv[i]; - if (g_strcmp0(opt, "read") =3D=3D 0) { - rw =3D QEMU_PLUGIN_MEM_R; - } else if (g_strcmp0(opt, "write") =3D=3D 0) { - rw =3D QEMU_PLUGIN_MEM_W; - } else if (g_strcmp0(opt, "pattern") =3D=3D 0) { - pattern =3D true; - } else if (g_strcmp0(opt, "source") =3D=3D 0) { - source =3D true; - } else if (g_str_has_prefix(opt, "match")) { - gchar **parts =3D g_strsplit(opt, "=3D", 2); + g_autofree char **tokens =3D g_strsplit(opt, "=3D", 2); + + if (g_strcmp0(tokens[0], "track") =3D=3D 0) { + if (g_strcmp0(tokens[1], "read") =3D=3D 0) { + rw =3D QEMU_PLUGIN_MEM_R; + } else if (g_strcmp0(tokens[1], "write") =3D=3D 0) { + rw =3D QEMU_PLUGIN_MEM_W; + } else { + fprintf(stderr, "invalid value for track: %s\n", tokens[1]= ); + return -1; + } + } else if (g_strcmp0(tokens[0], "pattern") =3D=3D 0) { + if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &pattern)) { + fprintf(stderr, "boolean argument parsing failed: %s\n", o= pt); + return -1; + } + } else if (g_strcmp0(tokens[0], "source") =3D=3D 0) { + if (!qemu_plugin_bool_parse(tokens[0], tokens[1], &source)) { + fprintf(stderr, "boolean argument parsing failed: %s\n", o= pt); + return -1; + } + } else if (g_strcmp0(tokens[0], "match") =3D=3D 0) { check_match =3D true; - matches =3D g_strsplit(parts[1], ",", -1); - g_strfreev(parts); + g_string_append_printf(matches_raw, "%s,", tokens[1]); } else { fprintf(stderr, "option parsing failed: %s\n", opt); return -1; } } + if (check_match) { + matches =3D g_strsplit(matches_raw->str, ",", -1); + } =20 if (source && pattern) { fprintf(stderr, "can only currently track either source or pattern= .\n"); diff --git a/docs/devel/tcg-plugins.rst b/docs/devel/tcg-plugins.rst index 6ddf9c28c0..753f56ac42 100644 --- a/docs/devel/tcg-plugins.rst +++ b/docs/devel/tcg-plugins.rst @@ -290,22 +290,22 @@ which will eventually report:: The hwprofile tool can only be used with system emulation and allows the user to see what hardware is accessed how often. It has a number of op= tions: =20 - * arg=3Dread or arg=3Dwrite + * track=3Dread or track=3Dwrite =20 By default the plugin tracks both reads and writes. You can use one of these options to limit the tracking to just one class of accesses. =20 - * arg=3Dsource + * source =20 Will include a detailed break down of what the guest PC that made the - access was. Not compatible with arg=3Dpattern. Example output:: + access was. Not compatible with the pattern option. Example output:: =20 cirrus-low-memory @ 0xfffffd00000a0000 pc:fffffc0000005cdc, 1, 256 pc:fffffc0000005ce8, 1, 256 pc:fffffc0000005cec, 1, 256 =20 - * arg=3Dpattern + * pattern =20 Instead break down the accesses based on the offset into the HW region. This can be useful for seeing the most used registers of a --=20 2.25.1