From patchwork Thu Mar 21 14:40:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhao Liu X-Patchwork-Id: 13598787 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F387F84FD8 for ; Thu, 21 Mar 2024 14:27:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711031243; cv=none; b=Ti/k6hzoUxwMnYfIfqRIm+H1Xnu424aN6lcfNZI+nuTeEW4e/ob31jfQNBd4+vKhPwaYVBEARZJGofeuqedXOloIyiOYU5T5lB2X2UL8V+XdgAWGEQKkkOOqwwWTR4IzMt7edvCknuVyG0kbMQlJ9tNSR7H/bL+kk2RljqEqE2A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711031243; c=relaxed/simple; bh=lzFCM7hzDzVOEt2eiczVXmyNZngO0ts9zmWVhXGU1nY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Q8beNoBpqNpGUfZXLuZHzk3w7L4edxfSfLt1HglE8EX6p7276W1SGU5wYisYuG51sawf/Yt/2I3mOqKinLYkJslMQVDhZr2pXLV+lpwK9uXxTmG3MO1xJR8NdpDW3FLl00lTt0x/+D/ELr8ROWvMaLHLRu9B1KkmTOY3tryZUOA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=KXKZeQNQ; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="KXKZeQNQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1711031243; x=1742567243; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=lzFCM7hzDzVOEt2eiczVXmyNZngO0ts9zmWVhXGU1nY=; b=KXKZeQNQG9b3n6j243/PtA4Uqa5hU+GZlXW4RkA44+iE0SOZK7Mo6o/t ZqASdlDJAtR4Xp7mtO2yppNa1v2fJqFjtyl2aLMK/ZKPU9Knq2p2vTYMS FmfNuNktPACD3sFqrHznkrj+J5pAV4YyJBcuzvnMxYpaKmtK4oYujtixu U4trzlk8ssq5hqSiKktgOfg9QPlZvLJCawUqm0PAm3g2R0Sb7Pj+M7VcG W9iTgwxdYginJtlAKv/JUezQewiEcgpAeuPslxie9vfk3BHtlb0u9aA7o QtY96TXHdvBIqYswc3WaoxUWwvtxfevQquRxgOyBcHVp4cs0z+AHE70UX g==; X-IronPort-AV: E=McAfee;i="6600,9927,11020"; a="9806369" X-IronPort-AV: E=Sophos;i="6.07,143,1708416000"; d="scan'208";a="9806369" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2024 07:27:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,143,1708416000"; d="scan'208";a="14527816" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by orviesa009.jf.intel.com with ESMTP; 21 Mar 2024 07:27:17 -0700 From: Zhao Liu To: Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-D?= =?utf-8?q?aud=C3=A9?= , Yanan Wang , "Michael S . Tsirkin" , Richard Henderson , Paolo Bonzini , Eric Blake , Markus Armbruster , Marcelo Tosatti , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Xiaoyao Li Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, Zhenyu Wang , Zhuocheng Ding , Babu Moger , Yongwei Ma , Zhao Liu Subject: [PATCH v10 02/21] hw/core/machine: Support modules in -smp Date: Thu, 21 Mar 2024 22:40:29 +0800 Message-Id: <20240321144048.3699388-3-zhao1.liu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240321144048.3699388-1-zhao1.liu@linux.intel.com> References: <20240321144048.3699388-1-zhao1.liu@linux.intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Zhao Liu Add "modules" parameter parsing support in -smp. Suggested-by: Xiaoyao Li Tested-by: Yongwei Ma Signed-off-by: Zhao Liu Tested-by: Babu Moger Acked-by: Markus Armbruster --- Changes since v9: * Rebased on the SMP changes about unsupported "parameter=1" configurations. (Philippe) * Fixed typo about topology field. (Dapeng) Changes since v8: * Added module description in qemu_smp_opts. Changes since v7: * New commit to introduce module level in -smp. --- hw/core/machine-smp.c | 39 +++++++++++++++++++++++++++++++++------ hw/core/machine.c | 1 + qapi/machine.json | 3 +++ system/vl.c | 3 +++ 4 files changed, 40 insertions(+), 6 deletions(-) diff --git a/hw/core/machine-smp.c b/hw/core/machine-smp.c index 2e68fcfdfd79..2b93fa99c943 100644 --- a/hw/core/machine-smp.c +++ b/hw/core/machine-smp.c @@ -51,6 +51,10 @@ static char *cpu_hierarchy_to_string(MachineState *ms) g_string_append_printf(s, " * clusters (%u)", ms->smp.clusters); } + if (mc->smp_props.modules_supported) { + g_string_append_printf(s, " * modules (%u)", ms->smp.modules); + } + g_string_append_printf(s, " * cores (%u)", ms->smp.cores); g_string_append_printf(s, " * threads (%u)", ms->smp.threads); @@ -88,6 +92,7 @@ void machine_parse_smp_config(MachineState *ms, unsigned sockets = config->has_sockets ? config->sockets : 0; unsigned dies = config->has_dies ? config->dies : 0; unsigned clusters = config->has_clusters ? config->clusters : 0; + unsigned modules = config->has_modules ? config->modules : 0; unsigned cores = config->has_cores ? config->cores : 0; unsigned threads = config->has_threads ? config->threads : 0; unsigned maxcpus = config->has_maxcpus ? config->maxcpus : 0; @@ -103,6 +108,7 @@ void machine_parse_smp_config(MachineState *ms, (config->has_sockets && config->sockets == 0) || (config->has_dies && config->dies == 0) || (config->has_clusters && config->clusters == 0) || + (config->has_modules && config->modules == 0) || (config->has_cores && config->cores == 0) || (config->has_threads && config->threads == 0) || (config->has_maxcpus && config->maxcpus == 0)) { @@ -115,6 +121,20 @@ void machine_parse_smp_config(MachineState *ms, * If not supported by the machine, a topology parameter must be * omitted. */ + if (!mc->smp_props.modules_supported && config->has_modules) { + if (config->modules > 1) { + error_setg(errp, "modules not supported by this " + "machine's CPU topology"); + return; + } else { + /* Here modules only equals 1 since we've checked zero case. */ + warn_report("Deprecated CPU topology (considered invalid): " + "Unsupported modules parameter mustn't be " + "specified as 1"); + } + } + modules = modules > 0 ? modules : 1; + if (!mc->smp_props.clusters_supported && config->has_clusters) { if (config->clusters > 1) { error_setg(errp, "clusters not supported by this " @@ -185,11 +205,13 @@ void machine_parse_smp_config(MachineState *ms, cores = cores > 0 ? cores : 1; threads = threads > 0 ? threads : 1; sockets = maxcpus / - (drawers * books * dies * clusters * cores * threads); + (drawers * books * dies * clusters * + modules * cores * threads); } else if (cores == 0) { threads = threads > 0 ? threads : 1; cores = maxcpus / - (drawers * books * sockets * dies * clusters * threads); + (drawers * books * sockets * dies * + clusters * modules * threads); } } else { /* prefer cores over sockets since 6.2 */ @@ -197,22 +219,26 @@ void machine_parse_smp_config(MachineState *ms, sockets = sockets > 0 ? sockets : 1; threads = threads > 0 ? threads : 1; cores = maxcpus / - (drawers * books * sockets * dies * clusters * threads); + (drawers * books * sockets * dies * + clusters * modules * threads); } else if (sockets == 0) { threads = threads > 0 ? threads : 1; sockets = maxcpus / - (drawers * books * dies * clusters * cores * threads); + (drawers * books * dies * clusters * + modules * cores * threads); } } /* try to calculate omitted threads at last */ if (threads == 0) { threads = maxcpus / - (drawers * books * sockets * dies * clusters * cores); + (drawers * books * sockets * dies * + clusters * modules * cores); } } - total_cpus = drawers * books * sockets * dies * clusters * cores * threads; + total_cpus = drawers * books * sockets * dies * + clusters * modules * cores * threads; maxcpus = maxcpus > 0 ? maxcpus : total_cpus; cpus = cpus > 0 ? cpus : maxcpus; @@ -222,6 +248,7 @@ void machine_parse_smp_config(MachineState *ms, ms->smp.sockets = sockets; ms->smp.dies = dies; ms->smp.clusters = clusters; + ms->smp.modules = modules; ms->smp.cores = cores; ms->smp.threads = threads; ms->smp.max_cpus = maxcpus; diff --git a/hw/core/machine.c b/hw/core/machine.c index fe0579b7a7e9..9ff5170f8e31 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -878,6 +878,7 @@ static void machine_get_smp(Object *obj, Visitor *v, const char *name, .has_sockets = true, .sockets = ms->smp.sockets, .has_dies = true, .dies = ms->smp.dies, .has_clusters = true, .clusters = ms->smp.clusters, + .has_modules = true, .modules = ms->smp.modules, .has_cores = true, .cores = ms->smp.cores, .has_threads = true, .threads = ms->smp.threads, .has_maxcpus = true, .maxcpus = ms->smp.max_cpus, diff --git a/qapi/machine.json b/qapi/machine.json index 0840c91e70ec..3f6a5af10ba8 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -1635,6 +1635,8 @@ # # @clusters: number of clusters per parent container (since 7.0) # +# @modules: number of modules per parent container (since 9.1) +# # @cores: number of cores per parent container # # @threads: number of threads per core @@ -1648,6 +1650,7 @@ '*sockets': 'int', '*dies': 'int', '*clusters': 'int', + '*modules': 'int', '*cores': 'int', '*threads': 'int', '*maxcpus': 'int' } } diff --git a/system/vl.c b/system/vl.c index c64422298245..7756eac81e48 100644 --- a/system/vl.c +++ b/system/vl.c @@ -741,6 +741,9 @@ static QemuOptsList qemu_smp_opts = { }, { .name = "clusters", .type = QEMU_OPT_NUMBER, + }, { + .name = "modules", + .type = QEMU_OPT_NUMBER, }, { .name = "cores", .type = QEMU_OPT_NUMBER,