From nobody Sun Dec 22 06:24:20 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=reject dis=none) header.from=google.com ARC-Seal: i=1; a=rsa-sha256; t=1725535433; cv=none; d=zohomail.com; s=zohoarc; b=TxwQ1DL6BnyhLm9CqknteEuEMvNnLykdjvA6tncDm2tGN7879P3ogZ3jxPsfbQ6JCo4rYWfF6v0bF2FoSq873bJCb3W+behuWwmlL5sSs3bo0bTp8o2y37k3vhkPI1tQlS+4V25pYoq1RaRCMfjs7EBJFIy042mJDx6gNreYBK8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1725535433; h=Content-Type: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=WFONln33w8RztWsDe8hthoqY7bBuV5gzQ95yPuNFG3Q=; b=LrBzF5oYD+i1DR6j+9EARN9V2eLWjeDjE/EmaAp30BPKlB3s0YxI/gU1J/GNZJJGD90yxAdxZ49svtqjuQcSiaIIQM+VG7suO2AHzi+OT3N+XG50dHwx78+4ksaf/pk6kPNcFqW0deyuPoSYrLbp23puuvH25JqxsJotTwgQSRg= 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=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1725535433792122.50765194762278; Thu, 5 Sep 2024 04:23:53 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smAZq-0008Qh-CI; Thu, 05 Sep 2024 07:23:02 -0400 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 <3hpTZZggKClMH2z8yC3519916z.x97Bz7F-yzGz689818F.9C1@flex--whendrik.bounces.google.com>) id 1smAZf-0008Eu-EQ for qemu-devel@nongnu.org; Thu, 05 Sep 2024 07:22:51 -0400 Received: from mail-yb1-xb4a.google.com ([2607:f8b0:4864:20::b4a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <3hpTZZggKClMH2z8yC3519916z.x97Bz7F-yzGz689818F.9C1@flex--whendrik.bounces.google.com>) id 1smAZd-0002xE-EZ for qemu-devel@nongnu.org; Thu, 05 Sep 2024 07:22:51 -0400 Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-e17bb508bb9so1963061276.2 for ; Thu, 05 Sep 2024 04:22:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1725535367; x=1726140167; darn=nongnu.org; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:from:to:cc:subject:date:message-id :reply-to; bh=WFONln33w8RztWsDe8hthoqY7bBuV5gzQ95yPuNFG3Q=; b=hWVYq0igro+Z6wWhG9MSjUEYdLZrwOnmCZ9JPPurLNmLBgtJ244wl9TwTsiA9oQeY+ C5easSEUuWYSNopZvJVdLOj3gI6QYYqELwSOAnhAqun4ue3GJtqKMRx4BxEuJkTHzcKX s0Shr1A/xovTpGeWNA5nCP05QuGD3pcFd6eFh/kT2qMjT6oeMDqw76aGlAEc5/SP5pqS lFcIJ0RHyX4Z0nrjxV4ofKpb4GW83ZMlLtpFz8exxn28zlWqfC1JIbhX+8fZTfYwAgPD U5uhvigUs5REYnQiMTXA1w5FMM+QVLJscXI3Jv3TDc8HuN9MzTTjqcpolLEpjsXPrWsU OuoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725535367; x=1726140167; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=WFONln33w8RztWsDe8hthoqY7bBuV5gzQ95yPuNFG3Q=; b=vi8vvZ54il8Jli7KB2FrkdKZhHDinnsTAQkTgwXgKOYTcE/FEZ06ZbCHaMcb2RK5MI 6b31xbAqktIL7SX85Ij3+JL7HFRn3tMrXeBTi83FzFaQPmUVmJzVEaoe3KgQeVA4SaMp HuoblS2lpQCTgqV7EpwyzGTe81r8f+kY0RLCMxsNvmHXxOqPVRowPAwM8optKVEWvO96 TFzE+pzmpiRmPzxUA2dyHTSzYPR7uV5vh8ZUCOZm3Ue/1koaVlna3ASt4mFmRuR0Mbwk IsosFTP6/NBSTCuOxeAaDDG1F/V/C5pKekcrvzQx7sXawm7BK2zZTt8NumweN+zdP6/k cbsA== X-Gm-Message-State: AOJu0Yy1bYlgZ+aCMEkiLPs/IVR26OLsrTvo0BhEGzHSO8DTdd2+YM+R Jrux9kuU81AitFtMgQNjtnnXWAxA2wu7MJCLiolb/cbsQWIyZiL6SuerxaC9Fe5zsQTDP1Sziqr GLUqJNVw5HjrHqwnbkRcy7MGQ5vwFIgv1ok5/AENraM2Y1Z3vrPWRhMUQkJquTiIg8UnJgIOyg1 o6bnOMvwu6xQYXsv5XaBH+eAv1kEGlyo8GmWGA1Hj3Ag== X-Google-Smtp-Source: AGHT+IHHgE/p+v3ZgUFP4oOLPGTTSGhaG1an7WqKnEeO7eru4aSFbDwnNJhuymW4SII74UqDldsGt+b+Dfc6ug== X-Received: from whendrik-specialist-workstation.c.googlers.com ([fda3:e722:ac3:cc00:130:7cd9:ac11:98f1]) (user=whendrik job=sendgmr) by 2002:a5b:1:0:b0:e17:8e4f:981a with SMTP id 3f1490d57ef6-e1a7a3d0178mr944904276.11.1725535366854; Thu, 05 Sep 2024 04:22:46 -0700 (PDT) Date: Thu, 5 Sep 2024 11:22:30 +0000 In-Reply-To: <20240905112237.3586972-1-whendrik@google.com> Mime-Version: 1.0 References: <20240905112237.3586972-1-whendrik@google.com> X-Mailer: git-send-email 2.46.0.469.g59c65b2a67-goog Message-ID: <20240905112237.3586972-2-whendrik@google.com> Subject: [PATCH v2 1/8] i386: Add Intel RDT device and State to config. From: Hendrik Wuethrich To: qemu-devel@nongnu.org, Jonathan.Cameron@huawei.com, eduardo@habkost.net, richard.henderson@linaro.org, marcel.apfelbaum@gmail.com, mst@redhat.com, pbonzini@redhat.com Cc: peternewman@google.com, "=?UTF-8?q?=E2=80=AAHendrik=20W=C3=BCthrich?=" 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=2607:f8b0:4864:20::b4a; envelope-from=3hpTZZggKClMH2z8yC3519916z.x97Bz7F-yzGz689818F.9C1@flex--whendrik.bounces.google.com; helo=mail-yb1-xb4a.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, 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, USER_IN_DEF_DKIM_WL=-7.5 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 @google.com) X-ZM-MESSAGEID: 1725535434696116600 Content-Type: text/plain; charset="utf-8" From: =E2=80=AAHendrik W=C3=BCthrich Change config to show RDT, add minimal code to the rdt.c module to make sure things still compile. Signed-off-by: Hendrik W=C3=BCthrich --- hw/i386/Kconfig | 4 ++ hw/i386/meson.build | 1 + hw/i386/rdt.c | 96 +++++++++++++++++++++++++++++++++++++++++++ include/hw/i386/rdt.h | 25 +++++++++++ target/i386/cpu.h | 3 ++ 5 files changed, 129 insertions(+) create mode 100644 hw/i386/rdt.c create mode 100644 include/hw/i386/rdt.h diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig index f4a33b6c08..4dd05ed6f2 100644 --- a/hw/i386/Kconfig +++ b/hw/i386/Kconfig @@ -10,6 +10,9 @@ config SGX bool depends on KVM =20 +config RDT + bool + config PC bool imply APPLESMC @@ -26,6 +29,7 @@ config PC imply QXL imply SEV imply SGX + imply RDT imply TEST_DEVICES imply TPM_CRB imply TPM_TIS_ISA diff --git a/hw/i386/meson.build b/hw/i386/meson.build index 03aad10df7..fdbf5962b5 100644 --- a/hw/i386/meson.build +++ b/hw/i386/meson.build @@ -21,6 +21,7 @@ i386_ss.add(when: 'CONFIG_VMPORT', if_true: files('vmport= .c')) i386_ss.add(when: 'CONFIG_VTD', if_true: files('intel_iommu.c')) i386_ss.add(when: 'CONFIG_SGX', if_true: files('sgx-epc.c','sgx.c'), if_false: files('sgx-stub.c')) +i386_ss.add(when: 'CONFIG_RDT', if_true: files('rdt.c')) =20 i386_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-common.c')) i386_ss.add(when: 'CONFIG_PC', if_true: files( diff --git a/hw/i386/rdt.c b/hw/i386/rdt.c new file mode 100644 index 0000000000..934f7fbf75 --- /dev/null +++ b/hw/i386/rdt.c @@ -0,0 +1,96 @@ +/* + * Intel Resource Director Technology (RDT). + * + * Copyright 2024 Google LLC + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WIT= HOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "hw/i386/rdt.h" +#include "qemu/osdep.h" /* Needs to be included before isa.h* / +#include "hw/isa/isa.h" +#include "hw/qdev-properties.h" +#include "qom/object.h" + +/* Max counts for allocation masks or CBMs. In other words, the size of re= spective MSRs*/ +#define RDT_MAX_L3_MASK_COUNT 128 +#define RDT_MAX_L2_MASK_COUNT 48 +#define RDT_MAX_MBA_THRTL_COUNT 31 + +#define TYPE_RDT "rdt" +#define RDT_NUM_RMID_PROP "rmids" + +OBJECT_DECLARE_TYPE(RDTState, RDTStateClass, RDT); + +struct RDTMonitor { + uint64_t count_local; + uint64_t count_remote; + uint64_t count_l3; +}; + +struct RDTAllocation { + uint32_t active_cos; +}; + +struct RDTStatePerCore { + uint32_t active_rmid; + GArray *monitors; + + /*Parent RDTState*/ + RDTState *rdtstate; +}; + +/*One instance of RDT-internal state to be shared by all cores*/ +struct RDTState { + ISADevice parent; + + /*Max amount of RMIDs*/ + uint32_t rmids; + + /*Per core state*/ + RDTStatePerCore *rdtInstances; + RDTAllocation *allocations; + + /*RDT Allocation bitmask MSRs*/ + uint32_t msr_L3_ia32_mask_n[RDT_MAX_L3_MASK_COUNT]; + uint32_t msr_L2_ia32_mask_n[RDT_MAX_L2_MASK_COUNT]; + uint32_t ia32_L2_qos_ext_bw_thrtl_n[RDT_MAX_MBA_THRTL_COUNT]; +}; + +struct RDTStateClass { +}; + +OBJECT_DEFINE_TYPE(RDTState, rdt, RDT, ISA_DEVICE); + +static Property rdt_properties[] =3D { + DEFINE_PROP_UINT32(RDT_NUM_RMID_PROP, RDTState, rmids, 256), + DEFINE_PROP_END_OF_LIST(), +}; + +static void rdt_init(Object *obj) +{ +} + +static void rdt_finalize(Object *obj) +{ +} + +static void rdt_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->hotpluggable =3D false; + dc->desc =3D "RDT"; + dc->user_creatable =3D true; + + device_class_set_props(dc, rdt_properties); +} + diff --git a/include/hw/i386/rdt.h b/include/hw/i386/rdt.h new file mode 100644 index 0000000000..a21d95b265 --- /dev/null +++ b/include/hw/i386/rdt.h @@ -0,0 +1,25 @@ +/* + * Intel Resource Director Technology (RDT). + * + * Copyright 2024 Google LLC + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WIT= HOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef HW_RDT_H +#define HW_RDT_H + +typedef struct RDTState RDTState; +typedef struct RDTStatePerCore RDTStatePerCore; +typedef struct RDTMonitor RDTMonitor; +typedef struct RDTAllocation RDTAllocation; + +#endif diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 1e121acef5..a2941f98eb 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -2143,6 +2143,9 @@ struct ArchCPU { struct MemoryRegion *cpu_as_root, *cpu_as_mem, *smram; Notifier machine_done; =20 + /* Help the RDT MSRs find the RDT device */ + struct RDTStatePerCore *rdt; + struct kvm_msrs *kvm_msr_buf; =20 int32_t node_id; /* NUMA node this CPU belongs to */ --=20 2.46.0.469.g59c65b2a67-goog