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Wed, 20 Apr 2022 10:50:13 -0500 From: Suravee Suthikulpanit To: , CC: , , , , , , , Suravee Suthikulpanit Subject: [PATCH V2 0/2] KVM: SVM: Optimize AVIC incomplete IPI #vmexit handling Date: Wed, 20 Apr 2022 10:49:52 -0500 Message-ID: <20220420154954.19305-1-suravee.suthikulpanit@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d945a9aa-1a22-49f5-e51d-08da22e5775b X-MS-TrafficTypeDiagnostic: BY5PR12MB4869:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230001)(4636009)(46966006)(36840700001)(40470700004)(8936002)(508600001)(36860700001)(86362001)(356005)(40460700003)(110136005)(316002)(83380400001)(7696005)(336012)(47076005)(426003)(36756003)(54906003)(44832011)(70586007)(81166007)(4744005)(26005)(2906002)(70206006)(186003)(4326008)(1076003)(16526019)(5660300002)(2616005)(82310400005)(6666004)(8676002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Apr 2022 15:50:16.9994 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d945a9aa-1a22-49f5-e51d-08da22e5775b X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT066.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4869 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series introduce a fast-path when handling AVIC incomplete IPI #vmexit for AVIC, and introduce a new tracepoint for the slow-path processing. Regards, Suravee Change from v1: (https://lore.kernel.org/lkml/20220414051151.77710-1-suravee.suthikulpanit@amd.com/T/) * Rebased on top of Linux 5.18-rc3 * Patch 1/2: - Update commit shortlog to be more meaningful - Refactor to remove x2AVIC related logic for now, which will be included in the x2AVIC patch series. Suravee Suthikulpanit (2): KVM: SVM: Use target APIC ID to complete AVIC IRQs when possible KVM: SVM: Introduce trace point for the slow-path of avic_kic_target_vcpus arch/x86/kvm/svm/avic.c | 74 ++++++++++++++++++++++++++++++++++++++--- arch/x86/kvm/trace.h | 20 +++++++++++ arch/x86/kvm/x86.c | 1 + 3 files changed, 91 insertions(+), 4 deletions(-) -- 2.25.1