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Wed, 18 Dec 2019 19:45:59 +0000 From: Tom Lendacky To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Brijesh Singh Subject: [PATCH v1 0/2] MMIO mask fix for AMD memory encryption support Date: Wed, 18 Dec 2019 13:45:45 -0600 Message-Id: X-Mailer: git-send-email 2.17.1 Content-Type: text/plain X-ClientProxiedBy: DM6PR21CA0007.namprd21.prod.outlook.com (2603:10b6:5:174::17) To DM6PR12MB3163.namprd12.prod.outlook.com (2603:10b6:5:15e::26) MIME-Version: 1.0 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [165.204.77.1] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: dbc974ea-6371-42d4-e631-08d783f2e80d X-MS-TrafficTypeDiagnostic: DM6PR12MB2876:|DM6PR12MB2876: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:203; X-Forefront-PRVS: 0255DF69B9 X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10009020)(4636009)(396003)(136003)(376002)(346002)(39860400002)(366004)(189003)(199004)(478600001)(5660300002)(81156014)(66946007)(81166006)(6486002)(6512007)(186003)(52116002)(54906003)(36756003)(86362001)(6666004)(4326008)(8676002)(66476007)(8936002)(4744005)(66556008)(2616005)(966005)(6506007)(2906002)(26005)(316002);DIR:OUT;SFP:1101;SCL:1;SRVR:DM6PR12MB2876;H:DM6PR12MB3163.namprd12.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: m38ao21HFNkExqLhnmzcqELXjFMk3YYT+u1jZ4Bmyqc/5woQ/wD7KO2747fBlMeWZPYiqAqr+u8MpETNgaXA4aOtfFKBPL8V2qfPsoy1ihvg5BX8ymJnHMVWB8R7o+5lZXmZIZvwRASdLt6Dbf/RF6ldMMAO1yuFC568NHviT2mkXRGfihS8tBwKVc5OKF5fMsT5raYfjbNs2QbZFUy1xPIy/WkF2My+GuNzJB7gW1ZIZ17O5rKMD5DgXWfXwrs6/F0D3Jdx2wsS/fBbtFvjGRW/9zDVzdeFFaFLNtjixx1G/G5WnXZl37CTQlheZMcL04pkGmscO/1WS0yepeM99hJepdhsh8AMhvZGENPIwsZ5pO//NJm4TAx1E/VCOUyWOXxDfATt3FxDN0Onp/11TVIZAwy9hY/wru23FsH1FCWBRTCn9mg89hq8cGwJom4ljzWCacccNhdmKSiPEqnOfi7/1Np1pnIi957Q92CpmkM= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: dbc974ea-6371-42d4-e631-08d783f2e80d X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Dec 2019 19:45:59.7392 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: nke1CMjiGZRQPYgxxaexU2yOwN0qjWBJgSPIBGf/FQrv9rqxrSjcbIW7dkoaaI2SnobPPRXCPPeoHc5W+SIkOg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB2876 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series ensures that a valid MMIO SPTE mask can be generated under SVM when memory encryption is enabled. The patchset includes: - Add an optional callback to return a reserved bit(s) mask - Implement the callback in SVM --- Patches based on https://git.kernel.org/pub/scm/virt/kvm/kvm.git next commit: 7d73710d9ca2 ("kvm: vmx: Stop wasting a page for guest_msrs") Tom Lendacky (2): KVM: x86/mmu: Allow for overriding MMIO SPTE mask KVM: SVM: Implement reserved bit callback to set MMIO SPTE mask arch/x86/include/asm/kvm_host.h | 4 ++- arch/x86/kvm/mmu/mmu.c | 54 +++++++++++++++++++++------------ arch/x86/kvm/svm.c | 42 +++++++++++++++++++++++++ arch/x86/kvm/x86.c | 2 +- 4 files changed, 80 insertions(+), 22 deletions(-) -- 2.17.1