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b=c2G7Y2MCOajtTNrB/Gz6q05hSJQeRZvXEeMzEcuw+/HjxiS6ty8fpUVXKZrDD/B9RFE732/p6EnAYvq5aCXya9reuCBwOvUHPKNO1q4DHeEs7C6skByJ5bXTSWlFaTnf3ysU+d/sxFY+sJ2e/AjxH3lLqePu/C0DZGaR4xLaAMo= Received: from BYAPR21MB1688.namprd21.prod.outlook.com (2603:10b6:a02:bf::26) by DM4PR21MB3705.namprd21.prod.outlook.com (2603:10b6:8:a0::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5834.6; Fri, 18 Nov 2022 02:38:37 +0000 Received: from BYAPR21MB1688.namprd21.prod.outlook.com ([fe80::1e50:78ec:6954:d6dd]) by BYAPR21MB1688.namprd21.prod.outlook.com ([fe80::1e50:78ec:6954:d6dd%4]) with mapi id 15.20.5857.008; Fri, 18 Nov 2022 02:38:37 +0000 From: "Michael Kelley (LINUX)" To: Haiyang Zhang , "hpa@zytor.com" , KY Srinivasan , "wei.liu@kernel.org" , Dexuan Cui , "luto@kernel.org" , "peterz@infradead.org" , "davem@davemloft.net" , "edumazet@google.com" , "kuba@kernel.org" , "pabeni@redhat.com" , "lpieralisi@kernel.org" , "robh@kernel.org" , "kw@linux.com" , "bhelgaas@google.com" , "arnd@arndb.de" , "hch@infradead.org" , "m.szyprowski@samsung.com" , "robin.murphy@arm.com" , "thomas.lendacky@amd.com" , "brijesh.singh@amd.com" , "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , Tianyu Lan , "kirill.shutemov@linux.intel.com" , "sathyanarayanan.kuppuswamy@linux.intel.com" , "ak@linux.intel.com" , "isaku.yamahata@intel.com" , "Williams, Dan J" , "jane.chu@oracle.com" , "seanjc@google.com" , "tony.luck@intel.com" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-hyperv@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-arch@vger.kernel.org" , "iommu@lists.linux.dev" Subject: RE: [Patch v3 13/14] PCI: hv: Add hypercalls to read/write MMIO space Thread-Topic: [Patch v3 13/14] PCI: hv: Add hypercalls to read/write MMIO space Thread-Index: AQHY+es8ed4NTpMKIkC2HrScaVa/VK5DcksAgACGFMA= Date: Fri, 18 Nov 2022 02:38:37 +0000 Message-ID: References: <1668624097-14884-1-git-send-email-mikelley@microsoft.com> <1668624097-14884-14-git-send-email-mikelley@microsoft.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ActionId=00faa51b-4819-41a9-84f8-9620f95ed350;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ContentBits=0;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Enabled=true;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Method=Standard;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Name=Internal;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SetDate=2022-11-17T18:24:26Z;MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SiteId=72f988bf-86f1-41af-91ab-2d7cd011db47; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR21MB1688.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6499f49a-f5fd-4128-c043-08dac90dff06 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Nov 2022 02:38:37.6111 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: eo0NFnoiDAv7oR4O5qlyq4nGl9qDauY5Q6rsvXE6clBL0+O6/kOpqmYcoYITviyMSlfos0jAkOtlh3nrZfLktlXmGBH04hp3QayOYWMlhKk= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR21MB3705 Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org From: Haiyang Zhang Sent: Thursday, November 17, 2= 022 10:33 AM > >=20 > > From: Michael Kelley (LINUX) Sent: Wednesday, = November 16, 2022 1:42 PM > > > > To support PCI pass-thru devices in Confidential VMs, Hyper-V > > has added hypercalls to read and write MMIO space. Add the > > appropriate definitions to hyperv-tlfs.h and implement > > functions to make the hypercalls. These functions are used > > in a subsequent patch. > > > > Co-developed-by: Dexuan Cui > > Signed-off-by: Dexuan Cui > > Signed-off-by: Michael Kelley > > --- >=20 > Reviewed-by: Haiyang Zhang >=20 > One question - Will you put the document in patch 0 directly into some pl= ace of > the src tree? >=20 Not directly. Patch 0 is supposed to be a summary of a patch set, and it d= oesn't have a place in the 'git' repo, though it will live on in the email archive= s. But the details are captured in the individual patch commit messages, particularly = in Patch 7 for this series. Separately, I want to add Confidential VMs as a topic in the Hyper-V docume= ntation under Documentation/virt/hyperv. I'll do that once our work related to con= fidential computing is relatively stable. Michael