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11 Apr 2022 07:10:38 -0700 Message-ID: <56ed509d-a7cf-1fde-676c-a28eb204989b@intel.com> Date: Mon, 11 Apr 2022 07:10:43 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Content-Language: en-US To: Zhangfei Gao , Joerg Roedel , Fenghua Yu , jean-philippe References: <20220207230254.3342514-1-fenghua.yu@intel.com> <20220207230254.3342514-6-fenghua.yu@intel.com> From: Dave Hansen Subject: Re: [PATCH v4 05/11] iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit In-Reply-To: Cc: Ravi V Shankar , Tony Luck , Ashok Raj , Peter Zijlstra , x86 , linux-kernel , iommu , Ingo Molnar , Dave Hansen , Andy Lutomirski , Josh Poimboeuf , Borislav Petkov , Thomas Gleixner X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" T24gNC8xMS8yMiAwNzowMCwgWmhhbmdmZWkgR2FvIHdyb3RlOgo+IHdpdGggdGhpcyBwYXRjaHNl dCwgZWFjaCB0aW1lIGFmdGVyICBzYmluL25naW54LCBpb2FzaWQgaXMgZnJlZWQKPiBpbW1lZGlh dGVseS4gbHlueCB0ZXN0IHdpbGwgYWxsb2MgdGhlIHNhbWUgaW9hc2lkPTEuCgpUaGF0IGRvZXNu J3Qgc2VlbSByaWdodC4gIElzbid0ICdzYmluL25naW54JyBzdGlsbCBydW5uaW5nIHdoZW4gbHlu eApydW5zPyAgSG93IGNhbiB0aGV5IGdldCB0aGUgc2FtZSBpb2FzaWQ/CgpUaGlzIHNvdW5kcyBs aWtlIGEgcmVmY291bnRpbmcgcHJvYmxlbSwgbGlrZSB0aGF0IHRoZSBpb2FzaWQgd2Fzbid0CnBy b3Blcmx5IHJlZmNvdW50ZWQgYXMgbmdpbnggZm9ya2VkIGludG8gdGhlIGJhY2tncm91bmQuCgo+ IFRvIHZlcmlmeSwgaGFjayBjb21tZW50wqBtbV9wYXNpZF9kcm9wIGluwqBfX21tcHV0IHdpbGwg bWFrZSB0aGUgaXNzdWUKPiBkaXNhcHBlYXIuCj4gCj4gbG9nOiBhZnRlciBzYmluL25naW54Lgo+ IFvCoCDCoDk2LjUyNjczMF0gQ2FsbCB0cmFjZToKPiBbwqAgwqA5Ni41MjY3MzJdwqAgZHVtcF9i YWNrdHJhY2UrMHhlNC8weGYwCj4gW8KgIMKgOTYuNTI2NzQxXcKgIHNob3dfc3RhY2srMHgyMC8w eDcwCj4gW8KgIMKgOTYuNTI2NzQ0XcKgIGR1bXBfc3RhY2tfbHZsKzB4OGMvMHhiOAo+IFvCoCDC oDk2LjUyNjc1MV3CoCBkdW1wX3N0YWNrKzB4MTgvMHgzNAo+IFvCoCDCoDk2LjUyNjc1NF3CoCBp b2FzaWRfZnJlZSsweGRjLzB4ZmMKPiBbwqAgwqA5Ni41MjY3NTddwqAgbW1wdXQrMHgxMzgvMHgx NjAKPiBbwqAgwqA5Ni41MjY3NjBdwqAgZG9fZXhpdCsweDI4NC8weDlkMAo+IFvCoCDCoDk2LjUy Njc2NV3CoCBkb19ncm91cF9leGl0KzB4M2MvMHhhOAo+IFvCoCDCoDk2LjUyNjc2N13CoCBfX3dh a2VfdXBfcGFyZW50KzB4MC8weDM4Cj4gW8KgIMKgOTYuNTI2NzcwXcKgIGludm9rZV9zeXNjYWxs KzB4NGMvMHgxMTAKPiBbwqAgwqA5Ni41MjY3NzVdwqAgZWwwX3N2Y19jb21tb24uY29uc3Rwcm9w LjArMHg2OC8weDEyOAo+IFvCoCDCoDk2LjUyNjc3OF3CoCBkb19lbDBfc3ZjKzB4MmMvMHg5MAo+ IFvCoCDCoDk2LjUyNjc4MV3CoCBlbDBfc3ZjKzB4MzAvMHg5OAo+IFvCoCDCoDk2LjUyNjc4M13C oCBlbDB0XzY0X3N5bmNfaGFuZGxlcisweGIwLzB4YjgKPiBbwqAgwqA5Ni41MjY3ODVdwqAgZWww dF82NF9zeW5jKzB4MThjLzB4MTkwCgpJcyB0aGVyZSBub3RoaW5nIGJlZm9yZSB0aGlzIGNhbGwg dHJhY2U/ICBVc3VhbGx5IHRoZXJlIHdpbGwgYmUgYXQgbGVhc3QKc29tZSB3YXJuaW5nIHRleHQu Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1h aWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3Rz LmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==