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[5.69.146.176]) by smtp.gmail.com with ESMTPSA id i40-20020a05600c4b2800b003dc42d48defsm4004276wmp.6.2023.02.02.02.05.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Feb 2023 02:05:26 -0800 (PST) Date: Thu, 2 Feb 2023 10:05:22 +0000 From: Jean-Philippe Brucker To: "Tian, Kevin" Cc: "maz@kernel.org" , "catalin.marinas@arm.com" , "will@kernel.org" , "joro@8bytes.org" , "robin.murphy@arm.com" , "james.morse@arm.com" , "suzuki.poulose@arm.com" , "oliver.upton@linux.dev" , "yuzenghui@huawei.com" , "smostafa@google.com" , "dbrazdil@google.com" , "ryan.roberts@arm.com" , "linux-arm-kernel@lists.infradead.org" , "kvmarm@lists.linux.dev" , "iommu@lists.linux.dev" , "Chen, Jason CJ" , "Zhang, Tina" Subject: Re: [RFC PATCH 00/45] KVM: Arm SMMUv3 driver for pKVM Message-ID: References: <20230201125328.2186498-1-jean-philippe@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230202_020529_138788_FF19C530 X-CRM114-Status: GOOD ( 29.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBGZWIgMDIsIDIwMjMgYXQgMDc6MDc6NTVBTSArMDAwMCwgVGlhbiwgS2V2aW4gd3Jv dGU6Cj4gPiBGcm9tOiBKZWFuLVBoaWxpcHBlIEJydWNrZXIgPGplYW4tcGhpbGlwcGVAbGluYXJv Lm9yZz4KPiA+IFNlbnQ6IFdlZG5lc2RheSwgRmVicnVhcnkgMSwgMjAyMyA4OjUzIFBNCj4gPiAK PiA+IDMuIFByaXZhdGUgSS9PIHBhZ2UgdGFibGVzCj4gPiAKPiA+IEEgZmxleGlibGUgYWx0ZXJu YXRpdmUgdXNlcyBwcml2YXRlIHBhZ2UgdGFibGVzIGluIHRoZSBTTU1VLCBlbnRpcmVseQo+ID4g ZGlzY29ubmVjdGVkIGZyb20gdGhlIENQVSBwYWdlIHRhYmxlcy4gV2l0aCB0aGlzIHRoZSBTTU1V IGNhbiBpbXBsZW1lbnQKPiA+IGEKPiA+IHJlZHVjZWQgc2V0IG9mIGZlYXR1cmVzLCBldmVuIHNo ZWQgYSBzdGFnZSBvZiB0cmFuc2xhdGlvbi4gVGhpcyBhbHNvCj4gPiBwcm92aWRlcyBhIHZpcnR1 YWwgSS9PIGFkZHJlc3Mgc3BhY2UgdG8gdGhlIGhvc3QsIHdoaWNoIGFsbG93cyBtb3JlCj4gPiBl ZmZpY2llbnQgbWVtb3J5IGFsbG9jYXRpb24gZm9yIGxhcmdlIGJ1ZmZlcnMsIGFuZCBmb3IgZGV2 aWNlcyB3aXRoCj4gPiBsaW1pdGVkIGFkZHJlc3NpbmcgYWJpbGl0aWVzLgo+ID4gCj4gPiBUaGlz IGlzIHRoZSBzb2x1dGlvbiBpbXBsZW1lbnRlZCBpbiB0aGlzIHNlcmllcy4gVGhlIGhvc3QgY3Jl YXRlcwo+ID4gSU9WQS0+SFBBIG1hcHBpbmdzIHdpdGggdHdvIGh5cGVyY2FsbHMgbWFwX3BhZ2Vz KCkgYW5kIHVubWFwX3BhZ2VzKCksCj4gPiBhbmQKPiA+IHRoZSBoeXBlcnZpc29yIHBvcHVsYXRl cyB0aGUgcGFnZSB0YWJsZXMuIFBhZ2UgdGFibGVzIGFyZSBhYnN0cmFjdGVkIGludG8KPiA+IElP TU1VIGRvbWFpbnMsIHdoaWNoIGFsbG93IG11bHRpcGxlIGRldmljZXMgdG8gc2hhcmUgdGhlIHNh bWUgYWRkcmVzcwo+ID4gc3BhY2UuIEFub3RoZXIgZm91ciBoeXBlcmNhbGxzLCBhbGxvY19kb21h aW4oKSwgYXR0YWNoX2RldigpLCBkZXRhY2hfZGV2KCkKPiA+IGFuZCBmcmVlX2RvbWFpbigpLCBt YW5hZ2UgdGhlIGRvbWFpbnMuCj4gPiAKPiAKPiBPdXQgb2YgY3VyaW9zaXR5LiBEb2VzIHZpcnRp by1pb21tdSBmaXQgaW4gdGhpcyB1c2FnZT8KCkkgZG9uJ3QgdGhpbmsgc28sIGJlY2F1c2UgeW91 IHN0aWxsIG5lZWQgYSBkcml2ZXIgZm9yIHRoZSBwaHlzaWNhbCBJT01NVQppbiB0aGUgaHlwZXJ2 aXNvci4gdmlydGlvLWlvbW11IHdvdWxkIG9ubHkgcmVwbGFjZSB0aGUgaHlwZXJjYWxsIGludGVy ZmFjZQp3aXRoIHF1ZXVlcywgYW5kIEkgZG9uJ3QgdGhpbmsgdGhhdCBidXlzIHVzIGFueXRoaW5n LgoKTWF5YmUgdmlydGlvIG9uIHRoZSBndWVzdCBzaWRlIGNvdWxkIGJlIGFkdmFudGFnZW91cywg YmVjYXVzZSB0aGF0CmludGVyZmFjZSBoYXMgdG8gYmUgc3RhYmxlIGFuZCB2aXJ0aW8gY29tZXMg d2l0aCBzdGFibGUgQVBJcyBmb3Igc2V2ZXJhbApjbGFzc2VzIG9mIGRldmljZXMuIEJ1dCBpbXBs ZW1lbnRpbmcgdmlydGlvIGluIHBrdm0gbWVhbnMgYSBsb3Qgb2YgZXh0cmEKY29kZSBzbyBpdCBu ZWVkcyB0byBiZSBjb25zaWRlcmVkIGNhcmVmdWxseS4KCj4gSWYgeWVzIHRoZW4gdGhlcmUgaXMK PiBubyBuZWVkIHRvIGFkZCBzcGVjaWZpYyBlbmxpZ2h0ZW5tZW50IGluIGV4aXN0aW5nIGlvbW11 IGRyaXZlcnMuIElmIG5vIAo+IHByb2JhYmx5IGJlY2F1c2UgYXMgbWVudGlvbmVkIGluIHRoZSBz dGFydCBhIGZ1bGwtZmxlZGdlZCBpb21tdSBkcml2ZXIgCj4gZG9lc24ndCBmaXQgblZIRSBzbyBs b3RzIG9mIHNtbXUgZHJpdmVyIGxvZ2ljIGhhcyB0byBiZSBrZXB0IGluIHRoZSBob3N0PwoKVG8g bWluaW1pemUgdGhlIGF0dGFjayBzdXJmYWNlIG9mIHRoZSBoeXBlcnZpc29yLCB3ZSBkb24ndCB3 YW50IHRvIGxvYWQKYW55IHN1cGVyZmx1b3VzIGNvZGUsIHNvIHRoZSBoeXBlcnZpc29yIHBhcnQg b2YgdGhlIFNNTVV2MyBkcml2ZXIgb25seQpjb250YWlucyBjb2RlIHRvIHBvcHVsYXRlIHRhYmxl cyBhbmQgc2VuZCBjb21tYW5kcyAod2hpY2ggaXMgc3RpbGwgdG9vCm11Y2ggZm9yIG15IHRhc3Rl IGJ1dCBzZWVtcyB1bmF2b2lkYWJsZSB0byBpc29sYXRlIGhvc3QgRE1BKS4gTGVmdCBpbiB0aGUK aG9zdCBhcmUgdGhpbmdzIGxpa2UgQUNQSS9EVCBwYXJzZXIsIGludGVycnVwdHMsIHBvc3NpYmx5 IHRoZSBldmVudCBxdWV1ZQood2hpY2ggaW5mb3JtcyBvZiBETUEgZXJyb3JzKSwgZXh0cmEgZmVh dHVyZXMgYW5kIGNvbXBsZXggb3B0aW1pemF0aW9ucy4KVGhlIGhvc3QgYWxzbyBoYXMgdG8gaW1w bGVtZW50IElPTU1VIG9wcyB0byBsaWFpc2UgYmV0d2VlbiB0aGUgRE1BIEFQSSBhbmQKdGhlIGh5 cGVydmlzb3IuCgo+IGFueXdheSBqdXN0IHdhbnQgdG8gY2hlY2sgeW91ciB0aG91Z2h0cyBvbiB0 aGUgcG9zc2liaWxpdHkuCj4gCj4gYnR3IHNvbWUgb2YgbXkgY29sbGVhZ3VlcyBhcmUgcG9ydGlu ZyBwS1ZNIHRvIEludGVsIHBsYXRmb3JtLiBJIGJlbGlldmUKPiB0aGV5IHdpbGwgcG9zdCB0aGVp ciB3b3JrIHNob3J0bHkgYW5kIHRoZXJlIG1pZ2h0IHJlcXVpcmUgc29tZSBjb21tb24KPiBmcmFt ZXdvcmsgaW4gcEtWTSBoeXBlcnZpc29yIGxpa2UgaW9tbXUgZG9tYWluLCBoeXBlcmNhbGxzLCBl dGMuIGxpa2UgCj4gd2hhdCB3ZSBoYXZlIGluIHRoZSBob3N0IGlvbW11IHN1YnN5c3RlbS4gQ0Mg dGhlbSBpbiBjYXNlIG9mIGFueSBlYXJseQo+IHRob3VnaHQgdGhleSB3YW50IHRvIHRocm93IGlu LiDwn5iKCgpDb29sISBUaGUgaHlwZXJ2aXNvciBwYXJ0IGNvbnRhaW5zIGlvbW11L2lvbW11LmMg d2hpY2ggZGVhbHMgd2l0aApoeXBlcmNhbGxzIGFuZCBkb21haW5zIGFuZCBkb2Vzbid0IGNvbnRh aW4gYW55dGhpbmcgc3BlY2lmaWMgdG8gQXJtIChpdCdzCm9ubHkgaW4gYXJjaC9hcm02NCBiZWNh dXNlIHRoYXQncyB3aGVyZSBwa3ZtIGN1cnJlbnRseSBzaXRzKS4gSXQgZG9lcyByZWx5Cm9uIGlv LXBndGFibGUgYXQgdGhlIG1vbWVudCB3aGljaCBpcyBub3QgdXNlZCBieSBWVC1kIGJ1dCB0aGF0 IGNhbiBiZQphYnN0cmFjdGVkIGFzIHdlbGwuIEl0J3MgcG9zc2libGUgaG93ZXZlciB0aGF0IG9u IEludGVsIGFuIGVudGlyZWx5CmRpZmZlcmVudCBzZXQgb2YgaHlwZXJjYWxscyB3aWxsIGJlIG5l ZWRlZCwgaWYgYSBzaW1wbGVyIHNvbHV0aW9uIHN1Y2ggYXMKc2hhcmluZyBwYWdlIHRhYmxlcyBm aXRzIGJldHRlciBiZWNhdXNlIFZULWQgaW1wbGVtZW50YXRpb25zIGFyZSBtb3JlCmhvbW9nZW5l b3VzLgoKVGhhbmtzLApKZWFuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVs QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==