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(was: Re: [PATCH v10 0/9] KVM: mm: fd-based approach for supporting KVM) From: Ackerley Tng To: Sean Christopherson Cc: david@redhat.com, chao.p.peng@linux.intel.com, pbonzini@redhat.com, vkuznets@redhat.com, jmattson@google.com, joro@8bytes.org, mail@maciej.szmigiero.name, vbabka@suse.cz, vannapurve@google.com, yu.c.zhang@linux.intel.com, kirill.shutemov@linux.intel.com, dhildenb@redhat.com, qperret@google.com, tabba@google.com, michael.roth@amd.com, wei.w.wang@intel.com, rppt@kernel.org, liam.merwick@oracle.com, isaku.yamahata@gmail.com, jarkko@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, hughd@google.com, brauner@kernel.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Content-Transfer-Encoding: base64 X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,USER_IN_DEF_DKIM_WL autolearn=unavailable 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 DQpIaSBTZWFuLA0KDQpUaGFua3MgZm9yIGltcGxlbWVudGluZyB0aGlzIFBPQyENCg0KSeKAmXZl IHN0YXJ0ZWQgcG9ydGluZyB0aGUgc2VsZnRlc3RzIChib3RoIENoYW/igJlzIGFuZCB0aG9zZSBJ IGFkZGVkIFsxXSkuDQoNCmd1ZXN0IG1lbSBzZWVtcyB0byBjb3ZlciB0aGUgdXNlIGNhc2VzIHRo YXQgaGF2ZSBiZWVuIGRpc2N1c3NlZCBhbmQNCnByb3Bvc2VkIHNvIGZhciwgYnV0IEkgc3RpbGwg bmVlZCB0byBmaWd1cmUgb3V0IGhvdyBnbWVtIGNhbiB3b3JrIHdpdGgNCg0KKyBodWdldGxiZnMN Cisgc3BlY2lmaWNhdGlvbiBvZi9zdG9yaW5nIG1lbW9yeSBwb2xpY3kgKGZvciBOVU1BIG5vZGUg YmluZGluZ3MpDQorIG1lbW9yeSBhY2NvdW50aW5nIC0gd2UgbWF5IG5lZWQgdG8gYWNjb3VudCBm b3IgbWVtb3J5IHVzZWQgc2VwYXJhdGVseSwNCiAgIHNvIHRoYXQgZ3Vlc3QgbWVtIHNob3dzIHVw IHNlcGFyYXRlbHkgb24gL3Byb2MvbWVtaW5mbyBhbmQgc2ltaWxhcg0KICAgcGxhY2VzLg0KDQpP bmUgaXNzdWUgSeKAmXZlIGZvdW5kIHNvIGZhciBpcyB0aGF0IHRoZSBwb2ludGVyIHRvIGt2bSAo Z21lbS0+a3ZtKSBpcw0Kbm90IGNsZWFuZWQgdXAsIGFuZCBoZW5jZSBpdCBpcyBwb3NzaWJsZSB0 byBjcmFzaCB0aGUgaG9zdCBrZXJuZWwgaW4gdGhlDQpmb2xsb3dpbmcgd2F5DQoNCjEuIENyZWF0 ZSBhIEtWTSBWTQ0KMi4gQ3JlYXRlIGEgZ3Vlc3QgbWVtIGZkIG9uIHRoYXQgVk0NCjMuIENyZWF0 ZSBhIG1lbXNsb3Qgd2l0aCB0aGUgZ3Vlc3QgbWVtIGZkIChoZW5jZSBiaW5kaW5nIHRoZSBmZCB0 byB0aGUNCiAgICBWTSkNCjQuIENsb3NlL2Rlc3Ryb3kgdGhlIEtWTSBWTQ0KNS4gQ2FsbCBmYWxs b2NhdGUoUFVOQ0hfSE9MRSkgb24gdGhlIGd1ZXN0IG1lbSBmZCwgd2hpY2ggdXNlcyBnbWVtLT5r dm0NCiAgICB3aGVuIGl0IHRyaWVzIHRvIGRvIGludmFsaWRhdGlvbi4NCg0KSSB0aGVuIHRyaWVk IHRvIGNsZWFuIHVwIHRoZSBnbWVtLT5rdm0gcG9pbnRlciBkdXJpbmcgdW5iaW5kaW5nIHdoZW4g dGhlDQpLVk0gVk0gaXMgZGVzdHJveWVkLg0KDQpUaGF0IHdvcmtzLCBidXQgdGhlbiBJIHJlYWxp emVkIHRoZXJl4oCZcyBhIHNpbXBsZXIgd2F5IHRvIHVzZSB0aGUgcG9pbnRlcg0KYWZ0ZXIgZnJl ZWluZzoNCg0KMS4gQ3JlYXRlIGEgS1ZNIFZNDQoyLiBDcmVhdGUgYSBndWVzdCBtZW0gZmQgb24g dGhhdCBWTQ0KMy4gQ2xvc2UvZGVzdHJveSB0aGUgS1ZNIFZNDQo0LiBDYWxsIGZhbGxvY2F0ZShQ VU5DSF9IT0xFKSBvbiB0aGUgZ3Vlc3QgbWVtIGZkLCB3aGljaCB1c2VzIGdtZW0tPmt2bQ0KICAg IHdoZW4gaXQgdHJpZXMgdG8gZG8gaW52YWxpZGF0aW9uLg0KDQpQZXJoYXBzIGJpbmRpbmcgc2hv dWxkIG1lYW4gc2V0dGluZyB0aGUgZ21lbS0+a3ZtIHBvaW50ZXIgaW4gYWRkaXRpb24gdG8NCmdt ZW0tPmJpbmRpbmdzLiBUaGlzIG1ha2VzIGJpbmRpbmcgYW5kIHVuYmluZGluZyBzeW1tZXRyaWMg YW5kIGF2b2lkcw0KdGhlIHVzZS1hZnRlci1mcmVlcyBkZXNjcmliZWQgYWJvdmUuDQoNClRoaXMg YWxzbyBtZWFucyB0aGF0IGNyZWF0aW5nIGEgZ3Vlc3QgbWVtIGZkIGlzIG5vIGxvbmdlciBkZXBl bmRlbnQgb24NCnRoZSBWTS4gUGVyaGFwcyB3ZSBjYW4gbWFrZSBjcmVhdGluZyBhIGdtZW0gZmQg YSBzeXN0ZW0gaW9jdGwgKGxpa2UNCktWTV9HRVRfQVBJX1ZFUlNJT04gYW5kIEtWTV9DUkVBVEVf Vk0pIGluc3RlYWQgb2YgYSB2bSBpb2N0bD8NCg0KWzFdICANCmh0dHBzOi8vbG9yZS5rZXJuZWwu b3JnL2FsbC9jb3Zlci4xNjc4OTI2MTY0LmdpdC5hY2tlcmxleXRuZ0Bnb29nbGUuY29tL1QvDQoN CkFja2VybGV5DQo=