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[54.240.197.234]) by smtp.gmail.com with ESMTPSA id ov22sm199884ejb.70.2020.03.19.12.07.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Mar 2020 12:07:05 -0700 (PDT) To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <20200319154716.34556-1-roger.pau@citrix.com> <20200319154716.34556-2-roger.pau@citrix.com> <83b8dc44-6ecf-9bdf-957b-3c502e4df926@xen.org> <20200319173825.GQ24458@Air-de-Roger.citrite.net> <3d242660-7c28-5465-5da8-d126d2d347b4@xen.org> <20200319184305.GR24458@Air-de-Roger.citrite.net> From: Julien Grall Message-ID: <910d5530-893d-9401-46f6-4da22a400ce4@xen.org> Date: Thu, 19 Mar 2020 19:07:03 +0000 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200319184305.GR24458@Air-de-Roger.citrite.net> Content-Language: en-GB Subject: Re: [Xen-devel] [PATCH v7 1/3] x86/tlb: introduce a flush HVM ASIDs flag X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Stefano Stabellini , Wei Liu , Andrew Cooper , Ian Jackson , George Dunlap , Tim Deegan , Jan Beulich , xen-devel@lists.xenproject.org Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" SGksCgpPbiAxOS8wMy8yMDIwIDE4OjQzLCBSb2dlciBQYXUgTW9ubsOpIHdyb3RlOgo+IE9uIFRo dSwgTWFyIDE5LCAyMDIwIGF0IDA2OjA3OjQ0UE0gKzAwMDAsIEp1bGllbiBHcmFsbCB3cm90ZToK Pj4KPj4KPj4gT24gMTkvMDMvMjAyMCAxNzozOCwgUm9nZXIgUGF1IE1vbm7DqSB3cm90ZToKPj4+ IE9uIFRodSwgTWFyIDE5LCAyMDIwIGF0IDA0OjIxOjIzUE0gKzAwMDAsIEp1bGllbiBHcmFsbCB3 cm90ZToKPj4+ICAgPj4gV2h5IGNhbid0IHlvdSBrZWVwIGZsdXNoX3RsYl9tYXNrKCkgaGVyZT8K Pj4+Cj4+PiBCZWNhdXNlIGZpbHRlcmVkX2ZsdXNoX3RsYl9tYXNrIGlzIHVzZWQgaW4gcG9wdWxh dGVfcGh5c21hcCwgYW5kCj4+PiBjaGFuZ2VzIHRvIHRoZSBwaHltYXAgcmVxdWlyZSBhbiBBU0lE IGZsdXNoIG9uIEFNRCBoYXJkd2FyZS4KPj4KPj4gSSBhbSBhZnJhaWQgdGhpcyBkb2VzIG5vdCB5 ZXQgZXhwbGFpbiBtZSB3aHkgZmx1c2hfdGxiX21hc2soKSBjb3VsZCBub3QgYmUKPj4gdXBkYXRl ZCBzbyBpdCBmbHVzaCB0aGUgQVNJRCBvbiBBTUQgaGFyZHdhcmUuCj4gCj4gQ3VycmVudCBiZWhh dmlvciBwcmV2aW91cyB0byB0aGlzIHBhdGNoIGlzIHRvIGZsdXNoIHRoZSBBU0lEcyBvbgo+IGV2 ZXJ5IFRMQiBmbHVzaC4KPiAKPiBmbHVzaF90bGJfbWFzayBpcyB0b28gd2lkZWx5IHVzZWQgb24g eDg2IGluIHBsYWNlcyB3aGVyZSB0aGVyZSdzIG5vCj4gbmVlZCB0byBmbHVzaCB0aGUgQVNJRHMu IFRoaXMgcHJldmVudHMgdXNpbmcgYXNzaXN0ZWQgZmx1c2hlcyAoYnkgTDApCj4gd2hlbiBydW5u aW5nIG5lc3RlZCwgc2luY2UgdGhvc2UgYXNzaXN0ZWQgZmx1c2hlcyBwZXJmb3JtZWQgYnkgTDAK PiBkb24ndCBmbHVzaCB0aGUgTDIgZ3Vlc3RzIFRMQnMuCj4gCj4gSSBjb3VsZCBrZWVwIGN1cnJl bnQgYmVoYXZpb3IgYW5kIGxlYXZlIGZsdXNoX3RsYl9tYXNrIGFsc28gZmx1c2hpbmcgdGhlCj4g QVNJRHMsIGJ1dCB0aGF0IHNlZW1zIHdyb25nIGFzIHRoZSBmdW5jdGlvbiBkb2Vzbid0IGhhdmUg YW55dGhpbmcgaW4KPiBpdCdzIG5hbWUgdGhhdCBzdWdnZXN0cyBpdCBhbHNvIGZsdXNoZXMgdGhl IGluLWd1ZXN0IFRMQnMgZm9yIEhWTS4KCkkgYWdyZWUgdGhlIG5hbWUgaXMgY29uZnVzaW5nLCBJ IGhhZCB0byBsb29rIGF0IHRoZSBpbXBsZW1lbnRhdGlvbiB0byAKdW5kZXJzdGFuZCB3aGF0IGl0 IGRvZXMuCgpIb3cgYWJvdXQgcmVuYW1pbmcgKG9yIGludHJvZHVjaW5nKSB0aGUgZnVuY3Rpb24g dG8gCmZsdXNoX3RsYl9hbGxfZ3Vlc3RzX21hc2soKSBvciBmbHVzaF90bGJfYWxsX2d1ZXN0c19j cHVtYXNrKCkpID8KCj4gCj4gSSB3b3VsZCByYXRoZXIgcHJlZmVyIHRoZSBkZWZhdWx0IHRvIGJl IHRvIG5vdCBmbHVzaCB0aGUKPiBBU0lEcywgc28gdGhhdCB1c2VycyBuZWVkIHRvIHNwZWNpZnkg c28gYnkgcGFzc2luZyB0aGUgZmxhZyB0bwo+IGZsdXNrX21hc2suClRoYXQncyB4ODYgY2hvaWNl LiBGb3IgY29tbW9uLCBJIHdvdWxkIHJhdGhlciBubyBpbnRyb2R1Y2UgdGhvc2UgZmxhZ3MgCnVu dGlsIHdlIGhhdmUgYW5vdGhlciBhcmNoIHRoYXQgbWFrZSB1c2Ugb2YgaXQuCgo+IAo+PiBUaGlz IHdvdWxkIGFjdHVhbGx5IG1hdGNoIHRoZSBiZWhhdmlvciBvZiBmbHVzaF90bGJfbWFzaygpIG9u IEFybSB3aGVyZSBhbGwKPj4gdGhlIGd1ZXN0IFRMQnMgd291bGQgYmUgcmVtb3ZlZC4KPiAKPiBU aGF0J3MgaG93IGl0IHVzZWQgdG8gYmUgcHJldmlvdXMgdG8gdGhpcyBwYXRjaCwgYW5kIHRoZSB3 aG9sZSBwb2ludAo+IGlzIHRvIHNwbGl0IHRoZSBBU0lEIGZsdXNoZXMgaW50byBhIHNlcGFyYXRl IGZsYWcsIHNvIGl0J3Mgbm90IGRvbmUKPiBmb3IgZXZlcnkgVExCIGZsdXNoLgoKV2VsbCwgdGxi X2ZsdXNoX21hc2soKSBpcyBvbmx5IGltcGxlbWVudGVkIGZvciB0aGUgYmVuZWZpdCBvZiBjb21t b24gCmNvZGUuIEl0IGhhcyBubyBvdGhlciB1c2VycyBvbiBBcm0uCgpJdCBmZWVscyB0byBtZSB0 aGF0IHdlIHdhbnQgYW4gaGVscGVyIHRoYXQgd2lsbCBudWtlIGFsbCB0aGUgZ3Vlc3QgVExCcyAK b24gYSBnaXZlbiBzZXQgb2YgQ1BVcyAoc2VlIGFib3ZlIGZvciBzb21lIG5hbWUgc3VnZ2VzdGlv bikuCgpPbiB4ODYsIHlvdSBjb3VsZCBpbXBsZW1lbnQgaXQgdXNpbmcgZmx1c2hfbWFzaygpLiBP biBBcm0sIHRoaXMgY291bGQgYmUgCmEgcmVuYW1lIG9mIHRoZSBleGlzdGluZyBmdW5jdGlvbiBm bHVzaF90bGJfbWFzaygpLgoKQ2hlZXJzLAoKLS0gCkp1bGllbiBHcmFsbAoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlz dApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0 Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==