From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [PATCH v2] drivers/virt: vmgenid: add vm generation id driver References: <3E05451B-A9CD-4719-99D0-72750A304044@amazon.com> From: "Catangiu, Adrian Costin" Message-ID: Date: Fri, 27 Nov 2020 21:04:01 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: base64 List-ID: To: Jann Horn Cc: "Graf (AWS), Alexander" , Christian Borntraeger , "Jason A. Donenfeld" , Willy Tarreau , "MacCarthaigh, Colm" , Andy Lutomirski , "Theodore Y. Ts'o" , Eric Biggers , "open list:DOCUMENTATION" , kernel list , "Woodhouse, David" , "bonzini@gnu.org" , "Singh, Balbir" , "Weiss, Radu" , "oridgar@gmail.com" , "ghammer@redhat.com" , Jonathan Corbet , Greg Kroah-Hartman , "Michael S. Tsirkin" , Qemu Developers , KVM list , Michal Hocko , "Rafael J. Wysocki" , Pavel Machek , Linux API , "mpe@ellerman.id.au" , linux-s390 , "areber@redhat.com" , Pavel Emelyanov , Andrey Vagin , Mike Rapoport , Dmitry Safonov <0x7f454c46@gmail.com>, Pavel Tikhomirov , "gil@azul.com" , "asmehra@redhat.com" , "dgunigun@redhat.com" , "vijaysun@ca.ibm.com" U29ycnkgSmFubiBmb3IgbWlzc2luZyB5b3VyIG9yaWdpbmFsIGVtYWlsLgoKT24gMjcvMTEvMjAy MCAyMDoyMiwgSmFubiBIb3JuIHdyb3RlOgo+IENBVVRJT046IFRoaXMgZW1haWwgb3JpZ2luYXRl ZCBmcm9tIG91dHNpZGUgb2YgdGhlIG9yZ2FuaXphdGlvbi4gRG8gbm90IGNsaWNrIGxpbmtzIG9y IG9wZW4gYXR0YWNobWVudHMgdW5sZXNzIHlvdSBjYW4gY29uZmlybSB0aGUgc2VuZGVyIGFuZCBr bm93IHRoZSBjb250ZW50IGlzIHNhZmUuCj4KPgo+Cj4gW3Jlc2VuZCBpbiB0aGUgaG9wZSB0aGF0 IGFtYXpvbiB3aWxsIGFjY2VwdCBteSBtYWlsIHRoaXMgdGltZSBpbnN0ZWFkCj4gb2YgcmVwbHlp bmcgIjU1MCBUb28gbWFueSBpbnZhbGlkIHJlY2lwaWVudHMiIGFnYWluXQo+Cj4gT24gRnJpLCBO b3YgMjAsIDIwMjAgYXQgMTE6MjkgUE0gSmFubiBIb3JuIDxqYW5uaEBnb29nbGUuY29tPiB3cm90 ZToKPj4gT24gTW9uLCBOb3YgMTYsIDIwMjAgYXQgNDozNSBQTSBDYXRhbmdpdSwgQWRyaWFuIENv c3Rpbgo+PiA8YWNhdGFuQGFtYXpvbi5jb20+IHdyb3RlOgo+Pj4gVGhpcyBwYXRjaCBpcyBhIGRy aXZlciB0aGF0IGV4cG9zZXMgYSBtb25vdG9uaWMgaW5jcmVtZW50YWwgVmlydHVhbAo+Pj4gTWFj aGluZSBHZW5lcmF0aW9uIHUzMiBjb3VudGVyIHZpYSBhIGNoYXItZGV2IEZTIGludGVyZmFjZSB0 aGF0Cj4+PiBwcm92aWRlcyBzeW5jIGFuZCBhc3luYyBWbUdlbiBjb3VudGVyIHVwZGF0ZXMgbm90 aWZpY2F0aW9ucy4gSXQgYWxzbwo+Pj4gcHJvdmlkZXMgVm1HZW4gY291bnRlciByZXRyaWV2YWwg YW5kIGNvbmZpcm1hdGlvbiBtZWNoYW5pc21zLgo+Pj4KPj4+IFRoZSBodyBwcm92aWRlZCBVVUlE IGlzIG5vdCBleHBvc2VkIHRvIHVzZXJzcGFjZSwgaXQgaXMgaW50ZXJuYWxseQo+Pj4gdXNlZCBi eSB0aGUgZHJpdmVyIHRvIGtlZXAgYWNjb3VudGluZyBmb3IgdGhlIGV4cG9zZWQgVm1HZW4gY291 bnRlci4KPj4+IFRoZSBjb3VudGVyIHN0YXJ0cyBmcm9tIHplcm8gd2hlbiB0aGUgZHJpdmVyIGlz IGluaXRpYWxpemVkIGFuZAo+Pj4gbW9ub3RvbmljYWxseSBpbmNyZW1lbnRzIGV2ZXJ5IHRpbWUg dGhlIGh3IFVVSUQgY2hhbmdlcyAodGhlIFZNCj4+PiBnZW5lcmF0aW9uIGNoYW5nZXMpLgo+Pj4K Pj4+IE9uIGVhY2ggaHcgVVVJRCBjaGFuZ2UsIHRoZSBuZXcgaHlwZXJ2aXNvci1wcm92aWRlZCBV VUlEIGlzIGFsc28gZmVkCj4+PiB0byB0aGUga2VybmVsIFJORy4KPj4gQXMgZm9yIHYxOgo+Pgo+ PiBJcyB0aGVyZSBhIHJlYXNvbmFibGUgdXNlY2FzZSBmb3IgdGhlICJjb25maXJtYXRpb24iIG1l Y2hhbmlzbT8gSXQKPj4gZG9lc24ndCBzZWVtIHZlcnkgdXNlZnVsIHRvIG1lLgoKSSB0aGluayBp dCBhZGRzIHZhbHVlIGluIGNvbXBsZXggc2NlbmFyaW9zIHdpdGggbXVsdGlwbGUgdXNlcnMgb2Yg dGhlCm1lY2hhbmlzbSwgcG90ZW50aWFsbHkgYXQgdmFyeWluZyBsYXllcnMgb2YgdGhlIHN0YWNr LCBkaWZmZXJlbnQKcHJvY2Vzc2VzIGFuZC9vciBydW50aW1lIGxpYnJhcmllcy4KClRoZSBkcml2 ZXIgb2ZmZXJzIGEgbmF0dXJhbCBwbGFjZSB0byBoYW5kbGUgbWluaW1hbCBvcmNoZXN0cmF0aW9u CnN1cHBvcnQgYW5kIG9mZmVyIHZpc2liaWxpdHkgaW4gc3lzdGVtLXdpZGUgc3RhdHVzLgoKQSBo aWdoLWxldmVsIHNlcnZpY2UgdGhhdCB0cnVzdHMgYWxsIHN5c3RlbSBjb21wb25lbnRzIHRvIHBy b3Blcmx5IHVzZQp0aGUgY29uZmlybWF0aW9uIG1lY2hhbmlzbSBjYW4gYWN0dWFsbHkgYmxvY2sg YW5kIHdhaXQgcGF0aWVudGx5IGZvciB0aGUKc3lzdGVtIHRvIGFkanVzdCB0byB0aGUgbmV3IHdv cmxkLiBFdmVuIGlmIGl0IGRvZXNuJ3QgdHJ1c3QgYWxsCmNvbXBvbmVudHMgaXQgY2FuIHN0aWxs IGRvIGEgYmVzdC1lZmZvcnQsIHRpbWVvdXQgYmxvY2suCgo+Pgo+PiBIb3cgZG8geW91IGVudmlz aW9uIGludGVncmF0aW5nIHRoaXMgd2l0aCBsaWJyYXJpZXMgdGhhdCBoYXZlIHRvIHdvcmsKPj4g aW4gcmVzdHJpY3RpdmUgc2VjY29tcCBzYW5kYm94ZXM/IElmIHRoaXMgd2FzIGluIHRoZSB2RFNP LCB0aGF0IHdvdWxkCj4+IGJlIG11Y2ggZWFzaWVyLgoKU2luY2UgdGhpcyBtZWNoYW5pc20gdGFy Z2V0cyBhbGwgb2YgdXNlcnNwYWNlIHN0YWNrLCB0aGUgdXNlY2FzZSBncmVhdGx5CnZhcnkuIEkg ZG91YnQgd2UgY2FuIGhhdmUgYSBzaW5nbGUgc2lsdmVyIGJ1bGxldCBpbnRlcmZhY2UuCgpGb3Ig ZXhhbXBsZSwgdGhlIG1tYXAgaW50ZXJmYWNlIHRhcmdldHMgdXNlciBzcGFjZSBSTkdzLCB3aGVy ZSBhcyBmYXN0CmFuZCBhcyByYWNlIGZyZWUgYXMgcG9zc2libGUgaXMga2V5LiBCdXQgdGhlcmUg YWxzbyBoaWdoZXIgbGV2ZWwKYXBwbGljYXRpb25zIHRoYXQgZG9uJ3QgbWFuYWdlIHRoZWlyIG93 biBtZW1vcnkgb3IgZG9uJ3QgaGF2ZSBhY2Nlc3MgdG8KbG93LWxldmVsIHByaW1pdGl2ZXMgc28g dGhleSBjYW4ndCB1c2UgdGhlIG1tYXAgb3IgZXZlbiB2RFNPIGludGVyZmFjZXMuClRoYXQncyB3 aGF0IHRoZSByZXN0IG9mIHRoZSBsb2dpYyBpcyB0aGVyZSBmb3IsIHRoZSByZWFkK3BvbGwgaW50 ZXJmYWNlCmFuZCBhbGwgb2YgdGhlIG9yY2hlc3RyYXRpb24gbG9naWMuCgpMaWtlIHlvdSBjb3Jy ZWN0bHkgcG9pbnQgb3V0LCB0aGVyZSBhcmUgYWxzbyBzY2VuYXJpb3MgbGlrZSB0aWdodApzZWNj b21wIGphaWxzIHdoZXJlIGV2ZW4gdGhlIEZTIGludGVyZmFjZXMgaXMgaW5hY2Nlc3NpYmxlLiBG b3IgY2FzZXMKbGlrZSB0aGlzIGFuZCBvdGhlcnMsIEkgYmVsaWV2ZSB3ZSB3aWxsIGhhdmUgdG8g d29yayBpbmNyZW1lbnRhbGx5IHRvCmJ1aWxkIHVwIHRoZSBpbnRlcmZhY2UgZGl2ZXJzaXR5IHRv IGNhdGVyIHRvIGFsbCB0aGUgdXNlciBzY2VuYXJpb3MKZGl2ZXJzaXR5LgoKClRoYW5rcywKCkFk cmlhbi4KCgoKCgpBbWF6b24gRGV2ZWxvcG1lbnQgQ2VudGVyIChSb21hbmlhKSBTLlIuTC4gcmVn aXN0ZXJlZCBvZmZpY2U6IDI3QSBTZi4gTGF6YXIgU3RyZWV0LCBVQkM1LCBmbG9vciAyLCBJYXNp LCBJYXNpIENvdW50eSwgNzAwMDQ1LCBSb21hbmlhLiBSZWdpc3RlcmVkIGluIFJvbWFuaWEuIFJl Z2lzdHJhdGlvbiBudW1iZXIgSjIyLzI2MjEvMjAwNS4K