From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v2] x86emul: don't read mask register on AVX512F-incapable platforms Date: Mon, 01 Apr 2019 09:02:17 -0600 Message-ID: <5CA227F90200007800223AF9@prv1-mh.provo.novell.com> References: <5C9CFE7102000078002229A1@prv1-mh.provo.novell.com> <5C9DCC4A0200007800222AEA@prv1-mh.provo.novell.com> <0eaf98eb-3e30-0136-1c75-1deb7c8a3bbc@citrix.com> <5C9DE7060200007800222BA1@prv1-mh.provo.novell.com> <5C9DF9CA0200007800222C2E@prv1-mh.provo.novell.com> <4a2b8058-1f17-cdb0-005e-a6be2af61120@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hAyS9-0000Vb-Vv for xen-devel@lists.xenproject.org; Mon, 01 Apr 2019 15:02:26 +0000 In-Reply-To: <4a2b8058-1f17-cdb0-005e-a6be2af61120@citrix.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Andrew Cooper Cc: George Dunlap , xen-devel , Wei Liu , Juergen Gross , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDAxLjA0LjE5IGF0IDE2OjE0LCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3Jv dGU6Cj4gT24gMjkvMDMvMjAxOSAxMDo1NiwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+IE9uIDI5 LjAzLjE5IGF0IDExOjAyLCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3JvdGU6Cj4+PiBP biAyOS8wMy8yMDE5IDA5OjM2LCBKYW4gQmV1bGljaCB3cm90ZToKPj4+PiBJJ2QgbGlrZSB0byBw dXQgdXAgdGhlIG90aGVyIG9wdGlvbiB0aGVuOiBSYXRoZXIgdGhhbiB1c2luZwo+Pj4+IF9nZXRf ZnB1KCkgKGFuZCBpbiBwYXJ0aWN1bGFyIHRoZSByZWFkX3hjcigpIGFuZCByZWFkX2NyKCkgaG9v a3MpCj4+Pj4gd2UgY291bGQgcmVhZCB0aGUgcmVhbCBYQ1IwIGhlcmUuIEFmdGVyIGFsbCB3ZSBp c3N1ZSB0aGUgS01PViBub3QKPj4+PiBiZWNhdXNlIHRoZSBndWVzdCBoYXMgc3BlY2lmaWVkIGl0 LCBidXQgYmVjYXVzZSB3ZSBuZWVkIHRoZSB2YWx1ZQo+Pj4+IG9mIHRoZSByZWdpc3RlciBmb3Ig Y29ycmVjdCBmYXVsdCBzdXBwcmVzc2lvbiBlbXVsYXRpb24uCj4+PiBUcnVlLCBhbmQgdGhhdCB3 b3VsZCBiZSByYXRoZXIgc21hbGxlciBhbmQgbGVzcyBpbnZhc2l2ZSB0aGFuCj4+PiBkZWxpYmVy YXRlbHkgc3F1YXNoaW5nIHRoZSBvdGhlciBzaWRlIGVmZmVjdHMgb2YgZ2V0X2ZwdSgpCj4+IEht bSwgSSd2ZSB0cmllZCB0byBkbyB0aGlzLCBidXQgdGhpcyBpcyBtb3JlIGNvbXBsaWNhdGVkOiBD UjAuVFMKPj4gbWF5IGJlIHNldCwgaW4gd2hpY2ggY2FzZSB3ZSBuZWVkIHRvIGludm9rZSB0aGUg Z2V0X2ZwdSgpIGhvb2sKPj4gdG8gZ2V0IGl0IGNsZWFyZWQgd2l0aCBhcHByb3ByaWF0ZSBib29r a2VlcGluZy4gSSBkb24ndCB0aGluayBpdCdzCj4+IHdvcnRoIGZ1cnRoZXIgY29tcGxpY2F0aW5n IHRoZSBjb2RlIGJ5IGludm9raW5nIHRoZSBob29rIF9vbmx5Xwo+PiBpbiB0aGF0IGNhc2UuIFNv IEkgZ3Vlc3Mgd2UgYmV0dGVyIHN0aWNrIHRvIHYyLgo+IAo+IE9oIG9rLiAgVGhhdCBkb2VzIGNv bXBsaWNhdGVkIHRoaW5ncy4gIExldHMganVzdCB1c2UgdGhlIGV4aXN0aW5nCj4gaW5mcmFzdHJ1 Y3R1cmUsIGV2ZW4gaWYgaXQgaXMgcmF0aGVyIGhlYXZ5d2VpZ2h0Lgo+IAo+PiBXaGljaCBtYWtl cyBtZSBjb21lIGJhY2sgdG8geW91ciByZXF1ZXN0IHRvIGRyb3AgdGhlCj4+IGNwdV9oYXNfYXZ4 NTEyZiBwYXJ0IG9mIHRoZSBjb25kaXRpb246IFJpZ2h0IG5vdyB0aGUgZnV6emVyCj4+IHVzZXMg ZW11bF90ZXN0X3JlYWRfeGNyKCkgaW5zdGVhZCBvZiBhY3R1YWxseSBmdXp6aW5nIHRoZQo+PiB2 YWx1ZS4gT25jZSBpdCBkb2VzLCB3b3VsZCB3ZSBleHBlY3QgaXQgdG8gbmV2ZXIgc2V0IGFueSBi aXRzCj4+IGluIHRoZSByZXR1cm5lZCB2YWx1ZSB0aGF0IGFyZW4ndCBzZXQgaW4gaGFyZHdhcmUs IGJ1dCBjb3VsZAo+PiBpbiBwcmluY2lwbGUgYmUgc2V0IGJhc2VkIG9uIChyZWFsKSBDUFVJRCBv dXRwdXQ/IEluIHRoYXQgY2FzZQo+PiBJIGNvdWxkIGFncmVlIHRvIHJlbW92ZSB0aGUgZXh0cmEg Y29uZGl0aW9uLgo+IAo+IEkgZG9uJ3Qgc2VlIGhvdyB3ZSBjb3VsZCBldmVyIGVtdWxhdGUgd2l0 aCBhICh2KXhjcjAgZGlmZmVyZW50IHRvIGEKPiBsZWdpdGltYXRlIHZhbHVlIGluIGhhcmR3YXJl LCBhcyB0aGUgc3R1YnMgd291bGQgI1VELgo+IAo+IEkgYWxzbyBkb24ndCBzZWUgaG93IHRoZSB1 c2Vyc3BhY2UgdG9vbHMgY291bGQgZXZlciB0ZXN0IHdpdGggYSB2YWx1ZQo+IG90aGVyIHRoYW4g d2hhdCBpdCBjYW4gc2VlIGluIHhnZXRidiwgYmVjYXVzZSBvbmx5IHRoZSBrZXJuZWwgZ2V0cyB0 bwo+IGNob29zZSAleGNyMC4gIEV2ZW4gd2l0aCBmYWtpbmcgdXAgYSBzbWFsbGVyIHhjcjAsIHlv dSdkIGVuZCB1cCB3aXRoCj4gaW5zdHJ1Y3Rpb25zIHdoaWNoIHNob3VsZCBmYXVsdCBidXQgZG9u J3QuCgpXb3VsZCB5b3UgbWluZCBsb29raW5nIGF0IHdoYXQgd2UgZG8gZm9yIENSMCBhbmQgQ1I0 IHJpZ2h0IG5vdwppbiB0aGUgZnV6emVyIHN0dWJzPyBJIGRvbid0IHNlZSB3aHksIGluIHByaW5j aXBsZSwgdGhlc2UgYW5kIFhDUjAKd291bGQgbmVlZCBoYW5kbGluZyBkaWZmZXJlbnRseTogRWl0 aGVyIHdlIHN1cHBseSBzYW5lIHN0YXRlCnJhdGhlciB0aGFuIGZ1bGx5IGZ1enplZCBvbmUsIG9y IHdlIGRvbid0LiBCdXQgcHJlZmVyYWJseSB1bmlmb3JtbHkuCllldCByaWdodCBub3cgWENSMCBn ZXRzIHNhbmUgdmFsdWVzLCB3aGlsZSBDUjAgYW5kIENSNCBnZXQKZnV6emVkIGluIGFyY2hpdGVj dHVyYWxseSBpbXBvc3NpYmxlIHdheXMuCgpBcyB0byBmYXVsdGluZzogVGhlIHNhbWUgd291bGQg YmUgdHJ1ZSBpZiB0aGUgZW11bGF0b3IgdXNlZCBlLmcuCnRoZSBmc2dzYmFzZSBpbnNucyBpdHNl bGYsIGJ1dCBiYXNlZCBpdHMgZGVjaXNpb24gb24gdGhlIHByZXNlbnRlZApDUjQgdmFsdWU6IEl0 IG1pZ2h0IGZhdWx0IHdoZW4gaXQgc2hvdWxkbid0LCBvciBpdCBtaWdodCBub3QgZmF1bHQKd2hl biBpdCBzaG91bGQsIGRlcGVuZGluZyBvbiBob3N0IENSNC4KCkphbgoKCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0 Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qu b3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs