From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCHv3 1/3] x86/fpu: improve check for XSAVE* not writing FIP/FDP fields Date: Thu, 25 Feb 2016 13:16:24 +0000 Message-ID: <56CEFEA8.6010600@citrix.com> References: <1456397884-661-1-git-send-email-david.vrabel@citrix.com> <1456397884-661-2-git-send-email-david.vrabel@citrix.com> <56CEF45A02000078000D61C4@prv-mh.provo.novell.com> <56CEF130.4090302@citrix.com> <56CF015802000078000D6284@prv-mh.provo.novell.com> <56CEF854.9080604@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.84) (envelope-from ) id 1aYvmX-0001mE-Fg for xen-devel@lists.xenproject.org; Thu, 25 Feb 2016 13:16:37 +0000 In-Reply-To: <56CEF854.9080604@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: David Vrabel , Jan Beulich Cc: xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org T24gMjUvMDIvMTYgMTI6NDksIERhdmlkIFZyYWJlbCB3cm90ZToKPiBPbiAyNS8wMi8xNiAxMjoy NywgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+IE9uIDI1LjAyLjE2IGF0IDEzOjE4LCA8ZGF2aWQu dnJhYmVsQGNpdHJpeC5jb20+IHdyb3RlOgo+Pj4gT24gMjUvMDIvMTYgMTE6MzIsIEphbiBCZXVs aWNoIHdyb3RlOgo+Pj4+Pj4+IE9uIDI1LjAyLjE2IGF0IDExOjU4LCA8ZGF2aWQudnJhYmVsQGNp dHJpeC5jb20+IHdyb3RlOgo+Pj4+PiBUaGUgcG9pc29uIHZhbHVlIGlzIGZpeGVkIGFuZCB0aHVz IGtub3dhYmxlIGJ5IGEgZ3Vlc3QgKG9yIGd1ZXN0Cj4+Pj4+IHVzZXJzcGFjZSkuICBUaGlzIGNv dWxkIGFsbG93IHRoZSBndWVzdCB0byBjYXVzZSBYZW4gdG8gaW5jb3JyZWN0bHkKPj4+Pj4gZGV0 ZWN0IHRoYXQgdGhlIGZpZWxkIGhhcyBub3QgYmVlbiB3cml0dGVuLiAgQnV0OiBhKSB0aGlzIHJl cXVpcmVzIHRoZQo+Pj4+PiBGSVAgcmVnaXN0ZXIgdG8gYmUgYSBmdWxsIDY0IGJpdHMgaW50ZXJu YWxseSB3aGljaCBpcyBub3QgdGhlIGNhc2UgZm9yCj4+Pj4+IGFsbCBjdXJyZW50IEFNRCBhbmQg SW50ZWwgQ1BVczsgYW5kIGIpIHRoaXMgb25seSBhbGxvd3MgdGhlIGd1ZXN0IChvcgo+Pj4+PiBh IGd1ZXN0IHVzZXJzcGFjZSBwcm9jZXNzKSB0byBjb3JydXB0IGl0cyBvd24gc3RhdGUgKGkuZS4s IGl0IGNhbm5vdAo+Pj4+PiBhZmZlY3QgdGhlIHN0YXRlIG9mIGFub3RoZXIgZ3Vlc3Qgb3IgYW5v dGhlciB1c2VyIHNwYWNlIHByb2Nlc3MpLgo+Pj4+Pgo+Pj4+PiBUaGlzIHJlc3VsdHMgaW4gc21h bGxlciBjb2RlIHdpdGggZmV3ZXIgYnJhbmNoZXMgYW5kIGlzIG1vcmUKPj4+Pj4gdW5kZXJzdGFu ZGFibGUuCj4+Pj4+Cj4+Pj4+IFNpZ25lZC1vZmYtYnk6IERhdmlkIFZyYWJlbCA8ZGF2aWQudnJh YmVsQGNpdHJpeC5jb20+Cj4+Pj4gUGVuZGluZyBjb25maXJtYXRpb24gb24gRklQIHJlZ2lzdGVy IHdpZHRoIGJ5IGF0IGxlYXN0IEludGVsLAo+Pj4+IFJldmlld2VkLWJ5OiBKYW4gQmV1bGljaCA8 amJldWxpY2hAc3VzZS5jb20+Cj4+PiBGb3IgSW50ZWwgQ1BVcywgRklQIGlzIDQ4LWJpdHMgaW50 ZXJuYWxseSBhbmQgbmV3ZXIgQ1BVcyBoYXZlIEZQQ1NEUyBhbmQKPj4+IHRodXMgd2Ugd2lsbCBh bHdheXMgdXNlIHRoZSA2NC1iaXQgc2F2ZS4KPj4gSGFzIEludGVsIHRvbGQgeW91IChidXQgbm90 IHVzKSwgb3IgaXMgdGhpcyBqdXN0IGJhc2VkIG9uIGV4cGVyaW1lbnRzCj4+IHlvdSBkaWQsIG9y IHJlLXN0YXRpbmcgd2hhdCBJJ3ZlIGZvdW5kIGZyb20gZXhwZXJpbWVudGluZz8KPiBJJ20ganVz dCByZXN0YXRpbmcgdGhpbmdzIGFscmVhZHkgbWVudGlvbmVkIGluIHRoZSB2YXJpb3VzIHRocmVh ZHMuCj4KPj4+IEZvciBBTUQsIHdoaWNoIG9ubHkgd3JpdGVzIEZJUCBhbmQgRkRQIGlmIGFuIGV4 Y2VwdGlvbiBpcyBwZW5kaW5nLCBpZiBhCj4+PiBndWVzdCB3YW50ZWQgdG8gdXNlIEZJUCB0byBz dG9yZSBhbiBhcmJpdHJhcnkgNjQtYml0IHZhbHVlIChpbiBzb21lCj4+PiBmdXR1cmUgQ1BVKSBp dCB3b3VsZCBoYXZlIHRvIG1hbnVhbGx5IHNldCBhbiBleGNlcHRpb24gYXMgcGVuZGluZy4gIEl0 cwo+Pj4gc2VlbXMgaW1wbGF1c2libGUgdGhhdCBhbnkgc29mdHdhcmUgd291bGQgYWN0dWFsbHkg ZG8gdGhpcy4KPj4gQWxsIG9mIHRoZXNlIHVzZXMgb2YgRklQL0ZEUCBhcmUgaW1wbGF1c2libGUs IHlldCB3ZSdyZSBhaW1pbmcgYXQKPj4gY29ycmVjdGx5IG1pbWlja2luZyBoYXJkd2FyZSBiZWhh dmlvciwgYWxsb3dpbmcgZm9sa3MgdG8gZXZlbiBkbwo+PiBpbXBsYXVzaWJsZSB0aGluZ3MgdGhh dCB3b3JrIG9uIGJhcmUgaGFyZHdhcmUuCj4gSSB0aGluazoKPgo+IGEpIE9uIGhhcmR3YXJlIHdp dGggRlBDU0RTLCB3ZSBhbHdheXMgZG8gYSA2NC1iaXQgc2F2ZS9yZXN0b3JlIGFuZCB0aHVzCj4g YWx3YXlzIG1hdGNoIHRoZSBoYXJkd2FyZSBiZWhhdmlvdXIuCj4KPiBiKSBPbiBoYXJkd2FyZSB3 aXRob3V0IEZQQ1NEUyB3ZSAvY2Fubm90LyBtYXRjaCB0aGUgaGFyZHdhcmUgYmVoYXZpb3VyLgo+ ICBXZSBtdXN0IGhhdmUgc29tZSBzb3J0IG9mIGhldXJpc3RpYyB0byBjb3ZlciB0aGUgY29tbW9u IHVzZSBjYXNlcy4gIFRoZQo+IGV4aXN0aW5nIGhldXJpc3RpYyBpcyAvYWxyZWFkeS8gaW5hZGVx dWF0ZSBzaW5jZSBEcml2ZXIgVmVyaWZpZXIKPiBjb25mdXNlcyBpdC4gU28gSU1PLCBtYWtpbmcg dGhlIGhldXJpc3RpYyBhIHRlZW55LCB0aW55IGJpdCBsZXNzIHByZWNpc2UKPiBkb2Vzbid0IG1h dHRlci4KPgo+IGMpIEZvciB0aGUgdW5jb21tb24gdXNlIGNhc2VzLCB0aGVyZSBpcyBhbHdheXMg SFZNX1BBUkFNX1g4N19GSVBfV0lEVEgKPiB0byBmb3JjZSBhIHBhcnRpY3VsYXIgYmVoYXZpb3Vy LgoKTm8gT1MgaXMgcGxhdXNpYmx5IGdvaW5nIHRvIGhpZGUgbm9uLUlQIGluZm9ybWF0aW9uIGlu IEZJUC4KCklmIHNvbWUgdGhlb3JldGljYWwgT1MgZG9lcyBkbyBzb21ldGhpbmcgbGlrZSB0aGF0 LCB0aGVyZSBpcyBhbHdheXMgdGhlCm92ZXJyaWRlIGF2YWlsYWJsZS4KCn5BbmRyZXcKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWls aW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVu LWRldmVsCg==