From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: Re: [PATCHv3 1/3] x86/fpu: improve check for XSAVE* not writing FIP/FDP fields Date: Thu, 25 Feb 2016 12:18:56 +0000 Message-ID: <56CEF130.4090302@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> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xen.org with esmtp (Exim 4.84) (envelope-from ) id 1aYusx-00053w-Lo for xen-devel@lists.xenproject.org; Thu, 25 Feb 2016 12:19:11 +0000 In-Reply-To: <56CEF45A02000078000D61C4@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich Cc: Andrew Cooper , xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org T24gMjUvMDIvMTYgMTE6MzIsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDI1LjAyLjE2IGF0 IDExOjU4LCA8ZGF2aWQudnJhYmVsQGNpdHJpeC5jb20+IHdyb3RlOgo+PiBUaGUgaGFyZHdhcmUg bWF5IG5vdCB3cml0ZSB0aGUgRklQL0ZEUCBmaWVsZHMgd2l0aCBhIFhTQVZFKgo+PiBpbnN0cnVj dGlvbi4gIGUuZy4sIHdpdGggWFNBVkVPUFQvWFNBVkVTIGlmIHRoZSBzdGF0ZSBoYXNuJ3QgY2hh bmdlZAo+PiBvciBvbiBBTUQgQ1BVcyB3aGVuIGEgZmxvYXRpbmcgcG9pbnQgZXhjZXB0aW9uIGlz IG5vdCBwZW5kaW5nLiAgV2UKPj4gbmVlZCB0byBpZGVudGlmeSB0aGlzIGNhc2Ugc28gd2UgY2Fu IGNvcnJlY3RseSBhcHBseSB0aGUgY2hlY2sgZm9yCj4+IHdoZXRoZXIgdG8gc2F2ZS9yZXN0b3Jl IEZDUy9GRFMuCj4+Cj4+IEJ5IHBvaXNvbmluZyBGSVAgaW4gdGhlIHNhdmVkIHN0YXRlIHdlIGNh biBjaGVjayBpZiB0aGUgaGFyZHdhcmUKPj4gd3JpdGVzIHRvIHRoaXMgZmllbGQuICBUaGUgcG9p c29uIHZhbHVlIGlzIGJvdGg6IGEpIG5vbi1jYW5vbmljYWw7IGFuZAo+PiBiKSByYW5kb20gd2l0 aCBhIHZhbmlzaGluZ2x5IHNtYWxsIHByb2JhYmlsaXR5IG9mIG1hdGNoaW5nIGEgdmFsdWUKPj4g d3JpdHRlbiBieSB0aGUgaGFyZHdhcmUgKDEgLyAoMl42MykgPSAxMF4tMTkpLgo+IAo+IFRoZSBo YXJkd2FyZSBieSBpdHNlbGYgd2lsbCBhbHdheXMgd3JpdGUgYSBjYW5vbmljYWwgdmFsdWUgd2l0 aAo+IHRoZSA2NC1iaXQgc2F2ZSB2YXJpYW50cy4gVGhlIGNhc2UgdG8gY29uc2lkZXIgcmVhbGx5 IGlzLCBhcyBzYWlkCj4gYmVmb3JlLCB0aGF0IG9mIHNvZnR3YXJlIHN0b3JpbmcgYW4gYXJiaXRy YXJ5IHZhbHVlIHRoZXJlLCBhbmQKPiBmb3IgdGhhdCBjYXNlIEkgZG9uJ3QgdGhpbmsgYSBob3cg ZXZlciBzbWFsbCBwcm9iYWJpbGl0eSB3b3VsZAo+IG1ha2UgbXkgY29uY2VybnMgZ28gYXdheSAo b3IgZWxzZSBJIHdvdWxkIGhhdmUgc3VnZ2VzdGVkCj4gdGhpcyB2YXJpYXRpb24gb2YgeW91ciBw cmV2aW91cyBhcHByb2FjaCBkdXJpbmcgdjIgcmV2aWV3KS4KCkRvIHlvdSBub3QgYXBwcmVjaWF0 ZSBob3cgdW5saWtlbHkgMTBeLTE5IGlzPwoKQXNzdW1pbmcgYSBjb250ZXh0IHN3aXRjaCBldmVy eSAxIG1zIHRoZSBwcm9iYWJpbGl0eSBvZiBhIGVycm9yIGluIGEKeWVhciBpcyAzZS05LgoKVGhl IHByb2JhYmlsaXR5IG9mIGEgZGlub3NhdXIga2lsbGluZyBhc3Rlcm9pZCBzdHJpa2UgaW4gYSB5 ZWFyIGlzIGFib3V0CjJlLTguCgpJIGtub3cgd2hpY2ggb25lIEknZCBiZSB3b3JyaWVkIGFib3V0 Li4uCgo+PiBUaGUgcG9pc29uIHZhbHVlIGlzIGZpeGVkIGFuZCB0aHVzIGtub3dhYmxlIGJ5IGEg Z3Vlc3QgKG9yIGd1ZXN0Cj4+IHVzZXJzcGFjZSkuICBUaGlzIGNvdWxkIGFsbG93IHRoZSBndWVz dCB0byBjYXVzZSBYZW4gdG8gaW5jb3JyZWN0bHkKPj4gZGV0ZWN0IHRoYXQgdGhlIGZpZWxkIGhh cyBub3QgYmVlbiB3cml0dGVuLiAgQnV0OiBhKSB0aGlzIHJlcXVpcmVzIHRoZQo+PiBGSVAgcmVn aXN0ZXIgdG8gYmUgYSBmdWxsIDY0IGJpdHMgaW50ZXJuYWxseSB3aGljaCBpcyBub3QgdGhlIGNh c2UgZm9yCj4+IGFsbCBjdXJyZW50IEFNRCBhbmQgSW50ZWwgQ1BVczsgYW5kIGIpIHRoaXMgb25s eSBhbGxvd3MgdGhlIGd1ZXN0IChvcgo+PiBhIGd1ZXN0IHVzZXJzcGFjZSBwcm9jZXNzKSB0byBj b3JydXB0IGl0cyBvd24gc3RhdGUgKGkuZS4sIGl0IGNhbm5vdAo+PiBhZmZlY3QgdGhlIHN0YXRl IG9mIGFub3RoZXIgZ3Vlc3Qgb3IgYW5vdGhlciB1c2VyIHNwYWNlIHByb2Nlc3MpLgo+Pgo+PiBU aGlzIHJlc3VsdHMgaW4gc21hbGxlciBjb2RlIHdpdGggZmV3ZXIgYnJhbmNoZXMgYW5kIGlzIG1v cmUKPj4gdW5kZXJzdGFuZGFibGUuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IERhdmlkIFZyYWJlbCA8 ZGF2aWQudnJhYmVsQGNpdHJpeC5jb20+Cj4gCj4gUGVuZGluZyBjb25maXJtYXRpb24gb24gRklQ IHJlZ2lzdGVyIHdpZHRoIGJ5IGF0IGxlYXN0IEludGVsLAo+IFJldmlld2VkLWJ5OiBKYW4gQmV1 bGljaCA8amJldWxpY2hAc3VzZS5jb20+CgpGb3IgSW50ZWwgQ1BVcywgRklQIGlzIDQ4LWJpdHMg aW50ZXJuYWxseSBhbmQgbmV3ZXIgQ1BVcyBoYXZlIEZQQ1NEUyBhbmQKdGh1cyB3ZSB3aWxsIGFs d2F5cyB1c2UgdGhlIDY0LWJpdCBzYXZlLgoKRm9yIEFNRCwgd2hpY2ggb25seSB3cml0ZXMgRklQ IGFuZCBGRFAgaWYgYW4gZXhjZXB0aW9uIGlzIHBlbmRpbmcsIGlmIGEKZ3Vlc3Qgd2FudGVkIHRv IHVzZSBGSVAgdG8gc3RvcmUgYW4gYXJiaXRyYXJ5IDY0LWJpdCB2YWx1ZSAoaW4gc29tZQpmdXR1 cmUgQ1BVKSBpdCB3b3VsZCBoYXZlIHRvIG1hbnVhbGx5IHNldCBhbiBleGNlcHRpb24gYXMgcGVu ZGluZy4gIEl0cwpzZWVtcyBpbXBsYXVzaWJsZSB0aGF0IGFueSBzb2Z0d2FyZSB3b3VsZCBhY3R1 YWxseSBkbyB0aGlzLgoKRGF2aWQKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4u b3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=