From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Deegan Subject: Re: [PATCH 5/7] x86/shadow: Use the pagewalk reserved bits helpers Date: Mon, 6 Mar 2017 09:26:58 +0000 Message-ID: <20170306092658.GA31428@deinos.phlegethon.org> References: <421428cc-d42a-d372-2a8d-e3ffe1f72193@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <421428cc-d42a-d372-2a8d-e3ffe1f72193@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Andrew Cooper Cc: George Dunlap , Jan Beulich , Xen-devel List-Id: xen-devel@lists.xenproject.org QXQgMTI6MjYgKzAwMDAgb24gMDIgTWFyICgxNDg4NDU3NjEzKSwgQW5kcmV3IENvb3BlciB3cm90 ZToKPiBPbiAwMS8wMy8xNyAxNjowMywgSmFuIEJldWxpY2ggd3JvdGU6Cj4gPj4+PiBPbiAyNy4w Mi4xNyBhdCAxNTowMywgPGFuZHJldy5jb29wZXIzQGNpdHJpeC5jb20+IHdyb3RlOgo+ID4+IFRo ZSBzaGFkb3cgbG9naWMgc2hvdWxkIG5ldmVyIGNyZWF0ZSBhIHNoYWRvdyBvZiBhIGd1ZXN0IFBU RSB3aGljaCBjb250YWlucwo+ID4+IHJlc2VydmVkIGJpdHMgZnJvbSB0aGUgZ3Vlc3RzIHBvaW50 IG9mIHZpZXcuICBTdWNoIGEgc2hhZG93ZWQgZW50cnkgbWlnaHQgbm90Cj4gPj4gY2F1c2UgI1BG W1JTVkRdIHdoZW4gd2Fsa2VkIGJ5IGhhcmR3YXJlLCB0aHVzIHdvbid0IGJlaGF2ZSBhcmNoaXRl Y3R1cmFsbHkKPiA+PiBmcm9tIHRoZSBndWVzdHMgcG9pbnQgb2Ygdmlldy4KPiA+IEJ1dCBhcmUg d2UgYWxyZWFkeSBvci1pbmcgaW4gdGhlIFJTVkQgYml0IGFjY29yZGluZ2x5IGluIHN1Y2ggY2Fz ZXMsCj4gPiBiZWZvcmUgaGFuZGluZyB0aGUgI1BGIHRvIHRoZSBndWVzdD8gVGhlIHBhdGNoIGhl cmUgY2VydGFpbmx5Cj4gPiBkb2Vzbid0IG1ha2UgYW55IGNoYW5nZSB0b3dhcmRzIHRoYXQsIGFm YWljcy4KPiAKPiBUaGUgcHVycG9zZSBvZiB0aGlzIHBhdGNoIGlzIHRvIGVuc3VyZSB3ZSBuZXZl ciBjcmVhdGUgYSBzaGFkb3cgd2hpY2gKPiByaXNrcyBjYXVzaW5nIGhhcmR3YXJlIHRvIGdlbmVy YXRlICNQRltSU1ZEXSB3aGVuIHJ1bm5pbmcgb24gdGhlCj4gc2hhZG93cywgb3RoZXIgdGhhbiB0 aGUgb25lIGRlbGliZXJhdGUgY2FzZSAoTU1JTyBmYXN0cGF0aCkuCgpDb25mdXNpb24hIEFJVUk6 CgogLSBTaGFkb3dzIGluc3RhbGxlZCBvbiBkZW1hbmQgaW4gdGhlIHBhZ2VmYXVsdCBoYW5kbGVy IGFyZSBhbHJlYWR5CiAgIGNvcnJlY3QuICBJZiB0aGUgZ3Vlc3QgUFRFIGNvbnRhaW5lZCBpbnZh bGlkIGJpdHMgd2UnZCBoYXZlIGluamVjdGVkCiAgIGEgZmF1bHQgaW5zdGVhZCBvZiBzaGFkb3dp bmcgaXQuCgogLSBUaGVyZSBpcyBubyByaXNrIG9mIGFjY2lkZW50YWxseSBpbnN0YWxsaW5nIGEg c2hhZG93IHdpdGggcmVzZXJ2ZWQKICAgYml0cyBpbiBpdCBldmVuIGlmIHRoZSBndWVzdCBwdGUg aGFzIHJlc2VydmVkIGJpdHMgaW4gaXQuCiAgIF9zaF9wcm9wYWdhdGUoKSBzYW5pdHktY2hlY2tz IHRoZSBmbGFncywgYW5kIHRoZSBhZGRyZXNzIGJpdHMKICAgY29tZSBmcm9tIHRoZSBNRk4gKElP VyB3ZSdkIG5lZWQgYSBidWdneSBwMm0gZW50cnkpLiAgSWYgdGhhdCB3ZXJlCiAgIGEgcmlzaywg SSBkb24ndCB0aGluayB0aGlzIHBhdGNoIHdvdWxkIHNvbHZlIGl0LgoKIC0gVGhlIHBvdGVudGlh bCBidWcgdGhhdCB0aGlzIHBhdGNoIHRyaWVzIHRvIGZpeCBpczoKICAgMS4gR3Vlc3Qgd3JpdGVz IGEgUFRFIHdpdGggcmVzZXJ2ZWQgYml0cyBpbiBpdC4KICAgMi4gVGhhdCBnZXRzIHNoYWRvd2Vk IGJ5IGEgd3JpdGUtdG8tcGFnZXRhYmxlIHBhdGggb3IgYSBwcmVmZXRjaC4KICAgMy4gVGhlIHNo YWRvdyBpcyBhIHZhbGlkIFBURSwgc28gdGhlIGd1ZXN0IGdldHMgbm8gI1BGLCBpbnN0ZWFkCiAg ICAgIG9mICNQRihyc3ZkKS4KCk5vdyBieSB0aGUgc2FtZSBsb2dpYyBJIHVzZWQgYWJvdmUgdGhl cmUncyBwcm9iYWJseSBubyBwYXRoCndoZXJlIGEgcmVzZXJ2ZWQgX2FkZHJlc3NfIGJpdCBjYXVz ZXMgYSBwcm9ibGVtLCBidXQgSSBzZWUgbm8gaGFybQppbiBjZW50cmFsaXNpbmcgdGhlIGxvZ2lj IGFuZCB1c2luZyB0aGUgc2FtZSBjb2RlIGZvciB0aGVzZQpwYXRocyBhcyBmb3IgdGhlIHB0IHdh bGtlci4KCkluIGFuc3dlcmluZyB0aGlzLCBJJ3ZlIHNwb3R0ZWQgdGhhdCB0aGUgY2FsbHMgdG8K bDFlX3Byb3BhZ2F0ZV9mcm9tX2d1ZXN0KCkgaW4gc2hfcmVzeW5jX2wxKCkgYW5kIHNoX3ByZWZl dGNoKCkKYXJlbid0IHVwZGF0ZWQgaW4gdGhpcyBwYXRjaCBhbmQgc2hvdWxkIGJlLiAKCkNoZWVy cywKClRpbS4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f Clhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9s aXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=