From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Deegan Subject: Re: [PATCH v8 1/9] x86/xpti: avoid copying L4 page table contents when possible Date: Sun, 22 Apr 2018 17:39:46 +0100 Message-ID: <20180422163946.GA66778@deinos.phlegethon.org> References: <20180418083051.8334-1-jgross@suse.com> <20180418083051.8334-2-jgross@suse.com> <5AD76E5A02000078001BC770@suse.com> <35756e6c-dc79-f0a1-df31-bca0495e3352@suse.com> <5AD847BD02000078001BC8D9@suse.com> <58b2d6ba-381d-4f4e-e0bb-bf6281ba6ac6@suse.com> <20180421133208.GA61756@deinos.phlegethon.org> <7a0d30e0-1c7c-c7f5-6bd0-81709ea3890a@suse.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 1fAI1s-0005i2-9W for xen-devel@lists.xenproject.org; Sun, 22 Apr 2018 16:39:56 +0000 Content-Disposition: inline In-Reply-To: <7a0d30e0-1c7c-c7f5-6bd0-81709ea3890a@suse.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Juergen Gross Cc: Andrew Cooper , Jan Beulich , xen-devel List-Id: xen-devel@lists.xenproject.org QXQgMTk6MTEgKzAyMDAgb24gMjEgQXByICgxNTI0MzM3ODkzKSwgSnVlcmdlbiBHcm9zcyB3cm90 ZToKPiBPbiAyMS8wNC8xOCAxNTozMiwgVGltIERlZWdhbiB3cm90ZToKPiA+IEF0IDA5OjQ0ICsw MjAwIG9uIDE5IEFwciAoMTUyNDEzMTA4MCksIEp1ZXJnZW4gR3Jvc3Mgd3JvdGU6Cj4gPj4gQW5v dGhlciBhbHRlcm5hdGl2ZSB3b3VsZCBiZSB0byBwYXNzIGFub3RoZXIgZmxhZyB0byB0aGUgY2Fs bGVycyB0bwo+ID4+IHNpZ25hbCB0aGUgbmVlZCBmb3IgYSBmbHVzaC4gVGhpcyB3b3VsZCByZXF1 aXJlIHF1aXRlIHNvbWUgbW9kaWZpY2F0aW9ucwo+ID4+IHRvIHNoYWRvdyBjb2RlIEknZCBsaWtl IHRvIGF2b2lkLCB0aG91Z2guIE9UT0ggdGhpcyB3YXkgd2UgY291bGQgY29tYmluZQo+ID4+IGZs dXNoaW5nIHRoZSB0bGIgYW5kIHRoZSByb290IHBhZ2UgdGFibGVzLiBUaW0sIGFueSBwcmVmZXJl bmNlcz8KPiA+IAo+ID4gVGhpcyBzb3VuZHMgYSBwcm9taXNpbmcgZGlyZWN0aW9uIGJ1dCBpdCBz aG91bGQgYmUgZG9hYmwgd2l0aG91dCBtYWpvcgo+ID4gc3VyZ2VyeSB0byB0aGUgc2hhZG93IGNv ZGUuICBUaGUgc2hhZG93IGNvZGUgYWxyZWFkeSBsZWF2ZXMgb2xkIHNsNGVzCj4gPiB2aXNpYmxl IChpbiBUTEJzKSB3aGVuIGl0J3Mgc2FmZSB0byBkbyBzbywgc28gSSB0aGluayB0aGUgcmlnaHQg cGxhY2UKPiA+IHRvIGhvb2sgdGhpcyBpcyBvbiB0aGUgcmVjZWl2aW5nIHNpZGUgb2YgdGhlIFRM QiBmbHVzaCBJUEkuICBJT1cgYXMKPiA+IGxvbmcgYXM6Cj4gPiAgLSB5b3UgY29weSB0aGUgTDQg b24gY29udGV4dCBzd2l0Y2g7IGFuZAo+ID4gIC0geW91IGNvcHkgaXQgb24gdGhlIFRMQiBmbHVz aCBJUEkgaXMgcmVjZWl2ZWQKPiA+IHRoZW4geW91IGNhbiByZWx5IG9uIHRoZSBleGlzdGluZyBU TEIgZmx1c2ggbWVjaGFuaXNtcyB0byBkbyB3aGF0IHlvdSBuZWVkLgo+ID4gQW5kIHNoYWRvdyBk b2Vzbid0IGhhdmUgdG8gYmVoYXZlIGRpZmZlcmVudGx5IGZyb20gJ25vcm1hbCcgUFYgTU0uCj4g Cj4gSXQgaXMgbm90IHNvIGVhc3kuIFRoZSBwcm9ibGVtIGlzIHRoYXQgZS5nLiBhIHBhZ2UgZmF1 bHQgd2lsbCBmbHVzaCB0aGUKPiBUTEIgZW50cnkgZm9yIHRoZSBwYWdlIGluIHF1ZXN0aW9uLCBi dXQgaXQgd29uJ3QgbGVhZCB0byB0aGUgTDQgdG8gYmUKPiBjb3BpZWQuCgpPaCB5ZXMsIEkgc2Vl OyB0aGFua3MgZm9yIHRoZSBleHBsYW5hdGlvbi4gIEl0IG1pZ2h0IGJlIHdvcnRoIGNvcHlpbmcK d2hhdCB0aGUgaGFyZHdhcmUgZG9lcyBoZXJlLCBhbmQgY2hlY2tpbmcvcHJvcGFnYXRpbmcgdGhl IHJlbGV2YW50IGw0ZQppbiB0aGUgUFYgcGFnZWZhdWx0IGhhbmRsZXIuCgpUaW0uCgoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxp bmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5w cm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==