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: Sat, 21 Apr 2018 14:32:08 +0100 Message-ID: <20180421133208.GA61756@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> 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 1f9sch-0008QY-UH for xen-devel@lists.xenproject.org; Sat, 21 Apr 2018 13:32:15 +0000 Content-Disposition: inline In-Reply-To: <58b2d6ba-381d-4f4e-e0bb-bf6281ba6ac6@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 SGksCgpBdCAwOTo0NCArMDIwMCBvbiAxOSBBcHIgKDE1MjQxMzEwODApLCBKdWVyZ2VuIEdyb3Nz IHdyb3RlOgo+ID4+IFNvIGVpdGhlciBJJ20gYWRkaW5nIHNvbWUga2luZCBvZiBsb2NraW5nL3Jj dSwgb3IgSSdtIHN3aXRjaGluZyB0byB1c2UKPiA+PiBJUElzIGFuZCBhY2Nlc3Mgcm9vdF9wZ3Rf Y2hhbmdlZCBvbmx5IGxvY2FsbHkuCj4gPj4KPiA+PiBEbyB5b3UgaGF2ZSBhbnkgcHJlZmVyZW5j ZT8KPiA+IAo+ID4gU2luY2UgaXNzdWluZyBhbiBJUEkgaXMganVzdCBhIHNpbmdsZSBjYWxsLCBJ J2QgcHJlZmVyIG5vdCB0byBoYXZlIG5ldyAobG9ja2luZywKPiA+IHJjdSwgb3Igd2hhdGV2ZXIg ZWxzZSkgbG9naWMgYWRkZWQgaGVyZS4gVW5sZXNzIG9mIGNvdXJzZSBzb21lb25lLCBpbgo+ID4g cGFydGljdWxhciBUaW0sIHRoaW5rcyBzZW5kaW5nIGFuIElQSSBoZXJlIGlzIGEgcmF0aGVyIGJh ZCBpZGVhLgoKQUZBSUNTIHlvdSdyZSBjYWxsaW5nIHRoaXMgZnJvbSBzaGFkb3cgY29kZSB3aGVu ZXZlciBpdCBjaGFuZ2VzIGFuCkw0ZSwgc28gSSdkIHJhdGhlciBub3QgaGF2ZSBhbiBJUEkgaGVy ZSBpZiB3ZSBkb24ndCBuZWVkIGl0LgoKPiBBbm90aGVyIGFsdGVybmF0aXZlIHdvdWxkIGJlIHRv IHBhc3MgYW5vdGhlciBmbGFnIHRvIHRoZSBjYWxsZXJzIHRvCj4gc2lnbmFsIHRoZSBuZWVkIGZv ciBhIGZsdXNoLiBUaGlzIHdvdWxkIHJlcXVpcmUgcXVpdGUgc29tZSBtb2RpZmljYXRpb25zCj4g dG8gc2hhZG93IGNvZGUgSSdkIGxpa2UgdG8gYXZvaWQsIHRob3VnaC4gT1RPSCB0aGlzIHdheSB3 ZSBjb3VsZCBjb21iaW5lCj4gZmx1c2hpbmcgdGhlIHRsYiBhbmQgdGhlIHJvb3QgcGFnZSB0YWJs ZXMuIFRpbSwgYW55IHByZWZlcmVuY2VzPwoKVGhpcyBzb3VuZHMgYSBwcm9taXNpbmcgZGlyZWN0 aW9uIGJ1dCBpdCBzaG91bGQgYmUgZG9hYmwgd2l0aG91dCBtYWpvcgpzdXJnZXJ5IHRvIHRoZSBz aGFkb3cgY29kZS4gIFRoZSBzaGFkb3cgY29kZSBhbHJlYWR5IGxlYXZlcyBvbGQgc2w0ZXMKdmlz aWJsZSAoaW4gVExCcykgd2hlbiBpdCdzIHNhZmUgdG8gZG8gc28sIHNvIEkgdGhpbmsgdGhlIHJp Z2h0IHBsYWNlCnRvIGhvb2sgdGhpcyBpcyBvbiB0aGUgcmVjZWl2aW5nIHNpZGUgb2YgdGhlIFRM QiBmbHVzaCBJUEkuICBJT1cgYXMKbG9uZyBhczoKIC0geW91IGNvcHkgdGhlIEw0IG9uIGNvbnRl eHQgc3dpdGNoOyBhbmQKIC0geW91IGNvcHkgaXQgb24gdGhlIFRMQiBmbHVzaCBJUEkgaXMgcmVj ZWl2ZWQKdGhlbiB5b3UgY2FuIHJlbHkgb24gdGhlIGV4aXN0aW5nIFRMQiBmbHVzaCBtZWNoYW5p c21zIHRvIGRvIHdoYXQgeW91IG5lZWQuCkFuZCBzaGFkb3cgZG9lc24ndCBoYXZlIHRvIGJlaGF2 ZSBkaWZmZXJlbnRseSBmcm9tICdub3JtYWwnIFBWIE1NLgoKRG8geW91IHRoaW5rIGl0IG5lZWRz IG1vcmUgKGluIHBhcnRpY3VsYXIgdG8gYXZvaWQgdGhlIEw0IGNvcHkgb24gVExCCmZsdXNoZXM/ KSAgV291bGQgYSBwZXItZG9tYWluIGZsYWcgYmUgZ29vZCBlbm91Z2ggaWYgcGVyLXZjcHUgaXMK ZGlmZmljdWx0PwoKVGltLgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2pl Y3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4t ZGV2ZWw=