From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: [PATCH v3 2/2] qdisk - hw/block/xen_disk: grant copy implementation Date: Fri, 15 Jul 2016 12:15:45 +0100 Message-ID: <20160715111545.GA21149@citrix.com> References: <1466584733-19459-1-git-send-email-paulinaszubarczyk@gmail.com> <1466584733-19459-3-git-send-email-paulinaszubarczyk@gmail.com> <20160714103752.GQ31770@citrix.com> <5788BAE0.9080607@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bO15y-0006Lo-To for xen-devel@lists.xenproject.org; Fri, 15 Jul 2016 11:15:51 +0000 Content-Disposition: inline In-Reply-To: <5788BAE0.9080607@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Paulina Szubarczyk Cc: sstabellini@kernel.org, Wei Liu , ian.jackson@eu.citrix.com, david.vrabel@citrix.com, anthony.perard@citrix.com, xen-devel@lists.xenproject.org, roger.pau@citrix.com List-Id: xen-devel@lists.xenproject.org T24gRnJpLCBKdWwgMTUsIDIwMTYgYXQgMTI6Mjg6NDhQTSArMDIwMCwgUGF1bGluYSBTenViYXJj enlrIHdyb3RlOgo+IAo+IAo+IE9uIDA3LzE0LzIwMTYgMTI6MzcgUE0sIFdlaSBMaXUgd3JvdGU6 Cj4gPk9uIFdlZCwgSnVuIDIyLCAyMDE2IGF0IDEwOjM4OjUzQU0gKzAyMDAsIFBhdWxpbmEgU3p1 YmFyY3p5ayB3cm90ZToKPiA+PmRpZmYgLS1naXQgYS9jb25maWd1cmUgYi9jb25maWd1cmUKPiA+ PmluZGV4IGU0MTg3NmEuLjM1NWQzZmEgMTAwNzU1Cj4gPj4tLS0gYS9jb25maWd1cmUKPiA+Pisr KyBiL2NvbmZpZ3VyZQo+ID4+QEAgLTE4NDMsNyArMTg0Myw3IEBAIGZpCj4gPj4gICMgeGVuIHBy b2JlCj4gPj4KPiA+PiAgaWYgdGVzdCAiJHhlbiIgIT0gIm5vIiA7IHRoZW4KPiA+Pi0gIHhlbl9s aWJzPSItbHhlbnN0b3JlIC1seGVuY3RybCAtbHhlbmd1ZXN0Igo+ID4+KyAgeGVuX2xpYnM9Ii1s eGVuc3RvcmUgLWx4ZW5jdHJsIC1seGVuZ3Vlc3QgLWx4ZW5nbnR0YWIiCj4gPj4KPiA+Cj4gPkZp cnN0IHRoaW5nLCAtbHhlbmdudHRhYiBzaG91bGQgYmUgaW4geGVuX3N0YWJsZV9saWJzLgo+ID4K PiBEbyBJIHVuZGVyc3RhbmQgY29ycmVjdGx5IHRoYXQgSSBzaG91bGQgYWRkIGEgbmV3IHZhcmlh YmxlCj4gInhlbl9zdGFibGVfbGlicyI/IEkgY291bGQgbm90IGZpbmQgaXQgaW4gdGhlIHFlbXUg dHJlZSB1c2VkIGFueXdoZXJlIGVsc2UuCj4gCgpIbW0uLi4gdGhlcmUgaXMgYWxyZWFkeSBvbmUg aW4gdXBzdHJlYW0gUUVNVSAtLSB3aGljaCBtZWFucyB5b3UncmUKcGVyaGFwcyB1c2luZyBxZW11 LXhlbiB0cmVlLgoKSSB0aGluayBhbGwgbmV3IGRldmVsb3BtZW50IHNob3VsZCBoYXBwZW4gb24g dXBzdHJlYW0gcWVtdSwgbm90IGluIG91cgpxZW11LXhlbiB0cmVlLgoKPiA+VGhlIHByb2Jpbmcg bmVlZHMgdG8gYmUgbW9yZSBzb3BoaXN0aWNhdGVkLgo+ID4KPiA+WW91IG5lZWQgdG8gcHJvYmUg dGhlIG5ldyBmdW5jdGlvbiB5b3VyIGFkZGVkIGFzIHdlbGwuIEp1c3QgYSBmZXcgbGluZXMKPiA+ YmVsb3cgeGVuX3N0YWJsZV9saWJzIHRoZXJlIGlzIGEgc2VjdGlvbiBmb3IgaGFuZC1jb2RlZCBw cm9iaW5nIHNvdXJjZQo+ID5jb2RlLCB3aGljaCB5b3Ugd291bGQgbmVlZCB0byBtb2RpZnkuCj4g Pgo+ID5Bc3N1bWluZyB5b3VyIGdudHRhYiBjaGFuZ2Ugd2lsbCBiZSBtZXJnZWQgaW50byA0Ljgg KHRoZSByZWxlYXNlIHVuZGVyCj4gPmRldmVsb3BtZW50IGF0IHRoZSBtb21lbnQpLCB5b3UgbmVl ZCB0byBoYXZlIGEgc2VwYXJhdGUgcHJvZ3JhbSBmb3IgaXQuCj4gPgo+IEkgd2lsbCBhZGQgdGhh dC4KPiAKPiA+QWZ0ZXIgeW91J3ZlIGRvbmUgcHJvcGVyIHByb2JpbmcsIHlvdSB3aWxsIGtub3cg d2hpY2ggdmVyc2lvbiBvZiBYZW4KPiA+dGhpcyBxZW11IGlzIGNvbXBpbGluZyBhZ2FpbnN0LiAg QW5kIHRoZW4sIHRoZXJlIHNob3VsZCBiZSBzb21lIGZhbGxiYWNrCj4gPm1lY2hhbmlzbSB0byBj b21waWxlIGFuZCBydW4gdGhpcyBxZW11IHdpdGggb2xkZXIgdmVyc2lvbiBvZiB4ZW4uIFRoaXMK PiA+aXMgbm90IHRvbyBoYXJkIGJlY2F1c2UgeW91IGNhbiBndWFyZCB5b3VyIGNvZGUgd2l0aCBm ZWF0dXJlIGZsYWcgb3IKPiA+aWZkZWYgKHBsZWFzZSBjb25zdWx0IFN0ZWZhbiBhbmQgQW50aG9u eSB3aGljaCBtZXRob2QgdG8gdXNlKS4KPiA+Cj4gPkZlZWwgZnJlZSB0byBhc2sgcXVlc3Rpb25z LiBJIHdpbGwgdHJ5IG15IGJlc3QgdG8gZXhwbGFpbi4KPiA+Cj4gPj4KPiA+PisgICAgYmxrZGV2 LT5mZWF0dXJlX2dyYW50X2NvcHkgPQo+ID4+KyAgICAgICAgICAgICAgICAoeGVuZ250dGFiX2dy YW50X2NvcHkoYmxrZGV2LT54ZW5kZXYuZ250dGFiZGV2LCAwLCBOVUxMKSA9PSAwKTsKPiA+Cj4g PlRoaXMgaXMgYSBiaXQgcHJvYmxlbWF0aWMuIEFzIHRoaXMgcGF0Y2ggc3RhbmRzLCBpdCB3b24n dCBjb21waWxlIG9uCj4gPm9sZGVyIHZlcnNpb24gb2YgWGVuIGJlY2F1c2UgdGhlcmUgaXMgbm8g c3VjaCBmdW5jdGlvbiB0aGVyZS4KPiAKPiBUaGVyZSBpcyBhIHZhcmlhYmxlIENPTkZJR19YRU5f Q1RSTF9JTlRFUkZBQ0VfVkVSU0lPTiBob2xkaW5nIGN1cnJlbnQKPiB2ZXJzaW9uIG9mIHRoZSBY ZW4gY29udHJvbCBsaWJyYXJ5IHRoaXMgcWVtdSBpcyBjb25maWd1cmVkIHdpdGguIEl0IGlzIHNl dAo+IGZyb20gdGhlIGNvbmZpZ3VyZSBmaWxlLiBUaGUgZmVhdHVyZSBjb3VsZCBiZSBndWFyZGVk IHdpdGggaWZkZWYgYnkgYSBuZXcKPiB2YXJpYWJsZSBDT05GSUdfWEVOX0xJQlNfSU5URVJGQUNF X1ZFUlNJT04gb3IgdGhleSBjb3VsZCBiZSB1bmlmaWVkIHRvCj4gQ09ORklHX1hFTl9UT09MU19J TlRFUkZBQ0VfVkVSU0lPTiB0byBub3QgZmlsbCB0aGUgc2FtZSB2YWx1ZSB0d2ljZS4KPiAKCkFu b3RoZXIgd2F5IGlzIHRvIHByb3ZpZGUgYSBzdHViIGZvciB0aGlzIGZ1bmN0aW9uIHRvIGFsd2F5 cyByZXR1cm4gMC4KClBsZWFzZSB3YWl0IGZvciBTdGVmYW5vIGFuZCBBbnRob255IHRvIHNlZSB3 aGljaCBtZXRob2QgdGhleSBwcmVmZXIuCgpXZWkuCgo+IFBhdWxpbmEKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QK WGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=