From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [PATCH v8.1 11/27] xsplice: Implement payload loading Date: Wed, 20 Apr 2016 11:59:34 -0400 Message-ID: <20160420155913.GA29455@localhost.localdomain> References: <1460584928-32440-1-git-send-email-konrad.wilk@oracle.com> <1460584928-32440-12-git-send-email-konrad.wilk@oracle.com> <571489B102000078000E6B6C@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.bemta14.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1asuY0-0005ge-Of for xen-devel@lists.xenproject.org; Wed, 20 Apr 2016 16:00:12 +0000 Content-Disposition: inline In-Reply-To: <571489B102000078000E6B6C@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: sstabellini@kernel.org, keir@xen.org, andrew.cooper3@citrix.com, mpohlack@amazon.com, ross.lagerwall@citrix.com, julien.grall@arm.com, sasha.levin@oracle.com, xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org PiA+K3ZvaWQgYXJjaF94c3BsaWNlX2ZyZWVfcGF5bG9hZCh2b2lkICp2YSkKPiA+K3sKPiA+KyAg ICB2ZnJlZV94ZW4odmEpOwo+ID4rfQo+IAo+IFdoYXQgaXMgdGhlIGlkZWEgYmVoaW5kIGhhdmlu ZyB0aGlzIGhvb2sgKGluc3RlYWQgb2YgZ2VuZXJpYyBjb2RlIGp1c3QgY2FsbGluZwo+IHZmcmVl X3hlbigpIFtvciByZWFsbHkganVzdCB2ZnJlZSgpXSk/CgpUbyBoYXZlIGFuIHN5bW1ldHJ5IHdp dGggdGhlIGFsbG9jYXRpb24gb25lLiBJIGRvbid0IGtub3cgZW5vdWdoIGFib3V0CkFSTSB0byBr bm93IHdoZXRoZXIgdGhpcyBsb2dpYyBhYm92ZSBjYW4gYmUgaG9pc3RlZCBpbiB0aGUgY29tbW9u IGNvZGUKYW5kIGhlbmNlIGNhbGxlZCAob3IgY29tcGlsZWQpIG9uIEFSTS4KCkxldCBtZSB0cnku Cj4gCj4gPkBAIC0yOSw2ICszMCwxMyBAQCBzdHJ1Y3QgcGF5bG9hZCB7Cj4gICAgICA+dWludDMy X3Qgc3RhdGU7ICAgICAgICAgICAgICAgICAgICAgIC8qIE9uZSBvZiB0aGUgWFNQTElDRV9TVEFU RV8qLiAqLwo+ICAgICAgPmludDMyX3QgcmM7ICAgICAgICAgICAgICAgICAgICAgICAgICAvKiAw IG9yIC1YRU5fRVhYLiAqLwo+ICAgICAgPnN0cnVjdCBsaXN0X2hlYWQgbGlzdDsgICAgICAgICAg ICAgICAvKiBMaW5rZWQgdG8gJ3BheWxvYWRfbGlzdCcuICovCj4gPisgICAgdm9pZCAqdGV4dF9h ZGRyOyAgICAgICAgICAgICAgICAgICAgIC8qIFZpcnR1YWwgYWRkcmVzcyBvZiAudGV4dC4gKi8K PiA+KyAgICBzaXplX3QgdGV4dF9zaXplOyAgICAgICAgICAgICAgICAgICAgLyogLi4gYW5kIGl0 cyBzaXplLiAqLwo+ID4rICAgIHZvaWQgKnJ3X2FkZHI7ICAgICAgICAgICAgICAgICAgICAgICAv KiBWaXJ0dWFsIGFkZHJlc3Mgb2YgLmRhdGEuICovCj4gPisgICAgc2l6ZV90IHJ3X3NpemU7ICAg ICAgICAgICAgICAgICAgICAgIC8qIC4uIGFuZCBpdHMgc2l6ZSAoaWYgYW55KS4gKi8KPiA+KyAg ICB2b2lkICpyb19hZGRyOyAgICAgICAgICAgICAgICAgICAgICAgLyogVmlydHVhbCBhZGRyZXNz IG9mIC5yb2RhdGEuICovCj4gPisgICAgc2l6ZV90IHJvX3NpemU7ICAgICAgICAgICAgICAgICAg ICAgIC8qIC4uIGFuZCBpdHMgc2l6ZSAoaWYgYW55KS4gKi8KPiAKPiBBbmQgYWdhaW4gdGhlIHF1 ZXN0aW9uOiBEbyB0aGVzZSBwb2ludGVycyByZWFsbHkgbmVlZCB0byBiZSBub24tY29uc3Q/CgpJ IGtub3cgSSB0cmllZCBtYWtpbmcgdGhlbSBjb25zdCBhbmQgdGhlIGNvbXBpbGVyIHdhcyBub3Qg aGFwcHkuIEkgd2lsbApmb2xsb3cgdXAgd2l0aCB0aGUgcmVhc29uaW5nLgo+IAo+ID4rIHNpemVf dCBwYWdlczsgLyogVG90YWwgcGFnZXMgZm9yIFt0ZXh0LHJ3LHJvXV9hZGRyICovCj4gCj4gV2h5 IHNpemVfdCBhbmQgbm90IGp1c3QgdW5zaWduZWQgaW50PwoKT2guIEkgd2FzIHNvbWVob3cgdW5k ZXIgdGhlIGltcHJlc3Npb24geW91IGxpa2VkIHNpemVfdCBtb3JlIHRoYW4KdW5zaWduZ2VkIGlu dCEgSSB3aWxsIGNoYW5nZSBpdCBvdmVyLgo+IAo+ID4rc3RhdGljIHZvaWQgY2FsY19zZWN0aW9u KHN0cnVjdCB4c3BsaWNlX2VsZl9zZWMgKnNlYywgc2l6ZV90ICpzaXplKQo+ID4rewo+ID4rICAg IEVsZl9TaGRyICpzID0gc2VjLT5zZWM7Cj4gPisgICAgc2l6ZV90IGFsaWduX3NpemU7Cj4gPisK PiA+KyAgICBhbGlnbl9zaXplID0gUk9VTkRVUCgqc2l6ZSwgcy0+c2hfYWRkcmFsaWduKTsKPiA+ KyAgICBzLT5zaF9lbnRzaXplID0gYWxpZ25fc2l6ZTsKPiAKPiBTbyB0aGlzIGlzIG9uZSBvZiB0 aGUgcGxhY2VzICh0aGUgb25seSBvbmU/KSB3aGVyZSB0aGUgc2VjdGlvbiBoZWFkZXIgZ2V0cwo+ IGFsdGVyZWQuIEFyZSB5b3Ugbm90IGV4cGVjdGluZyBwcm9ibGVtcyBkb3duIHRoZSByb2FkIHJl c3VsdGluZyBmcm9tCj4gb3ZlcndyaXRpbmcgdGhpcyBmaWVsZD8gQWZ0ZXIgYWxsIGl0J3MgdXNl ZCBub3QganVzdCBpbiBjb250cm9sIHNlY3Rpb25zLi4uCgpUaGUgJ21hbiBlbGYnIHRlbGxzIG1l IDoKIlNvbWUgIHNlY3Rpb25zICBob2xkIGEgdGFibGUgb2YgZml4ZWQtc2l6ZWQgZW50cmllcywg c3VjaCBhcyBhIHN5bWJvbAp0YWJsZS4gIEZvciBzdWNoIGEgc2VjdGlvbiwgdGhpcyBtZW1iZXIg Z2l2ZXMgdGhlIHNpemUgaW4gYnl0ZXMgZm9yIGVhY2ggZW50cnkuCiBUaGlzIG1lbWJlciBjb250 YWlucyB6ZXJvIGlmIHRoZSBzZWN0aW9uIGRvZXMgbm90IGhvbGQgIGEgIHRhYmxlICBvZiAKZml4 ZWQtc2l6ZSBlbnRyaWVzLiIKCldlIG1heSBoYXZlIGFuIHZhbHVlIGZvciBhbiBwYXlsb2FkIHdp dGggb25lIHN5bWJvbCBidXQgd2UgZG9uJ3QgZGVwZW5kCm9uIHRoaXMgdmFsdWUgaGF2aW5nIGFu eSB2YWx1ZSBhbmQganVzdCByZS11c2UuCgpXZSBjb3VsZCBjaGFuZ2UgdGhlIGxvZ2ljIHRvIHNh dmUgdGhlIGFsaWduZWQgc2l6ZSAod2hpY2ggd291bGQgdGhlbiBhbHRlcgp0aGUgYW1vdW50IG9m IHBhZ2VzIHRvIGFsbG9jYXRlIGFsb25nIHdpdGggdGhlIGFtb3VudCBvZiBieXRlcyB0byBjb3B5 KQppbiBzb21lICdwZXItc2VjdGlvbicgdGVtcG9yYXJ5IHZhcmlhYmxlIChzbyBhZGRpbmcgYW4g ZXh0cmEgZmllbGQgaW4KJ3N0cnVjdCB4c3BsaWNlX2VsZl9zZWMnKS4KCkxldCBtZSBwcm90b3R5 cGUgdGhhdC4KPiAKPiA+K3N0YXRpYyBpbnQgbW92ZV9wYXlsb2FkKHN0cnVjdCBwYXlsb2FkICpw YXlsb2FkLCBzdHJ1Y3QgeHNwbGljZV9lbGYgKmVsZikKPiA+K3sKLi5zbmlwLi4KCj4gPisgICAg Zm9yICggaSA9IDE7IGkgPCBlbGYtPmhkci0+ZV9zaG51bTsgaSsrICkKPiA+KyAgICB7Cj4gPisg ICAgICAgIGlmICggIShlbGYtPnNlY1tpXS5zZWMtPnNoX2ZsYWdzICYgU0hGX0FMTE9DKSAmJgo+ ID4rICAgICAgICAgICAgIChlbGYtPnNlY1tpXS5zZWMtPnNoX2ZsYWdzICYgU0hGX0VYRUNJTlNU UikgJiYKPiA+KyAgICAgICAgICAgICAoZWxmLT5zZWNbaV0uc2VjLT5zaF9mbGFncyAmIFNIRl9X UklURSkgKQo+ID4rICAgICAgICB7Cj4gPisgICAgICAgICAgICBkcHJpbnRrKFhFTkxPR19FUlIs IFhTUExJQ0UgIiVzOiBObyBXWCBzZWN0aW9ucyFcbiIsIGVsZi0+bmFtZSk7Cj4gPisgICAgICAg ICAgICByZXR1cm4gLUVJTlZBTDsKPiA+KyAgICAgICAgfQo+IAo+IElzIHRoZXJlIGFueSByZWFz b24gdG8gaGF2ZSBmb3VyIGxvb3BzIGhlcmUsIHdpdGggcXVpdGUgYSBiaXQgb2YgcmVkdW5kYW5j eSBpbgo+IHRoZSBpZigpcywgaW5zdGVhZCBvZiBqdXN0IG9uZSBsb29wIHdpdGggYSBpZi9lbHNl IHNlcXVlbmNlPwoKVGhlcmUgd2FzIGEgaGlzdG9yaWNhbCByZWFzb24gLSB3ZSB3cmUgcmUtdXNp bmcgJ3NpemUnIGJ1dCB0aGF0IGlzIG5vCmxvbmdlciB0aGUgY2FzZS4KPiAKPiBBbHNvIGl0J3Mg bm90IHJlYWxseSBjbGVhciB3aGV0aGVyIHlvdSByZWFsbHkgbWVhbiB0byBob25vciBub24tcHJv Z2JpdHMsIG5vbi0KPiBub2JpdHMgc2VjdGlvbnMgd2l0aCBTSEZfQUxMT0Mgc2V0LiBQZXJoYXBz IHN1Y2ggd291bGQgYmV0dGVyIGJlIHJlZnVzZWQKPiBmb3IgdGhlIG5vdyBhdCBsZWFzdC4KCk9L LiAKPiAKPiA+KyAgICBmb3IgKCBpID0gMTsgaSA8IGVsZi0+aGRyLT5lX3NobnVtOyBpKysgKQo+ ID4rICAgIHsKPiA+KyAgICAgICAgaWYgKCBlbGYtPnNlY1tpXS5zZWMtPnNoX2ZsYWdzICYgU0hG X0FMTE9DICkKPiA+KyAgICAgICAgewo+ID4rICAgICAgICAgICAgaWYgKCAoZWxmLT5zZWNbaV0u c2VjLT5zaF9mbGFncyAmIFNIRl9FWEVDSU5TVFIpICkKPiA+KyAgICAgICAgICAgICAgICAgYnVm ID0gcGF5bG9hZC0+dGV4dF9hZGRyOwo+ID4rICAgICAgICAgICAgZWxzZSBpZiAoIChlbGYtPnNl Y1tpXS5zZWMtPnNoX2ZsYWdzICYgU0hGX1dSSVRFKSApCj4gPisgICAgICAgICAgICAgICAgYnVm ID0gcGF5bG9hZC0+cndfYWRkcjsKPiA+KyAgICAgICAgICAgICBlbHNlCj4gCj4gU29tZXRoaW5n J3Mgd3Jvbmcgd2l0aCBpbmRlbnRhdGlvbiBoZXJlIChub3QgdmlzaWJsZSBhYm92ZSBhbnltb3Jl IGR1ZSB0bwo+IHRoZSBsaW1pdGF0aW9ucyBvZiB0aGlzIHdlYiBmcm9udGVuZCBvZiBvdXIgbWFp bCBzeXN0ZW0pLgo+IAo+ID4rICAgICAgICAgICAgLyogRG9uJ3QgY29weSBOT0JJVFMgLSBzdWNo IGFzIEJTUy4gKi8KPiA+KyAgICAgICAgICAgIGlmICggZWxmLT5zZWNbaV0uc2VjLT5zaF90eXBl ICE9IFNIVF9OT0JJVFMgKQo+ID4rICAgICAgICAgICAgewo+ID4rICAgICAgICAgICAgICAgIG1l bWNweShlbGYtPnNlY1tpXS5sb2FkX2FkZHIsIGVsZi0+c2VjW2ldLmRhdGEsCj4gPisgICAgICAg ICAgICAgICAgICAgICAgIGVsZi0+c2VjW2ldLnNlYy0+c2hfc2l6ZSk7Cj4gPisgICAgICAgICAg ICAgICAgZHByaW50ayhYRU5MT0dfREVCVUcsIFhTUExJQ0UgIiVzOiBMb2FkZWQgJXMgYXQgMHgl cFxuIiwKPiA+KyAgICAgICAgICAgICAgICAgICAgICAgIGVsZi0+bmFtZSwgZWxmLT5zZWNbaV0u bmFtZSwgZWxmLT5zZWNbaV0ubG9hZF9hZGRyKTsKPiA+KyAgICAgICAgICAgIH0KPiAKPiAiZWxz ZSBtZW1zZXQoKTsiIGlzIHdoYXQgSSB3b3VsZCBoYXZlIGV4cGVjdGVkIGhlcmUuIE5vdyBJIHNl ZSB0aGF0IHRoZQo+IGFsbG9jYXRpb24gZnVuY3Rpb24gY2xlYXJzIHRoZSBwYWdlcyAoaW4gYSBi b2d1c2x5IG9wZW4gY29kZWQgd2F5LCBpbnN0ZWFkCj4gb2YgdXNpbmcgdnphbGxvYygpKSwgYnV0 IHdoeSBpcyB0aGF0IHNvPwoKQi9jIHdlIGVuZCB1cCBoYXZpbmcgdnphbGxvY194ZW4gKG9oIHdh aXQsIHdlIG1hZGUgdGhhdCBnbyBhd2F5KS4gWWVzCndlIGRvIG5lZWQgYW4gbWVtc2V0IG9yIGlu dHJvZHVjZSB2emFsbG9jX3hlbiAoYW5kIGtlZXAgdm1hbGxvY194ZW4/KS4KCllvdXIgY2FsbCAt IG1lbXNldCBvciBpbnRyb2R1Y2UgdnphbGxvY194ZW4gPwo+IAo+ID4raW50IHhzcGxpY2VfZWxm X3Jlc29sdmVfc3ltYm9scyhzdHJ1Y3QgeHNwbGljZV9lbGYgKmVsZikKLi4gc25pcC4uCj4gPisg ICAgICAgIGRlZmF1bHQ6Cj4gPisgICAgICAgICAgICAvKiBTSE5fQ09NTU9OIGFuZCBTSE5fQUJT IGFyZSBhYm92ZS4gKi8KPiA+KyAgICAgICAgICAgIGlmICggaWR4ID4gU0hOX0xPUkVTRVJWRSAp Cj4gCj4gPj0KPiAKPiA+KyAgICAgICAgICAgICAgICByYyA9IC1FT1BOT1RTVVBQOwo+ID4rICAg ICAgICAgICAgLyogU0hOX1VOREVGICgwKSBhYm92ZS4gKi8KPiA+KyAgICAgICAgICAgIGVsc2Ug aWYgKCBpZHggPiBlbGYtPmhkci0+ZV9zaG51bSAmJiBpZHggPCBTSE5fTE9SRVNFUlZFICkKPiAK PiA+PSBhbmQgdGhlIHJpZ2h0IHNpZGUgb2YgdGhlICYmIHNlZW1zIHBvaW50bGVzcyBkdWUgdG8g dGhlIHByZWNlZGluZyBpZigpLgo+IAo+ID4rICAgICAgICAgICAgaWYgKCAhKGVsZi0+c2VjW2lk eF0uc2VjLT5zaF9mbGFncyAmIFNIRl9BTExPQykgKQo+ID4rICAgICAgICAgICAgICAgIGJyZWFr Owo+IAo+IElmIHlvdSByZWFsbHkgbWVhbiB0byBjaGVjayB0aGlzLCBzaG91bGRuJ3QgdGhpcyBi ZSBkb25lIGVhcmxpZXIsIGF2b2lkaW5nIG5lZWRsZXNzCj4gZXJyb3JzIG9uIHVuc3VwcG9ydGVk IHN5bWJvbCBraW5kcyBhYm92ZT8KClJpZ2h0ISBXaWxsIG1vdmUgdGhvc2UgIGNoZWNrcyByaWdo dCBhYm92ZSB0aGUgc3dpdGNoIHN0YXRlbWVudC4KCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxp c3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==