From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: Re: [PATCH v20 1/2] common: add a new mappable resource type: XENMEM_resource_grant_table Date: Tue, 7 Aug 2018 14:43:12 +0000 Message-ID: <689ba72b438b4b25884b479eded44db6@AMSPEX02CL03.citrite.net> References: <20180806125449.2829-1-paul.durrant@citrix.com> <20180806125449.2829-2-paul.durrant@citrix.com> <5B69A0CF02000078001DB934@prv1-mh.provo.novell.com> <5B69AE8502000078001DB9E6@prv1-mh.provo.novell.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 1fn3DA-0000DP-Jm for xen-devel@lists.xenproject.org; Tue, 07 Aug 2018 14:43:48 +0000 In-Reply-To: <5B69AE8502000078001DB9E6@prv1-mh.provo.novell.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: 'Jan Beulich' Cc: Stefano Stabellini , Wei Liu , Andrew Cooper , "Tim (Xen.org)" , George Dunlap , Ian Jackson , xen-devel List-Id: xen-devel@lists.xenproject.org PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQo+IEZyb206IEphbiBCZXVsaWNoIFttYWlsdG86 SkJldWxpY2hAc3VzZS5jb21dCj4gU2VudDogMDcgQXVndXN0IDIwMTggMTU6MzcKPiBUbzogUGF1 bCBEdXJyYW50IDxQYXVsLkR1cnJhbnRAY2l0cml4LmNvbT4KPiBDYzogQW5kcmV3IENvb3BlciA8 QW5kcmV3LkNvb3BlcjNAY2l0cml4LmNvbT47IEdlb3JnZSBEdW5sYXAKPiA8R2VvcmdlLkR1bmxh cEBjaXRyaXguY29tPjsgSWFuIEphY2tzb24gPElhbi5KYWNrc29uQGNpdHJpeC5jb20+OyBXZWkg TGl1Cj4gPHdlaS5saXUyQGNpdHJpeC5jb20+OyBTdGVmYW5vIFN0YWJlbGxpbmkgPHNzdGFiZWxs aW5pQGtlcm5lbC5vcmc+OyB4ZW4tCj4gZGV2ZWwgPHhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0 Lm9yZz47IEtvbnJhZCBSemVzenV0ZWsgV2lsawo+IDxrb25yYWQud2lsa0BvcmFjbGUuY29tPjsg VGltIChYZW4ub3JnKSA8dGltQHhlbi5vcmc+Cj4gU3ViamVjdDogUkU6IFtQQVRDSCB2MjAgMS8y XSBjb21tb246IGFkZCBhIG5ldyBtYXBwYWJsZSByZXNvdXJjZSB0eXBlOgo+IFhFTk1FTV9yZXNv dXJjZV9ncmFudF90YWJsZQo+IAo+ID4+PiBPbiAwNy4wOC4xOCBhdCAxNjoxNCwgPFBhdWwuRHVy cmFudEBjaXRyaXguY29tPiB3cm90ZToKPiA+PiBGcm9tOiBKYW4gQmV1bGljaCBbbWFpbHRvOkpC ZXVsaWNoQHN1c2UuY29tXQo+ID4+IFNlbnQ6IDA3IEF1Z3VzdCAyMDE4IDE0OjM4Cj4gPj4KPiA+ PiA+Pj4gT24gMDYuMDguMTggYXQgMTQ6NTQsIDxwYXVsLmR1cnJhbnRAY2l0cml4LmNvbT4gd3Jv dGU6Cj4gPj4gPiAtLS0gYS94ZW4vY29tbW9uL2dyYW50X3RhYmxlLmMKPiA+PiA+ICsrKyBiL3hl bi9jb21tb24vZ3JhbnRfdGFibGUuYwo+ID4+ID4gQEAgLTM4NjAsNiArMzg2MCwzOCBAQCBpbnQg bWVtX3NoYXJpbmdfZ3JlZl90b19nZm4oc3RydWN0Cj4gPj4gZ3JhbnRfdGFibGUgKmd0LCBncmFu dF9yZWZfdCByZWYsCj4gPj4gPiAgfQo+ID4+ID4gICNlbmRpZgo+ID4+ID4KPiA+PiA+ICsvKiBj YWxsZXIgbXVzdCBob2xkIHJlYWQgb3Igd3JpdGUgbG9jayAqLwo+ID4+ID4gK3N0YXRpYyBpbnQg Z250dGFiX2dldF9zdGF0dXNfZnJhbWVfbWZuKHN0cnVjdCBkb21haW4gKmQsCj4gPj4gPiArICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgdW5zaWduZWQgbG9uZyBpZHgsIG1m bl90ICptZm4pCj4gPj4gPiArewo+ID4+ID4gKyAgICBzdHJ1Y3QgZ3JhbnRfdGFibGUgKmd0ID0g ZC0+Z3JhbnRfdGFibGU7Cj4gPj4gPiArCj4gPj4gPiArICAgIGlmICggaWR4ID49IG5yX3N0YXR1 c19mcmFtZXMoZ3QpICkKPiA+PiA+ICsgICAgICAgIHJldHVybiAtRUlOVkFMOwo+ID4+ID4gKwo+ ID4+ID4gKyAgICAqbWZuID0gX21mbih2aXJ0X3RvX21mbihndC0+c3RhdHVzW2lkeF0pKTsKPiA+ PiA+ICsgICAgcmV0dXJuIDA7Cj4gPj4gPiArfQo+ID4+ID4gKwo+ID4+ID4gKy8qIGNhbGxlciBt dXN0IGhvbGQgd3JpdGUgbG9jayAqLwo+ID4+ID4gK3N0YXRpYyBpbnQgZ250dGFiX2dldF9zaGFy ZWRfZnJhbWVfbWZuKHN0cnVjdCBkb21haW4gKmQsCj4gPj4gPiArICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgdW5zaWduZWQgbG9uZyBpZHgsIG1mbl90ICptZm4pCj4gPj4g PiArewo+ID4+ID4gKyAgICBzdHJ1Y3QgZ3JhbnRfdGFibGUgKmd0ID0gZC0+Z3JhbnRfdGFibGU7 Cj4gPj4gPiArCj4gPj4gPiArICAgIGlmICggZ3QtPmd0X3ZlcnNpb24gPT0gMCApCj4gPj4gPiAr ICAgICAgICBndC0+Z3RfdmVyc2lvbiA9IDE7Cj4gPj4gPiArCj4gPj4gPiArICAgIGlmICggKGlk eCA+PSBucl9ncmFudF9mcmFtZXMoZ3QpKSAmJiAoaWR4IDwgZ3QtPm1heF9ncmFudF9mcmFtZXMp ICkKPiA+PiA+ICsgICAgICAgIGdudHRhYl9ncm93X3RhYmxlKGQsIGlkeCArIDEpOwo+ID4+Cj4g Pj4gSSBndWVzcyBJIGhhZCBjb21tZW50ZWQgb24gdGhpcyBiZWZvcmUsIGJ1dCBpdCBoYXMgYmVl biBhIHdoaWxlOgo+ID4+IFdoaWxlIEkgcmVhbGl6ZSB0aGF0IHlvdSdyZSBqdXN0IG1vdmluZyBj b2RlLCBJIGRpc2xpa2UgdGhlIHJlc3VsdGluZwo+ID4+IGFzeW1tZXRyeSBiZXR3ZWVuIHRoZSB0 d28gZnVuY3Rpb25zOiBXaHkgd291bGQgdGhlIGZvcm1lcgo+ID4+IG5vdCB3YW50IHRvIGdyb3cg dGhlIGdyYW50IHRhYmxlPyBBbmQgd2h5IHdvdWxkIGEgdmVyc2lvbgo+ID4+IGFkanVzdG1lbnQg YmUgbmVlZGVkIChvbmx5KSBoZXJlIChJJ3ZlIHB1dCAib25seSIgaW4gcGFyZW50aGVzZXMKPiA+ PiBiZWNhdXNlIGl0J3Mgbm90IG9idmlvdXMgdG8gbWUgd2h5IHRoaXMgaXMgbmVlZGVkKT8KPiA+ Pgo+ID4+IEFuZCB0aGlzIGFzeW1tZXRyeSB3b3VsZCBzdXJlbHkgYmUgY29taW5nIGFzIHN1cnBy aXNlIGF0IGxlYXN0Cj4gPj4gdG8gY2FsbGVycyBvZiB0aGUgbmV3IGludGVyZmFjZSB5b3UgYWRk Lgo+ID4KPiA+IEknbSBoYXBweSB0byBoYXZlIGdldF9zdGF0dXNfZnJhbWUoKSBncm93IHRoZSB0 YWJsZSB0b28gYnV0IGl0IGRvZXMgbWVhbgo+IGEKPiA+IGNoYW5nZSBpbiBiZWhhdmlvdXIgdG8g Y2FsbGVycyBvZiBnbnR0YWJfbWFwX2ZyYW1lKCkuIElmIHRoYXQncyBub3QgYQo+IHByb2JsZW0K PiA+IHRoZW4gSSdsbCBtYWtlIHRoZSBjaGFuZ2UuCj4gCj4gSSdkIHNheSBpdCB3YXMgYSBtaXN0 YWtlIHRoZXJlIGJlZm9yZS4gVGhlIChzbGlnaHQpIGRpZmZpY3VsdHkgKHdoaWNoCj4gcHJvYmFi bHkgbWFkZSB3aG9ldmVyIHdyb3RlIHRoaXMgb3JpZ2luYWxseSBpZ25vcmUgdGhpcyBhc3BlY3Qp IGlzCj4gZmlndXJpbmcgb3V0IGhvdyBtdWNoIHRvIGdyb3cgdGhlIHRhYmxlLgo+IAoKWWVzLCB0 aGF0J3MgcHJvYmFibHkgd2h5IGl0IHdhc24ndCBkb25lLgoKPiA+PiA+ICtpbnQgZ250dGFiX2dl dF9zdGF0dXNfZnJhbWUoc3RydWN0IGRvbWFpbiAqZCwgdW5zaWduZWQgbG9uZyBpZHgsCj4gPj4g PiArICAgICAgICAgICAgICAgICAgICAgICAgICAgIG1mbl90ICptZm4pCj4gPj4gPiArewo+ID4+ ID4gKyAgICBzdHJ1Y3QgZ3JhbnRfdGFibGUgKmd0ID0gZC0+Z3JhbnRfdGFibGU7Cj4gPj4gPiAr ICAgIGludCByYzsKPiA+PiA+ICsKPiA+PiA+ICsgICAgZ3JhbnRfcmVhZF9sb2NrKGd0KTsKPiA+ PiA+ICsgICAgcmMgPSBnbnR0YWJfZ2V0X3N0YXR1c19mcmFtZV9tZm4oZCwgaWR4LCBtZm4pOwo+ ID4+ID4gKyAgICBncmFudF9yZWFkX3VubG9jayhndCk7Cj4gPj4gPiArCj4gPj4gPiArICAgIHJl dHVybiByYzsKPiA+PiA+ICt9Cj4gPj4KPiA+PiBBbG9uZyB0aGUgbGluZXMgb2Ygd2hhdCBnbnR0 YWJfbWFwX2ZyYW1lKCkgZG9lcywgSSdkIGV4cGVjdCBhCj4gPj4gY2hlY2sgZm9yIGd0X3ZlcnNp b24gdG8gYmUgMiBoZXJlLiBPciB3ZWxsLCBtYXliZSB0aGF0J3MgaW1wbGljaXQKPiA+PiBieSB0 aGVyZSBub3QgYmVpbmcgYW55IHN0YXR1cyBlbnRyaWVzL3BhZ2VzIGZvciB2ZXJzaW9uIDEgdGFi bGVzLgo+ID4KPiA+IFllcywgdGhhdCBzaG91bGQgYmUgdGhlIGNhc2UuCj4gPgo+ID4+IEJ1dCBp dCB3b3VsZCBiZWNvbWUgYSByZXF1aXJlbWVudCBpZiBnbnR0YWJfZ3Jvd190YWJsZSgpIHdhcyB0 bwo+ID4+IGJlIGNhbGxlZCBmcm9tIGdudHRhYl9nZXRfc3RhdHVzX2ZyYW1lX21mbigpLgo+ID4+ Cj4gPgo+ID4gWWVzLCBzbyBtYWtpbmcgdGhhdCBjaGFuZ2Ugd2lsbCBjZXJ0YWlubHkgYWRkIGNv bXBsZXhpdHkuCj4gCj4gSG1tLCB5ZXMgLSBhIHNpbmdsZSBpZigpLgoKQWxvbmcgd2l0aCB0aGUg Y2FsY3VsYXRpb24gdG8gd29yayBvdXQgaG93IG1hbnkgZnJhbWVzIHRvIGdyb3cgdGhlIGdyYW50 IHRhYmxlIGJ5IHRvIGdldCB0byB0aGUgbmVjZXNzYXJ5IHN0YXR1cyBmcmFtZS4gTm90IG1hc3Np dmUgY29tcGxleGl0eS4uLiBidXQgbW9yZSB0aGFuIHRoZXJlIGlzIG5vdy4KCiAgUGF1bAoKPiAK PiBKYW4KPiAKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpo dHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs