From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: Re: [PATCH v11 06/11] x86/hvm/ioreq: add a new mappable resource type... Date: Mon, 16 Oct 2017 14:17:12 +0000 Message-ID: <29fc47fc105841969779ed2949ec1a8c@AMSPEX02CL03.citrite.net> References: <20171012162603.3016-1-paul.durrant@citrix.com> <20171012162603.3016-7-paul.durrant@citrix.com> <59E4D92C0200007800186C12@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.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e46Dp-0003Lf-Oa for xen-devel@lists.xenproject.org; Mon, 16 Oct 2017 14:18:25 +0000 In-Reply-To: <59E4D92C0200007800186C12@prv-mh.provo.novell.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: 'Jan Beulich' Cc: Stefano Stabellini , Konrad Rzeszutek Wilk , Andrew Cooper , "Tim (Xen.org)" , Ian Jackson , "xen-devel@lists.xenproject.org" List-Id: xen-devel@lists.xenproject.org PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQo+IEZyb206IEphbiBCZXVsaWNoIFttYWlsdG86 SkJldWxpY2hAc3VzZS5jb21dCj4gU2VudDogMTYgT2N0b2JlciAyMDE3IDE1OjA3Cj4gVG86IFBh dWwgRHVycmFudCA8UGF1bC5EdXJyYW50QGNpdHJpeC5jb20+Cj4gQ2M6IEFuZHJldyBDb29wZXIg PEFuZHJldy5Db29wZXIzQGNpdHJpeC5jb20+OyBJYW4gSmFja3Nvbgo+IDxJYW4uSmFja3NvbkBj aXRyaXguY29tPjsgU3RlZmFubyBTdGFiZWxsaW5pIDxzc3RhYmVsbGluaUBrZXJuZWwub3JnPjsg eGVuLQo+IGRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnOyBLb25yYWQgUnplc3p1dGVrIFdpbGsK PiA8a29ucmFkLndpbGtAb3JhY2xlLmNvbT47IFRpbSAoWGVuLm9yZykgPHRpbUB4ZW4ub3JnPgo+ IFN1YmplY3Q6IFJlOiBbWGVuLWRldmVsXSBbUEFUQ0ggdjExIDA2LzExXSB4ODYvaHZtL2lvcmVx OiBhZGQgYSBuZXcKPiBtYXBwYWJsZSByZXNvdXJjZSB0eXBlLi4uCj4gCj4gPj4+IE9uIDEyLjEw LjE3IGF0IDE4OjI1LCA8cGF1bC5kdXJyYW50QGNpdHJpeC5jb20+IHdyb3RlOgo+ID4gLi4uIFhF Tk1FTV9yZXNvdXJjZV9pb3JlcV9zZXJ2ZXIKPiA+Cj4gPiBUaGlzIHBhdGNoIGFkZHMgc3VwcG9y dCBmb3IgYSBuZXcgcmVzb3VyY2UgdHlwZSB0aGF0IGNhbiBiZSBtYXBwZWQgdXNpbmcKPiA+IHRo ZSBYRU5NRU1fYWNxdWlyZV9yZXNvdXJjZSBtZW1vcnkgb3AuCj4gPgo+ID4gSWYgYW4gZW11bGF0 b3IgbWFrZXMgdXNlIG9mIHRoaXMgcmVzb3VyY2UgdHlwZSB0aGVuLCBpbnN0ZWFkIG9mIG1hcHBp bmcKPiA+IGdmbnMsIHRoZSBJT1JFUSBzZXJ2ZXIgd2lsbCBhbGxvY2F0ZSBwYWdlcyBmcm9tIHRo ZSBoZWFwLiBUaGVzZSBwYWdlcwo+ID4gd2lsbCBuZXZlciBiZSBwcmVzZW50IGluIHRoZSBQMk0g b2YgdGhlIGd1ZXN0IGF0IGFueSBwb2ludCBhbmQgc28gYXJlCj4gPiBub3QgdnVsbmVyYWJsZSB0 byBhbnkgZGlyZWN0IGF0dGFjayBieSB0aGUgZ3Vlc3QuIFRoZXkgYXJlIG9ubHkgZXZlcgo+ID4g YWNjZXNzaWJsZSBieSBYZW4gYW5kIGFueSBkb21haW4gdGhhdCBoYXMgbWFwcGluZyBwcml2aWxl Z2Ugb3ZlciB0aGUKPiA+IGd1ZXN0ICh3aGljaCBtYXkgb3IgbWF5IG5vdCBiZSBsaW1pdGVkIHRv IHRoZSBkb21haW4gcnVubmluZyB0aGUKPiBlbXVsYXRvcikuCj4gPgo+ID4gTk9URTogVXNlIG9m IHRoZSBuZXcgcmVzb3VyY2UgdHlwZSBpcyBub3QgY29tcGF0aWJsZSB3aXRoIHVzZSBvZgo+ID4g ICAgICAgWEVOX0RNT1BfZ2V0X2lvcmVxX3NlcnZlcl9pbmZvIHVubGVzcyB0aGUgWEVOX0RNT1Bf bm9fZ2Zucwo+IGZsYWcgaXMKPiA+ICAgICAgIHNldC4KPiA+Cj4gPiBTaWduZWQtb2ZmLWJ5OiBQ YXVsIER1cnJhbnQgPHBhdWwuZHVycmFudEBjaXRyaXguY29tPgo+ID4gQWNrZWQtYnk6IEdlb3Jn ZSBEdW5sYXAgPEdlb3JnZS5EdW5sYXBAZXUuY2l0cml4LmNvbT4KPiA+IFJldmlld2VkLWJ5OiBX ZWkgTGl1IDx3ZWkubGl1MkBjaXRyaXguY29tPgo+IAo+IENhbiB5b3UgaGF2ZSB2YWxpZGx5IHJl dGFpbmVkIHRoaXM/CgpJIGRpZG4ndCB0aGluayB0aGUgc3RydWN0dXJlIG9mIHRoaXMgcGFydGlj dWxhciBwYXRjaCBoYWQgY2hhbmdlZCB0aGF0IGZ1bmRhbWVudGFsbHkuCgo+IAo+ID4gLS0tIGEv eGVuL2FyY2gveDg2L2h2bS9pb3JlcS5jCj4gPiArKysgYi94ZW4vYXJjaC94ODYvaHZtL2lvcmVx LmMKPiA+IEBAIC0yODEsNiArMjk0LDY5IEBAIHN0YXRpYyBpbnQgaHZtX21hcF9pb3JlcV9nZm4o c3RydWN0Cj4gaHZtX2lvcmVxX3NlcnZlciAqcywgYm9vbCBidWYpCj4gPiAgICAgIHJldHVybiBy YzsKPiA+ICB9Cj4gPgo+ID4gK3N0YXRpYyBpbnQgaHZtX2FsbG9jX2lvcmVxX21mbihzdHJ1Y3Qg aHZtX2lvcmVxX3NlcnZlciAqcywgYm9vbCBidWYpCj4gPiArewo+ID4gKyAgICBzdHJ1Y3QgZG9t YWluICpjdXJyZCA9IGN1cnJlbnQtPmRvbWFpbjsKPiA+ICsgICAgc3RydWN0IGh2bV9pb3JlcV9w YWdlICppb3JwID0gYnVmID8gJnMtPmJ1ZmlvcmVxIDogJnMtPmlvcmVxOwo+ID4gKwo+ID4gKyAg ICBpZiAoIGlvcnAtPnBhZ2UgKQo+ID4gKyAgICB7Cj4gPiArICAgICAgICAvKgo+ID4gKyAgICAg ICAgICogSWYgYSBndWVzdCBmcmFtZSBoYXMgYWxyZWFkeSBiZWVuIG1hcHBlZCAod2hpY2ggbWF5 IGhhcHBlbgo+ID4gKyAgICAgICAgICogb24gZGVtYW5kIGlmIGh2bV9nZXRfaW9yZXFfc2VydmVy X2luZm8oKSBpcyBjYWxsZWQpLCB0aGVuCj4gPiArICAgICAgICAgKiBhbGxvY2F0aW5nIGEgcGFn ZSBpcyBub3QgcGVybWl0dGVkLgo+ID4gKyAgICAgICAgICovCj4gPiArICAgICAgICBpZiAoICFn Zm5fZXEoaW9ycC0+Z2ZuLCBJTlZBTElEX0dGTikgKQo+ID4gKyAgICAgICAgICAgIHJldHVybiAt RVBFUk07Cj4gPiArCj4gPiArICAgICAgICByZXR1cm4gMDsKPiA+ICsgICAgfQo+ID4gKwo+ID4g KyAgICAvKgo+ID4gKyAgICAgKiBBbGxvY2F0ZWQgSU9SRVEgc2VydmVyIHBhZ2VzIGFyZSBhc3Np Z25lZCB0byB0aGUgZW11bGF0aW5nCj4gPiArICAgICAqIGRvbWFpbiwgbm90IHRoZSB0YXJnZXQg ZG9tYWluLiBUaGlzIGlzIGJlY2F1c2UgdGhlIGVtdWxhdG9yIGlzCj4gPiArICAgICAqIGxpa2Vs eSB0byBiZSBkZXN0cm95ZWQgYWZ0ZXIgdGhlIHRhcmdldCBkb21haW4gaGFzIGJlZW4gdG9ybgo+ ID4gKyAgICAgKiBkb3duLCBhbmQgd2UgbXVzdCB1c2UgTUVNRl9ub19yZWZjb3VudCBvdGhlcndp c2UgcGFnZQo+IGFsbG9jYXRpb24KPiA+ICsgICAgICogY291bGQgZmFpbCBpZiB0aGUgZW11bGF0 aW5nIGRvbWFpbiBoYXMgYWxyZWFkeSByZWFjaGVkIGl0cwo+ID4gKyAgICAgKiBtYXhpbXVtIGFs bG9jYXRpb24uCj4gPiArICAgICAqLwo+ID4gKyAgICBpb3JwLT5wYWdlID0gYWxsb2NfZG9taGVh cF9wYWdlKGN1cnJkLCBNRU1GX25vX3JlZmNvdW50KTsKPiA+ICsgICAgaWYgKCAhaW9ycC0+cGFn ZSApCj4gPiArICAgICAgICByZXR1cm4gLUVOT01FTTsKPiA+ICsKPiA+ICsgICAgaWYgKCAhZ2V0 X3BhZ2VfdHlwZShpb3JwLT5wYWdlLCBQR1Rfd3JpdGFibGVfcGFnZSkgKQo+ID4gKyAgICB7Cj4g Cj4gQVNTRVJUX1VOUkVBQ0hBQkxFKCkgPwoKT2suCgo+IAo+ID4gQEAgLTc3Nyw2ICs4ODYsNTEg QEAgaW50IGh2bV9nZXRfaW9yZXFfc2VydmVyX2luZm8oc3RydWN0IGRvbWFpbiAqZCwKPiBpb3Nl cnZpZF90IGlkLAo+ID4gICAgICByZXR1cm4gcmM7Cj4gPiAgfQo+ID4KPiA+ICtpbnQgaHZtX2dl dF9pb3JlcV9zZXJ2ZXJfZnJhbWUoc3RydWN0IGRvbWFpbiAqZCwgaW9zZXJ2aWRfdCBpZCwKPiA+ ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgdW5zaWduZWQgbG9uZyBpZHgsIG1mbl90 ICptZm4pCj4gPiArewo+ID4gKyAgICBzdHJ1Y3QgaHZtX2lvcmVxX3NlcnZlciAqczsKPiA+ICsg ICAgaW50IHJjOwo+ID4gKwo+ID4gKyAgICBzcGluX2xvY2tfcmVjdXJzaXZlKCZkLT5hcmNoLmh2 bV9kb21haW4uaW9yZXFfc2VydmVyLmxvY2spOwo+ID4gKwo+ID4gKyAgICBpZiAoIGlkID09IERF RkFVTFRfSU9TRVJWSUQgKQo+ID4gKyAgICAgICAgcmV0dXJuIC1FT1BOT1RTVVBQOwo+ID4gKwo+ ID4gKyAgICBzID0gZ2V0X2lvcmVxX3NlcnZlcihkLCBpZCk7Cj4gPiArCj4gPiArICAgIEFTU0VS VCghSVNfREVGQVVMVChzKSk7Cj4gPiArCj4gPiArICAgIHJjID0gaHZtX2lvcmVxX3NlcnZlcl9h bGxvY19wYWdlcyhzKTsKPiA+ICsgICAgaWYgKCByYyApCj4gPiArICAgICAgICBnb3RvIG91dDsK PiA+ICsKPiA+ICsgICAgc3dpdGNoICggaWR4ICkKPiA+ICsgICAgewo+ID4gKyAgICBjYXNlIFhF Tk1FTV9yZXNvdXJjZV9pb3JlcV9zZXJ2ZXJfZnJhbWVfYnVmaW9yZXE6Cj4gPiArICAgICAgICBy YyA9IC1FTk9FTlQ7Cj4gPiArICAgICAgICBpZiAoICFIQU5ETEVfQlVGSU9SRVEocykgKQo+ID4g KyAgICAgICAgICAgIGdvdG8gb3V0Owo+ID4gKwo+ID4gKyAgICAgICAgKm1mbiA9IF9tZm4ocGFn ZV90b19tZm4ocy0+YnVmaW9yZXEucGFnZSkpOwo+ID4gKyAgICAgICAgcmMgPSAwOwo+ID4gKyAg ICAgICAgYnJlYWs7Cj4gCj4gSG93IGFib3V0Cj4gCj4gICAgICAgICBpZiAoIEhBTkRMRV9CVUZJ T1JFUShzKSApCj4gICAgICAgICAgICAgKm1mbiA9IF9tZm4ocGFnZV90b19tZm4ocy0+YnVmaW9y ZXEucGFnZSkpOwo+ICAgICAgICAgZWxzZQo+ICAgICAgICAgICAgIHJjID0gLUVOT0VOVDsKPiAg ICAgICAgIGJyZWFrOwo+IAoKTG9va2luZyBhdCB0aGUgb3ZlcmFsbCBzdHJ1Y3R1cmUgSSBwcmVm ZXIgaXQgYXMgaXQgaXMuIElmIEkgY291bGQgaGF2ZSBnb3QgcmlkIG9mIHRoZSBvdXQgbGFiZWwg YnkgZG9pbmcgdGhpcyB0aGVuIGl0IG1pZ2h0IGhhdmUgYmVlbiB3b3J0aCB0aGUgY2hhbmdlLgoK PiA/Cj4gCj4gPiAraW50IHhlbm1lbV9hY3F1aXJlX2lvcmVxX3NlcnZlcihzdHJ1Y3QgZG9tYWlu ICpkLCB1bnNpZ25lZCBpbnQgaWQsCj4gPiArICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICB1bnNpZ25lZCBsb25nIGZyYW1lLAo+ID4gKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgdW5zaWduZWQgbG9uZyBucl9mcmFtZXMsCj4gPiArICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICB1bnNpZ25lZCBsb25nIG1mbl9saXN0W10pCj4gPiArewo+ID4gKyAgICB1bnNpZ25l ZCBpbnQgaTsKPiAKPiBUaGlzIG5vdyBkb2Vzbid0IG1hdGNoIHVwIHdpdGggdGhlIHVwcGVyIGJv dW5kJ3MgdHlwZS4KPiAKCk9rLgoKPiA+IEBAIC02MjksNiArNjM0LDEwIEBAIHN0cnVjdCB4ZW5f bWVtX2FjcXVpcmVfcmVzb3VyY2Ugewo+ID4gICAgICAgKiAgICAgIGlzIG9wdGlvbmFsIGlmIG5y X2ZyYW1lcyBpcyAwLgo+ID4gICAgICAgKi8KPiA+ICAgICAgdWludDY0X2FsaWduZWRfdCBmcmFt ZTsKPiA+ICsKPiA+ICsjZGVmaW5lIFhFTk1FTV9yZXNvdXJjZV9pb3JlcV9zZXJ2ZXJfZnJhbWVf YnVmaW9yZXEgMAo+ID4gKyNkZWZpbmUgWEVOTUVNX3Jlc291cmNlX2lvcmVxX3NlcnZlcl9mcmFt ZV9pb3JlcShuXykgKDEgKyAobl8pKQo+IAo+IEkgZG9uJ3Qgc2VlIHdoYXQgeW91IG5lZWQgdGhl IHRyYWlsaW5nIHVuZGVyc2NvcmUgZm9yLiBUaGlzIGlzCj4gbm9ybWFsbHkgb25seSBuZWVkZWQg b24gbG9jYWwgdmFyaWFibGVzIGRlZmluZWQgaW4gKGdjYyBleHRlbmRlZCkKPiBtYWNyb3MsIHdo aWNoIHdlIGdlbmVyYWxseSBjYW4ndCB1c2UgaW4gYSBwdWJsaWMgaGVhZGVyIGFueXdheS4KPiAK CkkgdGhvdWdodCBpdCB3YXMgZ2VuZXJhbGx5IGRlc2lyYWJsZSB0byBhdHRlbXB0IHRvIGRpc3Rp bmd1aXNoIG1hY3JvIGFyZ3VtZW50cyBmcm9tIHZhcmlhYmxlIHRvIGF2b2lkIG5hbWUgY2xhc2hl cy4gV2hhdCBkbyB5b3UgcHJlZmVyIEkgc2hvdWxkIGRvIGluIGEgcHVibGljIGhlYWRlcj8KCiAg UGF1bAoKPiBKYW4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6 Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=