From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: [PATCH v2 48/62] xen/pvshim: add grant table operations Date: Fri, 12 Jan 2018 11:28:56 +0000 Message-ID: <20180112112910.16762-49-wei.liu2@citrix.com> References: <20180112112910.16762-1-wei.liu2@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eZxz6-0003CS-S9 for xen-devel@lists.xenproject.org; Fri, 12 Jan 2018 11:58:56 +0000 In-Reply-To: <20180112112910.16762-1-wei.liu2@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Xen-devel Cc: wei.liu2@citrix.com List-Id: xen-devel@lists.xenproject.org RnJvbTogUm9nZXIgUGF1IE1vbm5lIDxyb2dlci5wYXVAY2l0cml4LmNvbT4KClNpZ25lZC1vZmYt Ynk6IFJvZ2VyIFBhdSBNb25uw6kgPHJvZ2VyLnBhdUBjaXRyaXguY29tPgpTaWduZWQtb2ZmLWJ5 OiBBbnRob255IExpZ3VvcmkgPGFsaWd1b3JpQGFtYXpvbi5jb20+ClNpZ25lZC1vZmYtYnk6IEFu ZHJldyBDb29wZXIgPGFuZHJldy5jb29wZXIzQGNpdHJpeC5jb20+Ci0tLQpDaGFuZ2VzIHNpbmNl IHYxOgogLSBVc2UgX18gb2YgY29weV90b19ndWVzdC4KIC0gUmV0dXJuIEVPUE5PVFNVUFAgZm9y IG5vdCBpbXBsZW1lbnRlZCBncmFudCB0YWJsZSBoeXBlcmNhbGxzLgogLSBGb3J3YXJkIHVzZXIg cHJvdmlkZWQgYnVmZmVyIGluIEdOVFRBQk9QX3F1ZXJ5X3NpemUuCiAtIFJld3JpdGUgZ3JhbnQg dGFibGUgaHlwZXJjYWxsIGhhbmRsZXIuCi0tLQogeGVuL2FyY2gveDg2L3B2L3NoaW0uYyAgICAg ICAgICAgICAgICB8IDE2NCArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrCiB4ZW4v aW5jbHVkZS9hc20teDg2L2d1ZXN0L2h5cGVyY2FsbC5oIHwgICA2ICsrCiAyIGZpbGVzIGNoYW5n ZWQsIDE3MCBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2L3B2L3NoaW0u YyBiL3hlbi9hcmNoL3g4Ni9wdi9zaGltLmMKaW5kZXggMzZmM2EzNjZkMy4uZWI4YjE0Njc4NSAx MDA2NDQKLS0tIGEveGVuL2FyY2gveDg2L3B2L3NoaW0uYworKysgYi94ZW4vYXJjaC94ODYvcHYv c2hpbS5jCkBAIC0yMiw2ICsyMiw3IEBACiAjaW5jbHVkZSA8eGVuL2d1ZXN0X2FjY2Vzcy5oPgog I2luY2x1ZGUgPHhlbi9oeXBlcmNhbGwuaD4KICNpbmNsdWRlIDx4ZW4vaW5pdC5oPgorI2luY2x1 ZGUgPHhlbi9pb2NhcC5oPgogI2luY2x1ZGUgPHhlbi9zaHV0ZG93bi5oPgogI2luY2x1ZGUgPHhl bi90eXBlcy5oPgogCkBAIC0zMiw2ICszMyw4IEBACiAKICNpbmNsdWRlIDxwdWJsaWMvYXJjaC14 ODYvY3B1aWQuaD4KIAorI2luY2x1ZGUgPGNvbXBhdC9ncmFudF90YWJsZS5oPgorCiAjaWZuZGVm IENPTkZJR19QVl9TSElNX0VYQ0xVU0lWRQogYm9vbCBwdl9zaGltOwogYm9vbGVhbl9wYXJhbSgi cHYtc2hpbSIsIHB2X3NoaW0pOwpAQCAtMzksNyArNDIsMTQgQEAgYm9vbGVhbl9wYXJhbSgicHYt c2hpbSIsIHB2X3NoaW0pOwogCiBzdGF0aWMgc3RydWN0IGRvbWFpbiAqZ3Vlc3Q7CiAKK3N0YXRp YyB1bnNpZ25lZCBpbnQgbnJfZ3JhbnRfbGlzdDsKK3N0YXRpYyB1bnNpZ25lZCBsb25nICpncmFu dF9mcmFtZXM7CitzdGF0aWMgREVGSU5FX1NQSU5MT0NLKGdyYW50X2xvY2spOworCiBzdGF0aWMg bG9uZyBwdl9zaGltX2V2ZW50X2NoYW5uZWxfb3AoaW50IGNtZCwgWEVOX0dVRVNUX0hBTkRMRV9Q QVJBTSh2b2lkKSBhcmcpOworc3RhdGljIGxvbmcgcHZfc2hpbV9ncmFudF90YWJsZV9vcCh1bnNp Z25lZCBpbnQgY21kLAorICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBYRU5fR1VF U1RfSEFORExFX1BBUkFNKHZvaWQpIHVvcCwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgdW5zaWduZWQgaW50IGNvdW50KTsKIAogI2RlZmluZSBMMV9QUk9UIChfUEFHRV9QUkVT RU5UfF9QQUdFX1JXfF9QQUdFX0FDQ0VTU0VEfF9QQUdFX1VTRVJ8IFwKICAgICAgICAgICAgICAg ICAgX1BBR0VfR1VFU1RfS0VSTkVMKQpAQCAtMTI3LDYgKzEzNyw5IEBAIHZvaWQgX19pbml0IHB2 X3NoaW1fc2V0dXBfZG9tKHN0cnVjdCBkb21haW4gKmQsIGw0X3BnZW50cnlfdCAqbDRzdGFydCwK ICAgICBwdl9oeXBlcmNhbGxfdGFibGVfcmVwbGFjZShfX0hZUEVSVklTT1JfZXZlbnRfY2hhbm5l bF9vcCwKICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAoaHlwZXJjYWxsX2ZuX3QgKilw dl9zaGltX2V2ZW50X2NoYW5uZWxfb3AsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg KGh5cGVyY2FsbF9mbl90ICopcHZfc2hpbV9ldmVudF9jaGFubmVsX29wKTsKKyAgICBwdl9oeXBl cmNhbGxfdGFibGVfcmVwbGFjZShfX0hZUEVSVklTT1JfZ3JhbnRfdGFibGVfb3AsCisgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgKGh5cGVyY2FsbF9mbl90ICopcHZfc2hpbV9ncmFudF90 YWJsZV9vcCwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAoaHlwZXJjYWxsX2ZuX3Qg Kilwdl9zaGltX2dyYW50X3RhYmxlX29wKTsKICAgICBndWVzdCA9IGQ7CiB9CiAKQEAgLTM2Myw2 ICszNzYsMTU3IEBAIHZvaWQgcHZfc2hpbV9pbmplY3RfZXZ0Y2huKHVuc2lnbmVkIGludCBwb3J0 KQogICAgIH0KIH0KIAorc3RhdGljIGxvbmcgcHZfc2hpbV9ncmFudF90YWJsZV9vcCh1bnNpZ25l ZCBpbnQgY21kLAorICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBYRU5fR1VFU1Rf SEFORExFX1BBUkFNKHZvaWQpIHVvcCwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgdW5zaWduZWQgaW50IGNvdW50KQoreworICAgIHN0cnVjdCBkb21haW4gKmQgPSBjdXJyZW50 LT5kb21haW47CisgICAgbG9uZyByYyA9IDA7CisKKyAgICBpZiAoIGNvdW50ICE9IDEgKQorICAg ICAgICByZXR1cm4gLUVJTlZBTDsKKworICAgIHN3aXRjaCAoIGNtZCApCisgICAgeworICAgIGNh c2UgR05UVEFCT1Bfc2V0dXBfdGFibGU6CisgICAgeworICAgICAgICBib29sIGNvbXBhdCA9IGlz X3B2XzMyYml0X2RvbWFpbihkKTsKKyAgICAgICAgc3RydWN0IGdudHRhYl9zZXR1cF90YWJsZSBu YXQ7CisgICAgICAgIHN0cnVjdCBjb21wYXRfZ250dGFiX3NldHVwX3RhYmxlIGNtcDsKKyAgICAg ICAgdW5zaWduZWQgaW50IGk7CisKKyAgICAgICAgaWYgKCB1bmxpa2VseShjb21wYXQgPyBjb3B5 X2Zyb21fZ3Vlc3QoJmNtcCwgdW9wLCAxKQorICAgICAgICAgICAgICAgICAgICAgICAgICAgICA6 IGNvcHlfZnJvbV9ndWVzdCgmbmF0LCB1b3AsIDEpKSB8fAorICAgICAgICAgICAgIHVubGlrZWx5 KGNvbXBhdCA/ICFjb21wYXRfaGFuZGxlX29rYXkoY21wLmZyYW1lX2xpc3QsCisgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBjbXAubnJfZnJhbWVzKQor ICAgICAgICAgICAgICAgICAgICAgICAgICAgICA6ICFndWVzdF9oYW5kbGVfb2theShuYXQuZnJh bWVfbGlzdCwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgbmF0Lm5yX2ZyYW1lcykpICkKKyAgICAgICAgeworICAgICAgICAgICAgcmMgPSAtRUZBVUxU OworICAgICAgICAgICAgYnJlYWs7CisgICAgICAgIH0KKyAgICAgICAgaWYgKCBjb21wYXQgKQor I2RlZmluZSBYTEFUX2dudHRhYl9zZXR1cF90YWJsZV9ITkRMX2ZyYW1lX2xpc3QoZCwgcykKKyAg ICAgICAgICAgICAgICBYTEFUX2dudHRhYl9zZXR1cF90YWJsZSgmbmF0LCAmY21wKTsKKyN1bmRl ZiBYTEFUX2dudHRhYl9zZXR1cF90YWJsZV9ITkRMX2ZyYW1lX2xpc3QKKworICAgICAgICBuYXQu c3RhdHVzID0gR05UU1Rfb2theTsKKworICAgICAgICBzcGluX2xvY2soJmdyYW50X2xvY2spOwor ICAgICAgICBpZiAoICFucl9ncmFudF9saXN0ICkKKyAgICAgICAgeworICAgICAgICAgICAgc3Ry dWN0IGdudHRhYl9xdWVyeV9zaXplIHF1ZXJ5X3NpemUgPSB7CisgICAgICAgICAgICAgICAgLmRv bSA9IERPTUlEX1NFTEYsCisgICAgICAgICAgICB9OworCisgICAgICAgICAgICByYyA9IHhlbl9o eXBlcmNhbGxfZ3JhbnRfdGFibGVfb3AoR05UVEFCT1BfcXVlcnlfc2l6ZSwKKyAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAmcXVlcnlfc2l6ZSwgMSk7CisgICAg ICAgICAgICBpZiAoIHJjICkKKyAgICAgICAgICAgIHsKKyAgICAgICAgICAgICAgICBzcGluX3Vu bG9jaygmZ3JhbnRfbG9jayk7CisgICAgICAgICAgICAgICAgYnJlYWs7CisgICAgICAgICAgICB9 CisKKyAgICAgICAgICAgIEFTU0VSVCghZ3JhbnRfZnJhbWVzKTsKKyAgICAgICAgICAgIGdyYW50 X2ZyYW1lcyA9IHh6YWxsb2NfYXJyYXkodW5zaWduZWQgbG9uZywKKyAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgcXVlcnlfc2l6ZS5tYXhfbnJfZnJhbWVzKTsKKyAgICAg ICAgICAgIGlmICggIWdyYW50X2ZyYW1lcyApCisgICAgICAgICAgICB7CisgICAgICAgICAgICAg ICAgc3Bpbl91bmxvY2soJmdyYW50X2xvY2spOworICAgICAgICAgICAgICAgIHJjID0gLUVOT01F TTsKKyAgICAgICAgICAgICAgICBicmVhazsKKyAgICAgICAgICAgIH0KKworICAgICAgICAgICAg bnJfZ3JhbnRfbGlzdCA9IHF1ZXJ5X3NpemUubWF4X25yX2ZyYW1lczsKKyAgICAgICAgfQorCisg ICAgICAgIGlmICggbmF0Lm5yX2ZyYW1lcyA+IG5yX2dyYW50X2xpc3QgKQorICAgICAgICB7Cisg ICAgICAgICAgICBzcGluX3VubG9jaygmZ3JhbnRfbG9jayk7CisgICAgICAgICAgICByYyA9IC1F SU5WQUw7CisgICAgICAgICAgICBicmVhazsKKyAgICAgICAgfQorCisgICAgICAgIGZvciAoIGkg PSAwOyBpIDwgbmF0Lm5yX2ZyYW1lczsgaSsrICkKKyAgICAgICAgeworICAgICAgICAgICAgaWYg KCAhZ3JhbnRfZnJhbWVzW2ldICkKKyAgICAgICAgICAgIHsKKyAgICAgICAgICAgICAgICBzdHJ1 Y3QgeGVuX2FkZF90b19waHlzbWFwIHhhdHAgPSB7CisgICAgICAgICAgICAgICAgICAgIC5kb21p ZCA9IERPTUlEX1NFTEYsCisgICAgICAgICAgICAgICAgICAgIC5pZHggPSBpLAorICAgICAgICAg ICAgICAgICAgICAuc3BhY2UgPSBYRU5NQVBTUEFDRV9ncmFudF90YWJsZSwKKyAgICAgICAgICAg ICAgICB9OworICAgICAgICAgICAgICAgIG1mbl90IG1mbjsKKworICAgICAgICAgICAgICAgIHJj ID0gaHlwZXJ2aXNvcl9hbGxvY191bnVzZWRfcGFnZSgmbWZuKTsKKyAgICAgICAgICAgICAgICBp ZiAoIHJjICkKKyAgICAgICAgICAgICAgICB7CisgICAgICAgICAgICAgICAgICAgIGdwcmludGso WEVOTE9HX0VSUiwKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAidW5hYmxlIHRvIGdldCBt ZW1vcnkgZm9yIGdyYW50IHRhYmxlXG4iKTsKKyAgICAgICAgICAgICAgICAgICAgYnJlYWs7Cisg ICAgICAgICAgICAgICAgfQorCisgICAgICAgICAgICAgICAgeGF0cC5ncGZuID0gbWZuX3gobWZu KTsKKyAgICAgICAgICAgICAgICByYyA9IHhlbl9oeXBlcmNhbGxfbWVtb3J5X29wKFhFTk1FTV9h ZGRfdG9fcGh5c21hcCwgJnhhdHApOworICAgICAgICAgICAgICAgIGlmICggcmMgKQorICAgICAg ICAgICAgICAgIHsKKyAgICAgICAgICAgICAgICAgICAgaHlwZXJ2aXNvcl9mcmVlX3VudXNlZF9w YWdlKG1mbik7CisgICAgICAgICAgICAgICAgICAgIGJyZWFrOworICAgICAgICAgICAgICAgIH0K KworICAgICAgICAgICAgICAgIEJVR19PTihpb21lbV9wZXJtaXRfYWNjZXNzKGQsIG1mbl94KG1m biksIG1mbl94KG1mbikpKTsKKyAgICAgICAgICAgICAgICBncmFudF9mcmFtZXNbaV0gPSBtZm5f eChtZm4pOworICAgICAgICAgICAgfQorCisgICAgICAgICAgICBBU1NFUlQoZ3JhbnRfZnJhbWVz W2ldKTsKKyAgICAgICAgICAgIGlmICggY29tcGF0ICkKKyAgICAgICAgICAgIHsKKyAgICAgICAg ICAgICAgICBjb21wYXRfcGZuX3QgcGZuID0gZ3JhbnRfZnJhbWVzW2ldOworCisgICAgICAgICAg ICAgICAgaWYgKCBfX2NvcHlfdG9fY29tcGF0X29mZnNldChjbXAuZnJhbWVfbGlzdCwgaSwgJnBm biwgMSkgKQorICAgICAgICAgICAgICAgIHsKKyAgICAgICAgICAgICAgICAgICAgbmF0LnN0YXR1 cyA9IEdOVFNUX2JhZF92aXJ0X2FkZHI7CisgICAgICAgICAgICAgICAgICAgIHJjID0gLUVGQVVM VDsKKyAgICAgICAgICAgICAgICAgICAgYnJlYWs7CisgICAgICAgICAgICAgICAgfQorICAgICAg ICAgICAgfQorICAgICAgICAgICAgZWxzZSBpZiAoIF9fY29weV90b19ndWVzdF9vZmZzZXQobmF0 LmZyYW1lX2xpc3QsIGksCisgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAmZ3JhbnRfZnJhbWVzW2ldLCAxKSApCisgICAgICAgICAgICB7CisgICAgICAgICAgICAg ICAgbmF0LnN0YXR1cyA9IEdOVFNUX2JhZF92aXJ0X2FkZHI7CisgICAgICAgICAgICAgICAgcmMg PSAtRUZBVUxUOworICAgICAgICAgICAgICAgIGJyZWFrOworICAgICAgICAgICAgfQorICAgICAg ICB9CisgICAgICAgIHNwaW5fdW5sb2NrKCZncmFudF9sb2NrKTsKKworICAgICAgICBpZiAoIGNv bXBhdCApCisjZGVmaW5lIFhMQVRfZ250dGFiX3NldHVwX3RhYmxlX0hORExfZnJhbWVfbGlzdChk LCBzKQorICAgICAgICAgICAgICAgIFhMQVRfZ250dGFiX3NldHVwX3RhYmxlKCZjbXAsICZuYXQp OworI3VuZGVmIFhMQVRfZ250dGFiX3NldHVwX3RhYmxlX0hORExfZnJhbWVfbGlzdAorCisgICAg ICAgIGlmICggdW5saWtlbHkoY29tcGF0ID8gX19jb3B5X3RvX2d1ZXN0KHVvcCwgJmNtcCwgMSkK KyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgOiBfX2NvcHlfdG9fZ3Vlc3QodW9wLCAmbmF0 LCAxKSkgKQorICAgICAgICB7CisgICAgICAgICAgICByYyA9IC1FRkFVTFQ7CisgICAgICAgICAg ICBicmVhazsKKyAgICAgICAgfQorCisgICAgICAgIGJyZWFrOworICAgIH0KKworICAgIGNhc2Ug R05UVEFCT1BfcXVlcnlfc2l6ZToKKyAgICAgICAgcmMgPSB4ZW5faHlwZXJjYWxsX2dyYW50X3Rh YmxlX29wKEdOVFRBQk9QX3F1ZXJ5X3NpemUsIHVvcC5wLCBjb3VudCk7CisgICAgICAgIGJyZWFr OworCisgICAgZGVmYXVsdDoKKyAgICAgICAgcmMgPSAtRU9QTk9UU1VQUDsKKyAgICAgICAgYnJl YWs7CisgICAgfQorCisgICAgcmV0dXJuIHJjOworfQorCiBkb21pZF90IGdldF9pbml0aWFsX2Rv bWFpbl9pZCh2b2lkKQogewogICAgIHVpbnQzMl90IGVheCwgZWJ4LCBlY3gsIGVkeDsKZGlmZiAt LWdpdCBhL3hlbi9pbmNsdWRlL2FzbS14ODYvZ3Vlc3QvaHlwZXJjYWxsLmggYi94ZW4vaW5jbHVk ZS9hc20teDg2L2d1ZXN0L2h5cGVyY2FsbC5oCmluZGV4IDgxYTk1NWQ0NzkuLmU5ZTYyNmI0NzQg MTAwNjQ0Ci0tLSBhL3hlbi9pbmNsdWRlL2FzbS14ODYvZ3Vlc3QvaHlwZXJjYWxsLmgKKysrIGIv eGVuL2luY2x1ZGUvYXNtLXg4Ni9ndWVzdC9oeXBlcmNhbGwuaApAQCAtMTEwLDYgKzExMCwxMiBA QCBzdGF0aWMgaW5saW5lIGxvbmcgeGVuX2h5cGVyY2FsbF9ldmVudF9jaGFubmVsX29wKHVuc2ln bmVkIGludCBjbWQsIHZvaWQgKmFyZykKICAgICByZXR1cm4gX2h5cGVyY2FsbDY0XzIobG9uZywg X19IWVBFUlZJU09SX2V2ZW50X2NoYW5uZWxfb3AsIGNtZCwgYXJnKTsKIH0KIAorc3RhdGljIGlu bGluZSBsb25nIHhlbl9oeXBlcmNhbGxfZ3JhbnRfdGFibGVfb3AodW5zaWduZWQgaW50IGNtZCwg dm9pZCAqYXJnLAorICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgdW5zaWduZWQgaW50IGNvdW50KQoreworICAgIHJldHVybiBfaHlwZXJjYWxsNjRfMyhsb25n LCBfX0hZUEVSVklTT1JfZ3JhbnRfdGFibGVfb3AsIGNtZCwgYXJnLCBjb3VudCk7Cit9CisKIHN0 YXRpYyBpbmxpbmUgbG9uZyB4ZW5faHlwZXJjYWxsX2h2bV9vcCh1bnNpZ25lZCBpbnQgb3AsIHZv aWQgKmFyZykKIHsKICAgICByZXR1cm4gX2h5cGVyY2FsbDY0XzIobG9uZywgX19IWVBFUlZJU09S X2h2bV9vcCwgb3AsIGFyZyk7Ci0tIAoyLjExLjAKCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBs aXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4v bGlzdGluZm8veGVuLWRldmVs