From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH v7.1 07/24] x86/mm: Introduce modify_xen_mappings() Date: Mon, 11 Apr 2016 18:33:10 +0100 Message-ID: <570BDFD6.5000603@citrix.com> References: <1460383444-4492-1-git-send-email-andrew.cooper3@citrix.com> <570BEA7E02000078000E642A@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <570BEA7E02000078000E642A@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: George Dunlap , Xen-devel List-Id: xen-devel@lists.xenproject.org T24gMTEvMDQvMTYgMTg6MTgsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDExLjA0LjE2IGF0 IDE2OjA0LCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3JvdGU6Cj4+IEBAIC01OTY0LDYg KzU5NzYsMTAgQEAgdm9pZCBkZXN0cm95X3hlbl9tYXBwaW5ncyh1bnNpZ25lZCBsb25nIHMsIHVu c2lnbmVkIGxvbmcgZSkKPj4gICAgICB1bnNpZ25lZCBpbnQgIGk7Cj4+ICAgICAgdW5zaWduZWQg bG9uZyB2ID0gczsKPj4gIAo+PiArICAgIC8qIFNldCBvZiB2YWxpZCBQVEUgYml0cyB3aGljaCBt YXkgYmUgYWx0ZXJlZC4gKi8KPj4gKyNkZWZpbmUgRkxBR1NfTUFTSyAoX1BBR0VfTlh8X1BBR0Vf Uld8X1BBR0VfUFJFU0VOVCkKPj4gKyAgICBuZiAmPSBGTEFHU19NQVNLOwo+IFdoaWxlIHdlIGRv bid0IG5lZWQgaXQgcmlnaHQgYXdheSwgSSB0aGluayBpbmNsdWRpbmcgX1BBR0VfVVNFUgo+IGhl cmUgd291bGQgYmUgcXVpdGUgZmluZS4KCkkgY29uc2lkZXJlZCB0aGF0LiAgVW50aWwgd2UgaGF2 ZSBhIHZhbGlkIHVzZSBmb3IgZG9pbmcgc28sIEkgY2hvc2Ugbm90CnRvIGdpdmUgcGVvcGxlIHRo ZSBvcHBvcnR1bml0eSB0byBzaG9vdCB0aGVtc2VsdmVzIGluIHRoZSBmb290LgoKPgo+PiBAQCAt NjA1NSwxMyArNjA4NSwyMyBAQCB2b2lkIGRlc3Ryb3lfeGVuX21hcHBpbmdzKHVuc2lnbmVkIGxv bmcgcywgdW5zaWduZWQgbG9uZyBlKQo+PiAgICAgICAgICB9Cj4+ICAgICAgICAgIGVsc2UKPj4g ICAgICAgICAgewo+PiArICAgICAgICAgICAgbDFfcGdlbnRyeV90IG5sMWU7Cj4+ICsKPj4gICAg ICAgICAgICAgIC8qIE9yZGluYXJ5IDRrQiBtYXBwaW5nLiAqLwo+PiAgICAgICAgICAgICAgcGwx ZSA9IGwyZV90b19sMWUoKnBsMmUpICsgbDFfdGFibGVfb2Zmc2V0KHYpOwo+PiAtICAgICAgICAg ICAgbDFlX3dyaXRlX2F0b21pYyhwbDFlLCBsMWVfZW1wdHkoKSk7Cj4+ICsKPj4gKyAgICAgICAg ICAgIG5sMWUgPSAhKG5mICYgX1BBR0VfUFJFU0VOVCkgPyBsMWVfZW1wdHkoKQo+PiArICAgICAg ICAgICAgICAgIDogbDFlX2Zyb21fcGZuKGwxZV9nZXRfcGZuKCpwbDFlKSwKPj4gKyAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAobDFlX2dldF9mbGFncygqcGwxZSkgJiB+RkxBR1NfTUFT SykgfCBuZik7Cj4+ICsKPj4gKyAgICAgICAgICAgIGwxZV93cml0ZV9hdG9taWMocGwxZSwgbmwx ZSk7Cj4gVXAgaW4gdGhlIDJNIGFuZCAxRyBzdXBlciBwYWdlIG1vZGlmaWNhdGlvbiBsb2dpYyB5 b3UgY2hlY2sgd2UncmUKPiBub3QgY3JlYXRpbmcgYSBuZXcgbWFwcGluZyAtIHdoeSBub3QgaGVy ZSwgdG9vPwoKR29vZCBwb2ludC4gIEkgd2lsbCBhZGQgb25lLiAgKEkgZGlkIGhhdmUgb25lIG9y aWduYWxseSwgYW5kIGl0IGdvdCBsb3N0CnRocm91Z2ggYSBjb3VwbGUgb2YgcmVmYWN0b3JzLikK Cj4KPj4gICAgICAgICAgICAgIHYgKz0gUEFHRV9TSVpFOwo+PiAgCj4+IC0gICAgICAgICAgICAv KiBJZiB3ZSBhcmUgZG9uZSB3aXRoIHRoZSBMMkUsIGNoZWNrIGlmIGl0IGlzIG5vdyBlbXB0eS4g Ki8KPj4gLSAgICAgICAgICAgIGlmICggKHYgIT0gZSkgJiYgKGwxX3RhYmxlX29mZnNldCh2KSAh PSAwKSApCj4+ICsgICAgICAgICAgICAvKgo+PiArICAgICAgICAgICAgICogSWYgd2UgYXJlIGRl c3Ryb3lpbmcgbWFwcGluZ3MgYW5kIGRvbmUgd2l0aCB0aGUgTDJFLCBjaGVjayBpZgo+PiArICAg ICAgICAgICAgICogaXQgaXMgbm93IGVtcHR5Lgo+PiArICAgICAgICAgICAgICovCj4+ICsgICAg ICAgICAgICBpZiAoIChuZiAmIF9QQUdFX1BSRVNFTlQpICYmICh2ICE9IGUpICYmIChsMV90YWJs ZV9vZmZzZXQodikgIT0gMCkgKQo+PiAgICAgICAgICAgICAgICAgIGNvbnRpbnVlOwo+IERvZXNu J3QgdGhpcyBuZWVkIHRvIGJlCj4KPiAgICAgICAgICAgICBpZiAoIChuZiAmIF9QQUdFX1BSRVNF TlQpIHx8ICgodiAhPSBlKSAmJiBsMV90YWJsZV9vZmZzZXQodikpICkKPgo+ID8KCkl0IHNob3Vs ZC4gIE9uIGZ1cnRoZXIgY29uc2lkZXJhdGlvbiwgSSBhbSBhbHNvIGdvaW5nIHRvIGludmVydCB0 aGUKc2Vuc2Ugb2YgdGhlIGNvbW1lbnQsIHRvIG1hdGNoIHRoZSBjb2RlLgoKfkFuZHJldwoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1h aWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94 ZW4tZGV2ZWwK