From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH] xen/x86: Remap text/data/bss with appropriate permissions Date: Thu, 17 Mar 2016 14:44:52 +0000 Message-ID: <56EAC2E4.7040303@citrix.com> References: <1458218596-23847-1-git-send-email-andrew.cooper3@citrix.com> <56EACDC102000078000DDF03@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: <56EACDC102000078000DDF03@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: Xen-devel List-Id: xen-devel@lists.xenproject.org T24gMTcvMDMvMTYgMTQ6MzEsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDE3LjAzLjE2IGF0 IDEzOjQzLCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3JvdGU6Cj4+IC0tLSBhL3hlbi9h cmNoL3g4Ni9zZXR1cC5jCj4+ICsrKyBiL3hlbi9hcmNoL3g4Ni9zZXR1cC5jCj4+IEBAIC01Mjks OSArNTI5LDMzIEBAIHN0YXRpYyB2b2lkIG5vaW5saW5lIGluaXRfZG9uZSh2b2lkKQo+PiAgICAg IH0KPj4gICAgICBlbHNlCj4+ICAgICAgewo+PiArICAgICAgICAvKiBNYXJrIC50ZXh0IGFzIFJY IChhdm9pZGluZyB0aGUgZmlyc3QgMk0gc3VwZXJwYWdlKS4gKi8KPj4gKyAgICAgICAgbWFwX3Bh Z2VzX3RvX3hlbihYRU5fVklSVF9TVEFSVCArIE1CKDIpLAo+PiArICAgICAgICAgICAgICAgICAg ICAgICAgIFBGTl9ET1dOKF9fcGEoWEVOX1ZJUlRfU1RBUlQgKyBNQigyKSkpLAo+PiArICAgICAg ICAgICAgICAgICAgICAgICAgIFBGTl9ET1dOKF9fMk1fdGV4dF9lbmQgLQo+PiArICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgIChjb25zdCBjaGFyICopKFhFTl9WSVJUX1NUQVJUICsg TUIoMikpKSwKPj4gKyAgICAgICAgICAgICAgICAgICAgICAgICBQQUdFX0hZUEVSVklTT1JfUlgp Owo+PiArCj4+ICsgICAgICAgIC8qIE1hcmsgLnJvZGF0YSBhcyBSTy4gKi8KPj4gKyAgICAgICAg bWFwX3BhZ2VzX3RvX3hlbigodW5zaWduZWQgbG9uZykmX18yTV9yb2RhdGFfc3RhcnQsCj4+ICsg ICAgICAgICAgICAgICAgICAgICAgICAgUEZOX0RPV04oX19wYShfXzJNX3JvZGF0YV9zdGFydCkp LAo+PiArICAgICAgICAgICAgICAgICAgICAgICAgIFBGTl9ET1dOKF9fMk1fcm9kYXRhX2VuZCAt IF9fMk1fcm9kYXRhX3N0YXJ0KSwKPj4gKyAgICAgICAgICAgICAgICAgICAgICAgICBQQUdFX0hZ UEVSVklTT1JfUk8pOwo+PiArCj4+ICsgICAgICAgIC8qIEZyZWUgYW5kIHJldXNlIC5pbml0LiAq Lwo+PiAgICAgICAgICBkZXN0cm95X3hlbl9tYXBwaW5ncygodW5zaWduZWQgbG9uZykmX19pbml0 X2JlZ2luLAo+PiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAodW5zaWduZWQgbG9uZykm X19pbml0X2VuZCk7Cj4+ICAgICAgICAgIGluaXRfeGVuaGVhcF9wYWdlcyhfX3BhKF9faW5pdF9i ZWdpbiksIF9fcGEoX19pbml0X2VuZCkpOwo+PiArCj4+ICsgICAgICAgIC8qIE1hcmsgLmRhdGEg YW5kIC5ic3MgYXMgUlcuICovCj4+ICsgICAgICAgIG1hcF9wYWdlc190b194ZW4oKHVuc2lnbmVk IGxvbmcpJl9fMk1fcndkYXRhX3N0YXJ0LAo+PiArICAgICAgICAgICAgICAgICAgICAgICAgIFBG Tl9ET1dOKF9fcGEoX18yTV9yd2RhdGFfc3RhcnQpKSwKPj4gKyAgICAgICAgICAgICAgICAgICAg ICAgICBQRk5fRE9XTihfXzJNX3J3ZGF0YV9lbmQgLSBfXzJNX3J3ZGF0YV9zdGFydCksCj4+ICsg ICAgICAgICAgICAgICAgICAgICAgICAgUEFHRV9IWVBFUlZJU09SX1JXKTsKPj4gKwo+PiArICAg ICAgICAvKiBEcm9wIHRoZSByZW1haW5pbmcgbWFwcGluZ3MgaW4gdGhlIHNoYXR0ZXJlZCBzdXBl cnBhZ2UuICovCj4+ICsgICAgICAgIGRlc3Ryb3lfeGVuX21hcHBpbmdzKCh1bnNpZ25lZCBsb25n KSZfXzJNX3J3ZGF0YV9lbmQsCj4+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFJPVU5E VVAoKHVuc2lnbmVkIGxvbmcpJl9fMk1fcndkYXRhX2VuZCwgTUIoMikpKTsKPj4gICAgICB9Cj4g SSB0aGluayB0aGlzIHdvdWxkIGJlIG1vcmUgYXBwcm9wcmlhdGUgdG8gYWRkIHRvIHNvbWUgX19p bml0Cj4gZnVuY3Rpb24gKHdoaWNoIHRoZSBkaXNjYXJkaW5nIG9mIC5pbml0LiogbmF0dXJhbGx5 IGNhbid0IGxpdmUgaW4pLgoKSSB3aWxsIHNlZSBpZiBJIGNhbiBwdWxsIGl0IGZvcndhcmRzIHRv IGp1c3QgYWZ0ZXIgdGhlIHJlbG9jYXRpb24sIHRvIGJlCmFzIGNsb3NlIHRvIHRoZSBwZXJtaXNz aW9ucyBjaGFuZ2UgaW4gdGhlIDJNIGNhc2UgYXMgcG9zc2libGUuCgo+Cj4gQWxzbyAtIGRvIHdl IHJlYWxseSB3YW50IHRvIG1ha2UgdGhpcyBjb2RlIGRlcGVuZGVudCBvbgo+IG1hcF9wYWdlc190 b194ZW4oKSBub3QgaW50ZXJtZWRpYXRlbHkgemFwcGluZyB0aGUgbWFwcGluZ3MKPiBiZWluZyBj aGFuZ2VkPwoKRG8geW91IG1lYW4gImltbWVkaWF0ZWx5Ij8KCkFzIGZhciBhcyBJIGNhbiB0ZWxs LCBpdCBpcyBndWFyYW50ZWVkIHRvIGJlIHNhZmUsIGV2ZW4gd2hlbiByZW1hcHBpbmcKdGhlIGNv ZGUgc2VjdGlvbi4gIFVwZGF0ZXMgdG8gdGhlIGxpdmUgcGFnZXRhYmxlcyBhcmUgdXNpbmcgYXRv bWljCndyaXRlcywgYW5kIEkgZGlkbid0IHNwb3QgYSBwb2ludCB3aGljaCB3b3VsZCBlbmQgdXAg d2l0aCBhIHRyYW5zaWVudApub24tcHJlc2VudCBtYXBwaW5nLgoKfkFuZHJldwoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcg bGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2 ZWwK