From mboxrd@z Thu Jan 1 00:00:00 1970 From: He Chen Subject: [PATCH] xen: enable/disable SMAP/SMEP for Xen itself Date: Tue, 9 Aug 2016 17:13:59 +0800 Message-ID: <1470734039-15758-2-git-send-email-he.chen@linux.intel.com> References: <1470734039-15758-1-git-send-email-he.chen@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1470734039-15758-1-git-send-email-he.chen@linux.intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich , Andrew Cooper Cc: Wu Feng , Wang Yong , Nakajima Jun , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org U01BUC9TTUVQIG1heSBhZmZlY3QgdGhlIDMyLWJpdCBwdiBndWVzdHMuClVzZXJzIGNhbiBkZXRl cm1pbmUgd2hldGhlciB0dXJuIFNNQVAvU01FUCBvbiBmb3IgWGVuIGh5cGVydmlvc3Igd2hlbgpy dW5uaW5nIDMyLWJpdCBwdiBndWVzdHMuCgpTaWduZWQtb2ZmLWJ5OiBIZSBDaGVuIDxoZS5jaGVu QGxpbnV4LmludGVsLmNvbT4KLS0tCiBkb2NzL21pc2MveGVuLWNvbW1hbmQtbGluZS5tYXJrZG93 biB8IDE0ICsrKysrKysrKysrKysrCiB4ZW4vYXJjaC94ODYvc2V0dXAuYyAgICAgICAgICAgICAg ICB8IDEyICsrKysrKysrKystLQogMiBmaWxlcyBjaGFuZ2VkLCAyNCBpbnNlcnRpb25zKCspLCAy IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RvY3MvbWlzYy94ZW4tY29tbWFuZC1saW5lLm1h cmtkb3duIGIvZG9jcy9taXNjL3hlbi1jb21tYW5kLWxpbmUubWFya2Rvd24KaW5kZXggM2EyNTBj Yi4uYTQ4YzRhYSAxMDA2NDQKLS0tIGEvZG9jcy9taXNjL3hlbi1jb21tYW5kLWxpbmUubWFya2Rv d24KKysrIGIvZG9jcy9taXNjL3hlbi1jb21tYW5kLWxpbmUubWFya2Rvd24KQEAgLTE0MzQsNiAr MTQzNCwxMyBAQCBTZXQgdGhlIHNlcmlhbCB0cmFuc21pdCBidWZmZXIgc2l6ZS4KIAogRmxhZyB0 byBlbmFibGUgU3VwZXJ2aXNvciBNb2RlIEV4ZWN1dGlvbiBQcm90ZWN0aW9uCiAKKyMjIyB4ZW5f c21lcAorPiBgPSA8Ym9vbGVhbj5gCisKKz4gRGVmYXVsdDogYHRydWVgCisKK0ZsYWcgdG8gZW5h YmxlIFNNRVAgZm9yIFhlbiBpdHNlbGYKKwogIyMjIHNtYXAKID4gYD0gPGJvb2xlYW4+YAogCkBA IC0xNDQxLDYgKzE0NDgsMTMgQEAgRmxhZyB0byBlbmFibGUgU3VwZXJ2aXNvciBNb2RlIEV4ZWN1 dGlvbiBQcm90ZWN0aW9uCiAKIEZsYWcgdG8gZW5hYmxlIFN1cGVydmlzb3IgTW9kZSBBY2Nlc3Mg UHJldmVudGlvbgogCisjIyMgeGVuX3NtYXAKKz4gYD0gPGJvb2xlYW4+YAorCis+IERlZmF1bHQ6 IGB0cnVlYAorCitGbGFnIHRvIGVuYWJsZSBTTUFQIGZvciBYZW4gaXRzZWxmCisKICMjIyBzbmJc X2lnZFxfcXVpcmsKID4gYD0gPGJvb2xlYW4+IHwgY2FwIHwgPGludGVnZXI+YAogCmRpZmYgLS1n aXQgYS94ZW4vYXJjaC94ODYvc2V0dXAuYyBiL3hlbi9hcmNoL3g4Ni9zZXR1cC5jCmluZGV4IDIx N2M3NzUuLjg0ZGViYzMgMTAwNjQ0Ci0tLSBhL3hlbi9hcmNoL3g4Ni9zZXR1cC5jCisrKyBiL3hl bi9hcmNoL3g4Ni9zZXR1cC5jCkBAIC02NSwxMCArNjUsMTggQEAgaW50ZWdlcl9wYXJhbSgibWF4 Y3B1cyIsIG1heF9jcHVzKTsKIHN0YXRpYyBib29sX3QgX19pbml0ZGF0YSBvcHRfc21lcCA9IDE7 CiBib29sZWFuX3BhcmFtKCJzbWVwIiwgb3B0X3NtZXApOwogCisvKiB4ZW5fc21lcDogRW5hYmxl L2Rpc2FibGUgU01FUCBmb3IgWGVuIGl0c2VsZiAoZGVmYXVsdCBvbikuICovCitzdGF0aWMgYm9v bF90IF9faW5pdGRhdGEgb3B0X3hlbl9zbWVwID0gMTsKK2Jvb2xlYW5fcGFyYW0oInhlbl9zbWVw Iiwgb3B0X3hlbl9zbWVwKTsKKwogLyogc21hcDogRW5hYmxlL2Rpc2FibGUgU3VwZXJ2aXNvciBN b2RlIEFjY2VzcyBQcmV2ZW50aW9uIChkZWZhdWx0IG9uKS4gKi8KIHN0YXRpYyBib29sX3QgX19p bml0ZGF0YSBvcHRfc21hcCA9IDE7CiBib29sZWFuX3BhcmFtKCJzbWFwIiwgb3B0X3NtYXApOwog CisvKiB4ZW5fc21hcDogRW5hYmxlL2Rpc2FibGUgU01BUCBmb3IgWGVuIGl0c2VsZiAoZGVmYXVs dCBvbikuICovCitzdGF0aWMgYm9vbF90IF9faW5pdGRhdGEgb3B0X3hlbl9zbWFwID0gMTsKK2Jv b2xlYW5fcGFyYW0oInhlbl9zbWFwIiwgb3B0X3hlbl9zbWFwKTsKKwogdW5zaWduZWQgbG9uZyBf X3JlYWRfbW9zdGx5IGNyNF9wdjMyX21hc2s7CiAKIC8qIEJvb3QgZG9tMCBpbiBwdmggbW9kZSAq LwpAQCAtMTQwMywxMiArMTQxMSwxMiBAQCB2b2lkIF9faW5pdCBub3JldHVybiBfX3N0YXJ0X3hl bih1bnNpZ25lZCBsb25nIG1iaV9wKQogCiAgICAgaWYgKCAhb3B0X3NtZXAgKQogICAgICAgICBz ZXR1cF9jbGVhcl9jcHVfY2FwKFg4Nl9GRUFUVVJFX1NNRVApOwotICAgIGlmICggY3B1X2hhc19z bWVwICkKKyAgICBpZiAoIGNwdV9oYXNfc21lcCAmJiBvcHRfeGVuX3NtZXAgKQogICAgICAgICBz ZXRfaW5fY3I0KFg4Nl9DUjRfU01FUCk7CiAKICAgICBpZiAoICFvcHRfc21hcCApCiAgICAgICAg IHNldHVwX2NsZWFyX2NwdV9jYXAoWDg2X0ZFQVRVUkVfU01BUCk7Ci0gICAgaWYgKCBjcHVfaGFz X3NtYXAgKQorICAgIGlmICggY3B1X2hhc19zbWFwICYmIG9wdF94ZW5fc21hcCApCiAgICAgICAg IHNldF9pbl9jcjQoWDg2X0NSNF9TTUFQKTsKIAogICAgIGNyNF9wdjMyX21hc2sgPSBtbXVfY3I0 X2ZlYXR1cmVzICYgWEVOX0NSNF9QVjMyX0JJVFM7Ci0tIAoxLjkuMQoKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QK WGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=