From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: [PATCH 1/6] x86/cpuid: Hide VT-x/SVM from HVM-based control domains Date: Wed, 18 Jan 2017 19:40:53 +0000 Message-ID: <1484768458-13117-2-git-send-email-andrew.cooper3@citrix.com> References: <1484768458-13117-1-git-send-email-andrew.cooper3@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1484768458-13117-1-git-send-email-andrew.cooper3@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Xen-devel Cc: Andrew Cooper , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= List-Id: xen-devel@lists.xenproject.org VGhlIFZULXgvU1ZNIGZlYXR1cmVzIGFyZSBoaWRkZW4gZnJvbSBQViBkb20wIGJ5IHRoZSBwdl9m ZWF0dXJlc2V0W10gdXBwZXIKbWFzaywgYnV0IG5vdGhpbmcgdGh1c2ZhciBoYXMgcHJldmVudGVk IHRoZSBmZWF0dXJlcyBiZWluZyB2aXNpYmxlIGluCkhWTS1iYXNlZCBjb250cm9sIGRvbWFpbnMg KHdoZXJlIHRoZXJlIGlzIG5vIHRvb2xzdGFjayBkZWNpc2lvbiB0byBoaWRlIHRoZQpmZWF0dXJl cykuCgpBcyBhIHNpZGUgZWZmZWN0IG9mIGNhbGxpbmcgbmVzdGVkaHZtX2VuYWJsZWQoKSBlYXJs aWVyIGR1cmluZyBkb21haW4KY3JlYXRpb24sIGl0IG5lZWRzIHRvIGNvcGUgd2l0aCB0aGUgcGFy YW1zW10gYXJyYXkgYXJyYXkgbm90IGhhdmluZyBiZWVuCmFsbG9jYXRlZC4KClJlcG9ydGVkLWJ5 OiBSb2dlciBQYXUgTW9ubsOpIDxyb2dlci5wYXVAY2l0cml4LmNvbT4KU2lnbmVkLW9mZi1ieTog QW5kcmV3IENvb3BlciA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4KLS0tCkNDOiBKYW4gQmV1 bGljaCA8SkJldWxpY2hAc3VzZS5jb20+CkNDOiBSb2dlciBQYXUgTW9ubsOpIDxyb2dlci5wYXVA Y2l0cml4LmNvbT4KLS0tCiB4ZW4vYXJjaC94ODYvY3B1aWQuYyAgICAgICAgIHwgMjUgKysrKysr KysrKysrKysrKysrLS0tLS0tLQogeGVuL2FyY2gveDg2L2h2bS9uZXN0ZWRodm0uYyB8ICAzICsr LQogMiBmaWxlcyBjaGFuZ2VkLCAyMCBpbnNlcnRpb25zKCspLCA4IGRlbGV0aW9ucygtKQoKZGlm ZiAtLWdpdCBhL3hlbi9hcmNoL3g4Ni9jcHVpZC5jIGIveGVuL2FyY2gveDg2L2NwdWlkLmMKaW5k ZXggZWI4MjlkNy4uN2I5YWYxYiAxMDA2NDQKLS0tIGEveGVuL2FyY2gveDg2L2NwdWlkLmMKKysr IGIveGVuL2FyY2gveDg2L2NwdWlkLmMKQEAgLTMsNiArMyw3IEBACiAjaW5jbHVkZSA8eGVuL3Nj aGVkLmg+CiAjaW5jbHVkZSA8YXNtL2NwdWlkLmg+CiAjaW5jbHVkZSA8YXNtL2h2bS9odm0uaD4K KyNpbmNsdWRlIDxhc20vaHZtL25lc3RlZGh2bS5oPgogI2luY2x1ZGUgPGFzbS9odm0vdm14L3Zt Y3MuaD4KICNpbmNsdWRlIDxhc20vcHJvY2Vzc29yLmg+CiAjaW5jbHVkZSA8YXNtL3hzdGF0ZS5o PgpAQCAtMzYxLDE0ICszNjIsMjQgQEAgdm9pZCByZWNhbGN1bGF0ZV9jcHVpZF9wb2xpY3koc3Ry dWN0IGRvbWFpbiAqZCkKICAgICBjcHVpZF9wb2xpY3lfdG9fZmVhdHVyZXNldChwLCBmcyk7CiAg ICAgY3B1aWRfcG9saWN5X3RvX2ZlYXR1cmVzZXQobWF4LCBtYXhfZnMpOwogCi0gICAgLyoKLSAg ICAgKiBIVk0gZG9tYWlucyB1c2luZyBTaGFkb3cgcGFnaW5nIGhhdmUgZnVydGhlciByZXN0cmlj dGlvbnMgb24gdGhlaXIKLSAgICAgKiBhdmFpbGFibGUgcGFnaW5nIGZlYXR1cmVzLgotICAgICAq LwotICAgIGlmICggaXNfaHZtX2RvbWFpbihkKSAmJiAhaGFwX2VuYWJsZWQoZCkgKQorICAgIGlm ICggaXNfaHZtX2RvbWFpbihkKSApCiAgICAgewotICAgICAgICBmb3IgKCBpID0gMDsgaSA8IEFS UkFZX1NJWkUobWF4X2ZzKTsgaSsrICkKLSAgICAgICAgICAgIG1heF9mc1tpXSAmPSBodm1fc2hh ZG93X2ZlYXR1cmVtYXNrW2ldOworICAgICAgICAvKgorICAgICAgICAgKiBIVk0gZG9tYWlucyB1 c2luZyBTaGFkb3cgcGFnaW5nIGhhdmUgZnVydGhlciByZXN0cmljdGlvbnMgb24gdGhlaXIKKyAg ICAgICAgICogYXZhaWxhYmxlIHBhZ2luZyBmZWF0dXJlcy4KKyAgICAgICAgICovCisgICAgICAg IGlmICggIWhhcF9lbmFibGVkKGQpICkKKyAgICAgICAgeworICAgICAgICAgICAgZm9yICggaSA9 IDA7IGkgPCBBUlJBWV9TSVpFKG1heF9mcyk7IGkrKyApCisgICAgICAgICAgICAgICAgbWF4X2Zz W2ldICY9IGh2bV9zaGFkb3dfZmVhdHVyZW1hc2tbaV07CisgICAgICAgIH0KKworICAgICAgICAv KiBIaWRlIG5lc3RlZC12aXJ0IGlmIGl0IGhhc24ndCBiZWVuIGV4cGxpY2l0bHkgY29uZmlndXJl ZC4gKi8KKyAgICAgICAgaWYgKCAhbmVzdGVkaHZtX2VuYWJsZWQoZCkgKQorICAgICAgICB7Cisg ICAgICAgICAgICBfX2NsZWFyX2JpdChYODZfRkVBVFVSRV9WTVgsIG1heF9mcyk7CisgICAgICAg ICAgICBfX2NsZWFyX2JpdChYODZfRkVBVFVSRV9TVk0sIG1heF9mcyk7CisgICAgICAgIH0KICAg ICB9CiAKICAgICAvKgpkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2L2h2bS9uZXN0ZWRodm0uYyBi L3hlbi9hcmNoL3g4Ni9odm0vbmVzdGVkaHZtLmMKaW5kZXggYTQwMGQ1NS4uZjJmNzQ2OSAxMDA2 NDQKLS0tIGEveGVuL2FyY2gveDg2L2h2bS9uZXN0ZWRodm0uYworKysgYi94ZW4vYXJjaC94ODYv aHZtL25lc3RlZGh2bS5jCkBAIC0yOSw3ICsyOSw4IEBAIHN0YXRpYyB1bnNpZ25lZCBsb25nICpz aGFkb3dfaW9fYml0bWFwWzNdOwogLyogTmVzdGVkIEhWTSBvbi9vZmYgcGVyIGRvbWFpbiAqLwog Ym9vbCBuZXN0ZWRodm1fZW5hYmxlZChjb25zdCBzdHJ1Y3QgZG9tYWluICpkKQogewotICAgIHJl dHVybiBpc19odm1fZG9tYWluKGQpICYmIGQtPmFyY2guaHZtX2RvbWFpbi5wYXJhbXNbSFZNX1BB UkFNX05FU1RFREhWTV07CisgICAgcmV0dXJuIGlzX2h2bV9kb21haW4oZCkgJiYgZC0+YXJjaC5o dm1fZG9tYWluLnBhcmFtcyAmJgorICAgICAgICBkLT5hcmNoLmh2bV9kb21haW4ucGFyYW1zW0hW TV9QQVJBTV9ORVNURURIVk1dOwogfQogCiAvKiBOZXN0ZWQgVkNQVSAqLwotLSAKMi4xLjQKCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwg bWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK