From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: [PATCH v2 12/14] x86/cpufeatures: Hide Instruction Based Sampling from guests Date: Mon, 23 Jan 2017 14:39:15 +0000 Message-ID: <1485182357-18031-13-git-send-email-andrew.cooper3@citrix.com> References: <1485182357-18031-1-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: <1485182357-18031-1-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 List-Id: xen-devel@lists.xenproject.org WGVuIGFkdmVydGlzZXMgdGhlIElCUyBmZWF0dXJlIGZsYWcgdG8gZ3Vlc3RzIG9uIGNhcGFibGUg QU1EIGhhcmR3YXJlLgpIb3dldmVyLCB0aGUgUFYgcGF0aCBpbiBYZW4sIGFuZCBib3RoIHRoZSBQ ViBhbmQgSFZNIHBhdGhzIGluIGxpYnhjCmRlbGliZXJhdGVseSBjbG9iYmVyIHRoZSBJQlMgQ1BV SUQgbGVhZi4KCkZ1cnRoZXJtb3JlLCBYZW4gaGFzIG5vdGhpbmcgcHJvdmlkaW5nIGFuIGltcGxl bWVudGF0aW9uIG9mIHRoZSBJQlMgTVNScywgc28KZ3Vlc3RzIGNhbid0IGFjdHVhbGx5IHVzZSB0 aGUgZmVhdHVyZSBhdCBhbGwuCgpTaWduZWQtb2ZmLWJ5OiBBbmRyZXcgQ29vcGVyIDxhbmRyZXcu Y29vcGVyM0BjaXRyaXguY29tPgotLS0KQ0M6IEphbiBCZXVsaWNoIDxKQmV1bGljaEBzdXNlLmNv bT4KCnYyOgogKiBOZXcKLS0tCiB4ZW4vYXJjaC94ODYvY3B1aWQuYyAgICAgICAgICAgICAgICAg ICAgICAgIHwgOSArKysrKy0tLS0KIHhlbi9pbmNsdWRlL3B1YmxpYy9hcmNoLXg4Ni9jcHVmZWF0 dXJlc2V0LmggfCAyICstCiAyIGZpbGVzIGNoYW5nZWQsIDYgaW5zZXJ0aW9ucygrKSwgNSBkZWxl dGlvbnMoLSkKCmRpZmYgLS1naXQgYS94ZW4vYXJjaC94ODYvY3B1aWQuYyBiL3hlbi9hcmNoL3g4 Ni9jcHVpZC5jCmluZGV4IGM3NWJhMzEuLmI5ZGNjNzEgMTAwNjQ0Ci0tLSBhL3hlbi9hcmNoL3g4 Ni9jcHVpZC5jCisrKyBiL3hlbi9hcmNoL3g4Ni9jcHVpZC5jCkBAIC0yMTEsNiArMjExLDggQEAg c3RhdGljIHZvaWQgcmVjYWxjdWxhdGVfbWlzYyhzdHJ1Y3QgY3B1aWRfcG9saWN5ICpwKQogICAg ICAgICBwLT5leHRkLnJhd1sweDldID0gRU1QVFlfTEVBRjsKIAogICAgICAgICB6ZXJvX2xlYXZl cyhwLT5leHRkLnJhdywgMHhiLCAweDE4KTsKKworICAgICAgICBwLT5leHRkLnJhd1sweDFiXSA9 IEVNUFRZX0xFQUY7IC8qIElCUyAtIG5vdCBzdXBwb3J0ZWQuICovCiAgICAgICAgIGJyZWFrOwog ICAgIH0KIH0KQEAgLTcyNCw3ICs3MjYsNiBAQCBzdGF0aWMgdm9pZCBwdl9jcHVpZCh1aW50MzJf dCBsZWFmLCB1aW50MzJfdCBzdWJsZWFmLCBzdHJ1Y3QgY3B1aWRfbGVhZiAqcmVzKQogCiAgICAg Y2FzZSAweDAwMDAwMDA1OiAvKiBNT05JVE9SL01XQUlUICovCiAgICAgY2FzZSAweDAwMDAwMDBi OiAvKiBFeHRlbmRlZCBUb3BvbG9neSBFbnVtZXJhdGlvbiAqLwotICAgIGNhc2UgMHg4MDAwMDAx YjogLyogSW5zdHJ1Y3Rpb24gQmFzZWQgU2FtcGxpbmcgKi8KICAgICBjYXNlIDB4ODAwMDAwMWM6 IC8qIExpZ2h0IFdlaWdodCBQcm9maWxpbmcgKi8KICAgICB1bnN1cHBvcnRlZDoKICAgICAgICAg KnJlcyA9IEVNUFRZX0xFQUY7CkBAIC03MzQsNyArNzM1LDcgQEAgc3RhdGljIHZvaWQgcHZfY3B1 aWQodWludDMyX3QgbGVhZiwgdWludDMyX3Qgc3VibGVhZiwgc3RydWN0IGNwdWlkX2xlYWYgKnJl cykKICAgICBjYXNlIDB4MiAuLi4gMHgzOgogICAgIGNhc2UgMHg3IC4uLiAweDk6CiAgICAgY2Fz ZSAweGMgLi4uIFhTVEFURV9DUFVJRDoKLSAgICBjYXNlIDB4ODAwMDAwMDAgLi4uIDB4ODAwMDAw MWE6CisgICAgY2FzZSAweDgwMDAwMDAwIC4uLiAweDgwMDAwMDFiOgogICAgICAgICBBU1NFUlRf VU5SRUFDSEFCTEUoKTsKICAgICAgICAgLyogTm93IGhhbmRsZWQgaW4gZ3Vlc3RfY3B1aWQoKS4g Ki8KICAgICB9CkBAIC04MzAsNyArODMxLDcgQEAgc3RhdGljIHZvaWQgaHZtX2NwdWlkKHVpbnQz Ml90IGxlYWYsIHVpbnQzMl90IHN1YmxlYWYsIHN0cnVjdCBjcHVpZF9sZWFmICpyZXMpCiAgICAg Y2FzZSAweDIgLi4uIDB4MzoKICAgICBjYXNlIDB4NyAuLi4gMHg5OgogICAgIGNhc2UgMHhjIC4u LiBYU1RBVEVfQ1BVSUQ6Ci0gICAgY2FzZSAweDgwMDAwMDAwIC4uLiAweDgwMDAwMDFhOgorICAg IGNhc2UgMHg4MDAwMDAwMCAuLi4gMHg4MDAwMDAxYjoKICAgICAgICAgQVNTRVJUX1VOUkVBQ0hB QkxFKCk7CiAgICAgICAgIC8qIE5vdyBoYW5kbGVkIGluIGd1ZXN0X2NwdWlkKCkuICovCiAgICAg fQpAQCAtOTEzLDcgKzkxNCw3IEBAIHZvaWQgZ3Vlc3RfY3B1aWQoY29uc3Qgc3RydWN0IHZjcHUg KnYsIHVpbnQzMl90IGxlYWYsCiAgICAgICAgIGRlZmF1bHQ6CiAgICAgICAgICAgICBnb3RvIGxl Z2FjeTsKIAotICAgICAgICBjYXNlIDB4ODAwMDAwMDAgLi4uIDB4ODAwMDAwMWE6CisgICAgICAg IGNhc2UgMHg4MDAwMDAwMCAuLi4gMHg4MDAwMDAxYjoKICAgICAgICAgICAgICpyZXMgPSBwLT5l eHRkLnJhd1tsZWFmICYgMHhmZmZmXTsKICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICB9CmRp ZmYgLS1naXQgYS94ZW4vaW5jbHVkZS9wdWJsaWMvYXJjaC14ODYvY3B1ZmVhdHVyZXNldC5oIGIv eGVuL2luY2x1ZGUvcHVibGljL2FyY2gteDg2L2NwdWZlYXR1cmVzZXQuaAppbmRleCA3MGYxZTMw Li45N2RkMzUzIDEwMDY0NAotLS0gYS94ZW4vaW5jbHVkZS9wdWJsaWMvYXJjaC14ODYvY3B1ZmVh dHVyZXNldC5oCisrKyBiL3hlbi9pbmNsdWRlL3B1YmxpYy9hcmNoLXg4Ni9jcHVmZWF0dXJlc2V0 LmgKQEAgLTE3Miw3ICsxNzIsNyBAQCBYRU5fQ1BVRkVBVFVSRShTU0U0QSwgICAgICAgICAzKjMy KyA2KSAvKkEgIFNTRS00QSAqLwogWEVOX0NQVUZFQVRVUkUoTUlTQUxJR05TU0UsICAgMyozMisg NykgLypBICBNaXNhbGlnbmVkIFNTRSBtb2RlICovCiBYRU5fQ1BVRkVBVFVSRSgzRE5PV1BSRUZF VENILCAzKjMyKyA4KSAvKkEgIDNETm93IHByZWZldGNoIGluc3RydWN0aW9ucyAqLwogWEVOX0NQ VUZFQVRVUkUoT1NWVywgICAgICAgICAgMyozMisgOSkgLyogICBPUyBWaXNpYmxlIFdvcmthcm91 bmQgKi8KLVhFTl9DUFVGRUFUVVJFKElCUywgICAgICAgICAgIDMqMzIrMTApIC8qUyAgSW5zdHJ1 Y3Rpb24gQmFzZWQgU2FtcGxpbmcgKi8KK1hFTl9DUFVGRUFUVVJFKElCUywgICAgICAgICAgIDMq MzIrMTApIC8qICAgSW5zdHJ1Y3Rpb24gQmFzZWQgU2FtcGxpbmcgKi8KIFhFTl9DUFVGRUFUVVJF KFhPUCwgICAgICAgICAgIDMqMzIrMTEpIC8qQSAgZXh0ZW5kZWQgQVZYIGluc3RydWN0aW9ucyAq LwogWEVOX0NQVUZFQVRVUkUoU0tJTklULCAgICAgICAgMyozMisxMikgLyogICBTS0lOSVQvU1RH SSBpbnN0cnVjdGlvbnMgKi8KIFhFTl9DUFVGRUFUVVJFKFdEVCwgICAgICAgICAgIDMqMzIrMTMp IC8qICAgV2F0Y2hkb2cgdGltZXIgKi8KLS0gCjIuMS40CgoKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2 ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==