From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: [PATCH for-4.8] x86/svm: Fix svm_nextrip_insn_length() when crossing the virtual boundary to 0 Date: Wed, 16 Nov 2016 10:51:51 +0000 Message-ID: <1479293511-32420-1-git-send-email-andrew.cooper3@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: 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 , Boris Ostrovsky , Wei Liu , Suravee Suthikulpanit , Jan Beulich List-Id: xen-devel@lists.xenproject.org dm1jYi0+bmV4dHJpcCBjYW4gbGVnaXRpbWF0ZWx5IGJlIGxlc3MgdGhhbiB2bWNiLT5yaXAgd2hl biBleGVjdXRpb24gd3JhcHMKYmFjayBhcm91bmQgdG8gMC4gIEluc3RlYWQsIGNvbXBsYWluIGlm IHRoZSByZXBvcnRlZCBsZW5ndGggaXMgZ3JlYXRlciB0aGFuIDE1CmFuZCB1c2UgeDg2X2RlY29k ZV9pbnNuKCkgYXMgYSBmYWxsYmFjay4KCldoaWxlIG1ha2luZyBjaGFuZ2VzIGhlcmUsIGZpeCB0 d28gd2hpdGVzcGFjZSBpc3N1ZXMgd2l0aCB0aGUgY2FzZSBsYWJlbHMuCgpTaWduZWQtb2ZmLWJ5 OiBBbmRyZXcgQ29vcGVyIDxhbmRyZXcuY29vcGVyM0BjaXRyaXguY29tPgotLS0KQ0M6IEphbiBC ZXVsaWNoIDxKQmV1bGljaEBzdXNlLmNvbT4KQ0M6IEJvcmlzIE9zdHJvdnNreSA8Ym9yaXMub3N0 cm92c2t5QG9yYWNsZS5jb20+CkNDOiBTdXJhdmVlIFN1dGhpa3VscGFuaXQgPHN1cmF2ZWUuc3V0 aGlrdWxwYW5pdEBhbWQuY29tPgpDQzogV2VpIExpdSA8d2VpLmxpdTJAY2l0cml4LmNvbT4KLS0t CiB4ZW4vYXJjaC94ODYvaHZtL3N2bS9lbXVsYXRlLmMgfCAxNSArKysrKysrKystLS0tLS0KIDEg ZmlsZSBjaGFuZ2VkLCA5IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0 IGEveGVuL2FyY2gveDg2L2h2bS9zdm0vZW11bGF0ZS5jIGIveGVuL2FyY2gveDg2L2h2bS9zdm0v ZW11bGF0ZS5jCmluZGV4IDM2NTg1YjAuLmNhNjcwYmYgMTAwNjQ0Ci0tLSBhL3hlbi9hcmNoL3g4 Ni9odm0vc3ZtL2VtdWxhdGUuYworKysgYi94ZW4vYXJjaC94ODYvaHZtL3N2bS9lbXVsYXRlLmMK QEAgLTMwLDE4ICszMCwxOCBAQCBzdGF0aWMgdW5zaWduZWQgbG9uZyBzdm1fbmV4dHJpcF9pbnNu X2xlbmd0aChzdHJ1Y3QgdmNwdSAqdikKIHsKICAgICBzdHJ1Y3Qgdm1jYl9zdHJ1Y3QgKnZtY2Ig PSB2LT5hcmNoLmh2bV9zdm0udm1jYjsKIAotICAgIGlmICggIWNwdV9oYXNfc3ZtX25yaXBzIHx8 ICh2bWNiLT5uZXh0cmlwIDw9IHZtY2ItPnJpcCkgKQorICAgIGlmICggIWNwdV9oYXNfc3ZtX25y aXBzICkKICAgICAgICAgcmV0dXJuIDA7CiAKICNpZm5kZWYgTkRFQlVHCiAgICAgc3dpdGNoICgg dm1jYi0+ZXhpdGNvZGUgKQogICAgIHsKLSAgICBjYXNlIFZNRVhJVF9DUjBfUkVBRC4uLiBWTUVY SVRfRFIxNV9XUklURToKKyAgICBjYXNlIFZNRVhJVF9DUjBfUkVBRCAuLi4gVk1FWElUX0RSMTVf V1JJVEU6CiAgICAgICAgIC8qIGZhdWx0cyBkdWUgdG8gaW5zdHJ1Y3Rpb24gaW50ZXJjZXB0cyAq LwogICAgICAgICAvKiAoZXhpdGNvZGVzIDg0LTk1KSBhcmUgcmVzZXJ2ZWQgKi8KICAgICBjYXNl IFZNRVhJVF9JRFRSX1JFQUQgLi4uIFZNRVhJVF9UUl9XUklURToKICAgICBjYXNlIFZNRVhJVF9S RFRTQyAuLi4gVk1FWElUX01TUjoKLSAgICBjYXNlIFZNRVhJVF9WTVJVTiAuLi4gIFZNRVhJVF9Y U0VUQlY6CisgICAgY2FzZSBWTUVYSVRfVk1SVU4gLi4uIFZNRVhJVF9YU0VUQlY6CiAgICAgICAg IC8qIC4uLmFuZCB0aGUgcmVzdCBvZiB0aGUgI1ZNRVhJVHMgKi8KICAgICBjYXNlIFZNRVhJVF9D UjBfU0VMX1dSSVRFOgogICAgIGNhc2UgVk1FWElUX0VYQ0VQVElPTl9CUDoKQEAgLTg4LDcgKzg4 LDggQEAgaW50IF9fZ2V0X2luc3RydWN0aW9uX2xlbmd0aF9mcm9tX2xpc3Qoc3RydWN0IHZjcHUg KnYsCiAgICAgc3RydWN0IHZtY2Jfc3RydWN0ICp2bWNiID0gdi0+YXJjaC5odm1fc3ZtLnZtY2I7 CiAgICAgc3RydWN0IGh2bV9lbXVsYXRlX2N0eHQgY3R4dDsKICAgICBzdHJ1Y3QgeDg2X2VtdWxh dGVfc3RhdGUgKnN0YXRlOwotICAgIHVuc2lnbmVkIGludCBpbnN0X2xlbiwgaiwgbW9kcm1fcm0s IG1vZHJtX3JlZzsKKyAgICB1bnNpZ25lZCBsb25nIGluc3RfbGVuLCBqOworICAgIHVuc2lnbmVk IGludCBtb2RybV9ybSwgbW9kcm1fcmVnOwogICAgIGludCBtb2RybV9tb2Q7CiAKICAgICAvKgpA QCAtOTYsNyArOTcsOSBAQCBpbnQgX19nZXRfaW5zdHJ1Y3Rpb25fbGVuZ3RoX2Zyb21fbGlzdChz dHJ1Y3QgdmNwdSAqdiwKICAgICAgKiBoYXJkd2FyZS4KICAgICAgKi8KICNpZmRlZiBOREVCVUcK LSAgICBpZiAoIChpbnN0X2xlbiA9IHN2bV9uZXh0cmlwX2luc25fbGVuZ3RoKHYpKSAhPSAwICkK KyAgICBpZiAoIChpbnN0X2xlbiA9IHN2bV9uZXh0cmlwX2luc25fbGVuZ3RoKHYpKSA+IE1BWF9J TlNUX0xFTiApCisgICAgICAgIGdwcmludGsoWEVOTE9HX1dBUk5JTkcsICJOUmlwIHJlcG9ydGVk IGluc25fbGVuICVsdVxuIiwgaW5zbl9sZW4pOworICAgIGVsc2UgaWYgKCBpbnNuX2xlbiAhPSAw ICkKICAgICAgICAgcmV0dXJuIGluc3RfbGVuOwogCiAgICAgaWYgKCB2bWNiLT5leGl0Y29kZSA9 PSBWTUVYSVRfSU9JTyApCkBAIC0xMjAsNyArMTIzLDcgQEAgaW50IF9fZ2V0X2luc3RydWN0aW9u X2xlbmd0aF9mcm9tX2xpc3Qoc3RydWN0IHZjcHUgKnYsCiAgICAgICAgIGogPSBzdm1fbmV4dHJp cF9pbnNuX2xlbmd0aCh2KTsKICAgICBpZiAoIGogJiYgaiAhPSBpbnN0X2xlbiApCiAgICAgewot ICAgICAgICBncHJpbnRrKFhFTkxPR19XQVJOSU5HLCAiaW5zbi1sZW5bJTAyeF09JXUgKGV4cCAl dSlcbiIsCisgICAgICAgIGdwcmludGsoWEVOTE9HX1dBUk5JTkcsICJpbnNuLWxlblslMDJ4XT0l bHUgKGV4cCAlbHUpXG4iLAogICAgICAgICAgICAgICAgIGN0eHQuY3R4dC5vcGNvZGUsIGluc3Rf bGVuLCBqKTsKICAgICAgICAgcmV0dXJuIGo7CiAgICAgfQotLSAKMi4xLjQKCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBs aXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2 ZWwK