From mboxrd@z Thu Jan 1 00:00:00 1970 From: Razvan Cojocaru Subject: [PATCH V5] x86/altp2m: Fix crash with INVALID_ALTP2M EPTP index Date: Thu, 28 Jun 2018 17:35:28 +0300 Message-ID: <1530196528-17865-1-git-send-email-rcojocaru@bitdefender.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.xenproject.org Sender: "Xen-devel" To: xen-devel@lists.xen.org Cc: kevin.tian@intel.com, jbeulich@suse.com, Razvan Cojocaru , george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com, jun.nakajima@intel.com List-Id: xen-devel@lists.xenproject.org QSBWTSBleGl0IGhhbmRsZXIgZXhlY3V0ZWQgaW1tZWRpYXRlbHkgYWZ0ZXIgZW5hYmxpbmcgI1ZF IG1pZ2h0CmZpbmQgYSBzdGFsZSBfX3Ztc2F2ZSgpZCBFUFRQX0lOREVYLCBzdG9yZWQgYnkgY2Fs bGluZwphbHRwMm1fdmNwdV9kZXN0cm95KCkgd2hlbiBTRUNPTkRBUllfRVhFQ19FTkFCTEVfVklS VF9FWENFUFRJT05TCmhhZCBiZWVuIGVuYWJsZWQgYnkgYWx0cDJtX3ZjcHVfdXBkYXRlX3ZtZnVu Y192ZSgpLgoKdm14X3ZtZXhpdF9oYW5kbGVyKCkgX192bXJlYWQoKXMgRVBUUF9JTkRFWCBhcyBz b29uIGFzClNFQ09OREFSWV9FWEVDX0VOQUJMRV9WSVJUX0VYQ0VQVElPTlMgaXMgc2V0LCBzbyBp ZiBhbgphcHBsaWNhdGlvbiBlbmFibGVzIGFsdHAybSBvbiBhIGRvbWFpbiwgc3VjY2VzZnVsbHkg Y2FsbHMKeGNfYWx0cDJtX3NldF92Y3B1X2VuYWJsZV9ub3RpZnkoKSwgdGhlbiBkaXNhYmxlcyBh bHRwMm0gYW5kCmV4aXRzLCBhIHNlY29uZCBydW4gb2Ygc2FpZCBhcHBsaWNhdGlvbiB3aWxsIGxp a2VseSByZWFkIHRoZQpJTlZBTElEX0FMVFAyTSBFUFRQX0lOREVYIHNldCB3aGVuIGRpc2FibGlu ZyBhbHRwMm0gaW4gdGhlIGZpcnN0CnJ1biwgYW5kIGNyYXNoIHRoZSBob3N0IHdpdGggdGhlIEJV R19PTihpZHggPj0gTUFYX0FMVFAyTSksCmJldHdlZW4geGNfYWx0cDJtX3NldF92Y3B1X2VuYWJs ZV9ub3RpZnkoKSBhbmQKeGNfYWx0cDJtX3NldF9kb21haW5fc3RhdGUoLi4uLCBmYWxzZSkuCgpU aGUgcHJvYmxlbSBpcyBub3QgcmVzdHJpY3RlZCB0byBhbiBJTlZBTElEX0FMVFAyTSBFUFRQX0lO REVYCih3aGljaCBjYW4gb25seSBzYW5lbHkgaGFwcGVuIG9uIGFsdHAybSB1bmluaXQpLCBidXQg YXBwbGllcwp0byBhbnkgc3RhbGUgaW5kZXggcHJldmlvdXNseSBzYXZlZCAtIHdoaWNoIG1lYW5z IHRoYXQgYWxsCmFsdHAybV92Y3B1X3VwZGF0ZV92bWZ1bmNfdmUoKSBjYWxscyBtdXN0IGFsc28g Y2FsbAphbHRwMm1fdmNwdV91cGRhdGVfcDJtKCkgYWZ0ZXIgc2V0dGluZwpTRUNPTkRBUllfRVhF Q19FTkFCTEVfVklSVF9FWENFUFRJT05TLCBpbiBvcmRlciB0byBtYWtlIHN1cmUKdGhhdCB0aGUg c3RvcmVkIEVQVFBfSU5ERVggaXMgYWx3YXlzIHZhbGlkIGF0CnZteF92bWV4aXRfaGFuZGxlcigp IHRpbWUuCgpJIGRvbid0IGhvd2V2ZXIgZm9sZCB0aGUgdHdvIGZ1bmN0aW9ucyBpbnRvIG9uZSBl dmVyeXdoZXJlLApzaW5jZSBpbiBwMm1fc3dpdGNoX2RvbWFpbl9hbHRwMm1fYnlfaWQoKSBhbmQK cDJtX3N3aXRjaF92Y3B1X2FsdHAybV9ieV9pZCgpIHRoZSBleHRyYSB3b3JrIGRvbmUgYnkKYWx0 cDJtX3ZjcHVfdXBkYXRlX3ZtZnVuY192ZSgpIGlzIHVubmVjZXNzYXJ5IGFuZCBoYXMgc2lkZQpl ZmZlY3RzIChzdWNoIGFzIF9fdm13cml0ZShWTV9GVU5DVElPTl9DT05UUk9MLCAuLi4pKS4KClNp Z25lZC1vZmYtYnk6IFJhenZhbiBDb2pvY2FydSA8cmNvam9jYXJ1QGJpdGRlZmVuZGVyLmNvbT4K Ci0tLQpDaGFuZ2VzIHNpbmNlIFY0OgogLSBUaGUgZmlyc3QgcGFyYWdyYXBoIGhhcyBiZWVuIHJl LXdyaXR0ZW4gdG8gYmUgbW9yZSByZWFkYWJsZS4KIC0gRml4ZWQgYSB0eXBvIGluIHRoZSBjb21t aXQgZGVzY3JpcHRpb24gImNhbmQgLT4gY2FuIi4KLS0tCiB4ZW4vYXJjaC94ODYvbW0vYWx0cDJt LmMgICAgICB8IDEgLQogeGVuL2luY2x1ZGUvYXNtLXg4Ni9odm0vaHZtLmggfCAyICsrCiAyIGZp bGVzIGNoYW5nZWQsIDIgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQoKZGlmZiAtLWdpdCBh L3hlbi9hcmNoL3g4Ni9tbS9hbHRwMm0uYyBiL3hlbi9hcmNoL3g4Ni9tbS9hbHRwMm0uYwppbmRl eCA5MzBiZGMyLi45ZDYwZGM0IDEwMDY0NAotLS0gYS94ZW4vYXJjaC94ODYvbW0vYWx0cDJtLmMK KysrIGIveGVuL2FyY2gveDg2L21tL2FsdHAybS5jCkBAIC01OCw3ICs1OCw2IEBAIGFsdHAybV92 Y3B1X2Rlc3Ryb3koc3RydWN0IHZjcHUgKnYpCiAKICAgICBhbHRwMm1fdmNwdV9yZXNldCh2KTsK IAotICAgIGFsdHAybV92Y3B1X3VwZGF0ZV9wMm0odik7CiAgICAgYWx0cDJtX3ZjcHVfdXBkYXRl X3ZtZnVuY192ZSh2KTsKIAogICAgIGlmICggdiAhPSBjdXJyZW50ICkKZGlmZiAtLWdpdCBhL3hl bi9pbmNsdWRlL2FzbS14ODYvaHZtL2h2bS5oIGIveGVuL2luY2x1ZGUvYXNtLXg4Ni9odm0vaHZt LmgKaW5kZXggZWY1ZTE5OC4uMGJmNjkxMyAxMDA2NDQKLS0tIGEveGVuL2luY2x1ZGUvYXNtLXg4 Ni9odm0vaHZtLmgKKysrIGIveGVuL2luY2x1ZGUvYXNtLXg4Ni9odm0vaHZtLmgKQEAgLTYzMCw2 ICs2MzAsOCBAQCBzdGF0aWMgaW5saW5lIHZvaWQgYWx0cDJtX3ZjcHVfdXBkYXRlX3ZtZnVuY192 ZShzdHJ1Y3QgdmNwdSAqdikKIHsKICAgICBpZiAoIGh2bV9mdW5jcy5hbHRwMm1fdmNwdV91cGRh dGVfdm1mdW5jX3ZlICkKICAgICAgICAgaHZtX2Z1bmNzLmFsdHAybV92Y3B1X3VwZGF0ZV92bWZ1 bmNfdmUodik7CisKKyAgICBhbHRwMm1fdmNwdV91cGRhdGVfcDJtKHYpOwogfQogCiAvKiBlbXVs YXRlcyAjVkUgKi8KLS0gCjIuNy40CgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVu cHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZv L3hlbi1kZXZlbA==