Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [4.4,35/47] x86/mce: Detect local MCEs properly From: Greg Kroah-Hartman Message-Id: <20180710182338.617388540@linuxfoundation.org> Date: Tue, 10 Jul 2018 20:24:59 +0200 To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yazen Ghannam , Borislav Petkov , Andy Lutomirski , Borislav Petkov , Brian Gerst , Denys Vlasenko , "H. Peter Anvin" , Linus Torvalds , Peter Zijlstra , Thomas Gleixner , Tony Luck , linux-edac , Ingo Molnar List-ID: NC40LXN0YWJsZSByZXZpZXcgcGF0Y2guICBJZiBhbnlvbmUgaGFzIGFueSBvYmplY3Rpb25zLCBw bGVhc2UgbGV0IG1lIGtub3cuCgotLS0tLS0tLS0tLS0tLS0tLS0KCkZyb206IFlhemVuIEdoYW5u YW0gPFlhemVuLkdoYW5uYW1AYW1kLmNvbT4KCmNvbW1pdCBmZWFkMzVjNjg5MjY2ODJjOTBjOTk1 ZjIyYjQ4ZjFjOGQ3ODg2NWMxIHVwc3RyZWFtLgoKQ2hlY2sgdGhlIE1DR19TVEFUVVNfTE1DRVMg Yml0IG9uIEludGVsIHRvIHZlcmlmeSB0aGF0IGN1cnJlbnQgTUNFIGlzCmxvY2FsLiBJdCBpcyBh bHdheXMgbG9jYWwgb24gQU1ELgoKU2lnbmVkLW9mZi1ieTogWWF6ZW4gR2hhbm5hbSA8WWF6ZW4u R2hhbm5hbUBhbWQuY29tPgpbIE1hc3NhZ2VkIGl0IGEgYml0LiBSZWZsb3dlZCBjb21tZW50cy4g U2h1dCB1cCAtV21heWJlLXVuaW5pdGlhbGl6ZWQuIF0KU2lnbmVkLW9mZi1ieTogQm9yaXNsYXYg UGV0a292IDxicEBzdXNlLmRlPgpDYzogQW5keSBMdXRvbWlyc2tpIDxsdXRvQGFtYWNhcGl0YWwu bmV0PgpDYzogQm9yaXNsYXYgUGV0a292IDxicEBhbGllbjguZGU+CkNjOiBCcmlhbiBHZXJzdCA8 YnJnZXJzdEBnbWFpbC5jb20+CkNjOiBEZW55cyBWbGFzZW5rbyA8ZHZsYXNlbmtAcmVkaGF0LmNv bT4KQ2M6IEguIFBldGVyIEFudmluIDxocGFAenl0b3IuY29tPgpDYzogTGludXMgVG9ydmFsZHMg PHRvcnZhbGRzQGxpbnV4LWZvdW5kYXRpb24ub3JnPgpDYzogUGV0ZXIgWmlqbHN0cmEgPHBldGVy ekBpbmZyYWRlYWQub3JnPgpDYzogVGhvbWFzIEdsZWl4bmVyIDx0Z2x4QGxpbnV0cm9uaXguZGU+ CkNjOiBUb255IEx1Y2sgPHRvbnkubHVja0BpbnRlbC5jb20+CkNjOiBsaW51eC1lZGFjIDxsaW51 eC1lZGFjQHZnZXIua2VybmVsLm9yZz4KTGluazogaHR0cDovL2xrbWwua2VybmVsLm9yZy9yLzE0 NjIwMTk2MzctMTY0NzQtOC1naXQtc2VuZC1lbWFpbC1icEBhbGllbjguZGUKU2lnbmVkLW9mZi1i eTogSW5nbyBNb2xuYXIgPG1pbmdvQGtlcm5lbC5vcmc+ClNpZ25lZC1vZmYtYnk6IEdyZWcgS3Jv YWgtSGFydG1hbiA8Z3JlZ2toQGxpbnV4Zm91bmRhdGlvbi5vcmc+Ci0tLQogYXJjaC94ODYva2Vy bmVsL2NwdS9tY2hlY2svbWNlLmMgfCAgIDMzICsrKysrKysrKysrKysrKysrKysrLS0tLS0tLS0t LS0tLQogMSBmaWxlIGNoYW5nZWQsIDIwIGluc2VydGlvbnMoKyksIDEzIGRlbGV0aW9ucygtKQoK CgotLQpUbyB1bnN1YnNjcmliZSBmcm9tIHRoaXMgbGlzdDogc2VuZCB0aGUgbGluZSAidW5zdWJz Y3JpYmUgbGludXgtZWRhYyIgaW4KdGhlIGJvZHkgb2YgYSBtZXNzYWdlIHRvIG1ham9yZG9tb0B2 Z2VyLmtlcm5lbC5vcmcKTW9yZSBtYWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2VybmVs Lm9yZy9tYWpvcmRvbW8taW5mby5odG1sCgotLS0gYS9hcmNoL3g4Ni9rZXJuZWwvY3B1L21jaGVj ay9tY2UuYworKysgYi9hcmNoL3g4Ni9rZXJuZWwvY3B1L21jaGVjay9tY2UuYwpAQCAtOTgwLDEx ICs5ODAsMTIgQEAgdm9pZCBkb19tYWNoaW5lX2NoZWNrKHN0cnVjdCBwdF9yZWdzICpyZQogCWlu dCBpOwogCWludCB3b3JzdCA9IDA7CiAJaW50IHNldmVyaXR5OworCiAJLyoKIAkgKiBFc3RhYmxp c2ggc2VxdWVudGlhbCBvcmRlciBiZXR3ZWVuIHRoZSBDUFVzIGVudGVyaW5nIHRoZSBtYWNoaW5l CiAJICogY2hlY2sgaGFuZGxlci4KIAkgKi8KLQlpbnQgb3JkZXI7CisJaW50IG9yZGVyID0gLTE7 CiAJLyoKIAkgKiBJZiBub193YXlfb3V0IGdldHMgc2V0LCB0aGVyZSBpcyBubyBzYWZlIHdheSB0 byByZWNvdmVyIGZyb20gdGhpcwogCSAqIE1DRS4gIElmIG1jYV9jZmcudG9sZXJhbnQgaXMgY3Jh bmtlZCB1cCwgd2UnbGwgdHJ5IGFueXdheS4KQEAgLTEwMDAsNyArMTAwMSwxMiBAQCB2b2lkIGRv X21hY2hpbmVfY2hlY2soc3RydWN0IHB0X3JlZ3MgKnJlCiAJY2hhciAqbXNnID0gIlVua25vd24i OwogCXU2NCByZWNvdmVyX3BhZGRyID0gfjB1bGw7CiAJaW50IGZsYWdzID0gTUZfQUNUSU9OX1JF UVVJUkVEOwotCWludCBsbWNlID0gMDsKKworCS8qCisJICogTUNFcyBhcmUgYWx3YXlzIGxvY2Fs IG9uIEFNRC4gU2FtZSBpcyBkZXRlcm1pbmVkIGJ5IE1DR19TVEFUVVNfTE1DRVMKKwkgKiBvbiBJ bnRlbC4KKwkgKi8KKwlpbnQgbG1jZSA9IDE7CiAKIAkvKiBJZiB0aGlzIENQVSBpcyBvZmZsaW5l LCBqdXN0IGJhaWwgb3V0LiAqLwogCWlmIChjcHVfaXNfb2ZmbGluZShzbXBfcHJvY2Vzc29yX2lk KCkpKSB7CkBAIC0xMDM5LDE5ICsxMDQ1LDIwIEBAIHZvaWQgZG9fbWFjaGluZV9jaGVjayhzdHJ1 Y3QgcHRfcmVncyAqcmUKIAkJa2lsbF9pdCA9IDE7CiAKIAkvKgotCSAqIENoZWNrIGlmIHRoaXMg TUNFIGlzIHNpZ25hbGVkIHRvIG9ubHkgdGhpcyBsb2dpY2FsIHByb2Nlc3NvcgorCSAqIENoZWNr IGlmIHRoaXMgTUNFIGlzIHNpZ25hbGVkIHRvIG9ubHkgdGhpcyBsb2dpY2FsIHByb2Nlc3NvciwK KwkgKiBvbiBJbnRlbCBvbmx5LgogCSAqLwotCWlmIChtLm1jZ3N0YXR1cyAmIE1DR19TVEFUVVNf TE1DRVMpCi0JCWxtY2UgPSAxOwotCWVsc2UgewotCQkvKgotCQkgKiBHbyB0aHJvdWdoIGFsbCB0 aGUgYmFua3MgaW4gZXhjbHVzaW9uIG9mIHRoZSBvdGhlciBDUFVzLgotCQkgKiBUaGlzIHdheSB3 ZSBkb24ndCByZXBvcnQgZHVwbGljYXRlZCBldmVudHMgb24gc2hhcmVkIGJhbmtzCi0JCSAqIGJl Y2F1c2UgdGhlIGZpcnN0IG9uZSB0byBzZWUgaXQgd2lsbCBjbGVhciBpdC4KLQkJICogSWYgdGhp cyBpcyBhIExvY2FsIE1DRSwgdGhlbiBubyBuZWVkIHRvIHBlcmZvcm0gcmVuZGV6dm91cy4KLQkJ ICovCisJaWYgKG0uY3B1dmVuZG9yID09IFg4Nl9WRU5ET1JfSU5URUwpCisJCWxtY2UgPSBtLm1j Z3N0YXR1cyAmIE1DR19TVEFUVVNfTE1DRVM7CisKKwkvKgorCSAqIEdvIHRocm91Z2ggYWxsIGJh bmtzIGluIGV4Y2x1c2lvbiBvZiB0aGUgb3RoZXIgQ1BVcy4gVGhpcyB3YXkgd2UKKwkgKiBkb24n dCByZXBvcnQgZHVwbGljYXRlZCBldmVudHMgb24gc2hhcmVkIGJhbmtzIGJlY2F1c2UgdGhlIGZp cnN0IG9uZQorCSAqIHRvIHNlZSBpdCB3aWxsIGNsZWFyIGl0LiBJZiB0aGlzIGlzIGEgTG9jYWwg TUNFLCB0aGVuIG5vIG5lZWQgdG8KKwkgKiBwZXJmb3JtIHJlbmRlenZvdXMuCisJICovCisJaWYg KCFsbWNlKQogCQlvcmRlciA9IG1jZV9zdGFydCgmbm9fd2F5X291dCk7Ci0JfQogCiAJZm9yIChp ID0gMDsgaSA8IGNmZy0+YmFua3M7IGkrKykgewogCQlfX2NsZWFyX2JpdChpLCB0b2NsZWFyKTsK