Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [4.9,039/241] x86/mce: Init some CPU features early From: Greg Kroah-Hartman Message-Id: <20180319180752.824360363@linuxfoundation.org> Date: Mon, 19 Mar 2018 19:05:04 +0100 To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Yazen Ghannam , Tony Luck , linux-edac , x86-ml , Borislav Petkov , Thomas Gleixner , Sasha Levin List-ID: NC45LXN0YWJsZSByZXZpZXcgcGF0Y2guICBJZiBhbnlvbmUgaGFzIGFueSBvYmplY3Rpb25zLCBw bGVhc2UgbGV0IG1lIGtub3cuCgotLS0tLS0tLS0tLS0tLS0tLS0KCkZyb206IFlhemVuIEdoYW5u YW0gPFlhemVuLkdoYW5uYW1AYW1kLmNvbT4KCgpbIFVwc3RyZWFtIGNvbW1pdCA1MjA0YmYxNzAz MWI2OWZhNWZhYTRkYzgwYTlkYzFlMjQ0NmQ3NGY5IF0KCldoZW4gdGhlIE1DQSBiYW5rcyBpbiBf X21jaGVja19jcHVfaW5pdF9nZW5lcmljKCkgYXJlIHBvbGxlZCBmb3IgbGVmdG92ZXIKZXJyb3Jz IGxvZ2dlZCBkdXJpbmcgYm9vdCBvciBmcm9tIHRoZSBwcmV2aW91cyBib290LCBpdHMgcmVxdWly ZWQgdG8gaGF2ZQpDUFUgZmVhdHVyZXMgZGV0ZWN0ZWQgc3VmZmljaWVudGx5IHNvIHRoYXQgdGhl IHJlYWRpbmcgb3V0IGFuZCBoYW5kbGluZyBvZgp0aG9zZSBlYXJseSBlcnJvcnMgaXMgZG9uZSBj b3JyZWN0bHkuCgpJZiB0aG9zZSBmZWF0dXJlcyBhcmUgbm90IGF2YWlsYWJsZSwgdGhlIGRlY29k aW5nIG1heSBtaXNzIHNvbWUgaW5mb3JtYXRpb24KYW5kIGdldCBpbmNvbXBsZXRlIGVycm9ycyBs b2dnZWQuIEZvciBleGFtcGxlLCBvbiBTTUNBIHN5c3RlbXMgdGhlIE1DQV9JUElECmFuZCBNQ0Ff U1lORCByZWdpc3RlcnMgYXJlIG5vdCBsb2dnZWQgYW5kIE1DQV9BRERSIGlzIG5vdCBtYXNrZWQK YXBwcm9wcmlhdGVseS4KClRvIGN1cmUgdGhhdCwgZG8gYSBzdWJzZXQgb2YgdGhlIGJhc2ljIGZl YXR1cmUgZGV0ZWN0aW9uIGVhcmx5IHdoaWxlIHRoZQpyZXN0IGhhcHBlbnMgaW4gaXRzIHVzdWFs IHBsYWNlIGluIF9fbWNoZWNrX2NwdV9pbml0X3ZlbmRvcigpLgoKU2lnbmVkLW9mZi1ieTogWWF6 ZW4gR2hhbm5hbSA8WWF6ZW4uR2hhbm5hbUBhbWQuY29tPgpDYzogVG9ueSBMdWNrIDx0b255Lmx1 Y2tAaW50ZWwuY29tPgpDYzogbGludXgtZWRhYyA8bGludXgtZWRhY0B2Z2VyLmtlcm5lbC5vcmc+ CkNjOiB4ODYtbWwgPHg4NkBrZXJuZWwub3JnPgpMaW5rOiBodHRwOi8vbGttbC5rZXJuZWwub3Jn L3IvMTQ4OTU5OTA1NS0yMDc1Ni0xLWdpdC1zZW5kLWVtYWlsLVlhemVuLkdoYW5uYW1AYW1kLmNv bQpbIE1hc3NhZ2UgY29tbWl0IG1lc3NhZ2UgYW5kIHNpbXBsaWZ5LiBdClNpZ25lZC1vZmYtYnk6 IEJvcmlzbGF2IFBldGtvdiA8YnBAc3VzZS5kZT4KU2lnbmVkLW9mZi1ieTogVGhvbWFzIEdsZWl4 bmVyIDx0Z2x4QGxpbnV0cm9uaXguZGU+ClNpZ25lZC1vZmYtYnk6IFNhc2hhIExldmluIDxhbGV4 YW5kZXIubGV2aW5AbWljcm9zb2Z0LmNvbT4KU2lnbmVkLW9mZi1ieTogR3JlZyBLcm9haC1IYXJ0 bWFuIDxncmVna2hAbGludXhmb3VuZGF0aW9uLm9yZz4KLS0tCiBhcmNoL3g4Ni9rZXJuZWwvY3B1 L21jaGVjay9tY2UuYyB8ICAgMzAgKysrKysrKysrKysrKysrKysrLS0tLS0tLS0tLS0tCiAxIGZp bGUgY2hhbmdlZCwgMTggaW5zZXJ0aW9ucygrKSwgMTIgZGVsZXRpb25zKC0pCgoKCi0tClRvIHVu c3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBsaW51 eC1lZGFjIiBpbgp0aGUgYm9keSBvZiBhIG1lc3NhZ2UgdG8gbWFqb3Jkb21vQHZnZXIua2VybmVs Lm9yZwpNb3JlIG1ham9yZG9tbyBpbmZvIGF0ICBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9y ZG9tby1pbmZvLmh0bWwKCi0tLSBhL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZS5jCisr KyBiL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZS5jCkBAIC0xNjk1LDMwICsxNjk1LDM1 IEBAIHN0YXRpYyBpbnQgX19tY2hlY2tfY3B1X2FuY2llbnRfaW5pdChzdHIKIAlyZXR1cm4gMDsK IH0KIAotc3RhdGljIHZvaWQgX19tY2hlY2tfY3B1X2luaXRfdmVuZG9yKHN0cnVjdCBjcHVpbmZv X3g4NiAqYykKKy8qCisgKiBJbml0IGJhc2ljIENQVSBmZWF0dXJlcyBuZWVkZWQgZm9yIGVhcmx5 IGRlY29kaW5nIG9mIE1DRXMuCisgKi8KK3N0YXRpYyB2b2lkIF9fbWNoZWNrX2NwdV9pbml0X2Vh cmx5KHN0cnVjdCBjcHVpbmZvX3g4NiAqYykKIHsKLQlzd2l0Y2ggKGMtPng4Nl92ZW5kb3IpIHsK LQljYXNlIFg4Nl9WRU5ET1JfSU5URUw6Ci0JCW1jZV9pbnRlbF9mZWF0dXJlX2luaXQoYyk7Ci0J CW1jZV9hZGp1c3RfdGltZXIgPSBjbWNpX2ludGVsX2FkanVzdF90aW1lcjsKLQkJYnJlYWs7Ci0K LQljYXNlIFg4Nl9WRU5ET1JfQU1EOiB7CisJaWYgKGMtPng4Nl92ZW5kb3IgPT0gWDg2X1ZFTkRP Ul9BTUQpIHsKIAkJbWNlX2ZsYWdzLm92ZXJmbG93X3JlY292ID0gISFjcHVfaGFzKGMsIFg4Nl9G RUFUVVJFX09WRVJGTE9XX1JFQ09WKTsKIAkJbWNlX2ZsYWdzLnN1Y2NvcgkgPSAhIWNwdV9oYXMo YywgWDg2X0ZFQVRVUkVfU1VDQ09SKTsKIAkJbWNlX2ZsYWdzLnNtY2EJCSA9ICEhY3B1X2hhcyhj LCBYODZfRkVBVFVSRV9TTUNBKTsKIAotCQkvKgotCQkgKiBJbnN0YWxsIHByb3BlciBvcHMgZm9y IFNjYWxhYmxlIE1DQSBlbmFibGVkIHByb2Nlc3NvcnMKLQkJICovCiAJCWlmIChtY2VfZmxhZ3Mu c21jYSkgewogCQkJbXNyX29wcy5jdGwJPSBzbWNhX2N0bF9yZWc7CiAJCQltc3Jfb3BzLnN0YXR1 cwk9IHNtY2Ffc3RhdHVzX3JlZzsKIAkJCW1zcl9vcHMuYWRkcgk9IHNtY2FfYWRkcl9yZWc7CiAJ CQltc3Jfb3BzLm1pc2MJPSBzbWNhX21pc2NfcmVnOwogCQl9Ci0JCW1jZV9hbWRfZmVhdHVyZV9p bml0KGMpOworCX0KK30KIAorc3RhdGljIHZvaWQgX19tY2hlY2tfY3B1X2luaXRfdmVuZG9yKHN0 cnVjdCBjcHVpbmZvX3g4NiAqYykKK3sKKwlzd2l0Y2ggKGMtPng4Nl92ZW5kb3IpIHsKKwljYXNl IFg4Nl9WRU5ET1JfSU5URUw6CisJCW1jZV9pbnRlbF9mZWF0dXJlX2luaXQoYyk7CisJCW1jZV9h ZGp1c3RfdGltZXIgPSBjbWNpX2ludGVsX2FkanVzdF90aW1lcjsKKwkJYnJlYWs7CisKKwljYXNl IFg4Nl9WRU5ET1JfQU1EOiB7CisJCW1jZV9hbWRfZmVhdHVyZV9pbml0KGMpOwogCQlicmVhazsK IAkJfQogCkBAIC0xODA0LDYgKzE4MDksNyBAQCB2b2lkIG1jaGVja19jcHVfaW5pdChzdHJ1Y3Qg Y3B1aW5mb194ODYKIAogCW1hY2hpbmVfY2hlY2tfdmVjdG9yID0gZG9fbWFjaGluZV9jaGVjazsK IAorCV9fbWNoZWNrX2NwdV9pbml0X2Vhcmx5KGMpOwogCV9fbWNoZWNrX2NwdV9pbml0X2dlbmVy aWMoKTsKIAlfX21jaGVja19jcHVfaW5pdF92ZW5kb3IoYyk7CiAJX19tY2hlY2tfY3B1X2luaXRf Y2xlYXJfYmFua3MoKTsK