From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linutronix.de (146.0.238.70:993) by crypto-ml.lab.linutronix.de with IMAP4-SSL for ; 11 Dec 2018 14:14:13 -0000 Received: from mx1.redhat.com ([209.132.183.28]) by Galois.linutronix.de with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1gWinb-0005kL-BJ for speck@linutronix.de; Tue, 11 Dec 2018 15:14:12 +0100 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C8116309706E for ; Tue, 11 Dec 2018 14:14:04 +0000 (UTC) Received: from [10.36.112.64] (ovpn-112-64.ams2.redhat.com [10.36.112.64]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0F61B60C66 for ; Tue, 11 Dec 2018 14:14:03 +0000 (UTC) Subject: [MODERATED] Re: [PATCH v2 1/8] MDSv2 4 References: From: Paolo Bonzini Message-ID: Date: Tue, 11 Dec 2018 15:14:02 +0100 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/mixed; boundary="g5a8KfyB2BaS3aWdyqc3KbSv97L8h0lAS"; protected-headers="v1" To: speck@linutronix.de List-ID: This is an OpenPGP/MIME encrypted message (RFC 4880 and 3156) --g5a8KfyB2BaS3aWdyqc3KbSv97L8h0lAS Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 10/12/18 18:53, speck for Andi Kleen wrote: > --- a/arch/x86/include/asm/cpufeatures.h > +++ b/arch/x86/include/asm/cpufeatures.h > @@ -342,6 +342,7 @@ > /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18= */ > #define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network= Instructions */ > #define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accum= ulation Single precision */ > +#define X86_FEATURE_MB_CLEAR (18*32+10) /* Flush state on VERW */ KVM also needs the CPUID bit. Paolo --g5a8KfyB2BaS3aWdyqc3KbSv97L8h0lAS--