From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A72CBC76195 for ; Fri, 24 Mar 2023 23:39:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232025AbjCXXjZ (ORCPT ); Fri, 24 Mar 2023 19:39:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42658 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231980AbjCXXjR (ORCPT ); Fri, 24 Mar 2023 19:39:17 -0400 Received: from mail-pl1-x649.google.com (mail-pl1-x649.google.com [IPv6:2607:f8b0:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 193161E5D0 for ; Fri, 24 Mar 2023 16:39:11 -0700 (PDT) Received: by mail-pl1-x649.google.com with SMTP id k17-20020a170902d59100b0019abcf45d75so1940254plh.8 for ; Fri, 24 Mar 2023 16:39:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1679701150; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=LNhDAlpxjuXbPCJZSvZ4PajBXqlNuqyadAVm1zFR7r8=; b=Uh/7QRxBEFuR4HPCZfIEOAEIBGYQT+8JkAe3RrNbkalNMIjKIUla9jK/0r97dj2j6x zRRT1PJ5AF/vd4xWVPzD3Iuf/qu0L74zzLvIGp0EtWbd3YiZBCS+X/cXUMNVEV3+02Z9 ArvhexRMnN7ZYbLneuJvB5f29F1kgKUVT5uD/V7K4yoE6/HR6544H4auQvgXxEabZJgQ G6KKk+09Xm4INIEAXLiOTxFvXISOfMdjNnYevvdj/MvY3wZKAvTPutUYQMNzGGERAQw7 lfgHRkLBcp0iC0MnIzLP6nKI7Rb/cKdi5lQ0w9hT8vduVubWPmpVdq1JhVqSBe4jQPR0 +11A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679701150; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=LNhDAlpxjuXbPCJZSvZ4PajBXqlNuqyadAVm1zFR7r8=; b=l1Hw1eNx2MRdAtdErZ9C7nWrnTStF2d2Tcti8upG3M1/RN5lZ46Ye4pnrgAC5iCBvM BqHqc052f9RXLyo4ANj0NIp4UtVrHh9CVP2f0iaTysys0sBvAVMJFFXHJN3aloQ1ym1x 8ZNtytex2lDAh3QXaN7+oC+eNULlTBsem8QPKe+ERYlUONJCBIPFLNurdFxsljb+i8an FsR9VbWElAgTuXFaaw3IkWST8YFGgdpzpkVpxcpeR0FjSATykqgJZwywB3+yp0X+mcG5 o8CiEztFSiIPFuteVctj/4JslRcKHtoA8sRMKreabLwIv1vtW2j5ZorngfQ2jcY+o5sC jplA== X-Gm-Message-State: AAQBX9cmpSlcWs2gR5M9YdcwT3DBLRrX2y+W8RIDWteX1k4FutYe+S3U wOyxKPudefLSqB/dTV+VyhaWteKqyyU= X-Google-Smtp-Source: AKy350an5KuJVDFHe55MYVMweRhnEBnwRqtMPoZt6P2d7ajYkx9+eWP68Q1x0j44plHHvaE7OlhWPMj2iHo= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:903:1358:b0:19f:3cc1:e3bd with SMTP id jl24-20020a170903135800b0019f3cc1e3bdmr1539109plb.4.1679701150430; Fri, 24 Mar 2023 16:39:10 -0700 (PDT) Date: Fri, 24 Mar 2023 16:38:14 -0700 In-Reply-To: <20230124194519.2893234-1-seanjc@google.com> Mime-Version: 1.0 References: <20230124194519.2893234-1-seanjc@google.com> X-Mailer: git-send-email 2.40.0.348.gf938b09366-goog Message-ID: <167961285281.2555533.5982438178105479790.b4-ty@google.com> Subject: Re: [PATCH] x86: KVM: Add common feature flag for AMD's PSFD From: Sean Christopherson To: Sean Christopherson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Paolo Bonzini Cc: "H. Peter Anvin" , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Content-Type: text/plain; charset="utf-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 24 Jan 2023 19:45:19 +0000, Sean Christopherson wrote: > Use a common X86_FEATURE_* flag for AMD's PSFD, and suppress it from > /proc/cpuinfo via the standard method of an empty string instead of > hacking in a one-off "private" #define in KVM. The request that led to > KVM defining its own flag was really just that the feature not show up > in /proc/cpuinfo, and additional patches+discussions in the interim have > clarified that defining flags in cpufeatures.h purely so that KVM can > advertise features to userspace is ok so long as the kernel already uses > a word to track the associated CPUID leaf. > > [...] Applied to kvm-x86 misc, thanks! [1/1] x86: KVM: Add common feature flag for AMD's PSFD https://github.com/kvm-x86/linux/commit/3d8f61bf8bcd -- https://github.com/kvm-x86/linux/tree/next https://github.com/kvm-x86/linux/tree/fixes