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 X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A08F3C433F5 for ; Tue, 21 Sep 2021 21:59:16 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E124361019 for ; Tue, 21 Sep 2021 21:59:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E124361019 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=shutemov.name Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HDb1G4DK0z3c7s for ; Wed, 22 Sep 2021 07:59:14 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=shutemov-name.20210112.gappssmtp.com header.i=@shutemov-name.20210112.gappssmtp.com header.a=rsa-sha256 header.s=20210112 header.b=uz74/2S9; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=shutemov.name (client-ip=2a00:1450:4864:20::132; helo=mail-lf1-x132.google.com; envelope-from=kirill@shutemov.name; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=shutemov-name.20210112.gappssmtp.com header.i=@shutemov-name.20210112.gappssmtp.com header.a=rsa-sha256 header.s=20210112 header.b=uz74/2S9; dkim-atps=neutral Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HDb0W4W0bz2xXX for ; Wed, 22 Sep 2021 07:58:34 +1000 (AEST) Received: by mail-lf1-x132.google.com with SMTP id y28so3625118lfb.0 for ; Tue, 21 Sep 2021 14:58:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shutemov-name.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=3LA4/O2mCyOef4VI1WFdoR8n1dGVVw7qzM7cBS6DVhU=; b=uz74/2S9fGGuaG1ODTSPcqBPXWYPIeYWZ5doyMS2bRw5AX5Q0Ua+uMdim4ZuJxyrxA jJZQO4P96OqxH5cKvegadiVeIhPzNJbdYGDNOj6HudiXM/SjkCNrO1WvHS6o1vufFzsX 2aSN3AaXAf4xQbbvR+FPssTEArjutFFJ66GH7RUNHyFCNozOqySWjjTExvVocPFb39xr 6cGXTnJkbxFWnWohqMtGSjOnjJQnu/xNRG5R8l2FsElk/Lpvl66TfQOcwUYfJ1TTZ5xS XHIL9Tea6doFMlP16r8MNgBnWMAMa0JaH2OsWma5jit+qxznz4qqyPPj9R612HR9czFp 8TyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=3LA4/O2mCyOef4VI1WFdoR8n1dGVVw7qzM7cBS6DVhU=; b=y+LXfmzP5sndkqt4m1560ccwsEOPDP/Lj1pOxt4jpcU2zfvZqjIi2K067H9x1RsOKb +C/rSIV0sD4fOx+GWN3UHuxP3NGCk8CuPFGJFZJego4fb+4L6NBu46sBxVroNM2iJyAX aGfGMv/E5D1SI6JWd1nXB+0jL2mkGdrUks1a1KN0jKLEbeBxpYmfeUxhkd1dKE8oLAE7 edUAt4sGabEuT6jxnT1wTskX/epUmz6yoR4rXNPwYaIBSwYZZyTjKnQ++m4dFOMQeNxC pGR9pwdg7LOi+riaBs42iQrOz+n+FKK/+PtuPxtaZkzC1QhXhnlNdc/P3prufzVEDmZw 5O9g== X-Gm-Message-State: AOAM530VCZOSNhIDpNt30sot7fdMekLRTVm5uJeu/nl/n7lPOG+tZidb IHXmDDPvcvabXCTFPwempjT6jJSFh49SXXxgh6A= X-Google-Smtp-Source: ABdhPJwDR/A8UmkVQG/A20LQ6G5BoWJFTrnWNencwdMb7p0WPRY497q9Nuc+l8sjchxpIRdzv87pHg== X-Received: by 2002:a2e:86ce:: with SMTP id n14mr11214294ljj.211.1632261509754; Tue, 21 Sep 2021 14:58:29 -0700 (PDT) Received: from box.localdomain ([86.57.175.117]) by smtp.gmail.com with ESMTPSA id q7sm16555ljg.137.2021.09.21.14.58.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Sep 2021 14:58:29 -0700 (PDT) Received: by box.localdomain (Postfix, from userid 1000) id 5DF1710305C; Wed, 22 Sep 2021 00:58:30 +0300 (+03) Date: Wed, 22 Sep 2021 00:58:30 +0300 From: "Kirill A. Shutemov" To: Tom Lendacky Subject: Re: [PATCH v3 5/8] x86/sme: Replace occurrences of sme_active() with cc_platform_has() Message-ID: <20210921215830.vqxd75r4eyau6cxy@box.shutemov.name> References: <367624d43d35d61d5c97a8b289d9ddae223636e9.1631141919.git.thomas.lendacky@amd.com> <20210920192341.maue7db4lcbdn46x@box.shutemov.name> <77df37e1-0496-aed5-fd1d-302180f1edeb@amd.com> <20210921212059.wwlytlmxoft4cdth@box.shutemov.name> <20210921213401.i2pzaotgjvn4efgg@box.shutemov.name> <00f52bf8-cbc6-3721-f40e-2f51744751b0@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00f52bf8-cbc6-3721-f40e-2f51744751b0@amd.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sathyanarayanan Kuppuswamy , linux-efi@vger.kernel.org, Brijesh Singh , kvm@vger.kernel.org, Peter Zijlstra , Dave Hansen , dri-devel@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, Will Deacon , linux-s390@vger.kernel.org, Andi Kleen , Joerg Roedel , x86@kernel.org, amd-gfx@lists.freedesktop.org, Christoph Hellwig , Ingo Molnar , linux-graphics-maintainer@vmware.com, Tianyu Lan , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, Sep 21, 2021 at 04:43:59PM -0500, Tom Lendacky wrote: > On 9/21/21 4:34 PM, Kirill A. Shutemov wrote: > > On Tue, Sep 21, 2021 at 11:27:17PM +0200, Borislav Petkov wrote: > > > On Wed, Sep 22, 2021 at 12:20:59AM +0300, Kirill A. Shutemov wrote: > > > > I still believe calling cc_platform_has() from __startup_64() is totally > > > > broken as it lacks proper wrapping while accessing global variables. > > > > > > Well, one of the issues on the AMD side was using boot_cpu_data too > > > early and the Intel side uses it too. Can you replace those checks with > > > is_tdx_guest() or whatever was the helper's name which would check > > > whether the the kernel is running as a TDX guest, and see if that helps? > > > > There's no need in Intel check this early. Only AMD need it. Maybe just > > opencode them? > > Any way you can put a gzipped/bzipped copy of your vmlinux file somewhere I > can grab it from and take a look at it? You can find broken vmlinux and bzImage here: https://drive.google.com/drive/folders/1n74vUQHOGebnF70Im32qLFY8iS3wvjIs?usp=sharing Let me know when I can remove it. -- Kirill A. Shutemov