Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp4038371iob; Tue, 17 May 2022 12:28:43 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxmRk2wMY8N7JSPX57TKhRjgb6GDvlwiRt7TfacSMAQ+oOzs/BK6nfn1lvncSsrvSye/3ju X-Received: by 2002:a17:907:d22:b0:6f4:8766:2042 with SMTP id gn34-20020a1709070d2200b006f487662042mr21307908ejc.259.1652815722980; Tue, 17 May 2022 12:28:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1652815722; cv=none; d=google.com; s=arc-20160816; b=GHTmvWE5Ji6blp37yEVbZgJXldU+H9b9+TQZ1hdJFOOI6PwFsUjPOl7St8a9dTgnPX 8NRO/ZQdldq9svXAdIw79UfhAZ3ok4giDc1W1ritkkprGYaO49DijZ2eiqeVSgBnL0/o Uz6v8xQosYIzZVTnZaF8veqwsNmxeOSTWxPD3tCZaF/7zBweWjOCd8XwmWSvgMHA3Rx6 g1MHQytSzuOk1CiIWhWP1sUQTshs+EwJRc3GXyXZ7pEeB/Kok7eow5Eu5jnyo2LhFKK1 VqV6AANI5wWUpU/SlIKlwG1+a4emdqbr2HIwwH84H1sw3LdrhysaeKUStQ1QGFoVrbQH Gihw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=mdteKB+W+Ir+Ek7S24qGhn5AqZt4pAoxK6idhrOXOiA=; b=ZVDqRiLj85PzjlR5/+otmyICLDvPQ0Gu7tRHA54CtAQEEKjYQ5SZo+D3mxoQCsNmTA YOvqgb9owlI5fBUCG2a36/JqgIOAPn3Q7FQDqnQ7y7kdeVpMIk/qt1igF3WDYh0EPrO8 OHmUqDMAkEa3zWWlL0sIu0BOg7PXgxcO+/j/ErUiK3kTOjU82eb+ZG/MCSsJGyoXNgPO RJrfOu9RNy8bEGCwD3TX8Ie9QnW9g38ZfJc31j5luxXChOucZs1UNq/maZ/6+1qp66d7 apNdgTQP8BA/sQBOZ5m7CqZztyAA1II3ioNSpeKyaweQ1OzuNgIoKzfN7tDlSGHA7aS8 TFpQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=kx86xIz8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id y17-20020a170906559100b006f4fc3e2c3esi38882ejp.878.2022.05.17.12.28.16; Tue, 17 May 2022 12:28:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=kx86xIz8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242421AbiEQIrD (ORCPT + 99 others); Tue, 17 May 2022 04:47:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234764AbiEQIrA (ORCPT ); Tue, 17 May 2022 04:47:00 -0400 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73FEF43ADB for ; Tue, 17 May 2022 01:46:57 -0700 (PDT) Received: from zn.tnic (p200300ea97465748329c23fffea6a903.dip0.t-ipconnect.de [IPv6:2003:ea:9746:5748:329c:23ff:fea6:a903]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id D31EB1EC04F9; Tue, 17 May 2022 10:46:51 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1652777211; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=mdteKB+W+Ir+Ek7S24qGhn5AqZt4pAoxK6idhrOXOiA=; b=kx86xIz8b/cosxNH/NVq8y6F17zcx9cmbahvqer9Xs8t3gg0p9j0ci4TqmhbaLV+uYE27q hBuwBwh/m+VJ3gSJQuhd+nH+B8yXSespQrCHqVLB1Bw2kbIv6VknGdMCQjk49Q/6RvHYwe Pb3kaUR51TEWsd1qTwJSdZ6P1Q0C0ag= Date: Tue, 17 May 2022 10:46:43 +0200 From: Borislav Petkov To: Stephane Eranian Cc: Peter Zijlstra , X86 ML , LKML Subject: Re: [PATCH] perf/x86/amd: Run AMD BRS code only on supported hw Message-ID: References: <20220516154838.7044-1-bp@alien8.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 16, 2022 at 05:59:27PM -0700, Stephane Eranian wrote: > Thanks for catching this. I tested on Zen2 (Fam17h) and it did not > trigger the problem That's because Zen2 has this MSR - 0xc000010f - so the write succeeds. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette