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=-3.6 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 3E138C432BE for ; Fri, 27 Aug 2021 16:56:05 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C42EE6056C for ; Fri, 27 Aug 2021 16:56:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C42EE6056C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 2774A6B006C; Fri, 27 Aug 2021 12:56:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 226FC6B0071; Fri, 27 Aug 2021 12:56:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 117E48D0001; Fri, 27 Aug 2021 12:56:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0111.hostedemail.com [216.40.44.111]) by kanga.kvack.org (Postfix) with ESMTP id EC0ED6B006C for ; Fri, 27 Aug 2021 12:56:03 -0400 (EDT) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 94BE28249980 for ; Fri, 27 Aug 2021 16:56:03 +0000 (UTC) X-FDA: 78521463006.06.330EEA1 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf20.hostedemail.com (Postfix) with ESMTP id 4440AD0000A9 for ; Fri, 27 Aug 2021 16:55:55 +0000 (UTC) Received: from zn.tnic (p200300ec2f1117008c66b42124dc6a0e.dip0.t-ipconnect.de [IPv6:2003:ec:2f11:1700:8c66:b421:24dc:6a0e]) (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 91BF81EC0453; Fri, 27 Aug 2021 18:55:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1630083346; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=aUIFMqNpBxjAGkdg6iAwim6KAU9KWJiRd8wcruSmexk=; b=I1h1RKAoUHGmeXJ4kkuRnowXBcM3b71SUtfhRYVQSGpQpskB0KgGgSGAc6spXl+eV/pZ7h VaXItU7p5N7MhDfnQ7UvLxIpnh1VImhJ5qewIYQvYtnAlq2dZHYQzALwgSeinIr7JoAOKQ cocjbkwIdkj5PrLsibmWvOHTxtgh3ig= Date: Fri, 27 Aug 2021 18:56:23 +0200 From: Borislav Petkov To: Brijesh Singh Cc: x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-coco@lists.linux.dev, linux-mm@kvack.org, Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , Dov Murik , Tobin Feldman-Fitzthum , Michael Roth , Vlastimil Babka , "Kirill A . Shutemov" , Andi Kleen , tony.luck@intel.com, marcorr@google.com, sathyanarayanan.kuppuswamy@linux.intel.com Subject: Re: [PATCH Part1 v5 32/38] x86/sev: enable SEV-SNP-validated CPUID in #VC handlers Message-ID: References: <20210820151933.22401-1-brijesh.singh@amd.com> <20210820151933.22401-33-brijesh.singh@amd.com> <62e8b7f2-4e0d-5836-ea37-9e0a7a797017@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <62e8b7f2-4e0d-5836-ea37-9e0a7a797017@amd.com> Authentication-Results: imf20.hostedemail.com; dkim=temperror ("DNS error when getting key") header.d=alien8.de header.s=dkim header.b=I1h1RKAo; spf=temperror (imf20.hostedemail.com: error in processing during lookup of bp@alien8.de: DNS error) smtp.mailfrom=bp@alien8.de; dmarc=temperror reason="query timed out" header.from=alien8.de (policy=temperror) X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 4440AD0000A9 X-Stat-Signature: o9kgcgr5okdq4c538zn7ycp664h61bcu X-HE-Tag: 1630083355-669739 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Aug 27, 2021 at 10:47:42AM -0500, Brijesh Singh wrote: > Actually a=C2=A0 VMM could populate more than one page for the CPUID. O= ne > page can include 64 entries and I believe Mike is already running into > limits (with Qemu) and exploring the ideas to extend it more than a pag= e. You mean, like, 2 pages? :-) --=20 Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette