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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA9A2C433EF for ; Wed, 10 Nov 2021 22:27:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 96B0861186 for ; Wed, 10 Nov 2021 22:27:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 96B0861186 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 2263E6B00D2; Wed, 10 Nov 2021 17:27:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 1D7AA6B00D4; Wed, 10 Nov 2021 17:27:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 052C46B00D5; Wed, 10 Nov 2021 17:27:55 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0125.hostedemail.com [216.40.44.125]) by kanga.kvack.org (Postfix) with ESMTP id E8C6D6B00D2 for ; Wed, 10 Nov 2021 17:27:55 -0500 (EST) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id B0D4A8276B for ; Wed, 10 Nov 2021 22:27:55 +0000 (UTC) X-FDA: 78794459310.29.28820E3 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf18.hostedemail.com (Postfix) with ESMTP id EE0C14002085 for ; Wed, 10 Nov 2021 22:27:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Sender:Reply-To:Content-ID:Content-Description; bh=ajE2E1oSo9dMdca3nNcODp4DAhXTWNhCgu0RAXyw3Ts=; b=zZ9gUMnX+5lgCf/ZDSs2giGD2x pYvIHVANyt+wE9U86AVXKNBSFYn2SLmKPKhTE6Ek4pOcdOtRG2KLOFqI1LF0XYp/+yNnj6do2TwyP qb82kSIOdOwCqoLvUuJIndcEJo+8rihYLaaIad1cR4sk2T3Db5bh73eRBNwPHBYnu0xMVy3BSg9TD qQIOVkzo6aXJM8ba1+5AleepYAoLPnRskqqJEsuhcwxoJHFQlJ8iqSpHX0E3JRwkYml/JtYEyy+Lb 4/claBL7QjKZDCOnJfYjui1utRDVX7teIlBW3dp2cW1jmIBg0rmp2Jq8PsFPp3WoqbmXYvn2A16F1 Tfxz46FQ==; Received: from [2601:1c0:6280:3f0::aa0b] by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mkw3z-006Xsi-SV; Wed, 10 Nov 2021 22:27:27 +0000 Subject: Re: [PATCH v7 43/45] virt: Add SEV-SNP guest driver To: Brijesh Singh , 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 Cc: Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , Dov Murik , Tobin Feldman-Fitzthum , Borislav Petkov , Michael Roth , Vlastimil Babka , "Kirill A . Shutemov" , Andi Kleen , "Dr . David Alan Gilbert" , tony.luck@intel.com, marcorr@google.com, sathyanarayanan.kuppuswamy@linux.intel.com References: <20211110220731.2396491-1-brijesh.singh@amd.com> <20211110220731.2396491-44-brijesh.singh@amd.com> From: Randy Dunlap Message-ID: Date: Wed, 10 Nov 2021 14:27:25 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20211110220731.2396491-44-brijesh.singh@amd.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: EE0C14002085 X-Stat-Signature: ffww1wdwwqnnoqck8h3qtyioseip1k3g Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=zZ9gUMnX; dmarc=none; spf=none (imf18.hostedemail.com: domain of rdunlap@infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=rdunlap@infradead.org X-HE-Tag: 1636583274-945302 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: Hi, On 11/10/21 2:07 PM, Brijesh Singh wrote: > diff --git a/drivers/virt/coco/sevguest/Kconfig b/drivers/virt/coco/sevguest/Kconfig > new file mode 100644 > index 000000000000..96190919cca8 > --- /dev/null > +++ b/drivers/virt/coco/sevguest/Kconfig > @@ -0,0 +1,9 @@ > +config SEV_GUEST > + tristate "AMD SEV Guest driver" > + default y For this to remain as "default y", you need to justify it. E.g., if a board cannot boot with an interrupt controller, the driver for the interrupt controller can be "default y". So why is this default y? No other drivers in drivers/virt/ are default y. > + depends on AMD_MEM_ENCRYPT && CRYPTO_AEAD2 > + help > + The driver can be used by the SEV-SNP guest to communicate with the PSP to > + request the attestation report and more. > + > + If you choose 'M' here, this module will be called sevguest. thanks. -- ~Randy