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Thu, 15 Apr 2021 18:16:03 +0000 Subject: Re: [PATCH v2 0/8] ccp: KVM: SVM: Use stack for SEV command buffers To: Paolo Bonzini , Sean Christopherson , Brijesh Singh , John Allen , Herbert Xu Cc: Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, Borislav Petkov , Christophe Leroy References: <20210406224952.4177376-1-seanjc@google.com> <3d4ae355-1fc9-4333-643f-f163d32fbe17@amd.com> <88eef561-6fd8-a495-0d60-ff688070cc9e@redhat.com> From: Tom Lendacky Message-ID: <967c3477-f680-2b49-0286-0d3418597d89@amd.com> Date: Thu, 15 Apr 2021 13:15:59 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 In-Reply-To: <88eef561-6fd8-a495-0d60-ff688070cc9e@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [67.79.209.213] X-ClientProxiedBy: SN7PR04CA0021.namprd04.prod.outlook.com (2603:10b6:806:f2::26) To DM5PR12MB1355.namprd12.prod.outlook.com (2603:10b6:3:6e::7) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from office-linux.texastahm.com (67.79.209.213) by SN7PR04CA0021.namprd04.prod.outlook.com (2603:10b6:806:f2::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4042.16 via Frontend Transport; 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Adding Herbert. Here's a link to the series: https://lore.kernel.org/kvm/88eef561-6fd8-a495-0d60-ff688070cc9e@redhat.com/T/#m2bbdd12452970d3bd7d0b1464c22bf2f0227a9f1 I'm not sure how you typically do the cross-tree stuff. Patch 8 has a requirement on patches 1-7. The arch/x86/kvm/svm/sev.c file tends to have more activity/changes than drivers/crypto/ccp/sev-dev.{c,h}, so it would make sense to take it through the KVM tree. But I think you need to verify that with Herbert. Thanks, Tom > > Paolo >