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Wed, 6 Nov 2024 17:04:37 +0000 Received: from [192.168.12.4] (10.187.171.30) by EX19D003UWC002.ant.amazon.com (10.13.138.169) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1258.35; Wed, 6 Nov 2024 17:04:34 +0000 Message-ID: <7ad5d114-3d19-4c33-bb3c-7f8940ad114e@amazon.com> Date: Wed, 6 Nov 2024 10:04:27 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , References: Subject: RE: [RFC PATCH v3 0/6] Direct Map Removal for guest_memfd Content-Language: en-US From: "Manwaring, Derek" In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.187.171.30] X-ClientProxiedBy: EX19D032UWB002.ant.amazon.com (10.13.139.190) To EX19D003UWC002.ant.amazon.com (10.13.138.169) X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 0E5CA40011 X-Stat-Signature: w98zh48jiowidfi5gexje9tqcu9afxfi X-Rspam-User: X-HE-Tag: 1730912634-996075 X-HE-Meta: U2FsdGVkX1/M/bnt0G7sYVy9SCblGnWwbauj64DhuenChXwDo5XzqsrFTSBxkRZ5oKIV9aLkU1KPzn1Sj4wP5zsoleONe23xiZogrfY9pEIuoKJW9EsUZdSNvgYqczltu+rSkiihI4Nu90K4DkJ2M2OaOu1+Pk+EdLoM09gMk1VHfG3EBXzJHgo2RypmJ9IsiNJfjHLwckwGrijh1pVpCmOLVn4P/zYuLByXedxFrujalEpEVxlOrAQjzjz+tDO6bkinTYxykEFDjjxBo7brNlrcCNTKK22RsaByIqI72h3N+Ip+fwwQmz7UjZyU836qCfZNOcyaV6Vm20Khqh4agrv74e37Z3lgyiOqTX5mwVBplL2Fgo90PZh5U3IgetlTeY53dnguPts79o0uDupMC4copYGwaBa4uUhHxuy6WQmvcvlbtV3ZExI356KxnsP+iohScFeg7S4XbnaEuH9pBbmgKGs0POzBW+GDDTIG1wIxsPH5T5dX/0wzhAXQr09Uavc5/fntVCT7cytjDtUs3MyYZmFXF7eXK43onW9wx7pCDPn+jtihWd4FgklMlqcZwQ/FsmN/R5+YFlLG5ULtjKy4foECVUv3453XEJ9/f2mQDg/0iQHup5zRKV+FrBqiXih+xJQl/Oqocf7ySl0i6pOvEK5UNJpaUS6gRZUVmvCGgRtOUG9OND9sm6pNbNixD9N8DliyfUvqbHqT4fxrYMbjmbWdp1/GK+K9xZ94DzSTM4mdHM58FOxrG/0CljsIq4ZmrZrly4VDrT0fZFW30RYwnI1ctJ3cMk/tQ5k+lR59bWX+yMsqA4FiazImySKS5frsLyIP32Q8ttsxPvtJMrZ5zB2ZBhjfHOviJsaGc3TLjouy2wjchY/zzzv0/JkdGEQGvxh21fzbTzoct/QW7na+uWX6UdJHrLYziRD6eKpsc0jnwd12p9AW1CZdoo/KKCKPQHR4x4iKqQr95wZ 9M/DZdGG 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.027112, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2024-11-04 at 08:33+0000, Elena Reshetova wrote: > This statement *is* for integrity section. We have a separate TDX guidance > on side-channels (including speculative) [3] and some speculative attacks > that affect confidentiality (for example spectre v1) are listed as not covered > by TDX but remaining SW responsibility (as they are now). Thanks for the additional info, Elena. Given that clarification, I definitely see direct map removal and TDX as complementary. Derek