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30 Nov 2022 14:26:12 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10547"; a="707823341" X-IronPort-AV: E=Sophos;i="5.96,207,1665471600"; d="scan'208";a="707823341" Received: from xwang-mobl1.amr.corp.intel.com (HELO [10.212.177.221]) ([10.212.177.221]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2022 14:26:09 -0800 Message-ID: Date: Wed, 30 Nov 2022 14:26:07 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Subject: Re: [PATCH v7 10/20] x86/virt/tdx: Use all system memory when initializing TDX module as TDX memory Content-Language: en-US To: "Huang, Kai" , "Williams, Dan J" , "peterz@infradead.org" Cc: "kvm@vger.kernel.org" , "Luck, Tony" , "bagasdotme@gmail.com" , "ak@linux.intel.com" , "Wysocki, Rafael J" , "kirill.shutemov@linux.intel.com" , "Christopherson,, Sean" , "Chatre, Reinette" , "pbonzini@redhat.com" , "linux-mm@kvack.org" , "Yamahata, Isaku" , "linux-kernel@vger.kernel.org" , "Shahar, Sagi" , "imammedo@redhat.com" , "Gao, Chao" , "Brown, Len" , "sathyanarayanan.kuppuswamy@linux.intel.com" , "Huang, Ying" References: <9b545148275b14a8c7edef1157f8ec44dc8116ee.1668988357.git.kai.huang@intel.com> <637ecded7b0f9_160eb329418@dwillia2-xfh.jf.intel.com.notmuch> <699700de9d63fa72fda4620d052fda3427193b21.camel@intel.com> From: Dave Hansen In-Reply-To: <699700de9d63fa72fda4620d052fda3427193b21.camel@intel.com> Content-Type: text/plain; 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bh=9lP3Cg/g0w9r6u9aBIsXx8p+pG0I8qdLzOPqRdPCBF8=; b=dFIRJTtgHFpvcPvU6TcScm2+VmxIm5TyRTskoYyNFxyzyBKkpM74VMFHRlNg8Xu3ZhUnub JpI1DxbcdymfRqWNn8B6itPwP7Iu+ys8S1FliAM8bLTd8F6N3pAROJjE65eYqsGqfNhVnj q+0C6MD2/QoXdEiYvhjZ+Bj0+OeIJGw= X-Stat-Signature: uru316oyi7mpraem68ip8o1ty98doxx4 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 27137140010 Authentication-Results: imf09.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b="R3M69p3/"; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf09.hostedemail.com: domain of dave.hansen@intel.com designates 192.55.52.115 as permitted sender) smtp.mailfrom=dave.hansen@intel.com X-Rspam-User: X-HE-Tag: 1669847173-474566 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 11/24/22 02:02, Huang, Kai wrote: > Thanks for input. I am fine with 'tdx=force'. > > Although, I'd like to point out KVM will have a module parameter 'enable_tdx'. > > Hi Dave, Sean, do you have any comments? That's fine. Just keep it out of the initial implementation. Ignore it for now,