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([2a09:80c0:192:0:5dac:bf3d:c41:c3e7]) by smtp.gmail.com with ESMTPSA id x8-20020a5d60c8000000b002cea8664304sm7175075wrt.91.2023.03.16.05.57.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 16 Mar 2023 05:57:17 -0700 (PDT) Message-ID: <6467e120-67d4-84c6-20cc-c6426ea9e877@redhat.com> Date: Thu, 16 Mar 2023 13:57:16 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v10 03/16] x86/virt/tdx: Make INTEL_TDX_HOST depend on X86_X2APIC Content-Language: en-US To: Kai Huang , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: linux-mm@kvack.org, dave.hansen@intel.com, peterz@infradead.org, tglx@linutronix.de, seanjc@google.com, pbonzini@redhat.com, dan.j.williams@intel.com, rafael.j.wysocki@intel.com, kirill.shutemov@linux.intel.com, ying.huang@intel.com, reinette.chatre@intel.com, len.brown@intel.com, tony.luck@intel.com, ak@linux.intel.com, isaku.yamahata@intel.com, chao.gao@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com, bagasdotme@gmail.com, sagis@google.com, imammedo@redhat.com References: From: David Hildenbrand Organization: Red Hat In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06.03.23 15:13, Kai Huang wrote: > TDX capable platforms are locked to X2APIC mode and cannot fall back to > the legacy xAPIC mode when TDX is enabled by the BIOS. TDX host support > requires x2APIC. Make INTEL_TDX_HOST depend on X86_X2APIC. > > Link: https://lore.kernel.org/lkml/ba80b303-31bf-d44a-b05d-5c0f83038798@intel.com/ > Signed-off-by: Kai Huang > Reviewed-by: Dave Hansen > --- Reviewed-by: David Hildenbrand -- Thanks, David / dhildenb