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([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id l16sm5338164ejb.26.2021.07.06.05.33.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 06 Jul 2021 05:33:36 -0700 (PDT) Subject: Re: [RFC PATCH v2 01/69] KVM: TDX: introduce config for KVM TDX support To: isaku.yamahata@intel.com, Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , erdemaktas@google.com, Connor Kuehl , Sean Christopherson , x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: isaku.yamahata@gmail.com References: <2f265006e5cee03a5a48448c51c3632391e58ec7.1625186503.git.isaku.yamahata@intel.com> From: Paolo Bonzini Message-ID: Date: Tue, 6 Jul 2021 14:33:35 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <2f265006e5cee03a5a48448c51c3632391e58ec7.1625186503.git.isaku.yamahata@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/07/21 00:04, isaku.yamahata@intel.com wrote: > From: Isaku Yamahata > > Add new config KVM_INTEL_TDX for KVM TDX support. This patch introduce > a config only. Later patch will implement feature depends on it. > > Signed-off-by: Isaku Yamahata > --- > arch/x86/kvm/Kconfig | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > index f6b93a35ce14..66622901bf7d 100644 > --- a/arch/x86/kvm/Kconfig > +++ b/arch/x86/kvm/Kconfig > @@ -96,6 +96,17 @@ config X86_SGX_KVM > > If unsure, say N. > > +config KVM_INTEL_TDX > + bool "Trusted Domain eXtensions(TDX) Host support" > + depends on KVM_INTEL && X86_64 > + select FW_LOADER > + > + help > + Extends KVM on Intel processors to support Trusted Domain Extensions. > + Intel Trust Domain eXtensions(TDX) is an architecture based on CPU > + instructions and TDX module to deploy hardware-isolated virtual > + machines(VMs) which is called Trust Domains(TDs). > + > config KVM_AMD > tristate "KVM for AMD processors support" > depends on KVM > Reviewed-by: Paolo Bonzini