From: Binbin Wu <binbin.wu@linux.intel.com>
To: Lisa Wang <wyihan@google.com>
Cc: Andrew Jones <ajones@ventanamicro.com>,
Ackerley Tng <ackerleytng@google.com>,
Chao Gao <chao.gao@intel.com>,
Chenyi Qiang <chenyi.qiang@intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Erdem Aktas <erdemaktas@google.com>,
Ira Weiny <iweiny@kernel.org>,
Isaku Yamahata <isaku.yamahata@intel.com>,
Kiryl Shutsemau <kas@kernel.org>,
linux-kselftest@vger.kernel.org,
Paolo Bonzini <pbonzini@redhat.com>,
"Pratik R. Sampat" <pratikrajesh.sampat@amd.com>,
Reinette Chatre <reinette.chatre@intel.com>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Roger Wang <runanwang@google.com>,
Ryan Afranji <afranji@google.com>, Sagi Shahar <sagis@google.com>,
Sean Christopherson <seanjc@google.com>,
Shuah Khan <shuah@kernel.org>, Xiaoyao Li <xiaoyao.li@intel.com>,
Oliver Upton <oupton@kernel.org>,
Jeremiah McReynolds <jmcrey@google.com>,
kvm@vger.kernel.org, linux-coco@lists.linux.dev,
linux-kernel@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH v16 03/20] KVM: selftests: Initialize the TDX VM
Date: Mon, 9 Nov 2026 13:58:51 +0800 [thread overview]
Message-ID: <d28422d6-7ac6-48ad-a28b-553ba724581b@linux.intel.com> (raw)
In-Reply-To: <20261105-tdx-selftests-v16-3-2024e8fa517a@google.com>
On 11/6/2026 7:46 AM, Lisa Wang wrote:
> From: Sagi Shahar <sagis@google.com>
>
> Add tdx_init_vm() to handle the mandatory VM-level initialization
> sequence required for Intel TDX.
>
> For TDX, the VM's CPUID configuration must be "sealed" during
> KVM_TDX_INIT_VM before any vCPUs are created. This is necessary because
> the TDX module does not allow the host to create and initialize any
> vCPUs before the VM's CPUID configuration is accepted and sealed into
> the TDCS.
>
> Additionally, to satisfy the strict requirements of the TDH.MNG.INIT
> SEAMCALL, the helper masks the KVM-supported CPUID
> (kvm_get_supported_cpuid()) against the "directly configurable" bits
> reported by KVM_TDX_CAPABILITIES.
>
> Co-developed-by: Isaku Yamahata <isaku.yamahata@intel.com>
> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
> Co-developed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
> Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
> Signed-off-by: Sagi Shahar <sagis@google.com>
> Signed-off-by: Lisa Wang <wyihan@google.com>
> Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
next prev parent reply other threads:[~2026-11-09 5:59 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-05 23:46 [PATCH v16 00/20] TDX KVM selftests Lisa Wang
2026-11-05 23:46 ` [PATCH v16 01/20] KVM: selftests: Add macros to simplify creating VM shapes for non-default types Lisa Wang
2026-11-05 23:46 ` [PATCH v16 02/20] KVM: selftests: Update kvm_init_vm_address_properties() for TDX Lisa Wang
2026-11-05 23:46 ` [PATCH v16 03/20] KVM: selftests: Initialize the TDX VM Lisa Wang
2026-11-09 5:58 ` Binbin Wu [this message]
2026-11-05 23:46 ` [PATCH v16 04/20] KVM: selftests: Expose segment definitions to assembly files Lisa Wang
2026-11-05 23:46 ` [PATCH v16 05/20] tools: include: Add kbuild.h for assembly structure offsets Lisa Wang
2026-11-05 23:46 ` [PATCH v16 06/20] KVM: selftests: Introduce structures for TDX guest boot parameters Lisa Wang
2026-11-05 23:46 ` [PATCH v16 07/20] KVM: selftests: Add TDX boot code Lisa Wang
2026-11-05 23:46 ` [PATCH v16 08/20] KVM: selftests: Expose functions to get default sregs values Lisa Wang
2026-11-05 23:46 ` [PATCH v16 09/20] KVM: selftests: Set up TDX boot code region Lisa Wang
2026-11-05 23:46 ` [PATCH v16 10/20] KVM: selftests: Set up TDX boot parameters region Lisa Wang
2026-11-05 23:46 ` [PATCH v16 11/20] KVM: selftests: Require guest_memfd for TDX VMs Lisa Wang
2026-11-05 23:46 ` [PATCH v16 12/20] KVM: selftests: Call KVM_TDX_INIT_VCPU when creating a new TDX vcpu Lisa Wang
2026-11-05 23:46 ` [PATCH v16 13/20] KVM: selftests: Load per-vCPU guest stack in TDX boot parameters Lisa Wang
2026-11-05 23:46 ` [PATCH v16 14/20] KVM: selftests: Set entry point for TDX guest code Lisa Wang
2026-11-05 23:46 ` [PATCH v16 15/20] KVM: selftests: Add helpers to init TDX memory and finalize VM Lisa Wang
2026-11-05 23:47 ` [PATCH v16 16/20] KVM: selftests: Load private memory and finalize TDX VM in kvm_arch_vm_finalize_vcpus() Lisa Wang
2026-11-05 23:47 ` [PATCH v16 17/20] KVM: selftests: Add a helper to issue TDVMCALLs from the TDX vm Lisa Wang
2026-11-05 23:47 ` [PATCH v16 18/20] KVM: selftests: Add support for per-VM ucall ops on x86 Lisa Wang
2026-11-06 16:47 ` [PATCH v16.1] KVM: selftests: Add support for TDX ucalls, via TDVMCALL_REPORT_FATAL_ERROR Sean Christopherson
2026-11-05 23:47 ` [PATCH v16 19/20] " Lisa Wang
2026-11-05 23:47 ` [PATCH v16 20/20] KVM: selftests: Add TDX lifecycle test Lisa Wang
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