From: Ira Weiny <ira.weiny@intel.com>
To: Sagi Shahar <sagis@google.com>, <linux-kselftest@vger.kernel.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
Shuah Khan <shuah@kernel.org>,
"Sean Christopherson" <seanjc@google.com>,
Ackerley Tng <ackerleytng@google.com>,
Ryan Afranji <afranji@google.com>,
Andrew Jones <ajones@ventanamicro.com>,
Isaku Yamahata <isaku.yamahata@intel.com>,
Erdem Aktas <erdemaktas@google.com>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
"Roger Wang" <runanwang@google.com>,
Binbin Wu <binbin.wu@linux.intel.com>,
"Oliver Upton" <oliver.upton@linux.dev>,
"Pratik R. Sampat" <pratikrajesh.sampat@amd.com>,
Reinette Chatre <reinette.chatre@intel.com>,
Ira Weiny <ira.weiny@intel.com>, Chao Gao <chao.gao@intel.com>,
Chenyi Qiang <chenyi.qiang@intel.com>
Cc: <linux-kernel@vger.kernel.org>, <kvm@vger.kernel.org>
Subject: Re: [PATCH v12 04/23] KVM: selftests: Expose function to allocate guest vCPU stack
Date: Wed, 29 Oct 2025 08:24:14 -0500 [thread overview]
Message-ID: <6902157ec3cc6_20bb411005@iweiny-mobl.notmuch> (raw)
In-Reply-To: <20251028212052.200523-5-sagis@google.com>
Sagi Shahar wrote:
> TDX guests' registers cannot be initialized directly using
> vcpu_regs_set(), hence the stack pointer needs to be initialized by
> the guest itself, running boot code beginning at the reset vector.
>
> Expose the function to allocate the guest stack so that TDX
> initialization code can allocate it itself and skip the allocation in
> vm_arch_vcpu_add() in that case.
>
> Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
> Signed-off-by: Sagi Shahar <sagis@google.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
[snip]
next prev parent reply other threads:[~2025-10-29 13:22 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-28 21:20 [PATCH v12 00/23] TDX KVM selftests Sagi Shahar
2025-10-28 21:20 ` [PATCH v12 01/23] KVM: selftests: Add macros so simplify creating VM shapes for non-default types Sagi Shahar
2025-10-29 1:13 ` Ira Weiny
2025-10-29 6:57 ` Binbin Wu
2025-10-31 3:42 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 02/23] KVM: selftests: Allocate pgd in virt_map() as necessary Sagi Shahar
2025-10-31 3:51 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 03/23] KVM: selftests: Expose functions to get default sregs values Sagi Shahar
2025-10-29 1:40 ` Ira Weiny
2025-10-31 3:43 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 04/23] KVM: selftests: Expose function to allocate guest vCPU stack Sagi Shahar
2025-10-29 13:24 ` Ira Weiny [this message]
2025-10-31 3:52 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 05/23] KVM: selftests: Update kvm_init_vm_address_properties() for TDX Sagi Shahar
2025-10-29 15:22 ` Ira Weiny
2025-10-31 3:53 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 06/23] KVM: selftests: Expose segment definitons to assembly files Sagi Shahar
2025-10-31 3:54 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 07/23] KVM: selftests: Add kbuild definitons Sagi Shahar
2025-10-29 7:43 ` Binbin Wu
2025-10-29 15:46 ` Ira Weiny
2025-10-29 15:55 ` Ira Weiny
2025-10-31 3:56 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 08/23] KVM: selftests: Define structs to pass parameters to TDX boot code Sagi Shahar
2025-10-29 16:37 ` Reinette Chatre
2025-10-30 14:20 ` Sean Christopherson
2025-10-31 4:01 ` Reinette Chatre
2025-11-26 22:32 ` Ira Weiny
2025-12-01 20:28 ` Ira Weiny
2025-10-28 21:20 ` [PATCH v12 09/23] KVM: selftests: Add " Sagi Shahar
2025-10-28 21:20 ` [PATCH v12 10/23] KVM: selftests: Set up TDX boot code region Sagi Shahar
2025-10-28 21:20 ` [PATCH v12 11/23] KVM: selftests: Set up TDX boot parameters region Sagi Shahar
2025-10-29 8:52 ` Binbin Wu
2025-10-29 21:01 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 12/23] KVM: selftests: Add helper to initialize TDX VM Sagi Shahar
2025-10-29 21:16 ` Ira Weiny
2025-10-29 23:01 ` Reinette Chatre
2025-10-30 1:25 ` Binbin Wu
2025-10-31 4:06 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 13/23] KVM: selftests: TDX: Use KVM_TDX_CAPABILITIES to validate TDs' attribute configuration Sagi Shahar
2025-10-29 21:19 ` Ira Weiny
2025-10-30 1:35 ` Binbin Wu
2025-10-28 21:20 ` [PATCH v12 14/23] KVM: selftests: Add helpers to init TDX memory and finalize VM Sagi Shahar
2025-10-29 21:27 ` Ira Weiny
2025-10-30 2:32 ` Binbin Wu
2025-10-31 15:58 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 15/23] KVM: selftests: Call TDX init when creating a new TDX vm Sagi Shahar
2025-10-30 22:20 ` Ira Weiny
2025-10-31 16:03 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 16/23] KVM: selftests: Setup memory regions for TDX on vm creation Sagi Shahar
2025-10-29 13:18 ` Ira Weiny
2025-10-30 6:01 ` Binbin Wu
2025-10-28 21:20 ` [PATCH v12 17/23] KVM: selftests: Call KVM_TDX_INIT_VCPU when creating a new TDX vcpu Sagi Shahar
2025-10-30 6:15 ` Binbin Wu
2025-10-28 21:20 ` [PATCH v12 18/23] KVM: selftests: Set entry point for TDX guest code Sagi Shahar
2025-10-31 16:03 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 19/23] KVM: selftests: Finalize TD memory as part of kvm_arch_vm_finalize_vcpus Sagi Shahar
2025-10-31 13:10 ` Ira Weiny
2025-10-31 16:05 ` Reinette Chatre
2025-10-28 21:20 ` [PATCH v12 20/23] KVM: selftests: Add support for TDX TDCALL from guest Sagi Shahar
2025-10-31 14:11 ` Ira Weiny
2025-10-31 15:15 ` Sean Christopherson
2025-10-31 15:58 ` Sagi Shahar
2025-10-31 16:12 ` Sean Christopherson
2025-10-31 16:01 ` Sean Christopherson
2025-10-28 21:20 ` [PATCH v12 21/23] KVM: selftests: Add wrapper for TDX MMIO " Sagi Shahar
2025-10-31 14:21 ` Ira Weiny
2025-10-28 21:20 ` [PATCH v12 22/23] KVM: selftests: Add ucall support for TDX Sagi Shahar
2025-10-31 14:38 ` Ira Weiny
2025-10-31 15:55 ` Sean Christopherson
2025-10-28 21:20 ` [PATCH v12 23/23] KVM: selftests: Add TDX lifecycle test Sagi Shahar
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