linux-kernel - Re: [PATCH v9 15/19] KVM: selftests: Hook TDX support to vm and vcpu creation

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Message-ID: <94f1eeb5-35c2-4edf-ace7-6917b06bb4bc@intel.com>
Date: Tue, 26 Aug 2025 16:28:23 +0800
From: Chenyi Qiang <chenyi.qiang@...el.com>
To: Sagi Shahar <sagis@...gle.com>, <linux-kselftest@...r.kernel.org>, "Paolo
 Bonzini" <pbonzini@...hat.com>, Shuah Khan <shuah@...nel.org>, "Sean
 Christopherson" <seanjc@...gle.com>, Ackerley Tng <ackerleytng@...gle.com>,
	Ryan Afranji <afranji@...gle.com>, Andrew Jones <ajones@...tanamicro.com>,
	Isaku Yamahata <isaku.yamahata@...el.com>, Erdem Aktas
	<erdemaktas@...gle.com>, Rick Edgecombe <rick.p.edgecombe@...el.com>, "Roger
 Wang" <runanwang@...gle.com>, Binbin Wu <binbin.wu@...ux.intel.com>, "Oliver
 Upton" <oliver.upton@...ux.dev>, "Pratik R. Sampat"
	<pratikrajesh.sampat@....com>, Reinette Chatre <reinette.chatre@...el.com>,
	Ira Weiny <ira.weiny@...el.com>, Chao Gao <chao.gao@...el.com>
CC: <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>
Subject: Re: [PATCH v9 15/19] KVM: selftests: Hook TDX support to vm and vcpu
 creation



On 8/21/2025 12:29 PM, Sagi Shahar wrote:
> TDX require special handling for VM and VCPU initialization for various

s/require/requires

> reasons:
> - Special ioctlss for creating VM and VCPU.

s/ioctlss/ioctls

> - TDX registers are inaccessible to KVM.
> - TDX require special boot code trampoline for loading parameters.

s/require/requires

> - TDX only supports KVM_CAP_SPLIT_IRQCHIP.
> 
> Hook this special handling into __vm_create() and vm_arch_vcpu_add()
> using the utility functions added in previous patches.
> 
> Signed-off-by: Sagi Shahar <sagis@...gle.com>
> ---
>  tools/testing/selftests/kvm/lib/kvm_util.c    | 24 ++++++++-
>  .../testing/selftests/kvm/lib/x86/processor.c | 49 ++++++++++++++-----
>  2 files changed, 61 insertions(+), 12 deletions(-)
>