linux-kernel - Re: [PATCH v12 15/23] KVM: selftests: Call TDX init when creating a new TDX vm

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Message-ID: <6903e4bd470bf_23147410098@iweiny-mobl.notmuch>
Date: Thu, 30 Oct 2025 17:20:45 -0500
From: Ira Weiny <ira.weiny@...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>, Chenyi Qiang
	<chenyi.qiang@...el.com>
CC: <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>
Subject: Re: [PATCH v12 15/23] KVM: selftests: Call TDX init when creating a
 new TDX vm

Sagi Shahar wrote:
> TDX VMs need to issue the KVM_TDX_INIT_VM ioctl after VM creation to
> initialize the TD. This ioctl also sets the cpuids and attributes for
> the VM.
> 
> At this point we can also set the common boot parameters such as CR3,

Avoid 'we'.

> CR4, etc. These parameters will get copied to the relevant registers by
> the TD boot code trampoline.
> 
> Signed-off-by: Sagi Shahar <sagis@...gle.com>
> 
> ---------------------------------------------
> 
> Changes from v10:
>  * The call to vm_tdx_load_common_boot_parameters() was accidently
>    dropped as part of the refactor from v9 to v10. I re-added it here.

This can be dropped as well.

Ira

[snip]