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Date: Fri, 29 Mar 2024 14:22:12 +0800
From: Binbin Wu <binbin.wu@...ux.intel.com>
To: Isaku Yamahata <isaku.yamahata@...el.com>, Chao Gao <chao.gao@...el.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
 isaku.yamahata@...il.com, Paolo Bonzini <pbonzini@...hat.com>,
 erdemaktas@...gle.com, Sean Christopherson <seanjc@...gle.com>,
 Sagi Shahar <sagis@...gle.com>, Kai Huang <kai.huang@...el.com>,
 chen.bo@...el.com, hang.yuan@...el.com, tina.zhang@...el.com,
 Sean Christopherson <sean.j.christopherson@...el.com>,
 isaku.yamahata@...ux.intel.com
Subject: Re: [PATCH v19 038/130] KVM: TDX: create/destroy VM structure



On 3/21/2024 10:17 PM, Isaku Yamahata wrote:
> On Wed, Mar 20, 2024 at 01:12:01PM +0800,
> Chao Gao <chao.gao@...el.com> wrote:
>
>>> config KVM_SW_PROTECTED_VM
>>> 	bool "Enable support for KVM software-protected VMs"
>>> -	depends on EXPERT

This change is not needed, right?
Since you intended to use KVM_GENERIC_PRIVATE_MEM, not KVM_SW_PROTECTED_VM.

>>> 	depends on KVM && X86_64
>>> 	select KVM_GENERIC_PRIVATE_MEM
>>> 	help
>>> @@ -89,6 +88,8 @@ config KVM_SW_PROTECTED_VM
>>> config KVM_INTEL
>>> 	tristate "KVM for Intel (and compatible) processors support"
>>> 	depends on KVM && IA32_FEAT_CTL
>>> +	select KVM_SW_PROTECTED_VM if INTEL_TDX_HOST
>> why does INTEL_TDX_HOST select KVM_SW_PROTECTED_VM?
> I wanted KVM_GENERIC_PRIVATE_MEM.  Ah, we should do
>
>          select KKVM_GENERIC_PRIVATE_MEM if INTEL_TDX_HOST
>
>
>>> +	select KVM_GENERIC_MEMORY_ATTRIBUTES if INTEL_TDX_HOST
>>> 	help
>>> 	.vcpu_precreate = vmx_vcpu_precreate,
>>> 	.vcpu_create = vmx_vcpu_create,
>>
[...]

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