Re: [RFC PATCH v5 006/104] KVM: TDX: Add placeholders for TDX VM/vcpu structure

[Paolo Bonzini]

On 3/4/22 20:48, isaku.yamahata@xxxxxxxxx wrote:
> +void __init tdx_pre_kvm_init(unsigned int *vcpu_size,
> +			unsigned int *vcpu_align, unsigned int *vm_size)
> +{
> +	*vcpu_size = sizeof(struct vcpu_tdx);
> +	*vcpu_align = __alignof__(struct vcpu_tdx);
> +
> +	if (sizeof(struct kvm_tdx) > *vm_size)
> +		*vm_size = sizeof(struct kvm_tdx);
> +}

No need for this function, I would just do

	vcpu_size = max(sizeof vcpu_vmx, sizeof vcpu_tdx);
	vcpu_align = max(...);
	vt_x86_ops.vm_size = max(...);

in vt_init.

Paolo