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Re: [XEN PATCH v1 02/15] x86/hvm: guard AMD-V and Intel VT-x hvm_function_table initializers
- To: Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 18 Apr 2024 13:18:56 +0200
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- Cc: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Xenia Ragiadakou <xenia.ragiadakou@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 18 Apr 2024 11:19:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 16.04.2024 08:22, Sergiy Kibrik wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -156,9 +156,9 @@ static int __init cf_check hvm_enable(void)
> {
> const struct hvm_function_table *fns = NULL;
>
> - if ( cpu_has_vmx )
> + if ( IS_ENABLED(CONFIG_VMX) && cpu_has_vmx )
> fns = start_vmx();
> - else if ( cpu_has_svm )
> + else if ( IS_ENABLED(CONFIG_SVM) && cpu_has_svm )
> fns = start_svm();
Do we have or do we foresee any uses of cpu_has_{vmx,svm} that are relevant
when CONFIG_{VMX,SVM}=n respectively? If not, I'd prefer if the IS_ENABLED()
would be folded right into the definitions of cpu_has_{vmx,svm}, as is
already done for a few other CONFIG_*.
Jan
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