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Re: [PATCH v2 2/3] x86/svm: Drop the suffix _guest from vmcb bit


  • To: Vaishali Thakkar <vaishali.thakkar@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Tue, 12 Mar 2024 08:59:47 +0100
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  • Cc: andrew.cooper3@xxxxxxxxxx, roger.pau@xxxxxxxxxx, wl@xxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 12 Mar 2024 07:59:55 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 11.03.2024 13:40, Vaishali Thakkar wrote:
> @@ -698,11 +698,11 @@ nsvm_vcpu_vmentry(struct vcpu *v, struct cpu_user_regs 
> *regs,
>      /* Convert explicitely to boolean. Deals with l1 guests
>       * that use flush-by-asid w/o checking the cpuid bits */
>      nv->nv_flushp2m = !!ns_vmcb->tlb_control;
> -    if ( svm->ns_guest_asid != ns_vmcb->_guest_asid )
> +    if ( svm->ns_asid != ns_vmcb->_asid )
>      {
>          nv->nv_flushp2m = 1;
>          hvm_asid_flush_vcpu_asid(&vcpu_nestedhvm(v).nv_n2asid);
> -        svm->ns_guest_asid = ns_vmcb->_guest_asid;
> +        svm->ns_asid = ns_vmcb->_asid;
>      }
>  
>      /* nested paging for the guest */
> @@ -1046,7 +1046,7 @@ nsvm_vmcb_prepare4vmexit(struct vcpu *v, struct 
> cpu_user_regs *regs)
>      /* Keep it. It's maintainted by the l1 guest. */
>  
>      /* ASID */
> -    /* ns_vmcb->_guest_asid = n2vmcb->_guest_asid; */
> +    /* ns_vmcb->_asid = n2vmcb->_asid; */

Unlike in the earlier patch, where I could accept the request to switch
to using accessor functions as scope-creep-ish, here I'm pretty firm
with my request to stop their open-coding at the same time. Unless of
course there's a technical reason the accessors cannot be used here.

Jan



 


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