[LTP] [PATCH 3/5] KVM: Simplify reading VMX control field masks

Petr Vorel pvorel@suse.cz
Wed Apr 16 09:16:21 CEST 2025


Hi Martin,

> Hi Martin,

> ...
> >  	/* Configure VM execution control fields */
> > -	if (kvm_rdmsr(MSR_IA32_VMX_BASIC) & IA32_VMXBASIC_USELESS_CTL_MASKS) {
> > -		pinxctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_PINX_MASK2);
> > -		execctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_EXECCTL_MASK2);
> > -		exitctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_EXITCTL_MASK2);
> > -		entryctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_ENTRYCTL_MASK2);
> > -	} else {
> > -		pinxctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_PINX_MASK);
> > -		execctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_EXECCTL_MASK);
> > -		exitctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_EXITCTL_MASK);
> > -		entryctl = (uint32_t)kvm_rdmsr(MSR_IA32_VMX_ENTRYCTL_MASK);

The rest of the patchset merged, thank you!

> I guess you're going to use in the future MSR_IA32_VMX_PINX_MASK2 and other
> deleted masks (because now they are IMHO only in the structs).

If you don't need the constants in the future, please remove it in a subsequent
patch.

Kind regards,
Petr

> Acked-by: Petr Vorel <pvorel@suse.cz>

> Kind regards,
> Petr

> > -	}
> > +	pinxctl = (uint32_t)kvm_vmx_read_vmctl_mask(VMX_CTLMASK_PINX);
> > +	execctl = (uint32_t)kvm_vmx_read_vmctl_mask(VMX_CTLMASK_EXECCTL);
> > +	exitctl = (uint32_t)kvm_vmx_read_vmctl_mask(VMX_CTLMASK_EXITCTL);
> > +	entryctl = (uint32_t)kvm_vmx_read_vmctl_mask(VMX_CTLMASK_ENTRYCTL);


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