Re: [PATCH] KVM: vmx: rename KVM_GUEST_CR0_MASK tp KVM_VM_CR0_ALWAYS_OFF

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On 13/07/2018 17:42, Sean Christopherson wrote:
> The KVM_GUEST_CR0_MASK macro tracks CR0 bits that are forced to zero
> by the VMX architecture, i.e. CR0.{NW,CD} must always be zero in the
> hardware CR0 post-VMXON.  Rename the macro to clarify its purpose,
> be consistent with KVM_VM_CR0_ALWAYS_ON and avoid confusion with the
> CR0_GUEST_HOST_MASK field.
> 
> Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
> ---
>  arch/x86/kvm/vmx.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
> index 1689f433f3a0..d7dbba7a61c6 100644
> --- a/arch/x86/kvm/vmx.c
> +++ b/arch/x86/kvm/vmx.c
> @@ -131,7 +131,7 @@ static bool __read_mostly enable_preemption_timer = 1;
>  module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO);
>  #endif
>  
> -#define KVM_GUEST_CR0_MASK (X86_CR0_NW | X86_CR0_CD)
> +#define KVM_VM_CR0_ALWAYS_OFF (X86_CR0_NW | X86_CR0_CD)
>  #define KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST X86_CR0_NE
>  #define KVM_VM_CR0_ALWAYS_ON				\
>  	(KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST | 	\
> @@ -4904,7 +4904,7 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
>  	struct vcpu_vmx *vmx = to_vmx(vcpu);
>  	unsigned long hw_cr0;
>  
> -	hw_cr0 = (cr0 & ~KVM_GUEST_CR0_MASK);
> +	hw_cr0 = (cr0 & ~KVM_VM_CR0_ALWAYS_OFF);
>  	if (enable_unrestricted_guest)
>  		hw_cr0 |= KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST;
>  	else {
> 

Queued now, thanks!

Paolo



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