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KVM: VMX: Clean up vmx_flush_tlb_gva()

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Refactor vmx_flush_tlb_gva() to remove a superfluous local variable and
clean up its comment, which is oddly located below the code it is
commenting.

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200320212833.3507-16-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-03-20 14:28:11 -07:00 committed by Paolo Bonzini
parent 0baedd7927
commit ad104b5e43
1 changed files with 3 additions and 7 deletions
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10
arch/x86/kvm/vmx/vmx.c
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@ -2840,15 +2840,11 @@ static void exit_lmode(struct kvm_vcpu *vcpu)
static void vmx_flush_tlb_gva(struct kvm_vcpu *vcpu, gva_t addr)
{
int vpid = to_vmx(vcpu)->vpid;
vpid_sync_vcpu_addr(vpid, addr);
/*
* If VPIDs are not supported or enabled, then the above is a no-op.
* But we don't really need a TLB flush in that case anyway, because
* each VM entry/exit includes an implicit flush when VPID is 0.
* vpid_sync_vcpu_addr() is a nop if vmx->vpid==0, see the comment in
* vmx_flush_tlb_guest() for an explanation of why this is ok.
*/
vpid_sync_vcpu_addr(to_vmx(vcpu)->vpid, addr);
}
static void vmx_flush_tlb_guest(struct kvm_vcpu *vcpu)