linux-kernel - Re: [PATCH V4 6/15] KVM/MMU: Flush tlb directly in the kvm_set_pte

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Message-ID: <09105529-2684-164c-1284-7d3d6245c177@redhat.com>
Date:   Mon, 15 Oct 2018 13:52:42 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     lantianyu1986@...il.com
Cc:     Lan Tianyu <Tianyu.Lan@...rosoft.com>, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com, tglx@...utronix.de,
        mingo@...hat.com, hpa@...or.com, x86@...nel.org,
        rkrcmar@...hat.com, devel@...uxdriverproject.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        michael.h.kelley@...rosoft.com, vkuznets@...hat.com
Subject: Re: [PATCH V4 6/15] KVM/MMU: Flush tlb directly in the
 kvm_set_pte_rmapp()

On 13/10/2018 16:53, lantianyu1986@...il.com wrote:
> @@ -1781,6 +1781,11 @@ static int kvm_set_pte_rmapp(struct kvm *kvm, struct kvm_rmap_head *rmap_head,
>  		}
>  	}
>  
> +	if (need_flush && kvm_available_flush_tlb_with_range()) {
> +		kvm_flush_remote_tlbs_with_address(kvm, gfn, 1);
> +		return 0;
> +	}
> +

Here you're passing an L1 GPA, not an L2 GPA.  Is it correct?

Paolo