linux-kernel - Re: [PATCH v7 3/9] mmu: spp: Add SPP Table setup functions

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Date:   Thu, 21 Nov 2019 22:55:05 +0800
From:   Yang Weijiang <weijiang.yang@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Yang Weijiang <weijiang.yang@...el.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, jmattson@...gle.com,
        sean.j.christopherson@...el.com, yu.c.zhang@...ux.intel.com,
        alazar@...defender.com, edwin.zhai@...el.com
Subject: Re: [PATCH v7 3/9] mmu: spp: Add SPP Table setup functions

On Thu, Nov 21, 2019 at 11:38:18AM +0100, Paolo Bonzini wrote:
> On 19/11/19 09:49, Yang Weijiang wrote:
> > +static int is_spp_shadow_present(u64 pte)
> > +{
> > +	return pte & PT_PRESENT_MASK;
> > +}
> > +
> 
> This should not be needed, is_shadow_present_pte works well for SPP PTEs
> as well (and in fact you're already using it here and there, so it's
> confusing to have both).
>
OK, will remove it.
> Paolo