linux-kernel - Re: [RFC PATCH v5 053/104] KVM: x86/mmu: steal software usable bit for EPT to represent shared page

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Date:   Fri, 15 Apr 2022 17:21:03 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     isaku.yamahata@...el.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     isaku.yamahata@...il.com, Jim Mattson <jmattson@...gle.com>,
        erdemaktas@...gle.com, Connor Kuehl <ckuehl@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>
Subject: Re: [RFC PATCH v5 053/104] KVM: x86/mmu: steal software usable bit
 for EPT to represent shared page

On 3/4/22 20:49, isaku.yamahata@...el.com wrote:
> +/* Masks that used to track for shared GPA **/
> +#define SPTE_PRIVATE_PROHIBIT	BIT_ULL(62)
> +

Please rename this to SPTE_SHARED_MAPPING_MASK, or even just 
SPTE_SHARED_MASK.

Paolo