linux-kernel - Re: [PATCH 15/18] KVM: x86/mmu: Dedup logic for detecting TLB flushes on leaf SPTE changes

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Message-ID: <33db440c-40f1-4203-850c-c43e05758335@redhat.com>
Date: Thu, 17 Oct 2024 18:53:37 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: Sean Christopherson <seanjc@...gle.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
 Yan Zhao <yan.y.zhao@...el.com>, Sagi Shahar <sagis@...gle.com>,
 Alex Bennée <alex.bennee@...aro.org>,
 David Matlack <dmatlack@...gle.com>, James Houghton <jthoughton@...gle.com>
Subject: Re: [PATCH 15/18] KVM: x86/mmu: Dedup logic for detecting TLB flushes
 on leaf SPTE changes

On 10/11/24 04:10, Sean Christopherson wrote:
> +static inline bool is_tlb_flush_required_for_leaf_spte(u64 old_spte,
> +						       u64 new_spte)
> +{
> +	return is_mmu_writable_spte(old_spte) && !is_mmu_writable_spte(new_spte);
> +}

Shorter name? leaf_spte_change_needs_tlb_flush?

Paolo