linux-kernel - Re: [PATCH] KVM: x86/mmu: Guard against collision with KVM-defined PFERR_IMPLICIT

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Date:   Sat, 29 Jul 2023 10:58:16 -0400
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: x86/mmu: Guard against collision with KVM-defined PFERR_IMPLICIT_ACCESS

> WARN so that any such conflict can be surfaced to KVM developers and
> resolved, but otherwise ignore the bit as KVM can't possibly rely on a
> flag it knows nothing about.
>
> Fixes: 4f4aa80e3b88 ("KVM: X86: Handle implicit supervisor access with SMAP")
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Paolo Bonzini <pbonzini@...hat.com>

Paolo