linux-kernel - Re: [PATCH] KVM: x86: fix overlap between SPTE_MMIO

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Message-ID: <41696542-3022-c794-cc43-66aa0aff5b46@redhat.com>
Date:   Wed, 22 Jan 2020 15:35:36 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Ben Gardon <bgardon@...gle.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Sean Christopherson <sean.j.christopherson@...el.com>
Subject: Re: [PATCH] KVM: x86: fix overlap between SPTE_MMIO_MASK and
 generation

On 21/01/20 18:24, Ben Gardon wrote:
> BUILD_BUG_ON((MMIO_SPTE_GEN_HIGH_MASK |
> MMIO_SPTE_GEN_LOW_MASK) & SPTE_SPECIAL_MASK)
> 

Yes, this is a better assertion.  I've replaced it in the patch.

Paolo