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Message-ID: <c7623704c17f3ea2622b700dde525522701c02c7.camel@infradead.org>
Subject: Re: [PATCH v9 08/15] KVM: pfncache: allow a cache to be activated
 with a fixed (userspace) HVA
From:   David Woodhouse <dwmw2@infradead.org>
To:     Paul Durrant <paul@xen.org>,
        Sean Christopherson <seanjc@google.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Date:   Wed, 22 Nov 2023 12:25:05 +0000
In-Reply-To: <20231122121822.1042-9-paul@xen.org>
References: <20231122121822.1042-1-paul@xen.org>
         <20231122121822.1042-9-paul@xen.org>
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On Wed, 2023-11-22 at 12:18 +0000, Paul Durrant wrote:
> From: Paul Durrant <pdurrant@amazon.com>
>=20
> Some pfncache pages may actually be overlays on guest memory that have a
> fixed HVA within the VMM. It's pointless to invalidate such cached
> mappings if the overlay is moved so allow a cache to be activated directl=
y
> with the HVA to cater for such cases. A subsequent patch will make use
> of this facility.
>=20
> Signed-off-by: Paul Durrant <pdurrant@amazon.com>

I like that better now. Thank you.

Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>


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