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[54.240.197.239]) by smtp.gmail.com with ESMTPSA id h16-20020adfe990000000b0032dc24ae625sm8118864wrm.12.2023.10.30.05.00.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Oct 2023 05:00:20 -0700 (PDT) From: Paul Durrant X-Google-Original-From: Paul Durrant Message-ID: <1f528e23-b58e-483e-8d65-97a822544167@xen.org> Date: Mon, 30 Oct 2023 12:00:16 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Reply-To: Sean Christopherson Subject: Re: [PATCH v7 00/11] KVM: xen: update shared_info and vcpu_info handling Content-Language: en-US To: David Woodhouse , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Paul Durrant , "H. Peter Anvin" , Borislav Petkov , Dave Hansen , Ingo Molnar , Paolo Bonzini , Thomas Gleixner , x86@kernel.org References: <20231002095740.1472907-1-paul@xen.org> <6629b7f0b56e0fb2bad575a1d598cce26b1c6432.camel@infradead.org> Organization: Xen Project In-Reply-To: <6629b7f0b56e0fb2bad575a1d598cce26b1c6432.camel@infradead.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/10/2023 07:41, David Woodhouse wrote: > On Mon, 2023-10-02 at 09:57 +0000, Paul Durrant wrote: >> From: Paul Durrant >> >> The following text from the original cover letter still serves as an >> introduction to the series: >> >> "Currently we treat the shared_info page as guest memory and the VMM >> informs KVM of its location using a GFN. However it is not guest memory as >> such; it's an overlay page. So we pointlessly invalidate and re-cache a >> mapping to the *same page* of memory every time the guest requests that >> shared_info be mapped into its address space. Let's avoid doing that by >> modifying the pfncache code to allow activation using a fixed userspace HVA >> as well as a GPA." >> >> This version of the series is functionally the same as version 6. I have >> simply added David Woodhouse's R-b to patch 11 to indicate that he has >> now fully reviewed the series. > > Thanks. I believe Sean is probably waiting for us to stop going back > and forth, and for the dust to settle. So for the record: I think I'm > done heckling and this is ready to go in. > Nudge. Sean, is there anything more I need to do on this series? Paul