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Thu, 13 Jun 2024 09:42:13 +0100 Date: Thu, 13 Jun 2024 09:42:13 +0100 Message-ID: <86zfrpjkt6.wl-maz@kernel.org> From: Marc Zyngier To: Shaoqin Huang Cc: Oliver Upton , kvmarm@lists.linux.dev, Eric Auger , Sebastian Ott , Cornelia Huck , Catalin Marinas , James Morse , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Paolo Bonzini , Shuah Khan , Suzuki K Poulose , Will Deacon , Zenghui Yu Subject: Re: [RFC PATCH v1 0/2] KVM: arm64: Making BT Field in ID_AA64PFR1_EL1 writable In-Reply-To: <7f1ca739-42f5-4e3a-a0c9-b1eac4522a97@redhat.com> References: <20240612023553.127813-1-shahuang@redhat.com> <8634pilbja.wl-maz@kernel.org> <7f1ca739-42f5-4e3a-a0c9-b1eac4522a97@redhat.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.2 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: shahuang@redhat.com, oliver.upton@linux.dev, kvmarm@lists.linux.dev, eauger@redhat.com, sebott@redhat.com, cohuck@redhat.com, catalin.marinas@arm.com, james.morse@arm.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, pbonzini@redhat.com, shuah@kernel.org, suzuki.poulose@arm.com, will@kernel.org, yuzenghui@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Thu, 13 Jun 2024 09:31:45 +0100, Shaoqin Huang wrote: > > If we don't care about the FEAT_CNTSC right now. Could I fix the > compile issue and respin this again without the background of enabling > migration between MtCollins and AmpereOne, and just keep the > information of the different BT field between different machine? As I said, I think this patch is valuable. But maybe you should consider tackling the full register, rather than only addressing a single field. Thanks, M. -- Without deviation from the norm, progress is not possible.