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Tue, 19 Jul 2022 10:42:00 +0100 Date: Tue, 19 Jul 2022 10:41:59 +0100 Message-ID: <87lespzbfc.wl-maz@kernel.org> From: Marc Zyngier To: Vincent Donnefort Cc: Will Deacon , kvmarm@lists.cs.columbia.edu, Ard Biesheuvel , Sean Christopherson , Alexandru Elisei , Andy Lutomirski , Catalin Marinas , James Morse , Chao Peng , Quentin Perret , Suzuki K Poulose , Michael Roth , Mark Rutland , Fuad Tabba , Oliver Upton , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 12/24] KVM: arm64: Introduce shadow VM state at EL2 In-Reply-To: References: <20220630135747.26983-1-will@kernel.org> <20220630135747.26983-13-will@kernel.org> 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/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: vdonnefort@google.com, will@kernel.org, kvmarm@lists.cs.columbia.edu, ardb@kernel.org, seanjc@google.com, alexandru.elisei@arm.com, luto@amacapital.net, catalin.marinas@arm.com, james.morse@arm.com, chao.p.peng@linux.intel.com, qperret@google.com, suzuki.poulose@arm.com, michael.roth@amd.com, mark.rutland@arm.com, tabba@google.com, oliver.upton@linux.dev, kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220719_024206_904965_F36D598B X-CRM114-Status: GOOD ( 16.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 18 Jul 2022 19:40:05 +0100, Vincent Donnefort wrote: > > [...] > > In the end, we don't seem to use much from the struct kvm_cpu. Is it for > convinience that a smaller struct kvm_shadow_cpu hasn't been created, or we do > anticipate a later wider usage? The alternative would be to repaint the whole of the core KVM/arm64 code to be able to take the new structure in parallel with the standard one. There is very little to gain from such a move. M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel