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[31.30.173.70]) by smtp.gmail.com with ESMTPSA id gs14sm5894820ejc.183.2021.12.28.01.38.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Dec 2021 01:38:09 -0800 (PST) Date: Tue, 28 Dec 2021 10:38:07 +0100 From: Andrew Jones To: Marc Zyngier Cc: Paolo Bonzini , James Morse , Suzuki K Poulose , Alexandru Elisei , kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com Subject: Re: [PATCH v2 6/6] KVM: selftests: arm64: Add support for various modes with 16kB page size Message-ID: <20211228093807.4s46hte4ilbjmxz7@gator.home> References: <20211227124809.1335409-1-maz@kernel.org> <20211227124809.1335409-7-maz@kernel.org> MIME-Version: 1.0 In-Reply-To: <20211227124809.1335409-7-maz@kernel.org> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=drjones@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211228_013814_718866_EF5D59DE X-CRM114-Status: GOOD ( 13.52 ) 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, Dec 27, 2021 at 12:48:09PM +0000, Marc Zyngier wrote: > The 16kB page size is not a popular choice, due to only a few CPUs > actually implementing support for it. However, it can lead to some > interesting performance improvements given the right uarch choices. > > Add support for this page size for various PA/VA combinations. > > Signed-off-by: Marc Zyngier > --- > tools/testing/selftests/kvm/include/kvm_util.h | 4 ++++ > .../selftests/kvm/lib/aarch64/processor.c | 10 ++++++++++ > tools/testing/selftests/kvm/lib/guest_modes.c | 4 ++++ > tools/testing/selftests/kvm/lib/kvm_util.c | 16 ++++++++++++++++ > 4 files changed, 34 insertions(+) > Reviewed-by: Andrew Jones _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel