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Tue, 09 Sep 2025 03:00:13 -0700 (PDT) Date: Tue, 9 Sep 2025 10:00:03 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.51.0.384.g4c02a37b29-goog Message-ID: <20250909100007.3136249-1-keirf@google.com> Subject: [PATCH v4 0/4] KVM: Speed up MMIO registrations From: Keir Fraser To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Sean Christopherson , Eric Auger , Oliver Upton , Marc Zyngier , Will Deacon , Paolo Bonzini , Keir Fraser Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250909_110015_839329_B3885941 X-CRM114-Status: UNSURE ( 8.56 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is version 4 of the patches I previously posted here: https://lore.kernel.org/all/20250819090853.3988626-1-keirf@google.com/ Changes since v3: * Rebased to v6.17-rc5 * Added Tested-by tag to patch 4 * Fixed reproducible syzkaller splat * Tweaked comments to Sean's specification Keir Fraser (4): KVM: arm64: vgic-init: Remove vgic_ready() macro KVM: arm64: vgic: Explicitly implement vgic_dist::ready ordering KVM: Implement barriers before accessing kvm->buses[] on SRCU read paths KVM: Avoid synchronize_srcu() in kvm_io_bus_register_dev() arch/arm64/kvm/vgic/vgic-init.c | 14 +++-------- arch/x86/kvm/vmx/vmx.c | 7 ++++++ include/kvm/arm_vgic.h | 1 - include/linux/kvm_host.h | 11 ++++++--- virt/kvm/kvm_main.c | 43 +++++++++++++++++++++++++++------ 5 files changed, 53 insertions(+), 23 deletions(-) -- 2.51.0.384.g4c02a37b29-goog