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Thu, 27 Feb 2025 10:17:54 -0800 (PST) Date: Thu, 27 Feb 2025 18:17:45 +0000 Mime-Version: 1.0 X-Mailer: git-send-email 2.48.1.711.g2feabab25a-goog Message-ID: <20250227181750.3606372-1-sebastianene@google.com> Subject: [PATCH v2 0/4] KVM: arm64: Separate the hyp FF-A buffers init from the host From: Sebastian Ene To: catalin.marinas@arm.com, joey.gouly@arm.com, maz@kernel.org, oliver.upton@linux.dev, sebastianene@google.com, snehalreddy@google.com, sudeep.holla@arm.com, suzuki.poulose@arm.com, vdonnefort@google.com, will@kernel.org, yuzenghui@huawei.com Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_101756_729113_2C3D8FD4 X-CRM114-Status: GOOD ( 10.31 ) 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 Hello, This moves the initialization of the hypervisor FF-A buffers away from the host FF-A map calling path. If the hypervisor cannot map the buffers with Trustzone, it rejects any FF-A call when it runs under protected mode. Other than that it moves the definitions of the ffa_to_linux_err map from the arm_ffa driver to the ffa header so that the hyp code can make use of it. *** Changelog *** v1 -> this version: Split the patch that maps the ff-a buffers of ffa init and introduce "Move the ffa_to_linux definition to the ffa header". Thanks, Sebastian Ene (4): KVM: arm64: Use the static initializer for the vesion lock KVM: arm64: Move the ffa_to_linux definition to the ffa header KVM: arm64: Map the hypervisor FF-A buffers on ffa init KVM: arm64: Release the ownership of the hyp rx buffer to Trustzone arch/arm64/kvm/hyp/nvhe/ffa.c | 56 +++++++++++++------------------ drivers/firmware/arm_ffa/driver.c | 24 ------------- include/linux/arm_ffa.h | 24 +++++++++++++ 3 files changed, 47 insertions(+), 57 deletions(-) -- 2.48.1.711.g2feabab25a-goog