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Marc Zyngier
ebdda44a2b
* kvm-arm64/ffa-1.2: : . : FFA 1.2 support for pKVM, courtesy of Per Larsen. : : From the cover letter at [1]: : : "The FF-A 1.2 specification introduces a new SEND_DIRECT2 ABI which : allows registers x4-x17 to be used for the message payload. This patch : set prevents the host from using a lower FF-A version than what has : already been negotiated with the hypervisor. This is necessary because : the hypervisor does not have the necessary compatibility paths to : translate from the hypervisor FF-A version to a previous version." : : [1] https://lore.kernel.org/r/20250820-virtio-msg-ffa-v11-0-497ef43550a3@google.com : . KVM: arm64: Bump the supported version of FF-A to 1.2 KVM: arm64: Mask response to FFA_FEATURE call KVM: arm64: Mark optional FF-A 1.2 interfaces as unsupported KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported KVM: arm64: Use SMCCC 1.2 for FF-A initialization and in host handler KVM: arm64: Correct return value on host version downgrade attempt Signed-off-by: Marc Zyngier <maz@kernel.org>