From: Marc Zyngier Date: Mon, 15 Sep 2025 09:27:28 +0000 (+0100) Subject: Merge branch kvm-arm64/ffa-1.2 into kvmarm-master/next X-Git-Tag: v6.18-rc1~95^2~5^2~10 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ebdda44a2be98ce7fb9e267867d8f6dcdb62f25d;p=thirdparty%2Fkernel%2Flinux.git Merge branch kvm-arm64/ffa-1.2 into kvmarm-master/next * 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 --- ebdda44a2be98ce7fb9e267867d8f6dcdb62f25d