commit baeaf2eb783a94214b38411b746696361fe9f41e
author Daniel Boulby <daniel.boulby@arm.com> Thu Dec 09 11:42:36 2021 +0000
committer Daniel Boulby <daniel.boulby@arm.com> Fri Dec 17 11:13:09 2021 +0000
tree 85849afcf3364141ff991e79c337ab28d7bd5893
parent 9fa36966bec8ade49b2b309ac4d15cb5629dd51f

feat(ff-a): save partitions version during ffa_version

This will be useful later when we may need to consider the version
of a partition when structuring a response to certain FF-A functions.

Also add a call to FFA_VERSION during initialization of the hypervisor
so the SPMC knows the hypervisors implemented version.

Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
Change-Id: Ia8f5f8a9589300311a1e129536acce0948d5a6bc

src/api.c

diff --git a/src/api.c b/src/api.c
index 56b8bc2..de2bf5b 100644
--- a/src/api.c
+++ b/src/api.c
@@ -1794,8 +1794,11 @@
 }
 
 /** Returns the version of the implemented FF-A specification. */
-struct ffa_value api_ffa_version(uint32_t requested_version)
+struct ffa_value api_ffa_version(struct vcpu *current,
+				 uint32_t requested_version)
 {
+	struct vm_locked current_vm_locked;
+
 	/*
 	 * Ensure that both major and minor revision representation occupies at
 	 * most 15 bits.
@@ -1809,6 +1812,10 @@
 		return (struct ffa_value){.func = (uint32_t)FFA_NOT_SUPPORTED};
 	}
 
+	current_vm_locked = vm_lock(current->vm);
+	current_vm_locked.vm->ffa_version = requested_version;
+	vm_unlock(&current_vm_locked);
+
 	return ((struct ffa_value){.func = FFA_VERSION_COMPILED});
 }