[edk2-devel] [PATCH v3 04/13] ArmPkg: Introduce support for PcdFfaEnable
Sughosh Ganu
sughosh.ganu at linaro.org
Fri Jan 15 06:13:55 UTC 2021
The Secure Partition(SP) can request services from the Secure
Partition Manager Core(SPMC) either through FF-A calls or through the
existing SVC calls. Add a feature flag Pcd for enabling the FF-A
method -- when this is set to FALSE, the SP uses the existing SVC
calls for making the requests.
Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
Reviewed-by: Sami Mujawar <sami.mujawar at arm.com>
---
Changes since V2: None
ArmPkg/ArmPkg.dec | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/ArmPkg/ArmPkg.dec b/ArmPkg/ArmPkg.dec
index eaf1072d9e..507e16844c 100644
--- a/ArmPkg/ArmPkg.dec
+++ b/ArmPkg/ArmPkg.dec
@@ -78,6 +78,12 @@
# Define if the GICv3 controller should use the GICv2 legacy
gArmTokenSpaceGuid.PcdArmGicV3WithV2Legacy|FALSE|BOOLEAN|0x00000042
+ ## Used to select method for requesting services from S-EL1.<BR><BR
+ # TRUE - Selects FF-A calls for communication between S-EL0 and SPMC.<BR>
+ # FALSE - Selects SVC calls for communication between S-EL0 and SPMC.<BR>
+ # @Prompt Enable FF-A support.
+ gArmTokenSpaceGuid.PcdFfaEnable|FALSE|BOOLEAN|0x0000005B
+
[PcdsFeatureFlag.ARM]
# Whether to map normal memory as non-shareable. FALSE is the safe choice, but
# TRUE may be appropriate to fix performance problems if you don't care about
--
2.17.1
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