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.g...@linaro.org> --- Changes since V3: * Put the PcdFfaEnable under the PcdsFeatureFlag.AARCH64 section to avoid build breakage for the X64 StandaloneMm builds. ArmPkg/ArmPkg.dec | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/ArmPkg/ArmPkg.dec b/ArmPkg/ArmPkg.dec index f0b136a57a..a8a22c649f 100644 --- a/ArmPkg/ArmPkg.dec +++ b/ArmPkg/ArmPkg.dec @@ -84,6 +84,13 @@ # hardware coherency (i.e., no virtualization or cache coherent DMA) gArmTokenSpaceGuid.PcdNormalMemoryNonshareableOverride|FALSE|BOOLEAN|0x00000043 +[PcdsFeatureFlag.AARCH64] + ## 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 + [PcdsFixedAtBuild.common] gArmTokenSpaceGuid.PcdTrustzoneSupport|FALSE|BOOLEAN|0x00000006 -- 2.17.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#71725): https://edk2.groups.io/g/devel/message/71725 Mute This Topic: https://groups.io/mt/80701008/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
