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SPM: EHF: Build EHF module along with Secure Partition Manager 

Add a dependency for building EL3 exception handling framework(EHF)
module with the secure partition manager(SPM).

The EHF module is needed for raising the core's running priority
before the core enters the secure partition, and lowering it
subsequently on exit from the secure partition.

Change-Id: Icbe2d0a63f00b46dc593ff3d86b676c9333506c3
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
This commit is contained in:
Sughosh Ganu 2018-11-14 10:40:33 +05:30
parent a6febeab81
commit 8a3588a7c8
2 changed files with 6 additions and 2 deletions
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3
bl31/bl31.mk
View File

@ -8,6 +8,9 @@
# Include SPM Makefile
################################################################################
ifeq (${ENABLE_SPM},1)
ifeq (${EL3_EXCEPTION_HANDLING},0)
$(error EL3_EXCEPTION_HANDLING must be 1 for SPM support)
endif
$(info Including SPM makefile)
include services/std_svc/spm/spm.mk
endif

5
docs/secure-partition-manager-design.rst
View File

@ -125,8 +125,9 @@ Interface). This will be referred to as the *Standalone MM Secure Partition* in
the rest of this document.
To enable SPM support in TF-A, the source code must be compiled with the build
flag ``ENABLE_SPM=1``. On Arm platforms the build option ``ARM_BL31_IN_DRAM``
must be set to 1. Also, the location of the binary that contains the BL32 image
flag ``ENABLE_SPM=1``, along with ``EL3_EXCEPTION_HANDLING=1``. On Arm
platforms the build option ``ARM_BL31_IN_DRAM`` must be set to 1. Also, the
location of the binary that contains the BL32 image
(``BL32=path/to/image.bin``) must be specified.
First, build the Standalone MM Secure Partition. To build it, refer to the