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| author | Roberto Vargas <roberto.vargas@arm.com> | 2017-08-08 11:27:20 +0100 |
|---|---|---|
| committer | Roberto Vargas <roberto.vargas@arm.com> | 2017-09-25 13:32:20 +0100 |
| commit | b09ba056c4203a3fcca78675aa3de257023b7d70 (patch) | |
| tree | 870f31a821c17f5cd24cba24d15ea17a11231029 /lib | |
| parent | f145403c2a1a7064cb55670ac0674dc6586398ab (diff) | |
| download | platform_external_arm-trusted-firmware-b09ba056c4203a3fcca78675aa3de257023b7d70.tar.gz platform_external_arm-trusted-firmware-b09ba056c4203a3fcca78675aa3de257023b7d70.tar.bz2 platform_external_arm-trusted-firmware-b09ba056c4203a3fcca78675aa3de257023b7d70.zip | |
mem_protect: Add DRAM2 to the list of mem protected ranges
On ARM platforms, the maximum size of the address space is limited
to 32-bits as defined in arm_def.h. In order to access DRAM2, which
is defined beyond the 32-bit address space, the maximum address space
is increased to 36-bits in AArch64. It is possible to increase the
virtual space for AArch32, but it is more difficult and not supported
for now.
NOTE - the actual maximum memory address space is platform dependent
and is checked at run-time by querying the PARange field in the
ID_AA64MMFR0_EL1 register.
Change-Id: I6cb05c78a63b1fed96db9a9773faca04a5b93d67
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions