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Hello,
I am using the FVP_Base_RevC-2xAEMvA model and examining the memory initialization parameters related to different memory regions (e.g., bp.dmc, bp.ns_dram, etc.). Running the command --list-params yields the following fill-related parameters:
FVP_Base_RevC-2xAEMvA
bp.dmc
bp.ns_dram
--list-params
bp.dmc.fill1=3755990991 # Fill pattern 1, initializes memory with alternating fill1, fill2 pattern bp.dmc.fill2=3487555551 # Fill pattern 2 bp.ns_dram.fill1=3755990991 bp.ns_dram.fill2=3487555551 ... (similar for other regions like bp.psram, bp.rt_dram, etc.)
I would like to understand the scope and application of these parameters:
bp.rt_dram
I have confirmed that there memory region is controlled by bp.s_dram, I got this answer by try one by one. But I don't know why. In my guess, this may be related to the security of memory region. The manner says that `P` security memory region block any access from Secure and Non-secure, maybe any region that block Non-secure is controlled by bp.s_dram?
I appreciate any clarification or documentation references that can help explain how these parameters govern memory initialization.
Thank you!
This discussion is a continuation of the previous question：community.arm.com/.../why-doesn-t-fvp-initialize-unused-memory-to-zero-e-g-0xcfdfdfdfdfdfdfcf