It appears that dynamic shared memory does not work with an embedded DT, but I'm likely missing something. I have it working fine with an external DT.

There is a bit of interaction in kernel/boot.c with the two configuration options and my testing is not seeing it work with 3.14 and master looks the same viewing it.

get_external_fdt() is called which does not work with the embedded DT it appears to me.

Any hints or advice?

Thanks John

#ifdef CFG_CORE_DYN_SHM static void discover_nsec_memory(void) { struct core_mmu_phys_mem *mem; const struct core_mmu_phys_mem *mem_begin = NULL; const struct core_mmu_phys_mem *mem_end = NULL; size_t nelems; void *fdt = get_external_dt();

if (fdt) { mem = get_nsec_memory(fdt, &nelems); if (mem) { core_mmu_set_discovered_nsec_ddr(mem, nelems); return; }

DMSG("No non-secure memory found in FDT"); }

mem_begin = phys_ddr_overall_begin; mem_end = phys_ddr_overall_end; nelems = mem_end - mem_begin; if (nelems) { /* * Platform cannot use both register_ddr() and the now * deprecated register_dynamic_shm(). */ assert(phys_ddr_overall_compat_begin == phys_ddr_overall_compat_end); } else { mem_begin = phys_ddr_overall_compat_begin; mem_end = phys_ddr_overall_compat_end; nelems = mem_end - mem_begin; if (!nelems) return; This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately.