On 12/01/2015 10:38 PM, Hou Zhiqiang-B48286 wrote:
<snip>
>> /* Invalidate all table entries */
>> memset(level0_table, 0, PGTABLE_SIZE); @@ -269,6 +344,22 @@ static
>> inline void final_mmu_setup(void)
>> &final_mmu_table[i]);
>> }
>> }
>> + /* Set the secure memory to secure in MMU */ #ifdef
>> +CONFIG_SYS_MEM_RESERVE_SECURE
>> + if (gd->secure_ram & MEM_RESERVE_SECURE_MAINTAINED) { #ifdef
>> +CONFIG_FSL_LSCH3
>> + level2_table_secure = level2_table1 + 512; #elif
>> +defined(CONFIG_FSL_LSCH2)
>> + level2_table_secure = level2_table2 + 512; #endif
>> + /* update tlb pointer */
>> + gd->arch.tlb_addr = gd->secure_ram & ~0x3;
>
> The memory reserved for mmu table was lost? If it's better to record it and
> use for non-sec mmu table?
That can be arranged.
>
> If this func is called from non-secure state, for example EL2, the secure
> memory cannot be accessed and the PMD_SECT_NS bit should be cleared.
We need to setup secure memory at EL3 to have secure memory to begin with. But
you have a point here. Will look into it.
York
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