Re: [PATCH 2/3] arm: mach-k3: Remove non-cached memory map areas

23 Nov 2023


      On 11/23/2023 10:52 PM, Andrew Davis wrote:
...
@@ -219,16 +177,9 @@ struct mm_region am62_mem_map[] = {
   }, {
   	.virt = 0x80000000UL,
   	.phys = 0x80000000UL,

.size = 0x1E780000UL,


.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |


	PTE_BLOCK_INNER_SHARE


}, {
.virt = 0xA0000000UL,


.phys = 0xA0000000UL,


.size = 0x60000000UL,




.size = 0x80000000UL,

.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
	 PTE_BLOCK_INNER_SHARE


}, {
  .virt = 0x880000000UL,
  .phys = 0x880000000UL,

This causes issues when TF-A region @0x9e780000 is firewalled off from
non-secure world. A53 does speculative accesses to this region from EL1
leading to FW exceptions being reported on TIFS log (although A53 itself
doesn't seem to abort)

    

Raghavendra, Vignesh