[PATCH v2 2/4] arm: mach-k3: Do not map ATF and OPTEE regions in MMU
Andrew Davis
afd at ti.com
Tue Nov 28 18:05:26 CET 2023
ATF and OPTEE regions may be firewalled from non-secure entities. To
prevent access to this area we leave a hole there in the MMU map. This
is the same idea as [0] but we complete that patch by adding the same
for AM65, J721e, J7200, and J721s2 here.
[0] commit 0688ff3ae23c ("arm: mach-k3: arm64-mmu: do not map ATF and OPTEE regions in A53 MMU")
Signed-off-by: Andrew Davis <afd at ti.com>
---
arch/arm/mach-k3/arm64-mmu.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-k3/arm64-mmu.c b/arch/arm/mach-k3/arm64-mmu.c
index d872ed714c4..5c858ae0f84 100644
--- a/arch/arm/mach-k3/arm64-mmu.c
+++ b/arch/arm/mach-k3/arm64-mmu.c
@@ -24,7 +24,7 @@ struct mm_region am654_mem_map[] = {
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
- .size = 0x20000000UL,
+ .size = 0x1e780000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
@@ -75,7 +75,7 @@ struct mm_region j7200_mem_map[] = {
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
- .size = 0x20000000UL,
+ .size = 0x1e780000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
@@ -123,7 +123,7 @@ struct mm_region j721e_mem_map[] = {
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
- .size = 0x20000000UL,
+ .size = 0x1e780000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
@@ -180,7 +180,13 @@ struct mm_region j721s2_mem_map[] = {
}, {
.virt = 0x80000000UL,
.phys = 0x80000000UL,
- .size = 0x80000000UL,
+ .size = 0x1e780000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ .virt = 0xa0000000UL,
+ .phys = 0xa0000000UL,
+ .size = 0x60000000UL,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_INNER_SHARE
}, {
--
2.39.2
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