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feat: Enhance MMU by separating sections and configuring permissions

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This commit is contained in:
Alexander Neuhäuser
2026-03-11 21:21:30 +01:00
parent 6af820815d
commit 34a73f0095
7 changed files with 151 additions and 67 deletions
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11
src/vector.S
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@@ -56,7 +56,7 @@ el2_to_el1:
adrp x0, SCTLR_EL1_CONF
ldr x1, [x0, :lo12:SCTLR_EL1_CONF]
msr SCTLR_EL1, x0
msr SCTLR_EL1, x1
isb
@@ -77,7 +77,7 @@ configure_mmu_el1:
// Configure MMU
adrp x0, TCR_EL1_CONF
ldr x1, [x0, :lo12:TCR_EL1_CONF]
msr TCR_EL1, x0
msr TCR_EL1, x1
isb
// MAIR0: Normal Mem.
@@ -87,9 +87,10 @@ configure_mmu_el1:
isb
// Configure translation table
ldr x0, =__translation_table_l1_start
msr TTBR0_EL1, x0
msr TTBR1_EL1, x0
adrp x0, TRANSLATIONTABLE_TTBR0
add x1, x0, :lo12:TRANSLATIONTABLE_TTBR0
msr TTBR0_EL1, x1
msr TTBR1_EL1, x1
tlbi vmalle1
dsb ish