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arch/arm/armv7-a: Fix L1 page table entry double-offset in addrenv create region

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In arm_addrenv_create_region(), the inner loop already advances vaddr by
MM_PGSIZE for each mapped page, so after filling one L2 page table
(i.e., ENTRIES_PER_L2TABLE pages), vaddr has naturally advanced to the
start of the next 1MB section.  The old code additionally added
i * SECTION_SIZE, causing the L1 entry for the second and subsequent
sections to skip one section each iteration—leaving virtual address
holes in the mapping.

Remove the redundant i * SECTION_SIZE offset so that the L1 entry tracks
the vaddr already maintained by the inner loop, producing contiguous
section mappings.

Signed-off-by: leisiji <2265215145@qq.com>
This commit is contained in:
leisiji 2026-06-17 11:41:01 +08:00 • committed by Xiang Xiao
parent ef4c8bc4b4
commit c28bdaa3c9
1 changed files with 1 additions and 2 deletions
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arch/arm/src/armv7-a/arm_addrenv_utils.c
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@ -107,8 +107,7 @@ int arm_addrenv_create_region(uintptr_t *l1table, unsigned int listlen,
DEBUGASSERT(MM_ISALIGNED(paddr));
mmu_l1table_setentry(l1table, paddr, vaddr + i * SECTION_SIZE,
MMU_L1_PGTABFLAGS);
mmu_l1table_setentry(l1table, paddr, vaddr, MMU_L1_PGTABFLAGS);
/* Get the virtual address corresponding to the physical page address */