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arch/risc-v: fix RV32 up_addrenv_destroy

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This patch fixes the issue/12122 for RV32, where the scanning should be
limited to user space only.

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This commit is contained in:
Yanfeng Liu 2024-04-13 08:09:10 +08:00 committed by Xiang Xiao
parent 6d7355b929
commit 200424e59d
1 changed files with 4 additions and 1 deletions
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5
arch/risc-v/src/common/riscv_addrenv.c
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@ -539,7 +539,10 @@ int up_addrenv_destroy(arch_addrenv_t *addrenv)
ptprev = (uintptr_t *)riscv_pgvaddr(addrenv->spgtables[ARCH_SPGTS - 1]); ptprev = (uintptr_t *)riscv_pgvaddr(addrenv->spgtables[ARCH_SPGTS - 1]);
if (ptprev) if (ptprev)
{ {
for (i = 0; i < ENTRIES_PER_PGT; i++, vaddr += pgsize) /* walk user space only */
i = (ARCH_SPGTS < 2) ? vaddr / pgsize : 0;
for (; i < ENTRIES_PER_PGT; i++, vaddr += pgsize)
{ {
ptlast = (uintptr_t *)riscv_pgvaddr(mmu_pte_to_paddr(ptprev[i])); ptlast = (uintptr_t *)riscv_pgvaddr(mmu_pte_to_paddr(ptprev[i]));
if (ptlast) if (ptlast)