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dart: Add checks to dart_translate_internal()
Previous assumptions are not longer true with dart8110 on M2. Signed-off-by: Janne Grunau <j@jannau.net>
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1 changed files with 10 additions and 0 deletions
10
src/dart.c
10
src/dart.c
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@ -587,6 +587,16 @@ static void *dart_translate_internal(dart_dev_t *dart, uintptr_t iova, int silen
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u32 ttbr = (iova >> 36) & 0x3;
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u32 l1_index = (iova >> 25) & 0x7ff;
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if ((int)ttbr >= dart->params->ttbr_count) {
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printf("dart[%lx %u]: ttbr out of range: %d\n", dart->regs, dart->device, ttbr);
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return NULL;
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}
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if (!dart->l1[ttbr]) {
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printf("dart[%lx %u]: l1[%u] is not set\n", dart->regs, dart->device, ttbr);
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return NULL;
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}
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if (!(dart->l1[ttbr][l1_index] & DART_PTE_VALID) && !silent) {
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printf("dart[%lx %u]: l1 translation failure %x %lx\n", dart->regs, dart->device, l1_index,
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iova);
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