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kern: fix bug in page table mapping calculations

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Michael Scire 2020-07-25 02:47:07 -07:00 committed by SciresM
parent a4d376cc0f
commit 0af44d2875
1 changed files with 1 additions and 1 deletions
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libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
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@ -645,7 +645,7 @@ namespace ams::kern::arch::arm64 {
size_t alignment; size_t alignment;
for (alignment = ContiguousPageSize; (virt_addr & (alignment - 1)) == (phys_addr & (alignment - 1)); alignment = GetLargerAlignment(alignment)) { for (alignment = ContiguousPageSize; (virt_addr & (alignment - 1)) == (phys_addr & (alignment - 1)); alignment = GetLargerAlignment(alignment)) {
/* Check if this would be our last map. */ /* Check if this would be our last map. */
const size_t pages_to_map = (alignment - (virt_addr & (alignment - 1))) & (alignment - 1); const size_t pages_to_map = ((alignment - (virt_addr & (alignment - 1))) & (alignment - 1)) / PageSize;
if (pages_to_map + (alignment / PageSize) > remaining_pages) { if (pages_to_map + (alignment / PageSize) > remaining_pages) {
break; break;
} }