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kern: Perform page table validity pass during KPageTableImpl::InitializeForKernel

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This commit is contained in:
Michael Scire
2024-10-10 19:14:07 -07:00
committed by SciresM
parent c911420d6a
commit e63cae5c77
4 changed files with 127 additions and 69 deletions
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16
libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
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@@ -220,7 +220,7 @@ namespace ams::kern::arch::arm64 {
/* Remove the entries from the previous table. */
if (context.level != KPageTableImpl::EntryLevel_L1) {
context.level_entries[context.level + 1]->RemoveTableEntries(num_to_clear);
context.level_entries[context.level + 1]->CloseTableReferences(num_to_clear);
}
/* If we cleared a table, we need to note that we updated and free the table. */
@@ -238,7 +238,7 @@ namespace ams::kern::arch::arm64 {
context.level_entries[context.level] = pte + num_to_clear - 1;
/* We may have removed the last entries in a table, in which case we can free and unmap the tables. */
if (context.level >= KPageTableImpl::EntryLevel_L1 || context.level_entries[context.level + 1]->GetTableNumEntries() != 0) {
if (context.level >= KPageTableImpl::EntryLevel_L1 || context.level_entries[context.level + 1]->GetTableReferenceCount() != 0) {
break;
}
@@ -395,7 +395,7 @@ namespace ams::kern::arch::arm64 {
/* Remove the entries from the previous table. */
if (context.level != KPageTableImpl::EntryLevel_L1) {
context.level_entries[context.level + 1]->RemoveTableEntries(num_to_clear);
context.level_entries[context.level + 1]->CloseTableReferences(num_to_clear);
}
/* If we cleared a table, we need to note that we updated and free the table. */
@@ -415,7 +415,7 @@ namespace ams::kern::arch::arm64 {
context.level_entries[context.level] = pte + num_to_clear - 1;
/* We may have removed the last entries in a table, in which case we can free and unmap the tables. */
if (context.level >= KPageTableImpl::EntryLevel_L1 || context.level_entries[context.level + 1]->GetTableNumEntries() != 0) {
if (context.level >= KPageTableImpl::EntryLevel_L1 || context.level_entries[context.level + 1]->GetTableReferenceCount() != 0) {
break;
}
@@ -485,7 +485,7 @@ namespace ams::kern::arch::arm64 {
/* Remove entries for and free any tables. */
while (context.level < KPageTableImpl::EntryLevel_L1) {
/* If the higher-level table has entries, we don't need to do a free. */
if (context.level_entries[context.level + 1]->GetTableNumEntries() != 0) {
if (context.level_entries[context.level + 1]->GetTableReferenceCount() != 0) {
break;
}
@@ -500,7 +500,7 @@ namespace ams::kern::arch::arm64 {
/* Remove the entry for the table one level higher. */
if (context.level + 1 < KPageTableImpl::EntryLevel_L1) {
context.level_entries[context.level + 2]->RemoveTableEntries(1);
context.level_entries[context.level + 2]->CloseTableReferences(1);
}
/* Advance our level. */
@@ -527,7 +527,7 @@ namespace ams::kern::arch::arm64 {
/* Add the entry to the table containing this one. */
if (context.level != KPageTableImpl::EntryLevel_L1) {
context.level_entries[context.level + 1]->AddTableEntries(1);
context.level_entries[context.level + 1]->OpenTableReferences(1);
}
/* Decrease our level. */
@@ -559,7 +559,7 @@ namespace ams::kern::arch::arm64 {
/* Add the entries to the table containing this one. */
if (context.level != KPageTableImpl::EntryLevel_L1) {
context.level_entries[context.level + 1]->AddTableEntries(num_ptes);
context.level_entries[context.level + 1]->OpenTableReferences(num_ptes);
}
/* Update our context. */