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Code Issues Releases Activity

kern: fix error in SeparatePages

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This commit is contained in:
Michael Scire 2020-12-01 07:19:03 -08:00
parent 825e2df2e0
commit c374f1c5ce
1 changed files with 9 additions and 7 deletions
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16
libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
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@ -1080,7 +1080,7 @@ namespace ams::kern::arch::arm64 {
/* Get the addresses we're working with. */
const KProcessAddress block_virt_addr = util::AlignDown(GetInteger(virt_addr), L1BlockSize);
const KPhysicalAddress block_phys_addr = l1_entry->GetBlock();
const KPhysicalAddress block_phys_addr = util::AlignDown(GetInteger(l1_entry->GetBlock()), L1BlockSize);
/* Allocate a new page for the L2 table. */
const KVirtualAddress l2_table = this->AllocatePageTable(page_list, reuse_ll);
@ -1114,12 +1114,13 @@ namespace ams::kern::arch::arm64 {
/* If we're contiguous, try to separate. */
if (l2_entry->IsContiguous()) {
const KProcessAddress block_virt_addr = util::AlignDown(GetInteger(virt_addr), L2ContiguousBlockSize);
const KPhysicalAddress block_phys_addr = l2_entry->GetBlock();
const KPhysicalAddress block_phys_addr = util::AlignDown(GetInteger(l2_entry->GetBlock()), L2ContiguousBlockSize);
/* Mark the entries as non-contiguous. */
for (size_t i = 0; i < L2ContiguousBlockSize / L2BlockSize; i++) {
const u64 entry_template = l2_entry->GetEntryTemplateForL2Block(i);
*(impl.GetL2Entry(l1_entry, block_virt_addr + L2BlockSize * i)) = L2PageTableEntry(PageTableEntry::BlockTag{}, block_phys_addr + L2BlockSize * i, PageTableEntry(entry_template), PageTableEntry::SoftwareReservedBit_None, false);
L2PageTableEntry *target = impl.GetL2Entry(l1_entry, block_virt_addr + L2BlockSize * i);
const u64 entry_template = target->GetEntryTemplateForL2Block(i);
*target = L2PageTableEntry(PageTableEntry::BlockTag{}, block_phys_addr + L2BlockSize * i, PageTableEntry(entry_template), PageTableEntry::SoftwareReservedBit_None, false);
}
this->NoteUpdated();
}
@ -1162,12 +1163,13 @@ namespace ams::kern::arch::arm64 {
L3PageTableEntry *l3_entry = impl.GetL3Entry(l2_entry, virt_addr);
if (l3_entry->IsBlock() && l3_entry->IsContiguous()) {
const KProcessAddress block_virt_addr = util::AlignDown(GetInteger(virt_addr), L3ContiguousBlockSize);
const KPhysicalAddress block_phys_addr = l3_entry->GetBlock();
const KPhysicalAddress block_phys_addr = util::AlignDown(GetInteger(l3_entry->GetBlock()), L3ContiguousBlockSize);
/* Mark the entries as non-contiguous. */
for (size_t i = 0; i < L3ContiguousBlockSize / L3BlockSize; i++) {
const u64 entry_template = l3_entry->GetEntryTemplateForL3Block(i);
*(impl.GetL3Entry(l2_entry, block_virt_addr + L3BlockSize * i)) = L3PageTableEntry(PageTableEntry::BlockTag{}, block_phys_addr + L3BlockSize * i, PageTableEntry(entry_template), PageTableEntry::SoftwareReservedBit_None, false);
L3PageTableEntry *target = impl.GetL3Entry(l2_entry, block_virt_addr + L3BlockSize * i);
const u64 entry_template = target->GetEntryTemplateForL3Block(i);
*target = L3PageTableEntry(PageTableEntry::BlockTag{}, block_phys_addr + L3BlockSize * i, PageTableEntry(entry_template), PageTableEntry::SoftwareReservedBit_None, false);
}
this->NoteUpdated();
}