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kern: update KPageTable::Unmap block closing logic

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This commit is contained in:
Michael Scire
2021-09-17 16:54:49 -07:00
committed by SciresM
parent 8b49cea4a9
commit 4c73c461f1
3 changed files with 20 additions and 3 deletions
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10
libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
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@@ -579,7 +579,7 @@ namespace ams::kern::arch::arm64 {
/* Ensure that any pages we track close on exit. */
KPageGroup pages_to_close(this->GetBlockInfoManager());
ON_SCOPE_EXIT { pages_to_close.Close(); };
ON_SCOPE_EXIT { pages_to_close.CloseAndReset(); };
/* Begin traversal. */
TraversalContext context;
@@ -601,8 +601,9 @@ namespace ams::kern::arch::arm64 {
if (next_entry.block_size > remaining_pages * PageSize) {
MESOSPHERE_ABORT_UNLESS(force);
MESOSPHERE_R_ABORT_UNLESS(this->SeparatePages(virt_addr, remaining_pages * PageSize, page_list, reuse_ll));
next_valid = impl.BeginTraversal(std::addressof(next_entry), std::addressof(context), virt_addr);
MESOSPHERE_ASSERT(next_valid);
const bool new_valid = impl.BeginTraversal(std::addressof(next_entry), std::addressof(context), virt_addr);
MESOSPHERE_ASSERT(new_valid);
MESOSPHERE_UNUSED(new_valid);
}
/* Check that our state is coherent. */
@@ -641,6 +642,7 @@ namespace ams::kern::arch::arm64 {
*l1_entry = InvalidL1PageTableEntry;
this->NoteUpdated();
this->FreePageTable(page_list, l2_virt);
pages_to_close.CloseAndReset();
}
}
}
@@ -684,6 +686,7 @@ namespace ams::kern::arch::arm64 {
}
this->FreePageTable(page_list, l3_virt);
pages_to_close.CloseAndReset();
}
}
}
@@ -698,6 +701,7 @@ namespace ams::kern::arch::arm64 {
if (R_FAILED(pages_to_close.AddBlock(block_virt_addr, block_num_pages))) {
this->NoteUpdated();
Kernel::GetMemoryManager().Close(block_virt_addr, block_num_pages);
pages_to_close.CloseAndReset();
}
}