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authorLiam <byteslice@airmail.cc>2024-01-13 01:19:07 +0100
committerLiam <byteslice@airmail.cc>2024-01-13 01:19:07 +0100
commit2f0b57ca13fb91730d7e210f6f4504357ef6cd0a (patch)
treeaaa14bbfc0ce10de34cefb28fb719946b4c96aa3 /src
parentkernel: fix debugger and process list lifetime (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/core/hle/kernel/k_memory_block_manager.cpp4
-rw-r--r--src/core/hle/kernel/k_memory_block_manager.h4
-rw-r--r--src/core/hle/kernel/k_page_table_base.cpp73
3 files changed, 18 insertions, 63 deletions
diff --git a/src/core/hle/kernel/k_memory_block_manager.cpp b/src/core/hle/kernel/k_memory_block_manager.cpp
index 58a1e7216..f08a6e448 100644
--- a/src/core/hle/kernel/k_memory_block_manager.cpp
+++ b/src/core/hle/kernel/k_memory_block_manager.cpp
@@ -28,14 +28,14 @@ Result KMemoryBlockManager::Initialize(KProcessAddress st, KProcessAddress nd,
}
void KMemoryBlockManager::Finalize(KMemoryBlockSlabManager* slab_manager,
- HostUnmapCallback&& host_unmap_callback) {
+ BlockCallback&& block_callback) {
// Erase every block until we have none left.
auto it = m_memory_block_tree.begin();
while (it != m_memory_block_tree.end()) {
KMemoryBlock* block = std::addressof(*it);
it = m_memory_block_tree.erase(it);
+ block_callback(block->GetAddress(), block->GetSize());
slab_manager->Free(block);
- host_unmap_callback(block->GetAddress(), block->GetSize());
}
ASSERT(m_memory_block_tree.empty());
diff --git a/src/core/hle/kernel/k_memory_block_manager.h b/src/core/hle/kernel/k_memory_block_manager.h
index cb7b6f430..377628504 100644
--- a/src/core/hle/kernel/k_memory_block_manager.h
+++ b/src/core/hle/kernel/k_memory_block_manager.h
@@ -85,11 +85,11 @@ public:
public:
KMemoryBlockManager();
- using HostUnmapCallback = std::function<void(Common::ProcessAddress, u64)>;
+ using BlockCallback = std::function<void(Common::ProcessAddress, u64)>;
Result Initialize(KProcessAddress st, KProcessAddress nd,
KMemoryBlockSlabManager* slab_manager);
- void Finalize(KMemoryBlockSlabManager* slab_manager, HostUnmapCallback&& host_unmap_callback);
+ void Finalize(KMemoryBlockSlabManager* slab_manager, BlockCallback&& block_callback);
iterator end() {
return m_memory_block_tree.end();
diff --git a/src/core/hle/kernel/k_page_table_base.cpp b/src/core/hle/kernel/k_page_table_base.cpp
index f01eaa164..3f0a39d33 100644
--- a/src/core/hle/kernel/k_page_table_base.cpp
+++ b/src/core/hle/kernel/k_page_table_base.cpp
@@ -435,69 +435,14 @@ Result KPageTableBase::FinalizeProcess() {
// Only process tables should be finalized.
ASSERT(!this->IsKernel());
- // HLE processes don't have memory mapped.
- R_SUCCEED_IF(m_impl == nullptr);
-
// NOTE: Here Nintendo calls an unknown OnFinalize function.
// this->OnFinalize();
// NOTE: Here Nintendo calls a second unknown OnFinalize function.
// this->OnFinalize2();
- // Get implementation objects.
- auto& impl = this->GetImpl();
- auto& mm = m_kernel.MemoryManager();
-
- // Traverse, freeing all pages.
- {
- // Get the address space size.
- const size_t as_size = this->GetAddressSpaceSize();
-
- // Begin the traversal.
- TraversalContext context;
- TraversalEntry cur_entry = {
- .phys_addr = 0,
- .block_size = 0,
- };
-
- bool cur_valid = false;
- TraversalEntry next_entry;
- bool next_valid;
- size_t tot_size = 0;
-
- next_valid = impl.BeginTraversal(std::addressof(next_entry), std::addressof(context),
- this->GetAddressSpaceStart());
-
- // Iterate over entries.
- while (true) {
- if ((!next_valid && !cur_valid) ||
- (next_valid && cur_valid &&
- next_entry.phys_addr == cur_entry.phys_addr + cur_entry.block_size)) {
- cur_entry.block_size += next_entry.block_size;
- } else {
- if (cur_valid && IsHeapPhysicalAddressForFinalize(cur_entry.phys_addr)) {
- mm.Close(cur_entry.phys_addr, cur_entry.block_size / PageSize);
- }
-
- // Update tracking variables.
- tot_size += cur_entry.block_size;
- cur_entry = next_entry;
- cur_valid = next_valid;
- }
-
- if (cur_entry.block_size + tot_size >= as_size) {
- break;
- }
-
- next_valid =
- impl.ContinueTraversal(std::addressof(next_entry), std::addressof(context));
- }
-
- // Handle the last block.
- if (cur_valid && IsHeapPhysicalAddressForFinalize(cur_entry.phys_addr)) {
- mm.Close(cur_entry.phys_addr, cur_entry.block_size / PageSize);
- }
- }
+ // NOTE: Here Nintendo does a page table walk to discover heap pages to free.
+ // We will use the block manager finalization below to free them.
R_SUCCEED();
}
@@ -505,14 +450,24 @@ Result KPageTableBase::FinalizeProcess() {
void KPageTableBase::Finalize() {
this->FinalizeProcess();
- auto HostUnmapCallback = [&](KProcessAddress addr, u64 size) {
+ auto BlockCallback = [&](KProcessAddress addr, u64 size) {
if (m_impl->fastmem_arena) {
m_system.DeviceMemory().buffer.Unmap(GetInteger(addr), size, false);
}
+
+ // Get physical pages.
+ KPageGroup pg(m_kernel, m_block_info_manager);
+ this->MakePageGroup(pg, addr, size / PageSize);
+
+ // Free the pages.
+ pg.CloseAndReset();
};
// Finalize memory blocks.
- m_memory_block_manager.Finalize(m_memory_block_slab_manager, std::move(HostUnmapCallback));
+ {
+ KScopedLightLock lk(m_general_lock);
+ m_memory_block_manager.Finalize(m_memory_block_slab_manager, std::move(BlockCallback));
+ }
// Free any unsafe mapped memory.
if (m_mapped_unsafe_physical_memory) {