1 files changed, 32 insertions, 6 deletions

diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index b3795a94a..4e95f1f0c 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -14,6 +14,14 @@
 
 namespace Kernel {
 
+const ResultCode ERR_INVALID_ADDRESS{ // 0xE0E01BF5
+        ErrorDescription::InvalidAddress, ErrorModule::OS,
+        ErrorSummary::InvalidArgument, ErrorLevel::Usage};
+
+const ResultCode ERR_INVALID_ADDRESS_STATE{ // 0xE0A01BF5
+        ErrorDescription::InvalidAddress, ErrorModule::OS,
+        ErrorSummary::InvalidState, ErrorLevel::Usage};
+
 enum class VMAType : u8 {
     /// VMA represents an unmapped region of the address space.
     Free,
@@ -75,7 +83,7 @@ struct VirtualMemoryArea {
     /// Memory block backing this VMA.
     std::shared_ptr<std::vector<u8>> backing_block = nullptr;
     /// Offset into the backing_memory the mapping starts from.
-    u32 offset = 0;
+    size_t offset = 0;
 
     // Settings for type = BackingMemory
     /// Pointer backing this VMA. It will not be destroyed or freed when the VMA is removed.
@@ -141,7 +149,7 @@ public:
      * @param state MemoryState tag to attach to the VMA.
      */
     ResultVal<VMAHandle> MapMemoryBlock(VAddr target, std::shared_ptr<std::vector<u8>> block,
-            u32 offset, u32 size, MemoryState state);
+            size_t offset, u32 size, MemoryState state);
 
     /**
      * Maps an unmanaged host memory pointer at a given address.
@@ -163,14 +171,23 @@ public:
      */
     ResultVal<VMAHandle> MapMMIO(VAddr target, PAddr paddr, u32 size, MemoryState state);
 
-    /// Unmaps the given VMA.
-    void Unmap(VMAHandle vma);
+    /// Unmaps a range of addresses, splitting VMAs as necessary.
+    ResultCode UnmapRange(VAddr target, u32 size);
 
     /// Changes the permissions of the given VMA.
-    void Reprotect(VMAHandle vma, VMAPermission new_perms);
+    VMAHandle Reprotect(VMAHandle vma, VMAPermission new_perms);
+
+    /// Changes the permissions of a range of addresses, splitting VMAs as necessary.
+    ResultCode ReprotectRange(VAddr target, u32 size, VMAPermission new_perms);
+
+    /**
+     * Scans all VMAs and updates the page table range of any that use the given vector as backing
+     * memory. This should be called after any operation that causes reallocation of the vector.
+     */
+    void RefreshMemoryBlockMappings(const std::vector<u8>* block);
 
     /// Dumps the address space layout to the log, for debugging
-    void LogLayout() const;
+    void LogLayout(Log::Level log_level) const;
 
 private:
     using VMAIter = decltype(vma_map)::iterator;
@@ -178,6 +195,9 @@ private:
     /// Converts a VMAHandle to a mutable VMAIter.
     VMAIter StripIterConstness(const VMAHandle& iter);
 
+    /// Unmaps the given VMA.
+    VMAIter Unmap(VMAIter vma);
+
     /**
      * Carves a VMA of a specific size at the specified address by splitting Free VMAs while doing
      * the appropriate error checking.
@@ -185,6 +205,12 @@ private:
     ResultVal<VMAIter> CarveVMA(VAddr base, u32 size);
 
     /**
+     * Splits the edges of the given range of non-Free VMAs so that there is a VMA split at each
+     * end of the range.
+     */
+    ResultVal<VMAIter> CarveVMARange(VAddr base, u32 size);
+
+    /**
      * Splits a VMA in two, at the specified offset.
      * @returns the right side of the split, with the original iterator becoming the left side.
      */