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kern: implement PermissionLock, update KPageTableBase attribute/alignment checks

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Michael Scire 2023-10-11 07:59:37 -07:00 • committed by SciresM
parent 777b6d285c
commit ad5bd81d3f
5 changed files with 114 additions and 20 deletions
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14
libraries/libmesosphere/include/mesosphere/kern_k_memory_block.hpp
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@ -191,7 +191,7 @@ namespace ams::kern {
KMemoryAttribute_Uncached = ams::svc::MemoryAttribute_Uncached,
KMemoryAttribute_PermissionLocked = ams::svc::MemoryAttribute_PermissionLocked,
KMemoryAttribute_SetMask = KMemoryAttribute_Uncached,
KMemoryAttribute_SetMask = KMemoryAttribute_Uncached | KMemoryAttribute_PermissionLocked,
};
enum KMemoryBlockDisableMergeAttribute : u8 {
@ -331,6 +331,10 @@ namespace ams::kern {
return this->GetEndAddress() - 1;
}
constexpr KMemoryState GetState() const {
return m_memory_state;
}
constexpr u16 GetIpcLockCount() const {
return m_ipc_lock_count;
}
@ -450,6 +454,14 @@ namespace ams::kern {
}
}
constexpr void UpdateAttribute(u32 mask, u32 attr) {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT((mask & KMemoryAttribute_IpcLocked) == 0);
MESOSPHERE_ASSERT((mask & KMemoryAttribute_DeviceShared) == 0);
m_attribute = static_cast<KMemoryAttribute>((m_attribute & ~mask) | attr);
}
constexpr void Split(KMemoryBlock *block, KProcessAddress addr) {
MESOSPHERE_ASSERT_THIS();
MESOSPHERE_ASSERT(this->GetAddress() < addr);

4
libraries/libmesosphere/include/mesosphere/kern_k_memory_block_manager.hpp
View file

@ -104,7 +104,9 @@ namespace ams::kern {
void Update(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, KMemoryState state, KMemoryPermission perm, KMemoryAttribute attr, KMemoryBlockDisableMergeAttribute set_disable_attr, KMemoryBlockDisableMergeAttribute clear_disable_attr);
void UpdateLock(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, MemoryBlockLockFunction lock_func, KMemoryPermission perm);
void UpdateIfMatch(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, KMemoryState test_state, KMemoryPermission test_perm, KMemoryAttribute test_attr, KMemoryState state, KMemoryPermission perm, KMemoryAttribute attr);
void UpdateIfMatch(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, KMemoryState test_state, KMemoryPermission test_perm, KMemoryAttribute test_attr, KMemoryState state, KMemoryPermission perm, KMemoryAttribute attr, KMemoryBlockDisableMergeAttribute set_disable_attr, KMemoryBlockDisableMergeAttribute clear_disable_attr);
void UpdateAttribute(KMemoryBlockManagerUpdateAllocator *allocator, KProcessAddress address, size_t num_pages, u32 mask, u32 attr);
iterator FindIterator(KProcessAddress address) const {
return m_memory_block_tree.find(KMemoryBlock(util::ConstantInitialize, address, 1, KMemoryState_Free, KMemoryPermission_None, KMemoryAttribute_None));