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Kernel: Make MemoryManager API type-safe for Region::Access enum

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Increase type-safety moving the MemoryManager APIs which take a
Region::Access to actually use that type instead of a `u8`.

Eventually the actually m_access can be moved there as well, but
I hit some weird bug where it wasn't using the correct operators
in `set_access_bit(..)` even though it's declared (and tested).
Something to fix-up later.
This commit is contained in:
Brian Gianforcaro 2021-03-06 19:33:25 -08:00 • committed by Andreas Kling
parent c825159f01
commit eaef57443c
6 changed files with 39 additions and 35 deletions
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12
Kernel/VM/MemoryManager.h
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@ -163,12 +163,12 @@ public:
void deallocate_user_physical_page(const PhysicalPage&);
void deallocate_supervisor_physical_page(const PhysicalPage&);
OwnPtr<Region> allocate_contiguous_kernel_region(size_t, String name, u8 access, size_t physical_alignment = PAGE_SIZE, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(size_t, String name, u8 access, AllocationStrategy strategy = AllocationStrategy::Reserve, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(PhysicalAddress, size_t, String name, u8 access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_identity(PhysicalAddress, size_t, String name, u8 access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, String name, u8 access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(const Range&, VMObject&, String name, u8 access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_contiguous_kernel_region(size_t, String name, Region::Access access, size_t physical_alignment = PAGE_SIZE, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(size_t, String name, Region::Access access, AllocationStrategy strategy = AllocationStrategy::Reserve, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(PhysicalAddress, size_t, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_identity(PhysicalAddress, size_t, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(const Range&, VMObject&, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
unsigned user_physical_pages() const { return m_user_physical_pages; }
unsigned user_physical_pages_used() const { return m_user_physical_pages_used; }