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Kernel: Make kernel memory regions be non-executable by default

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From now on, you'll have to request executable memory specifically
if you want some.
This commit is contained in:
Andreas Kling 2019-12-25 22:41:34 +01:00
parent 0b7a2e0a5a
commit 9e55bcb7da
7 changed files with 27 additions and 31 deletions
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6
Kernel/VM/MemoryManager.h
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@ -60,9 +60,9 @@ public:
void map_for_kernel(VirtualAddress, PhysicalAddress, bool cache_disabled = false);
OwnPtr<Region> allocate_kernel_region(size_t, const StringView& name, bool user_accessible = false, bool should_commit = true);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, const StringView& name);
OwnPtr<Region> allocate_user_accessible_kernel_region(size_t, const StringView& name);
OwnPtr<Region> allocate_kernel_region(size_t, const StringView& name, u8 access, bool user_accessible = false, bool should_commit = true);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, const StringView& name, u8 access);
OwnPtr<Region> allocate_user_accessible_kernel_region(size_t, const StringView& name, u8 access);
unsigned user_physical_pages() const { return m_user_physical_pages; }
unsigned user_physical_pages_used() const { return m_user_physical_pages_used; }