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Kernel: Regions should be mapped into a PageDirectory, not a Process

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This patch changes the parameter to Region::map() to be a PageDirectory
since that matches how we think about the memory model:

Regions are views onto VMObjects, and are mapped into PageDirectories.
Each Process has a PageDirectory. The kernel also has a PageDirectory.
This commit is contained in:
Andreas Kling 2019-11-03 20:48:35 +01:00
parent 2cfc43c982
commit 3dce0f23f4
4 changed files with 9 additions and 9 deletions
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2
Kernel/VM/MemoryManager.cpp
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@ -483,7 +483,7 @@ OwnPtr<Region> MemoryManager::allocate_kernel_region(size_t size, const StringVi
region = Region::create_user_accessible(range, name, PROT_READ | PROT_WRITE | PROT_EXEC);
else
region = Region::create_kernel_only(range, name, PROT_READ | PROT_WRITE | PROT_EXEC);
MM.map_region_at_address(*m_kernel_page_directory, *region, range.base());
region->map(kernel_page_directory());
// FIXME: It would be cool if these could zero-fill on demand instead.
if (should_commit)
region->commit();