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Kernel: Move PhysicalPage classes out of the heap into an array

By moving the PhysicalPage classes out of the kernel heap into a static
array, one for each physical page, we can avoid the added overhead and
easily find them by indexing into an array.

This also wraps the PhysicalPage into a PhysicalPageEntry, which allows
us to re-use each slot with information where to find the next free
page.
This commit is contained in:
Tom 2021-07-07 19:50:05 -06:00 committed by Andreas Kling
parent ad5d9d648b
commit 87dc4c3d2c
11 changed files with 285 additions and 43 deletions

View file

@ -32,6 +32,8 @@ public:
~PageDirectory();
void allocate_kernel_directory();
FlatPtr cr3() const
{
#if ARCH(X86_64)