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Kernel: Stop allocating physical pages for mapped MMIO regions #24279

Merged
merged 2 commits into from
May 17, 2024
Merged

Kernel: Stop allocating physical pages for mapped MMIO regions #24279

merged 2 commits into from
May 17, 2024

Commits on May 17, 2024

  1. Kernel: Stop allocating physical pages for mapped MMIO regions 

    As MMIO is placed at fixed physical addressed, and does not need to be
backed by real RAM physical pages, there's no need to use PhysicalPage
instances to track their pages.
This results in slightly reduced allocations, but more importantly
makes MMIO addresses which end up after the normal RAM ranges work,
like 64-bit PCI BARs usually are.
    @IdanHo
    IdanHo committed May 17, 2024
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  2. Kernel: Rename Memory::PhysicalPage to Memory::PhysicalRAMPage 

    Since these are now only used to represent RAM pages, (and not MMIO
pages) rename them to make their purpose more obvious.
    @IdanHo
    IdanHo committed May 17, 2024
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