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Kernel: Move create_identity_mapped_region() to MemoryManager

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This had no business being in RegionTree, since RegionTree doesn't track
identity-mapped regions anyway. (We allow *any* address to be identity
mapped, not just the ones that are part of the RegionTree's range.)
This commit is contained in:
Andreas Kling 2022-04-05 12:37:11 +02:00
parent 3dbb4bc3a6
commit e0da8da657
5 changed files with 12 additions and 13 deletions
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2
Kernel/Interrupts/APIC.cpp
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@ -332,7 +332,7 @@ UNMAP_AFTER_INIT void APIC::setup_ap_boot_environment()
constexpr u64 apic_startup_region_base = 0x8000;
auto apic_startup_region_size = Memory::page_round_up(apic_ap_start_size + (2 * aps_to_enable * sizeof(FlatPtr))).release_value_but_fixme_should_propagate_errors();
VERIFY(apic_startup_region_size < USER_RANGE_BASE);
auto apic_startup_region = MUST(MM.region_tree().create_identity_mapped_region(PhysicalAddress(apic_startup_region_base), apic_startup_region_size));
auto apic_startup_region = MUST(MM.create_identity_mapped_region(PhysicalAddress(apic_startup_region_base), apic_startup_region_size));
u8* apic_startup_region_ptr = apic_startup_region->vaddr().as_ptr();
memcpy(apic_startup_region_ptr, reinterpret_cast<void const*>(apic_ap_start), apic_ap_start_size);