RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 14:57:34 +00:00
Code Issues Activity Actions

APIC: Enable APIC and start APs

Browse source
This commit is contained in:
Tom 2019-10-16 10:27:00 -06:00 • committed by Andreas Kling
parent 4c8341d080
commit 00a7c48d6e
8 changed files with 263 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Kernel/VM/MemoryManager.cpp
View file

@ -622,13 +622,14 @@ void MemoryManager::flush_tlb(VirtualAddress vaddr)
: "memory");
}
void MemoryManager::map_for_kernel(VirtualAddress vaddr, PhysicalAddress paddr)
void MemoryManager::map_for_kernel(VirtualAddress vaddr, PhysicalAddress paddr, bool cache_disabled)
{
auto& pte = ensure_pte(kernel_page_directory(), vaddr);
pte.set_physical_page_base(paddr.get());
pte.set_present(true);
pte.set_writable(true);
pte.set_user_allowed(false);
pte.set_cache_disabled(cache_disabled);
flush_tlb(vaddr);
}

2
Kernel/VM/MemoryManager.h
View file

@ -69,7 +69,7 @@ public:
void remap_region(PageDirectory&, Region&);
void map_for_kernel(VirtualAddress, PhysicalAddress);
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_user_accessible_kernel_region(size_t, const StringView& name);