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banan-os
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update main #1

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Sinipelto merged 240 commits from Bananymous/banan-os:main into main 2023-11-20 13:20:51 +02:00
Conversation 0 Commits 240 Files Changed 263 +10 -1
2 changed files with 10 additions and 1 deletions
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Showing only changes of commit bc1087f5a7 - Show all commits

7
kernel/arch/x86_64/PageTable.cpp
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@ -110,6 +110,13 @@ namespace Kernel
return *s_current; return *s_current;
} }
bool PageTable::is_valid_pointer(uintptr_t pointer)
{
if (!is_canonical(pointer))
return false;
return true;
}
static uint64_t* allocate_zeroed_page_aligned_page() static uint64_t* allocate_zeroed_page_aligned_page()
{ {
void* page = kmalloc(PAGE_SIZE, PAGE_SIZE, true); void* page = kmalloc(PAGE_SIZE, PAGE_SIZE, true);

4
kernel/include/kernel/Memory/PageTable.h
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@ -29,13 +29,15 @@ namespace Kernel
static PageTable& kernel(); static PageTable& kernel();
static PageTable& current(); static PageTable& current();
static bool is_valid_pointer(uintptr_t);
static BAN::ErrorOr<PageTable*> create_userspace(); static BAN::ErrorOr<PageTable*> create_userspace();
~PageTable(); ~PageTable();
void unmap_page(vaddr_t); void unmap_page(vaddr_t);
void unmap_range(vaddr_t, size_t bytes); void unmap_range(vaddr_t, size_t bytes);
void map_range_at(paddr_t, vaddr_t, size_t, flags_t); void map_range_at(paddr_t, vaddr_t, size_t bytes, flags_t);
void map_page_at(paddr_t, vaddr_t, flags_t); void map_page_at(paddr_t, vaddr_t, flags_t);
paddr_t physical_address_of(vaddr_t) const; paddr_t physical_address_of(vaddr_t) const;