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kern: KMemoryManager/KPageGroup use physical addresses instead of virtual, now

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Michael Scire 2021-09-18 00:11:10 -07:00 • committed by SciresM
parent 2c4bd44d7e
commit 2f2c36b22b
17 changed files with 305 additions and 260 deletions
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36
libraries/libmesosphere/include/mesosphere/kern_k_page_heap.hpp
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@ -54,7 +54,7 @@ namespace ams::kern {
class Block {
private:
KPageBitmap m_bitmap;
KVirtualAddress m_heap_address;
KPhysicalAddress m_heap_address;
uintptr_t m_end_offset;
size_t m_block_shift;
size_t m_next_block_shift;
@ -68,13 +68,13 @@ namespace ams::kern {
constexpr size_t GetNumFreeBlocks() const { return m_bitmap.GetNumBits(); }
constexpr size_t GetNumFreePages() const { return this->GetNumFreeBlocks() * this->GetNumPages(); }
u64 *Initialize(KVirtualAddress addr, size_t size, size_t bs, size_t nbs, u64 *bit_storage) {
u64 *Initialize(KPhysicalAddress addr, size_t size, size_t bs, size_t nbs, u64 *bit_storage) {
/* Set shifts. */
m_block_shift = bs;
m_next_block_shift = nbs;
/* Align up the address. */
KVirtualAddress end = addr + size;
KPhysicalAddress end = addr + size;
const size_t align = (m_next_block_shift != 0) ? (u64(1) << m_next_block_shift) : (u64(1) << m_block_shift);
addr = util::AlignDown(GetInteger(addr), align);
end = util::AlignUp(GetInteger(end), align);
@ -84,7 +84,7 @@ namespace ams::kern {
return m_bitmap.Initialize(bit_storage, m_end_offset);
}
KVirtualAddress PushBlock(KVirtualAddress address) {
KPhysicalAddress PushBlock(KPhysicalAddress address) {
/* Set the bit for the free block. */
size_t offset = (address - m_heap_address) >> this->GetShift();
m_bitmap.SetBit(offset);
@ -99,14 +99,14 @@ namespace ams::kern {
}
/* We couldn't coalesce, or we're already as big as possible. */
return Null<KVirtualAddress>;
return Null<KPhysicalAddress>;
}
KVirtualAddress PopBlock(bool random) {
KPhysicalAddress PopBlock(bool random) {
/* Find a free block. */
ssize_t soffset = m_bitmap.FindFreeBlock(random);
if (soffset < 0) {
return Null<KVirtualAddress>;
return Null<KPhysicalAddress>;
}
const size_t offset = static_cast<size_t>(soffset);
@ -123,27 +123,27 @@ namespace ams::kern {
}
};
private:
KVirtualAddress m_heap_address;
KPhysicalAddress m_heap_address;
size_t m_heap_size;
size_t m_initial_used_size;
size_t m_num_blocks;
Block m_blocks[NumMemoryBlockPageShifts];
private:
void Initialize(KVirtualAddress heap_address, size_t heap_size, KVirtualAddress management_address, size_t management_size, const size_t *block_shifts, size_t num_block_shifts);
void Initialize(KPhysicalAddress heap_address, size_t heap_size, KVirtualAddress management_address, size_t management_size, const size_t *block_shifts, size_t num_block_shifts);
size_t GetNumFreePages() const;
void FreeBlock(KVirtualAddress block, s32 index);
void FreeBlock(KPhysicalAddress block, s32 index);
public:
KPageHeap() : m_heap_address(), m_heap_size(), m_initial_used_size(), m_num_blocks(), m_blocks() { /* ... */ }
constexpr KVirtualAddress GetAddress() const { return m_heap_address; }
constexpr KPhysicalAddress GetAddress() const { return m_heap_address; }
constexpr size_t GetSize() const { return m_heap_size; }
constexpr KVirtualAddress GetEndAddress() const { return this->GetAddress() + this->GetSize(); }
constexpr size_t GetPageOffset(KVirtualAddress block) const { return (block - this->GetAddress()) / PageSize; }
constexpr size_t GetPageOffsetToEnd(KVirtualAddress block) const { return (this->GetEndAddress() - block) / PageSize; }
constexpr KPhysicalAddress GetEndAddress() const { return this->GetAddress() + this->GetSize(); }
constexpr size_t GetPageOffset(KPhysicalAddress block) const { return (block - this->GetAddress()) / PageSize; }
constexpr size_t GetPageOffsetToEnd(KPhysicalAddress block) const { return (this->GetEndAddress() - block) / PageSize; }
void Initialize(KVirtualAddress heap_address, size_t heap_size, KVirtualAddress management_address, size_t management_size) {
return Initialize(heap_address, heap_size, management_address, management_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
void Initialize(KPhysicalAddress heap_address, size_t heap_size, KVirtualAddress management_address, size_t management_size) {
return this->Initialize(heap_address, heap_size, management_address, management_size, MemoryBlockPageShifts, NumMemoryBlockPageShifts);
}
size_t GetFreeSize() const { return this->GetNumFreePages() * PageSize; }
@ -158,8 +158,8 @@ namespace ams::kern {
m_initial_used_size = m_heap_size - free_size - reserved_size;
}
KVirtualAddress AllocateBlock(s32 index, bool random);
void Free(KVirtualAddress addr, size_t num_pages);
KPhysicalAddress AllocateBlock(s32 index, bool random);
void Free(KPhysicalAddress addr, size_t num_pages);
private:
static size_t CalculateManagementOverheadSize(size_t region_size, const size_t *block_shifts, size_t num_block_shifts);
public: