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Make page_manager::unmap_pages() handle multiple blocks

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Justin C. Miller
2018-04-22 13:37:44 -07:00
parent 95d52b87f4
commit 8cb0803605
2 changed files with 72 additions and 25 deletions
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10
src/kernel/memory_pages.h
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@@ -93,6 +93,7 @@ struct page_block
inline bool has_flag(page_block_flags f) const { return bitfield_contains(flags, f); }
inline uint64_t physical_end() const { return physical_address + (count * page_manager::page_size); }
inline uint64_t virtual_end() const { return virtual_address + (count * page_manager::page_size); }
inline bool contains(uint64_t vaddr) const { return vaddr >= virtual_address && vaddr < virtual_end(); }
/// Helper to zero out a block and optionally set the next pointer.
@@ -115,10 +116,15 @@ struct page_block
/// \arg list The list to append to the current list
void list_append(page_block *list);
/// Sorted-insert of a block into the list.
/// Sorted-insert of a block into the list by physical address.
/// \arg block The single block to insert
/// \returns The new list head
page_block * list_insert(page_block *block);
page_block * list_insert_physical(page_block *block);
/// Sorted-insert of a block into the list by virtual address.
/// \arg block The single block to insert
/// \returns The new list head
page_block * list_insert_virtual(page_block *block);
/// Traverse the list, joining adjacent blocks where possible.
/// \returns A linked list of freed page_block structures.