fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2025-12-22 09:19:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

x86: Simplify region unmapping a bit

Browse Source 
Add PageTableEntry::clear() to zero out a whole PTE, and use that for
unmapping instead of clearing individual fields.
This commit is contained in:
Andreas Kling
2020-02-08 12:49:00 +01:00
parent 3b95d61b22
commit a9d7902bb7
3 changed files with 5 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Kernel/VM/MemoryManager.cpp
View File

@@ -559,8 +559,7 @@ void MemoryManager::unquickmap_page()
ASSERT_INTERRUPTS_DISABLED();
ASSERT(m_quickmap_in_use);
auto& pte = boot_pd3_pde1023_pt[0];
pte.set_physical_page_base(0);
pte.set_present(false);
pte.clear();
flush_tlb(VirtualAddress(0xffe00000));
m_quickmap_in_use = false;
}