eliott/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird synced 2026-05-02 12:32:20 +02:00
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
Notes: sideshowbarker 2024-07-19 09:31:52 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/a9d7902bb73
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;
}