x86_64: leave interrupts disabled in sensitive areas

lux-operating-system · Jan 17, 2025 · 3465192 · 3465192
1 parent 8528ab4
commit 3465192
Showing 1 changed file with 0 additions and 6 deletions.
diff --git a/src/platform/x86_64/lock.asm b/src/platform/x86_64/lock.asm
@@ -47,7 +47,6 @@ acquireLock:
 global acquireLockBlocking
 align 16
 acquireLockBlocking:
-    pushfq
     cli
 
     test dword [rdi], 1
@@ -57,7 +56,6 @@ acquireLockBlocking:
     lock bts dword [rdi], 0
     jc .wait
 
-    popfq
     mov rax, 1
     ret
 
@@ -72,15 +70,11 @@ acquireLockBlocking:
 global releaseLock
 align 16
 releaseLock:
-    pushfq
-    cli
-
     xor rax, rax
     test dword [rdi], 1
     jz .done
 
     mov [rdi], eax
 
 .done:
-    popfq
     ret