ptos/amd64: cpu: Add Local APIC timer ISR stub

Signed-off-by: Chloe M <chloe@mensia.org>
2026-07-14 16:39:22 -04:00
parent fcfe1dfb4a
commit 0408b34438
2 changed files with 17 additions and 0 deletions
@@ -349,4 +349,12 @@ MdLapicInit(KPCR *Kpcr)

    /* Calibrate the timer */
    LapicTimerCalibrate(Mcb);
+
+    /* Set the LAPIC timer ISR gate */
+    MdIdtSetGate(
+        0x81,
+        (UPTR)LapicTmrIsr,
+        IDT_INT_GATE,
+        0
+    );
 }
@@ -143,3 +143,12 @@ TrapPageFault:
 1:  cli
    hlt
    jmp 1b
+
+    .globl LapicTmrIsr
+LapicTmrIsr:
+    INTR_ENTRY($0x81)
+    mov %rsp, %rdi
+    call HalContextSwitch
+1:  cli
+    hlt
+    jmp 1b