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[HALX86/APIC] Read APIC Id from APIC instead of using initial Id

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This is needed on some hardware systems, where the BIOS has modified the actual APIC IDs.
The timer interrupt already did this, but in a broken way.
This commit is contained in:
Timo Kreuzer
2025-04-24 11:36:12 +00:00
parent faaac75546
commit 35fd771c84
1 changed files with 4 additions and 4 deletions
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hal/halx86/apic/apic.c
+4 -4
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@@ -385,7 +385,7 @@ HalpAllocateSystemInterrupt(
ReDirReg.TriggerMode = APIC_TGM_Edge;
ReDirReg.Mask = 1;
ReDirReg.Reserved = 0;
ReDirReg.Destination = 0;
ReDirReg.Destination = ApicRead(APIC_ID) >> 24;
/* Initialize entry */
ApicWriteIORedirectionEntry(Irq, ReDirReg);
@@ -484,7 +484,7 @@ ApicInitializeIOApic(VOID)
ReDirReg.TriggerMode = APIC_TGM_Edge;
ReDirReg.Mask = 1;
ReDirReg.Reserved = 0;
ReDirReg.Destination = 0;
ReDirReg.Destination = ApicRead(APIC_ID) >> 24;
/* Loop all table entries */
for (Index = 0; Index < APIC_MAX_IRQ; Index++)
@@ -505,7 +505,7 @@ ApicInitializeIOApic(VOID)
ReDirReg.DestinationMode = APIC_DM_Physical;
ReDirReg.TriggerMode = APIC_TGM_Level;
ReDirReg.Mask = 1;
ReDirReg.Destination = ApicRead(APIC_ID);
ReDirReg.Destination = ApicRead(APIC_ID) >> 24;
ApicWriteIORedirectionEntry(APIC_CLOCK_INDEX, ReDirReg);
}
@@ -704,7 +704,7 @@ HalEnableSystemInterrupt(
ReDirReg.Vector = Vector;
ReDirReg.MessageType = APIC_MT_Fixed;
ReDirReg.DestinationMode = APIC_DM_Physical;
ReDirReg.Destination = KeGetCurrentPrcb()->InitialApicId;
ReDirReg.Destination = ApicRead(APIC_ID) >> 24;
ReDirReg.TriggerMode = (InterruptMode == LevelSensitive) ?
APIC_TGM_Level : APIC_TGM_Edge;
ReDirReg.Mask = FALSE;