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Enable allocated APIC interrupt and validate IO APIC mapping
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This commit is contained in:
Aiken Harris
2026-05-06 19:50:54 +02:00
parent 3262ad78c1
commit 8107692d83
1 changed files with 10 additions and 5 deletions
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15
xtoskrnl/hl/x86/pic.cc
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@@ -52,7 +52,7 @@ HL::Pic::AllocateSystemInterrupt(IN UCHAR Irq,
Register.DeliveryStatus = 0; Register.DeliveryStatus = 0;
Register.Destination = HL::Pic::ReadApicRegister(APIC_ID) >> 24; Register.Destination = HL::Pic::ReadApicRegister(APIC_ID) >> 24;
Register.DestinationMode = APIC_DM_Physical; Register.DestinationMode = APIC_DM_Physical;
Register.Mask = 1; Register.Mask = 0;
Register.PinPolarity = ((Flags & 0x03) == 0x03) ? 1 : 0; Register.PinPolarity = ((Flags & 0x03) == 0x03) ? 1 : 0;
Register.RemoteIRR = 0; Register.RemoteIRR = 0;
Register.Reserved = 0; Register.Reserved = 0;
@@ -483,10 +483,15 @@ HL::Pic::InitializeIOApic(VOID)
while(ControllerIndex < ControllerCount) while(ControllerIndex < ControllerCount)
{ {
/* Map the I/O APIC controller memory into hardware space */ /* Map the I/O APIC controller memory into hardware space */
MM::HardwarePool::MapHardwareMemory(Controllers[ControllerIndex].PhysicalAddress, Status = MM::HardwarePool::MapHardwareMemory(Controllers[ControllerIndex].PhysicalAddress,
1, 1,
FALSE, FALSE,
(PVOID*)&Controllers[ControllerIndex].VirtualAddress); (PVOID*)&Controllers[ControllerIndex].VirtualAddress);
if(Status != STATUS_SUCCESS || Controllers[ControllerIndex].VirtualAddress == 0)
{
DebugPrint(L"ERROR: Failed to map I/O APIC Controller\n");
KE::Crash::Panic(0x0E, 0x0, 0x0, 0x0, 0x0);
}
/* Perform a memory barrier */ /* Perform a memory barrier */
AR::CpuFunc::MemoryBarrier(); AR::CpuFunc::MemoryBarrier();