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This commit is contained in:
Alex
2022-10-10 23:31:46 +03:00
parent 4b6683823f
commit 32a17c5e63
20 changed files with 21 additions and 21 deletions
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64
Architecture/amd64/MultipleAPICDescriptionTable.cpp Normal file
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#include "acpi.hpp"
#include <memory.hpp>
#include <debug.h>
namespace ACPI
{
MADT::MADT(ACPI::MADTHeader *madt)
{
LAPICAddr = (LAPIC *)(uintptr_t)madt->LocalControllerAddress;
for (uint8_t *ptr = (uint8_t *)(madt->Entries);
(uintptr_t)(ptr) < (uintptr_t)(madt) + madt->Header.Length;
ptr += *(ptr + 1))
{
switch (*(ptr))
{
case 0:
{
if (ptr[4] & 1)
{
lapic.push_back((LocalAPIC *)ptr);
trace("Local APIC %#llx (APIC %#llx) found.", lapic.back()->ACPIProcessorId, lapic.back()->APICId);
CPUCores++;
}
break;
}
case 1:
{
ioapic.push_back((MADTIOApic *)ptr);
trace("I/O APIC %#llx (Address %#llx) found.", ioapic.back()->APICID, ioapic.back()->addr);
Memory::Virtual().Map((void *)(uintptr_t)ioapic.back()->addr, (void *)(uintptr_t)ioapic.back()->addr, Memory::PTFlag::RW | Memory::PTFlag::PCD); // Make sure that the address is mapped.
break;
}
case 2:
{
iso.push_back((MADTIso *)ptr);
trace("ISO (IRQ:%#llx, BUS:%#llx, GSI:%#llx, %s/%s) found.",
iso.back()->IRQSource, iso.back()->BuSSource, iso.back()->GSI,
iso.back()->Flags & 0x00000004 ? "Active High" : "Active Low",
iso.back()->Flags & 0x00000100 ? "Edge Triggered" : "Level Triggered");
break;
}
case 4:
{
nmi.push_back((MADTNmi *)ptr);
trace("NMI %#llx (lint:%#llx) found.", nmi.back()->processor, nmi.back()->lint);
break;
}
case 5:
{
LAPICAddr = (LAPIC *)ptr;
trace("APIC found at %#llx", LAPICAddr);
break;
}
}
Memory::Virtual().Map((void *)LAPICAddr, (void *)LAPICAddr, Memory::PTFlag::RW | Memory::PTFlag::PCD); // I should map more than one page?
}
trace("Total CPU cores: %d", CPUCores);
}
MADT::~MADT()
{
}
}