IntelMP.h

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/*
 * Copyright (C) 2015 Niek Linnenbank
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __LIBARCH_INTEL_MP_H
#define __LIBARCH_INTEL_MP_H
 
#define MPINFOADDR 0x10000
 
#ifndef __ASSEMBLER__
 
#include <Types.h>
#include <List.h>
#include <BitOperations.h>
#include <IntController.h>
#include <CoreInfo.h>
#include <CoreManager.h>
#include "IntelIO.h"
 
class MemoryContext;
class IntelPIT;
class IntelAPIC;
 
class IntelMP : public CoreManager
{
  private:
 
    static const uint MPFloatSignature = 0x5f504d5f;
 
    static const uint MPEntryProc = 0;
 
    static const Address MPEntryAddr = 0xf000;
 
    static const Address MPInfoAddr = MPINFOADDR;
 
    static const Address MPAreaAddr = 0x1000;
 
    static const Size MPAreaSize = 0x100000-0x1000;
 
    typedef struct MPFloat
    {
        unsigned long signature;
        unsigned long configAddr;
        unsigned char length;
        unsigned char revision;
        unsigned char checksum;
        unsigned char feature1;
        unsigned long feature2;
    }
    MPFloat;
 
    typedef struct MPConfig
    {
        char signature[4];
        unsigned short length;
        unsigned char revision;
        unsigned char checksum;
        char oemId[8];
        char productId[12];
        unsigned long oemAddr;
        unsigned short oemLength;
        unsigned short count;
        unsigned long apicAddr;
        unsigned long reserved;
    }
    MPConfig;
 
    typedef struct MPEntry
    {
        unsigned char type;
        unsigned char apicId;
        unsigned char apicRevision;
        unsigned char cpuFlags;
        u32 signature;
        u32 features;
        u32 reserved[2];
    }
    MPEntry;
 
  public:
 
    IntelMP(IntelAPIC & apic);
 
    virtual Result initialize();
 
    virtual Result discover();
 
    virtual Result boot(CoreInfo *info);
 
  private:
 
    MPEntry * parseEntry(MPEntry *entry);
 
    MPConfig * scanMemory(Address addr);
 
  private:
 
    IntelIO m_bios;
 
    IntelIO m_lastMemory;
 
    IntelAPIC & m_apic;
};
 
#endif /* __ASSEMBLER__ */
#endif /* __LIBARCH_INTEL_MP_H */