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#ifndef CPUID_H
#define CPUID_H
#include <types.h>
#include <MemoryOperations.h>
// To declare cpuid::Executor::Executor()
#include "../../../kernel/details/Platform.h"
namespace cpuid
{
#ifdef __cplusplus
extern "C" {
#endif
/**
* Existence check on cpuid command
*
* @return true if cpuid available, false otherwise
*/
bool CPUIDCHK();
#ifdef __cplusplus
};
#endif
/**
* Structure to keep results of cpuid execution command
*/
struct cpuidOutRegs
{
uint32 eax;
uint32 ebx;
uint32 ecx;
uint32 edx;
/**
* Check on null
*
* @return True if all fields are null, false otherwise
*/
bool isNull();
};
/**
* Perform cpuid instruction with only leaf
*
* @param initial value passes to eax register
*
* @return output registers (eax, ebx, ecx, edx)
*/
inline cpuidOutRegs cpuid(uint32 eax);
/**
* Perform cpuid instruction with leaf and subleaf
*
* @param initial value passes to eax register
* @param number of subleaf passes to ecx register
*
* @return output registers (eax, ebx, ecx, edx)
*/
inline cpuidOutRegs cpuid(uint32 eax, uint32 ecx);
/**
* Data representation for cpuid command.
* Used to inherits from classes which commands are passing only initial value
*
* @note Only for inheritance
*/
struct CmdWithNoSubleaf
{
const uint32 initVal;
// This field is always handle by validator function. See `valid`
// function description below
bool isValid;
CmdWithNoSubleaf() = delete;
protected:
CmdWithNoSubleaf(uint32 cmdPass) : initVal(cmdPass), isValid(true) {};
};
/**
* This class used for additional value for subleaf
*
* @note Also for inheritance purposes only
*/
struct CmdWithSubleaf : public CmdWithNoSubleaf
{
const uint32 subleaf;
CmdWithSubleaf() = delete;
protected:
CmdWithSubleaf(uint32 cmdp, uint32 subleafp) : CmdWithNoSubleaf(cmdp),
subleaf(subleafp){};
};
/**
* Provides details for cpuid(0h) instruction
*/
struct BasicInfo : public CmdWithNoSubleaf
{
constexpr static uint32 initialValue = 0;
uint32 maxCmdForBasicInfo;
char manufacturerString[13];
BasicInfo() : CmdWithNoSubleaf(initialValue) {};
};
/**
* Provides details for cpuid(1h) instruction
*/
struct VersionInfo : public CmdWithNoSubleaf
{
constexpr static uint32 initialValue = 0;
VersionInfo() : CmdWithNoSubleaf(initialValue) {};
inline uint8 getFamilyId();
inline uint8 getModelId();
private:
struct eaxVersionInformation
{
uint8 steppingId : 4,
modelId : 4,
familyId : 4,
processorType : 2,
extendedModelId : 4,
extendedFamilyId : 4;
};
struct ebxVersionInformation
{
uint8 brandIndex,
lineSize,
maxNumberId,
initialApicId;
};
public:
eaxVersionInformation eax;
ebxVersionInformation ebx;
uint32 ecx, edx;
// ECX register flags
enum class EcxFlags : uint32
{
SSE3 = 1,
TablePCLMULQDQ = (1 << 1),
DTES64 = (1 << 2),
MONITOR = (1 << 3),
DS_CPL = (1 << 4),
VMX = (1 << 5),
SMX = (1 << 6),
EIST = (1 << 7),
TM2 = (1 << 8),
SSSE3 = (1 << 9),
SNXT_ID = (1 << 10),
SDBG = (1 << 11),
FMA = (1 << 12),
CMPXCHG16B = (1 << 13),
xTPR_UPDATECONTROL = (1 << 14),
PDCM = (1 << 15),
PCID = (1 << 17),
DCA = (1 << 18),
SSE4_1 = (1 << 19),
SSE4_2 = (1 << 20),
x2APIC = (1 << 21),
MOVBE = (1 << 22),
POPCNT = (1 << 23),
TSC_DEADLINE = (1 << 24),
AESNI = (1 << 25),
XSAVE = (1 << 26),
OSXSAVE = (1 << 27),
AVX = (1 << 28),
F16C = (1 << 29),
RDRAND = (1 << 30),
};
// EDX register flags
enum class EdxFlags : uint32
{
FPU = 1,
VME = (1 << 1),
DE = (1 << 2),
PSE = (1 << 3),
TSC = (1 << 4),
MSR = (1 << 5),
PAE = (1 << 6),
MCE = (1 << 7),
CX8 = (1 << 8),
APIC = (1 << 9),
SEP = (1 << 11),
MTRR = (1 << 12),
PGE = (1 << 13),
MCA = (1 << 14),
CMOV = (1 << 15),
PAT = (1 << 16),
PSE_36 = (1 << 17),
PSN = (1 << 18),
CLFSH = (1 << 19),
DS = (1 << 21),
ACPI = (1 << 22),
MMX = (1 << 23),
FXSR = (1 << 24),
SSE = (1 << 25),
SSE2 = (1 << 26),
SS = (1 << 27),
HTT = (1 << 28),
TM = (1 << 29),
PBE = (1 << 31),
};
};
/**
* Getters are acquire information from cpuid instruction
* and then put in some cpuid command instance
*
* @param cpuid command which needs to acquire processor details by one of some
* commands
*/
void acquireInformation(BasicInfo &cpuidRes);
void acquireInformation(VersionInfo &cpuidRes);
/**
* Validators are check filling correctness for some cpuid command instance
*
* @param[out] cpuid command instance (as ins)
*
* @result precised `ins.isValid` value
*/
bool validate(/*Reference command type*/);
};
#endif
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