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#define VMI_CALL_CPUID			0
#define VMI_CALL_WRMSR			1
#define VMI_CALL_RDMSR			2
#define VMI_CALL_SetGDT			3
#define VMI_CALL_SetLDT			4
#define VMI_CALL_SetIDT			5
#define VMI_CALL_SetTR			6
#define VMI_CALL_GetGDT			7
#define VMI_CALL_GetLDT			8
#define VMI_CALL_GetIDT			9
#define VMI_CALL_GetTR			10
#define VMI_CALL_WriteGDTEntry		11
#define VMI_CALL_WriteLDTEntry		12
#define VMI_CALL_WriteIDTEntry		13
#define VMI_CALL_UpdateKernelStack	14
#define VMI_CALL_SetCR0			15
#define VMI_CALL_SetCR2			16
#define VMI_CALL_SetCR3			17
#define VMI_CALL_SetCR4			18
#define VMI_CALL_GetCR0			19
#define VMI_CALL_GetCR2			20
#define VMI_CALL_GetCR3			21
#define VMI_CALL_GetCR4			22
#define VMI_CALL_WBINVD			23
#define VMI_CALL_SetDR			24
#define VMI_CALL_GetDR			25
#define VMI_CALL_RDPMC			26
#define VMI_CALL_RDTSC			27
#define VMI_CALL_CLTS			28
#define VMI_CALL_EnableInterrupts	29
#define VMI_CALL_DisableInterrupts	30
#define VMI_CALL_GetInterruptMask	31
#define VMI_CALL_SetInterruptMask	32
#define VMI_CALL_IRET			33
#define VMI_CALL_SYSEXIT		34
#define VMI_CALL_Halt			35
#define VMI_CALL_Reboot			36
#define VMI_CALL_Shutdown		37
#define VMI_CALL_SetPxE			38
#define VMI_CALL_SetPxELong		39
#define VMI_CALL_UpdatePxE		40
#define VMI_CALL_UpdatePxELong		41
#define VMI_CALL_MachineToPhysical	42
#define VMI_CALL_PhysicalToMachine	43
#define VMI_CALL_AllocatePage		44
#define VMI_CALL_ReleasePage		45
#define VMI_CALL_InvalPage		46
#define VMI_CALL_FlushTLB		47
#define VMI_CALL_SetLinearMapping	48
  
#define VMI_CALL_SetIOPLMask		61
#define VMI_CALL_SetInitialAPState	62
#define VMI_CALL_APICWrite		63
#define VMI_CALL_APICRead		64
#define VMI_CALL_SetLazyMode		73

typedef unsigned long long uint64_t;

/* VMI Relocation types */
#define VMI_RELOCATION_NONE     0
#define VMI_RELOCATION_CALL_REL 1
#define VMI_RELOCATION_JUMP_REL 2
#define VMI_RELOCATION_NOP	3

struct vmi_relocation_info {
	unsigned char *eip;
	unsigned char type;
	unsigned char reserved[3];
};

static void putc(char value)
{
	asm volatile("outb %b0, %w1": :"a" (value), "Nd" (0x410));
}

static void puts(const char *string)
{
	for (; *string; string++) putc(*string);
}

static void putint(int value)
{
	asm volatile("outl %0, %w1": :"a" (value), "Nd" (0x414));
}

static void __attribute__((regparm(3))) vmiSysExit(void)
{
	puts("foo\n");
	asm volatile("sti; sysexit");
}

static void __attribute__((regparm(3))) vmiIRET(void)
{
	puts("foo\n");
	asm volatile("iret");
}

uint64_t __attribute__((regparm(2))) vmi_get_relocation_info(int call)
{
	struct vmi_relocation_info reloc;

	if (call == VMI_CALL_SYSEXIT) {
		puts("relocation(");
		putint(call);
		puts(") - ");
		putint((unsigned long)vmiSysExit);
		puts("\n");
		reloc.eip = (void *)vmiSysExit;
		reloc.type = VMI_RELOCATION_JUMP_REL;
	} else if (call == VMI_CALL_IRET) {
		reloc.eip = (void *)vmiIRET;
		reloc.type = VMI_RELOCATION_JUMP_REL;
	} else {
		reloc.eip = 0;
		reloc.type = 0;
	}

	return *(uint64_t *)&reloc;
}