Porting from Linux 32 bit to 64 bit

vikramaditya · #1 03-Dec-2008, 22:59

Hey,

i got this piece of code that will detect VMWare but this is for Linux 32 bit:

Code:

int vmInfo, vmVer;
asm("mov $0x564D5868, %eax");             	/* magic number     */
asm("movw $0x0A, %cx");
asm("movw $0x5658, %dx");  				/* VMware I/O port  */
asm("in  %dx, %eax"); //(or outl %eax, %dx)
asm("mov %%ebx, %0":  "=r"(vmInfo));
asm("movandq %%ecx, %0":  "=r"(vmVer));

It works perfectly fine on Linux 32 bit and will generate a crash while implementing "in" command.

I want to make it work on Linux 64 bit. It doesnt crash on 64 bit machine.

The only thing that i could that i came across was to replace eax with rax, ecx and rcx and ebx with rbx. i have tried that but it didn't work.

please help me making it work on Linux 64 bit machine....

Thanks

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