(Asm\C\Drivers) Interrupt Descriptor Table on x64 Vista

Question

Is there any way to save\load Interrupt Descriptor Table on x64 Vista SP2 (AMD64) without Blue Screen? Here is my code in MASM that makes Blue Screen:

IDTINFO struct
    word idtLimit       ?
    dword lowIDTBase    ?
    dword highIDTBase   ?
IDTINFO ends

getInterruptDescriptorTable proto :DWORD

.code
    getInterruptDescriptorTable PROC idtInfo_arg:DWORD
        local idtInfo_locl :IDTINFO

        sidt idtInfo_locl
        lea eax, idtInfo_locl
        push [eax]
        mov eax, idtInfo_arg
        pop [eax]
    getInterruptDescriptorTable endp
end

Well, I'm new at Assembly language, so there can be some obvious mistakes.

EDIT This is how prototype in .h file looks like:

extern void getInterruptDescriptorTable(IDTINFO*);

Here, call in .c file:

IDTINFO idtInfo = {0};
getInterruptDescriptorTable(&idtInfo);

IDTINFO structure in C:

typedef struct
{
    unsigned short idtLimit;
    unsigned int lowIDTBase;
    unsigned int highIDTBase;
} IDTINFO;

Answer 1

x64 systems are protected by patch guard mechanism. You can`t path idt without bsod: http://en.wikipedia.org/wiki/Kernel_Patch_Protection

Answer 2

More than likely it's an issue with declaring idtInfo_arg as a DWORD - because you're in 64-bit mode, you will need to change these to QWORD, and use rax instead of eax.

Could you perhaps post the code which calls your function?