blob: 8547c30b81ee6f3ba2f46bc9c118471cf3d063e7 [file] [log] [blame]
SECTION .text
; INTN
; EFIAPI
; XenHypercall2 (
; IN VOID *HypercallAddr,
; IN OUT INTN Arg1,
; IN OUT INTN Arg2
; );
global ASM_PFX(XenHypercall2)
ASM_PFX(XenHypercall2):
; Save only ebx, ecx is supposed to be a scratch register and needs to be
; saved by the caller
push ebx
; Copy HypercallAddr to eax
mov eax, [esp + 8]
; Copy Arg1 to the register expected by Xen
mov ebx, [esp + 12]
; Copy Arg2 to the register expected by Xen
mov ecx, [esp + 16]
; Call HypercallAddr
call eax
pop ebx
ret