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# INTN
# EFIAPI
# XenHypercall2 (
# IN VOID *HypercallAddr,
# IN OUT INTN Arg1,
# IN OUT INTN Arg2
# );
ASM_GLOBAL ASM_PFX(XenHypercall2)
ASM_PFX(XenHypercall2):
push %rdi
push %rsi
# Copy HypercallAddr to rax
movq %rcx, %rax
# Copy Arg1 to the register expected by Xen
movq %rdx, %rdi
# Copy Arg2 to the register expected by Xen
movq %r8, %rsi
# Call HypercallAddr
call *%rax
pop %rsi
pop %rdi
ret
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