VMCI_MAX_GUEST_QP_MEMORY
(_prod_qsize) + (_cons_qsize) <= VMCI_MAX_GUEST_QP_MEMORY)
if (size > min_t(size_t, VMCI_MAX_GUEST_QP_MEMORY, SIZE_MAX - PAGE_SIZE))
#define VMCI_MAX_GUEST_QP_COUNT (VMCI_MAX_GUEST_QP_MEMORY / PAGE_SIZE / 2)