SVM_IOIO_SIZE_SHIFT
#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
SVM_IOIO_SIZE_SHIFT;
size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
exit_info |= bytes << SVM_IOIO_SIZE_SHIFT;
#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)