---
title: PG_PCI_MAX_MSI_VECTORS
framework: Paravirtualized Graphics
role: symbol
role_heading: Global Variable
platforms: [Mac Catalyst 14.0+, macOS 11.0+]
path: paravirtualizedgraphics/pg_pci_max_msi_vectors
---

# PG_PCI_MAX_MSI_VECTORS

The number of MSI vectors that you need to allocate for the graphics configuration.

## Declaration

```swift
var PG_PCI_MAX_MSI_VECTORS: Int32 { get }
```

## See Also

### PCI Device Characteristics

- [PG_PCI_DEVICE_ID](paravirtualizedgraphics/pg_pci_device_id.md)
- [PG_PCI_VENDOR_ID](paravirtualizedgraphics/pg_pci_vendor_id.md)
- [PG_PCI_BAR_MMIO](paravirtualizedgraphics/pg_pci_bar_mmio.md)
- [PGCopyOptionROMURL()](paravirtualizedgraphics/pgcopyoptionromurl().md)