PF Resizable BAR Capability (PF_RESIZE_BAR_CAP_0_2_0_PCI) – Offset 424
PF Resizable capability reports support for PF Resizing of Gfx device PF LMEMBAR sizes.
| Bit Range | Default | Access | Field Name and Description |
| 31:24 | 0h | RO | Reserved |
| 23:12 | 1h | RO | PFSUPSIZES (PFSUPSIZES) Bit 12: Function will operate with BAR sized to 256MB. Bit 13: Function will operate with BAR sized to 512MB. Bit 14: Function will operate with BAR sized to 1GB. Bit 15: Function will operate with BAR sized to 2GB. Bit 16: Function will operate with BAR sized to 4GB. Bit 17: Function will operate with BAR sized to 8GB. Bit 18: Function will operate with BAR sized to 16GB. Bit 19: Function will operate with BAR sized to 32GB. Bit 20: Function will operate with BAR sized to 64GB. Bit 21: Function will operate with BAR sized to 128GB. Bit 22: Function will operate with BAR sized to 256GB. Bit 23: Function will operate with BAR sized to 512GB. |
| 11:4 | 0h | RO | PFUNSUPSIZES (PFUNSUPSIZES) Hardwired to 0s. Bit 4: Function will operate with BAR sized to 1MB. Bit 5: Function will operate with BAR sized to 2MB. Bit 6: Function will operate with BAR sized to 4MB. Bit 7: Function will operate with BAR sized to 8MB. Bit 8: Function will operate with BAR sized to 16MB. Bit 9: Function will operate with BAR sized to 32MB. Bit 10: Function will operate with BAR sized to 64MB. Bit 11: Function will operate with BAR sized to 128MB. |
| 3:0 | 0h | RO | Reserved |