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vfio-passthrough

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🔧 Diagnose and fix the VFIO error "Firmware has requested this device have a 1:1 IOMMU mapping" that blocks PCIe passthrough on AMD boards. Your GPU is rarely at fault: the firmware's ACPI IVRS table reserves whole PCI bus ranges. Patches it via early-initramfs — survives kernel updates. 🖥️

  • Updated Aug 13, 2026
  • Python

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