Hello, I am facing a problem with enabling the IOMMU. Dec 21 15:50:57 prasad-kvm kernel: [ 0.000000] Aperture pointing to e820 RAM. Ignoring. Dec 21 15:50:57 prasad-kvm kernel: [ 0.000000] Your BIOS doesn't leave a aperture memory hole Dec 21 15:50:57 prasad-kvm kernel: [ 0.000000] Please enable the IOMMU option in the BIOS setup Dec 21 15:50:57 prasad-kvm kernel: [ 2.790913] pci 0000:01:05.0: Firmware left e100 interrupts enabled; disabling Dec 21 15:50:57 prasad-kvm kernel: [ 2.791941] pci 0000:00:00.2: PCI INT A -> GSI 55 (level, low) -> IRQ 55 Dec 21 15:50:57 prasad-kvm kernel: [ 2.792775] AMD-Vi: Enabling IOMMU at 0000:00:00.2 cap 0x40 Dec 21 15:50:57 prasad-kvm kernel: [ 2.800989] AMD-Vi: Lazy IO/TLB flushing enabled I have enabled IOMMU in the BIOS, but I am not sure why it is still asking to enabled IOMMU in BIOS. Do I need to worry about this? Besides I don't see the DMAR message similar to the one mentioned on the link http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM prasad@prasad-kvm:~/KVM/kvm$ grep DMAR .config CONFIG_DMAR=y CONFIG_DMAR_DEFAULT_ON=y CONFIG_DMAR_FLOPPY_WA=y prasad@prasad-kvm:~/KVM/kvm$ dmesg | grep -i dmar prasad@prasad-kvm:~/KVM/kvm$ Is there any problem with IOMMU? Thanks and Regards, Prasad Joshi (Student ID: 19015523) MRes Systems Engineering -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
