I stumbled upon an issue, when i was trying to launch VM on my Centos with pci passthrough for pcie network card.
After some research, i figured out, that i need to apply ACS override patch on my centos, but when i started to reading about how to do this, i didn't found any understandable instructions(for me), so i came here to ask:
What exact actions i need to do to apply ACS override patch on my kernel?
Or, at least, in what direction i need to search?
My kernel version: 3.10.0-693.5.2.el7.x86_64
All my pci network cards (2 cards, 4 and 2 ports) goes to group 1 (same does my processor).
Help with ACS Override patch
Re: Help with ACS Override patch
You do not need to patch anything to use PCI passthrough.
https://access.redhat.com/documentation ... figuration
https://access.redhat.com/documentation ... figuration
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
Re: Help with ACS Override patch
I read this thred, and tried once more from scratch, but this doesn't work for me =(
I got this situation with my groups:
My CPU:
Can you, please, suggest something to do to solve this?
If you need any info about my system, i'll be glad to provide it.
I got this situation with my groups:
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dmesg |grep iommu
[ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.10.0-693.5.2.el7.x86_64 root=/dev/mapper/centos-root ro nomodeset rhgb quiet intel_iommu=on iommu=pt
[ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0-693.5.2.el7.x86_64 root=/dev/mapper/centos-root ro nomodeset rhgb quiet intel_iommu=on iommu=pt
[ 2.715954] iommu: Adding device 0000:00:00.0 to group 0
[ 2.715970] iommu: Adding device 0000:00:01.0 to group 1
[ 2.715977] iommu: Adding device 0000:00:01.1 to group 1
[ 2.715983] iommu: Adding device 0000:00:14.0 to group 2
[ 2.715990] iommu: Adding device 0000:00:19.0 to group 3
[ 2.715996] iommu: Adding device 0000:00:1a.0 to group 4
[ 2.716005] iommu: Adding device 0000:00:1c.0 to group 5
[ 2.716012] iommu: Adding device 0000:00:1c.1 to group 6
[ 2.716018] iommu: Adding device 0000:00:1d.0 to group 7
[ 2.716033] iommu: Adding device 0000:00:1f.0 to group 8
[ 2.716039] iommu: Adding device 0000:00:1f.2 to group 8
[ 2.716045] iommu: Adding device 0000:00:1f.3 to group 8
[ 2.716051] iommu: Adding device 0000:00:1f.6 to group 8
[ 2.716055] iommu: Adding device 0000:01:00.0 to group 1
[ 2.716059] iommu: Adding device 0000:01:00.1 to group 1
[ 2.716063] iommu: Adding device 0000:01:00.2 to group 1
[ 2.716066] iommu: Adding device 0000:01:00.3 to group 1
[ 2.716071] iommu: Adding device 0000:02:00.0 to group 1
[ 2.716074] iommu: Adding device 0000:02:00.1 to group 1
[ 2.716081] iommu: Adding device 0000:03:00.0 to group 9
[ 2.716084] iommu: Adding device 0000:04:00.0 to group 9
[ 2.716090] iommu: Adding device 0000:05:00.0 to group 10
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Intel(R) Xeon(R) CPU E3-1275L v3 @ 2.70GHz
If you need any info about my system, i'll be glad to provide it.