cannot install FreeBSD 12.0 Xen 4.12.1 on Intel Core i7 CPU 930

[Marcin Cieslak]

On Wed, 16 Oct 2019, Stefan Parvu wrote:

>>
>> Does it happen in Xen or in FreeBSD dom0 kernel?
>
> Xen. Here:
> http://www.kronometrix.org/bugs/freebsd_xen.jpg
>
>> I have Xeon E3-1234 but I run 11.2-STABLE with xen-kernel-4.7.2_9 for a very long time already.
>> I also have:
>>
>> hw.pci.mcfg=0
>> machdep.hyperthreading_allowed=0
>
> Should I add these to sysctl.conf ? I will try tomorrow. To me it looks whatever I try I cannot
> get IOMMU on this hdw with FreeBSD 12 and Xen 4.12.1. I havent tried another FreeBSD version.

No idea, just showing what I have. Maybe totally not relevant to what you are having -
I am going to try 12 and Xen 4.12.1 soon.

I also don't have "iommu=required,force" in my Xen commandline:

"dom0_mem=4096M dom0_max_vcpus=1 dom0pvh=1 com1=115200,8n1 guest_loglvl=all loglvl=all vga=text-80x43,keep console=vga"
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