Re: bhyve passthru problem

Ciao Oleksandr.

I can't produce patches,I'm not a programmer. But I conduct experiments
every day,changing parameters,system files between different FreeBSD
versions,operating systems and tools.

Can't you use virtio-net instead of passing through the physical network
interface,like this for example : -s 13,virtio-net,tap18 \ in your bhyve
guest ?

You can try these bhyve versions : (try both)

https://drive.google.com/drive/folders/14OMOjdyS5NPQ75ISatcpCWegU0udzG0r?usp=sharing

On Sat, Jun 15, 2024 at 9:17 AM Oleksandr Kryvulia <shuriku@shurik.kiev.ua>
wrote:

> 14.06.24 10:50, Peter Grehan:
> >> I don't know why bhyve validates the BAR size. The commit adding this
> >> check is old [1] and doesn't explain it. What bhyve could do is
> >> rounding up the BAR size to a full page size when allocating memory for
> >> the BAR.
> >>
> >> [1] https://github.com/freebsd/freebsd-
> >> src/commit/7a902ec0eccc752c9c38533ed123121eaaea1225
> >
> >  At the time, BIOSs would often place device BARs of less than a page
> > size in the same physical page. Since EPT only gives page granularity,
> > this would result in all those devices being available to the guest
> > even if they hadn't been passed through.
> >
> Peter, can you explain how can I use this device in a guest without
> passing through?
>
>
>

-- 
Mario.