Re: bhyve passthru problem

I can try your files or better a patch against current.
Thank you, Mario.

14.06.24 10:27, Mario Marietto:
> Oleksandr,I would like to try an experiment to try to fix your 
> problem. If you agree,I could send you my bhyve and vmm.ko files,if 
> you want. I suspect that they may fix your problem. Let me know if you 
> want to try.
>
> On Fri, Jun 14, 2024 at 8:35 AM Corvin Köhne <corvink@freebsd.org> wrote:
>
>     On Thu, 2024-06-13 at 10:53 +0300, Oleksandr Kryvulia wrote:
>     >  I'm trying to passthru a wwan-adapter to linux guest using
>     > sysutils/vm-bhyve-devel.
>     >
>     >  ppt0@pci0:8:0:0:        class=0x0d4000 rev=0x01 hdr=0x00
>     > vendor=0x8086 device=0x7560 subvendor=0x1cf8 subdevice=0x8654
>     >     vendor     = 'Intel Corporation'
>     >     device     = 'XMM7560 LTE Advanced Pro Modem'
>     >     class      = wireless controller
>     >     subclass   = cellular controller/modem
>     >
>     >  The guest does not start with an error:
>     >
>     >  bhyve: passthru device 8/0/0 BAR 2: base 0xbc201000 or size 0x100
>     > not page aligned
>     >  bhyve: failed to initialize BARs for PCI 8/0/0
>     >  Device emulation initialization error: No such file or directory
>     >
>     >  What I am doing wrong?
>     >
>
>     The BAR size of your device is smaller than a page. Unfortunately, you
>     can't change it, so there's nothing you can do right now.
>
>     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
>
>
>     -- 
>     Kind regards,
>     Corvin
>
>
>
> -- 
> Mario.