From: George Dunlap <dunlapg@umich.edu>
To: AL13N <alien@rmail.be>, Ian Jackson <Ian.Jackson@citrix.com>,
Anthony Perard <anthony.perard@citrix.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: pci passthrough issue introduced between 4.14.1 and 4.15.0
Date: Tue, 1 Jun 2021 11:03:50 +0100 [thread overview]
Message-ID: <CAFLBxZZqvdmGmSXS9P7XzsCahpyTcnrwQr+OLw-x_jqHwceWsg@mail.gmail.com> (raw)
In-Reply-To: <9562f5c0911567f12ed9fef8830f3018@mail.rmail.be>
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On Tue, Jun 1, 2021 at 8:34 AM AL13N <alien@rmail.be> wrote:
> Not 100% it's a bug or something i did wrong, but,
>
> with xl create i start a PV with 3 pci passthroughs
>
> after wards, xl pci-list shows all 3 nicely
>
> looking at the domU boot logs, pcifront is only creating one pci device
> and lspci in the guest shows only 1 pci entry
>
> in at least 4.14.1 it still works.
>
> looking deeper, if you start with only 1 entry or 0 and you do
> pci-attach for the other pci entries, all of this works fine.
>
> this is the pci section in question:
>
> pci=['0000:04:00.0,permissive=1',
> '0000:00:1a.0,permissive=1,rdm_policy=relaxed,seize=1',
> '0000:00:1d.0,permissive=1,rdm_policy=relaxed,seize=1']
>
> this works fine in 4.12.1 and 4.14.1, but fails in 4.15.0, however
>
> booting with pci=['0000:04:00.0,permissive=1'] and then doing
>
> []# xl pci-attach <domain>
> '0000:00:1a.0,permissive=1,rdm_policy=relaxed,seize=1'
> []# xl pci-attach <domain>
> '0000:00:1d.0,permissive=1,rdm_policy=relaxed,seize=1'
>
> also works,
>
Sounds like it might be a tools issue?
-George
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next prev parent reply other threads:[~2021-06-01 10:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-01 7:34 pci passthrough issue introduced between 4.14.1 and 4.15.0 AL13N
2021-06-01 10:03 ` George Dunlap [this message]
2021-06-01 7:36 AL13N
2021-06-01 10:08 ` Jan Beulich
2021-06-01 14:06 ` AL13N
2021-06-01 14:28 ` AL13N
2021-06-01 14:33 ` Jan Beulich
2021-06-01 14:44 ` AL13N
2021-06-01 14:48 ` AL13N
2021-06-01 15:50 ` AL13N
2021-06-01 14:53 ` Jan Beulich
2021-06-03 16:01 ` AL13N
2021-06-04 6:56 ` Jan Beulich
2021-06-04 7:10 ` Juergen Gross
2021-06-04 8:37 ` AL13N
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