From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Xen-devel <xen-devel@lists.xen.org>
Subject: Re: Is: pci=assign-busses blows up Xen 4.4
Date: Mon, 24 Feb 2014 11:15:24 -0500 [thread overview]
Message-ID: <20140224161524.GJ816@phenom.dumpdata.com> (raw)
In-Reply-To: <530B1BD3020000780011E9B8@nat28.tlf.novell.com>
On Mon, Feb 24, 2014 at 09:15:47AM +0000, Jan Beulich wrote:
> >>> On 21.02.14 at 20:18, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
> > 4). Make Xen do the bus re-assignment.
> >
> > The attached patch is an interesting "solution" to the BIOS
> > not doing the right bus-extending with SR-IOV devices.
>
> Nice that you got this to work, but this is definitely not the route
> to go: There's no way we can guarantee to do this re-numbering
<nods>
> on segments other than segment 0 (since we can't necessarily
> access the config spaces of the devices on other segments
> before Dom0 telling us necessary bits of information).
>
Correct.
> Apart from that, I'd also really like to avoid duplicating code from
> Linux into the hypervisor when all that is needed is making that
> code work right in an admittedly rather special case.
<nods>
>
> Jan
>
prev parent reply other threads:[~2014-02-24 16:15 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-21 21:54 Regression compared to Xen 4.3, Xen 4.4-rc2 - pci_prepare_msix+0xb1/0x12 - BOOM Konrad Rzeszutek Wilk
2014-01-22 0:23 ` Andrew Cooper
2014-01-22 0:24 ` [PATCH] x86/msi: Validate the guest-identified PCI devices in pci_prepare_msix() Andrew Cooper
2014-01-22 4:31 ` Konrad Rzeszutek Wilk
2014-01-22 9:49 ` Jan Beulich
2014-01-22 10:28 ` Andrew Cooper
2014-01-22 12:08 ` Jan Beulich
2014-01-22 21:40 ` Konrad Rzeszutek Wilk
2014-01-23 8:24 ` Jan Beulich
2014-01-24 15:01 ` Konrad Rzeszutek Wilk
2014-01-24 15:55 ` Jan Beulich
2014-01-24 16:19 ` Jan Beulich
2014-01-24 17:43 ` Konrad Rzeszutek Wilk
2014-01-24 21:56 ` Is: pci=assign-busses blows up Xen 4.4 Was:Re: " Konrad Rzeszutek Wilk
2014-02-05 20:07 ` Konrad Rzeszutek Wilk
2014-02-06 9:02 ` Jan Beulich
2014-02-21 19:18 ` Konrad Rzeszutek Wilk
2014-02-24 9:15 ` Is: pci=assign-busses blows up Xen 4.4 Jan Beulich
2014-02-24 16:15 ` Konrad Rzeszutek Wilk [this message]
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