[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] Xen 4.4 development update: Is PVH a blocker?
On Dec 16, 2013 11:37 AM, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx> wrote:
>
> On Mon, Dec 16, 2013 at 06:59:16PM +0100, Sander Eikelenboom wrote:
> >
> > Monday, December 16, 2013, 6:46:35 PM, you wrote:
> >
> > > On Mon, Dec 16, 2013 at 06:24:20PM +0100, Sander Eikelenboom wrote:
> > >>
> > >> Monday, December 16, 2013, 4:09:06 PM, you wrote:
> > >>
> > >> >> >> * qemu-upstream not freeing pirq
> > >> >> >> > http://www.gossamer-threads.com/lists/xen/devel/281498
> > >> >> >> > http://marc.info/?l=xen-devel&m=137265766424502
> > >> >> >> status: patches posted; latest patches need testing
> > >> >> >> Not a blocker.
> > >> >>
> > >> >> > I can't test it, b/c qemu-upstream does not work with PCI passthrough
> > >> >> > anymore.
> > >> >>
> > >> >> Strange, pci passthrough in general works for me on "simple" pci devices (usb cards, videograbber) with latest qemu-upstream and seabios upstream.
> > >> >> (if you have no need for pci rombars, no vga passthrough, no need for specifying funky things about which virtual functions to passthrough)
> > >> >>
> > >> >> What are you trying to passthrough ?
> > >>
> > >> > -bash-4.1# lspci -s 01:00.0 -v
> > >> > 01:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)
> > >> > Subsystem: Intel Corporation Gigabit ET Dual Port Server Adapter
> > >> > Flags: fast devsel, IRQ 16
> > >> > Memory at fbc20000 (32-bit, non-prefetchable) [disabled] [size=128K]
> > >> > Memory at fb800000 (32-bit, non-prefetchable) [disabled] [size=4M]
> > >> > I/O ports at e020 [disabled] [size=32]
> > >> > Memory at fbc44000 (32-bit, non-prefetchable) [disabled] [size=16K]
> > >> > Expansion ROM at fb400000 [disabled] [size=4M]
> > >> > Capabilities: [40] Power Management version 3
> > >> > Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
> > >> > Capabilities: [70] MSI-X: Enable- Count=10 Masked-
> > >> > Capabilities: [a0] Express Endpoint, MSI 00
> > >> > Capabilities: [100] Advanced Error Reporting
> > >> > Capabilities: [140] Device Serial Number 00-1b-21-ff-ff-45-d9-ac
> > >> > Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
> > >> > Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
> > >> > Kernel driver in use: pciback
> > >> > Kernel modules: igb
> > >>
> > >>
> > >> >> What problems do you have / errors do you see ?
> > >> >>
> > >>
> > >> > http://www.gossamer-threads.com/lists/xen/devel/309476?do=post_view_threaded
> > >>
> > >>
> > >> Could it be related to the outstanding issue (since 4.3) of:
> > >>
> > >> * PCI hole resize support hvmloader/qemu-traditional/qemu-upstream with PCI/GPU passthrough
> > >> > http://lists.xen.org/archives/html/xen-devel/2013-05/msg02813.html
> > >> > Where Stefano writes:
> > >> > 2) for Xen 4.4 rework the two patches above and improve
> > >> > i440fx_update_pci_mem_hole: resizing the pci_hole subregion is not
> > >> > enough, it also needs to be able to resize the system memory region
> > >> > (xen.ram) to make room for the bigger pci_hole
> > >>
> > >> Your card seems to need quite some resources, and restricted to 32bit, even other SR-IOV cards seems to to with less and or support 32 bit.
> > >>
> >
> > > I don't think that is the problem. The QEMU-xen did work at some point - until
> > > I blew away 'qemu-xen-dir' to get the newest and best. So I think the problem
> > > I am seeing is with QEMU 1.6 regression.
> >
> >
> > Could try to get the latest upstream qemu and seabios patches then by changing your trees in Config.mk to the upstream qemu tree:
> >
> > git://git.qemu.org/qemu.git
> >
> > and
> >
> > git://git.qemu.org/seabios.git
> > (at the extra config option questions, just except the defaults).
> >
> > It's what i run at the moment, could be there is a off-chance there is a patch upstream that fixes your problem that's not in the xen qemu upstream tree yet.
>
> I did this:
> diff --git a/Config.mk b/Config.mk
> index 2007b22..7702fff 100644
> --- a/Config.mk
> +++ b/Config.mk
> @@ -235,7 +235,13 @@ SEABIOS_UPSTREAM_URL ?= git://xenbits.xen.org/seabios.git
> endif
> OVMF_UPSTREAM_REVISION ?= 447d264115c476142f884af0be287622cd244423
> QEMU_UPSTREAM_REVISION ?= master
QEMU is bisectable so if the old rev worked you can find the commit that stopped working for youe card.
Regards,
Anthony Liguori
> -SEABIOS_UPSTREAM_TAG ?= rel-1.7.3.1
> +
> +SEABIOS_UPSTREAM_URL = git://git.qemu.org/seabios.git
> +QEMU_UPSTREAM_URL = git://git.qemu.org/qemu.git
> +
> +SEABIOS_UPSTREAM_TAG = origin/master
> +
> +#SEABIOS_UPSTREAM_TAG ?= rel-1.7.3.1
> # Fri Aug 2 14:12:09 2013 -0400
> # Fix bug in CBFS file walking with compressed files.
>
>
> rm -Rf tools/firmware/seabios-dir* tools/qemu-xen*
> rebuilt and had the same issue :-(
>
> >
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel
|
