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Re: [Xen-devel] [PATCH v5] libxl: add option for discard support to xl disk configuration

Il 13/05/2014 19:23, Stefano Stabellini ha scritto:
On Tue, 13 May 2014, Stefano Stabellini wrote:
On Tue, 13 May 2014, Fabio Fantoni wrote:
Il 12/05/2014 17:44, Stefano Stabellini ha scritto:
On Mon, 12 May 2014, Olaf Hering wrote:
On Mon, May 12, Ian Jackson wrote:

Olaf Hering writes ("Re: [PATCH v5] libxl: add option for discard
support to xl disk configuration"):
please backport these changes from qemu.git to qemu-xen.git so that
58da5b1e01a586eb5a52ba3eec342d6828269839 xen_disk: fix io accounting
f31352041bdde436c3f6d07e1525a42e48dec215 xen_disk: add discard support
Do you mean you want these patches backported from our qemu upstream
to the old ("traditional") xen qemu fork ?
I mean this copy, sorry if the wording was misleading:

Looks like its state is currently at "1.6.2 + something".
Right. I didn't reply but I agree.
I think that we should upgrade qemu-upstream-unstable to QEMU v2.0, plus
this series:


but I haven't had the time to do it yet.
If nobody does it before, I'll prepare andtest and the qemu 2.0.0 + xen missed
patches as soon as I have time and I'll post iton github where you can easily
do a pull.
Or anything else "special" are needed?
No, that would be all.
Make sure to only have these commits on top of v2.0.0:

f31352041bdde436c3f6d07e1525a42e48dec215 xen_disk: add discard support
8b6bb0ad17ab776239ba2bfc99ff107ada01c506 pass an inclusive address range to 
04b0de0ee83fe464487406064afe14de27decc24 xen: factor out common functions
ad3f7e31bfc148135d93c176d1c9197933fa8344 xen: move Xen HVM files under 
d5fdb85e3d2c319603f87f3205689ed5659f621d xen: move Xen PV machine files to 
c976437c7dba9c7444fb41df45468968aaa326ad qemu-xen: free all the pirqs for 
msi/msix when driver unload
fe680d0dac85e0f2d6c3b53838c250f6e0b1f49b exec: Limit translation limiting in 
address_space_translate to xen

And please test the updated QEMU with PV (qdisk) and HVM guests.
If everything works as expected, I can just pull your tree.
I had few minutes and I prepared a branch:

git://xenbits.xen.org/people/sstabellini/qemu-dm.git qemu-xen-for-4.5

however your help testing QEMU with HVM and PV guests would still be
very much appreciated and save me a lot of time!

I did some fast tests with pv and hvm domUs (both with qdisk's disks) and I not found regression for now.

Note: for not add regression in some cases before (or when) push the use of qemu 2.0 in xen-unstable there must also be this serie: [PATCH 0/2] tools: update to SeaBIOS 1.7.4

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