From: Ian Campbell <ian.campbell@citrix.com>
To: stefano.stabellini@eu.citrix.com, qemu-devel@nongnu.org
Cc: xen-devel <xen-devel@lists.xen.org>
Subject: [Qemu-devel] [PATCH 0/5] Drop support for Xen 4.1 and older from qemu-xen
Date: Tue, 9 Feb 2016 16:16:55 +0000 [thread overview]
Message-ID: <1455034615.19857.96.camel@citrix.com> (raw)
This is most easily explained by the commit log of the first patch:
Xen 4.2 become unsupported upstream in 09/2105 (see
http://wiki.xen.org/wiki/Xen_Release_Features). However as far as the
interfaces provided by the toolstack libraries go 4.2 and 4.3 are
indistinguishable.
Therefore drop support for Xen 4.1 and earlier which removes a whole
pile of compatibility code which makes future work (to use stable
library interfaces provided by upstream) more difficult. In particular
all supported versions now use a pointer as a libxc handle (4.1 and
earlier used an integer, resulting in various shim layers).
Also Xen 4.2 was the first version of Xen to formally support upstream
QEMU (as a preview) so that makes sense as a cut-off now.
The rest of the patches are just further cleanups which become possible.
next reply other threads:[~2016-02-09 16:17 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-09 16:16 Ian Campbell [this message]
2016-02-09 16:17 ` [Qemu-devel] [PATCH 1/5] xen: drop support for Xen 4.1 and older Ian Campbell
2016-02-09 16:17 ` Ian Campbell
2016-02-09 16:27 ` [Qemu-devel] " Peter Maydell
2016-02-09 16:27 ` Peter Maydell
2016-02-09 16:50 ` Stefano Stabellini
2016-02-09 16:50 ` Stefano Stabellini
2016-02-10 10:30 ` Ian Campbell
2016-02-10 10:30 ` [Qemu-devel] " Ian Campbell
2016-02-10 10:45 ` Stefano Stabellini
2016-02-10 10:45 ` Stefano Stabellini
2016-02-09 16:17 ` [Qemu-devel] [PATCH 2/5] xen: drop xen_xc_hvm_inject_msi wrapper Ian Campbell
2016-02-09 16:17 ` Ian Campbell
2016-02-09 16:54 ` [Qemu-devel] " Stefano Stabellini
2016-02-09 16:54 ` Stefano Stabellini
2016-02-09 16:17 ` [Qemu-devel] [PATCH 3/5] xen: drop XenXC and associated interface wrappers Ian Campbell
2016-02-09 16:17 ` Ian Campbell
2016-02-09 17:18 ` [Qemu-devel] " Stefano Stabellini
2016-02-09 17:18 ` Stefano Stabellini
2016-02-09 16:17 ` [Qemu-devel] [PATCH 4/5] xen: move xenforeignmemory compat layer into common place Ian Campbell
2016-02-09 16:17 ` Ian Campbell
2016-02-09 17:18 ` [Qemu-devel] " Stefano Stabellini
2016-02-09 17:18 ` Stefano Stabellini
2016-02-09 16:17 ` [Qemu-devel] [PATCH 5/5] xen: Drop __XEN_LATEST_INTERFACE_VERSION__ checks from prior to Xen 4.2 Ian Campbell
2016-02-09 17:23 ` Stefano Stabellini
2016-02-09 17:23 ` Stefano Stabellini
2016-02-09 16:17 ` Ian Campbell
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