Xen was updated to 4.3.1 and also to fix various security issues and bugs:

- bnc#851749 - Xen service file does not call xend properly
xend.service

- Add missing requires to pciutils package for xend-tools

- bnc#851386 - xen: XSA-78: Insufficient TLB flushing in VT-d (iommu) code

- Make -devel package depend on libuuid-devel, since libxl.h
includes uuid.h

- bnc#849667 - CVE-2013-4553: xen: XSA-74: Lock order reversal between
page_alloc_lock and mm_rwlock

- bnc#849665 - CVE-2013-4551: xen: XSA-75: Host crash due to guest VMX instruction execution

- bnc#849668 - CVE-2013-4554: xen: XSA-76: Hypercalls exposed to privilege
rings 1 and 2 of HVM guests

- bnc#848657 - xen: CVE-2013-4494: XSA-73: Lock order
reversal between page allocation and grant table locks

- Update to Xen 4.3.1

- bnc#845520 - CVE-2013-4416: xen: ocaml xenstored
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