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Please point out backports you find missing from the respective staging branches, but which you consider relevant. Please note that 4.13.4 is going to be the last Xen Project coordinated release from the 4.13 branch; the branch will go into security-only maintenance mode after this release. Ian: I did take the liberty to backport Anthony's 5d3e4ebb5c71 libs/foreignmemory: Fix osdep_xenforeignmemory_map prototype Beyond this I'd like the following to be considered: 6409210a5f51 libxencall: osdep_hypercall() should return long bef64f2c0019 libxencall: introduce variant of xencall2() returning long 01a2d001dea2 libxencall: Bump SONAME following new functionality 6f02d1ea4a10 libxc: use multicall for memory-op on Linux (and Solaris) If those are to be taken (which means in particular if the question of the .so versioning can be properly sorted), 198a2bc6f149 x86/HVM: wire up multicalls is going to be required as a prereq. I have backports of all of the above ready (so I could put them in if you tell me to), but for 01a2d001dea2 only in its straightforward but simplistic form, which I'm not sure is the right thing to do. Jan