[Libvir] Dom0 hypercall ABI changes in xen-unstable ?

This changeset concerns me in today's xen-unstable http://xenbits2.xensource.com/xen-unstable.hg?rev/30af6cfdb05c "Make domctl/sysctl interfaces 32-/64-bit invariant. This kills off a fair amount of unpleasant CONFIG_COMPAT shimming and avoids needing to keep the compat paths in sync as these interfaces continue to develop." For example @@ -81,9 +81,9 @@ struct xen_sysctl_physinfo { uint32_t sockets_per_node; uint32_t nr_nodes; uint32_t cpu_khz; - uint64_t total_pages; - uint64_t free_pages; - uint64_t scrub_pages; + uint64_aligned_t total_pages; + uint64_aligned_t free_pages; + uint64_aligned_t scrub_pages; uint32_t hw_cap[8]; Suggests to me that alignment of thse fields may now have changed on 32-bit hosts. Well, at least it would if it were not for public/xen.h doing: #define uint64_aligned_t uint64_t So has it changed or not ? The interface version was incremented at least... -#define XEN_DOMCTL_INTERFACE_VERSION 0x00000004 +#define XEN_DOMCTL_INTERFACE_VERSION 0x00000005 -#define XEN_SYSCTL_INTERFACE_VERSION 0x00000002 +#define XEN_SYSCTL_INTERFACE_VERSION 0x00000003 I'm expecting the worst in terms of ABI compat, but I'm really not at all certain yet. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|