| Message ID | 20191224151932.6304-1-andrew.cooper3@citrix.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Support CPUID/MSR data in migration streams | expand |
This is the incremental work to "Support CPUID/MSR data in migration streams" which juggles libxl sufficiently to allow us to use the data sent in migration streams. The two patches: tools/libxl: Code-gen improvements for libxl_save_msgs_gen.pl tools/libxl: Reposition build_pre() logic between architectures posted independently are logically patches 13/14 of the series, and these six make it up to 20. Future versions of the series, if necessary, will post them all togther. Andrew Cooper (6): fixup tools/migration: Formatting and style cleanup tools/libxl: Simplify callback handling in libxl-save-helper tools/libx[cl]: Plumb static_data_done() up into libxl tools/libxl: Plumb domain_create_state down into libxl__build_pre() tools/libxl: Re-position CPUID handling during domain construction tools/libxc: Restore CPUID/MSR data found in the migration stream tools/libxc/include/xenguest.h | 44 +++++++++++++++++++++++------------- tools/libxc/xc_sr_common_x86.c | 35 +++++++++++++++++++++++++++-- tools/libxc/xc_sr_restore.c | 1 + tools/libxc/xc_sr_save.c | 8 +++---- tools/libxl/libxl_create.c | 46 +++++++++++++++++++++++++++++++------- tools/libxl/libxl_dm.c | 5 +++-- tools/libxl/libxl_dom.c | 16 ++++++++----- tools/libxl/libxl_internal.h | 11 ++++----- tools/libxl/libxl_save_helper.c | 15 +++++-------- tools/libxl/libxl_save_msgs_gen.pl | 3 ++- 10 files changed, 130 insertions(+), 54 deletions(-)
As an early christmas present, here is the pumbing work to include CPUID/MSR data in migration streams. For bisectability reasons, this is a large amount of plumbing with no overall change in behaviour. Switching to use the CPUID/MSR data in the stream is going to require some careful coordinated changes with libxl, which I haven't quite managed to get working yet. However, this subset of the work is now in a position to review. The first 6 patches are various bits of cleanup. Patches 7-9 introduce Migration v3 and the STATIC_DATA_END record. Patches 10-12 introduce the X86_{CPUID,MSR}_POLICY records. ~Andrew Andrew Cooper (12): libxc/save: Shrink code volume where possible libxc/restore: Introduce functionality to simplify blob handling libxc/migration: Rationalise the 'checkpointed' field to 'stream_type' libxc/migration: Adjust layout of struct xc_sr_context tools/migration: Drop IHDR_VERSION constant from libxc and python docs/migration Specify migration v3 and STATIC_DATA_END python/migration: Update validation logic to understand a v3 stream libxc/restore: Support v3 streams, and cope with v2 compatibilty libxc/save: Write a v3 stream docs/migration: Specify X86_{CPUID,MSR}_POLICY records libxc/restore: Handle X86_{CPUID,MSR}_DATA records libxc/save: Write X86_{CPUID,MSR}_DATA records docs/specs/libxc-migration-stream.pandoc | 81 +++++++- tools/libxc/include/xenguest.h | 15 +- tools/libxc/xc_nomigrate.c | 4 +- tools/libxc/xc_sr_common.c | 3 + tools/libxc/xc_sr_common.h | 205 ++++++++++++------- tools/libxc/xc_sr_common_x86.c | 97 +++++++++ tools/libxc/xc_sr_common_x86.h | 25 +++ tools/libxc/xc_sr_common_x86_pv.c | 50 ++--- tools/libxc/xc_sr_common_x86_pv.h | 4 +- tools/libxc/xc_sr_restore.c | 82 ++++++-- tools/libxc/xc_sr_restore_x86_hvm.c | 35 ++-- tools/libxc/xc_sr_restore_x86_pv.c | 316 +++++++++++++++-------------- tools/libxc/xc_sr_save.c | 65 +++--- tools/libxc/xc_sr_save_x86_hvm.c | 31 +-- tools/libxc/xc_sr_save_x86_pv.c | 225 +++++++++----------- tools/libxc/xc_sr_stream_format.h | 4 +- tools/libxl/libxl_save_helper.c | 4 +- tools/python/scripts/convert-legacy-stream | 13 +- tools/python/scripts/verify-stream-v2 | 2 +- tools/python/xen/migration/libxc.py | 74 ++++++- 20 files changed, 854 insertions(+), 481 deletions(-)