[Xen-devel] [PATCH v2 0/9] libxl: New slow lock + fix libxl_cdrom_insert with QEMU depriv

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Hi,

Changes in v2:
- New libxl__ev_lock, which actually respect lock hierarchy (it's outside of
  CTX_LOCK).
- some smaller changes detailed in patch notes.

This patch series fix libxl_cdrom_insert to work with a depriviledge QEMU. For
that, we need to use libxl__ev_qmp.  For that, we need a new lock because
userdata_lock can't be used anymore.

FYI: I don't think that enough yet to migrate a depriviledged QEMU. We may need
to open disks/cdrom in libxl before starting QEMU, similar to what this patch
series do when inserting a new cdrom.

Patch series available in this git branch:
https://xenbits.xen.org/git-http/people/aperard/xen-unstable.git 
br.libxl-slow-lock-v2

Anthony PERARD (9):
  libxl_internal: Remove lost comment
  libxl: Pointer on usage of libxl__domain_userdata_lock
  libxl_internal: Introduce libxl__ev_lock for devices hotplug via QMP
  libxl: Add optimisation to ev_lock
  libxl_disk: Reorganise libxl_cdrom_insert
  libxl_disk: Cut libxl_cdrom_insert into steps ..
  libxl_disk: Implement missing timeout for libxl_cdrom_insert
  libxl: Move qmp_parameters_* prototypes to libxl_internal.h
  libxl_disk: Use ev_qmp in libxl_cdrom_insert

 tools/libxl/Makefile         |   3 +
 tools/libxl/libxl_disk.c     | 341 ++++++++++++++++++++++++++++-------
 tools/libxl/libxl_internal.c | 193 ++++++++++++++++++++
 tools/libxl/libxl_internal.h | 105 +++++++++--
 tools/libxl/libxl_qmp.c      |  89 ++++-----
 5 files changed, 601 insertions(+), 130 deletions(-)

-- 
Anthony PERARD


Patch series available in this git branch:
https://xenbits.xen.org/git-http/people/aperard/xen-unstable.git 
br.libxl-slow-lock-v2

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