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    • E
      shutdown: Prepare for use of an enum in reset/shutdown_request · aedbe192
      Eric Blake 提交于
      We want to track why a guest was shutdown; in particular, being able
      to tell the difference between a guest request (such as ACPI request)
      and host request (such as SIGINT) will prove useful to libvirt.
      Since all requests eventually end up changing shutdown_requested in
      vl.c, the logical change is to make that value track the reason,
      rather than its current 0/1 contents.
      
      Since command-line options control whether a reset request is turned
      into a shutdown request instead, the same treatment is given to
      reset_requested.
      
      This patch adds an internal enum ShutdownCause that describes reasons
      that a shutdown can be requested, and changes qemu_system_reset() to
      pass the reason through, although for now nothing is actually changed
      with regards to what gets reported.  The enum could be exported via
      QAPI at a later date, if deemed necessary, but for now, there has not
      been a request to expose that much detail to end clients.
      
      For the most part, we turn 0 into SHUTDOWN_CAUSE_NONE, and 1 into
      SHUTDOWN_CAUSE_HOST_ERROR; the only specific case where we have enough
      information right now to use a different value is when we are reacting
      to a host signal.  It will take a further patch to edit all call-sites
      that can trigger a reset or shutdown request to properly pass in any
      other reasons; this patch includes TODOs to point such places out.
      
      qemu_system_reset() trades its 'bool report' parameter for a
      'ShutdownCause reason', with all non-zero values having the same
      effect; this lets us get rid of the weird #defines for VMRESET_*
      as synonyms for bools.
      Signed-off-by: NEric Blake <eblake@redhat.com>
      Message-Id: <20170515214114.15442-3-eblake@redhat.com>
      Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
      Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
      aedbe192
  14. 19 5月, 2017 5 次提交
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  16. 01 3月, 2017 2 次提交
  17. 14 2月, 2017 3 次提交
  18. 01 11月, 2016 1 次提交
  19. 30 10月, 2016 7 次提交
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