[Xen-devel] [PATCH v3 0/3] Support controlling the max C-state sub-state

[Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>]

As discussed previously on the list, here is a patch series to allow
controlling the maximum C-state sub-state. It doesn't fix the output of
xenpm to correctly show the C-states sub-states (that can be for later).

Changes since v2:
- Drop patch that's in staging
- Update ACPI idle function
- Fix handling of cpuid for single processor machines.
- Document overloading of cpuid for sub-state control.
- Formatting changes.

Changes since v1:
- Use a single boot parameter to control max_cstate and max_csubstate.
- Use max_csubstate rather than max_substate global variable,
  it is less generic.
- Reuse sysctl sub-ops rather than adding new ones.
- Limit the sub-state in the ACPI cpu_idle driver.
- Use unsigned rather than signed in places
- Update docs.
- Formatting changes.

Ross Lagerwall (3):
  x86: Allow limiting the max C-state sub-state
  tools/libxc: Alow controlling the max C-state sub-state
  xenpm: Allow controlling the max C-state sub-state

 docs/misc/xen-command-line.markdown |  8 +++++++-
 tools/libxc/xc_pm.c                 | 28 ++++++++++++++++++++++++----
 tools/libxc/xenctrl.h               |  3 +++
 tools/misc/xenpm.c                  | 34 +++++++++++++++++++++++++++++++++-
 xen/arch/x86/acpi/cpu_idle.c        | 21 ++++++++++++++++++---
 xen/arch/x86/cpu/mwait-idle.c       |  4 +++-
 xen/drivers/acpi/pmstat.c           | 20 ++++++++++++++++----
 xen/include/public/sysctl.h         |  5 ++++-
 xen/include/xen/acpi.h              | 29 +++++++++++++++++++++++++----
 9 files changed, 133 insertions(+), 19 deletions(-)

-- 
1.9.3


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