Intel vPMU improvements

[PATCH 0/6] Intel vPMU improvements

Teddy Astie posted 6 patches 4 weeks ago

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Failed in applying to current master (apply log)

xen/arch/x86/cpu-policy.c            | 39 +++++++++++++++++++++++++++-
xen/arch/x86/cpu/vpmu_intel.c        | 24 ++++++++++++++---
xen/arch/x86/domain.c                |  2 +-
xen/arch/x86/pv/emul-priv-op.c       |  8 ++++--
xen/include/xen/lib/x86/cpu-policy.h | 10 ++++++-
5 files changed, 74 insertions(+), 9 deletions(-)

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[PATCH 0/6] Intel vPMU improvements

Posted by Teddy Astie 4 weeks ago

First patch fix a problem that prevents vPMU from properly working with
a PV domain on a processor that doesn't have hyperthreading.

The second patch adds a missing PEBS/DS_AREA MSR handler for PV.

The next patches tries to introduce a proper CPUID handling and restrict
some hardware limits to Xen ones.

Last patch allow vPMU to work with PMU version 6 (Intel Core Ultra and alike).

Teddy Astie (6):
  x86/vpmu: Expose up to 8 Intel event selectors in PV Dom0
  x86/vpmu: Expose PEBS and DS area in PV mode
  x86: Define some Intel vPMU leafs
  x86/vpmu: Sanitise Intel PMU version
  x86/vpmu: Limit to using supported general/fixed counters
  x86/vpmu: Allow PMU version 6

 xen/arch/x86/cpu-policy.c            | 39 +++++++++++++++++++++++++++-
 xen/arch/x86/cpu/vpmu_intel.c        | 24 ++++++++++++++---
 xen/arch/x86/domain.c                |  2 +-
 xen/arch/x86/pv/emul-priv-op.c       |  8 ++++--
 xen/include/xen/lib/x86/cpu-policy.h | 10 ++++++-
 5 files changed, 74 insertions(+), 9 deletions(-)

-- 
2.53.0



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Teddy Astie | Vates XCP-ng Developer

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