[v1] target/i386: Misc PMU, PEBS, and MSR fixes and improvements

[PATCH 0/7] target/i386: Misc PMU, PEBS, and MSR fixes and improvements

Zide Chen posted 7 patches 3 weeks ago

Diff against v2
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git fetch https://github.com/patchew-project/qemu tags/patchew/20260117011053.80723-1-zide.chen@intel.com

Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Zhao Liu <zhao1.liu@intel.com>, Marcelo Tosatti <mtosatti@redhat.com>

There is a newer version of this series

target/i386/cpu.c     |  15 ++--
target/i386/cpu.h     |  20 +++++-
target/i386/kvm/kvm.c | 162 +++++++++++++++++++++++++++++++++++-------
target/i386/machine.c |  35 +++++++--
4 files changed, 191 insertions(+), 41 deletions(-)

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[PATCH 0/7] target/i386: Misc PMU, PEBS, and MSR fixes and improvements

Posted by Zide Chen 3 weeks ago

This series contains a set of mostly independent fixes and small
improvements in target/i386 related to PMU, PEBS, and MSR handling.

The patches are grouped into a single series for review convenience;
they are not tightly coupled and can be applied individually.

Dapeng Mi (3):
  target/i386: Don't save/restore PERF_GLOBAL_OVF_CTRL MSR
  target/i386: Support full-width writes for perf counters
  target/i386: Save/Restore DS based PEBS specfic MSRs

Zide Chen (4):
  target/i386: Disable unsupported BTS for guest
  target/i386: Gate enable_pmu on kvm_enabled()
  target/i386: Make some PEBS features user-visible
  target/i386: Increase MSR_BUF_SIZE and split KVM_[GET/SET]_MSRS calls

 target/i386/cpu.c     |  15 ++--
 target/i386/cpu.h     |  20 +++++-
 target/i386/kvm/kvm.c | 162 +++++++++++++++++++++++++++++++++++-------
 target/i386/machine.c |  35 +++++++--
 4 files changed, 191 insertions(+), 41 deletions(-)

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2.52.0