[Xen-devel] [PATCH 0/2] x86/svm: add pause filtering threshold for SVM

[Brian Woods <brian.woods@xxxxxxx>]

This patch series adds support and enablement of the pause filtering
threshold.  Once there's pause filtering threshold amount of cycles
between pauses, the pause filtering counter resets to what was in the
VMCB.  This allows the pause filtering count to "reset" between pauses
and keeps the guset from getting intercepted by the hypervisor.  See AMD
APM vol 2 section 15.14.4 for more details.

In reply to this will be an email with graphs showing some benchmark
results of why the values of the counter and threshold were picked.

Brian Woods (2):
  x86/svm: add support for pause filtering threshold
  x86/svm: enable pause filtering threshold

 xen/arch/x86/hvm/svm/svm.c         | 1 +
 xen/arch/x86/hvm/svm/vmcb.c        | 3 +++
 xen/include/asm-x86/hvm/svm/svm.h  | 5 ++++-
 xen/include/asm-x86/hvm/svm/vmcb.h | 3 ++-
 4 files changed, 10 insertions(+), 2 deletions(-)

-- 
2.11.0


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