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From: Luwei Kang <luwei.kang@intel.com>
To: pbonzini@redhat.com, rkrcmar@redhat.com
Cc: sean.j.christopherson@intel.com, vkuznets@redhat.com,
	wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org,
	tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	hpa@zytor.com, x86@kernel.org, ak@linux.intel.com,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Luwei Kang <luwei.kang@intel.com>
Subject: [RFC v1 0/9] PEBS enabling in KVM guest
Date: Thu, 29 Aug 2019 13:34:00 +0800	[thread overview]
Message-ID: <1567056849-14608-1-git-send-email-luwei.kang@intel.com> (raw)

Intel new hardware introduces some Precise Event-Based Sampling (PEBS)
extensions that output the PEBS record to Intel PT stream instead of
DS area. The PEBS record will be packaged in a specific format when
outputing to Intel PT.

This patch set will enable PEBS functionality in KVM Guest by PEBS
output to Intel PT. The native driver as [1] (still under review).

[1] https://www.spinics.net/lists/kernel/msg3215354.html

Luwei Kang (9):
  KVM: x86: Add base address parameter for get_fixed_pmc function
  KVM: x86: PEBS via Intel PT HW feature detection
  KVM: x86: Implement MSR_IA32_PEBS_ENABLE read/write emulation
  KVM: x86: Implement counter reload MSRs read/write emulation
  KVM: x86: Allocate performance counter for PEBS event
  KVM: x86: Add shadow value of PEBS status
  KVM: X86: Expose PDCM cpuid to guest
  KVM: X86: MSR_IA32_PERF_CAPABILITIES MSR emulation
  KVM: x86: Expose PEBS feature to guest

 arch/x86/include/asm/kvm_host.h  |  8 ++++
 arch/x86/include/asm/msr-index.h | 12 ++++++
 arch/x86/kvm/cpuid.c             |  3 +-
 arch/x86/kvm/pmu.c               | 57 ++++++++++++++++++++++----
 arch/x86/kvm/pmu.h               | 11 ++---
 arch/x86/kvm/pmu_amd.c           |  2 +-
 arch/x86/kvm/svm.c               | 12 ++++++
 arch/x86/kvm/vmx/capabilities.h  | 21 ++++++++++
 arch/x86/kvm/vmx/pmu_intel.c     | 88 +++++++++++++++++++++++++++++++++++-----
 arch/x86/kvm/vmx/vmx.c           | 24 ++++++++++-
 arch/x86/kvm/x86.c               | 22 +++++++---
 11 files changed, 229 insertions(+), 31 deletions(-)

-- 
1.8.3.1


             reply	other threads:[~2019-08-29  5:38 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-29  5:34 Luwei Kang [this message]
2019-08-29  5:34 ` [RFC v1 1/9] KVM: x86: Add base address parameter for get_fixed_pmc function Luwei Kang
2019-08-29 19:01   ` Jim Mattson
2019-08-30  0:01     ` Kang, Luwei
2019-08-29 21:10   ` Andi Kleen
2019-08-30  0:15     ` Kang, Luwei
2019-08-29  5:34 ` [RFC v1 2/9] KVM: x86: PEBS via Intel PT HW feature detection Luwei Kang
2019-08-29  5:34 ` [RFC v1 3/9] KVM: x86: Implement MSR_IA32_PEBS_ENABLE read/write emulation Luwei Kang
2019-08-29 21:20   ` Andi Kleen
2019-08-30  0:22     ` Kang, Luwei
2019-08-29  5:34 ` [RFC v1 4/9] KVM: x86: Implement counter reload MSRs " Luwei Kang
2019-08-29  5:34 ` [RFC v1 5/9] KVM: x86: Allocate performance counter for PEBS event Luwei Kang
2019-08-29  5:34 ` [RFC v1 6/9] KVM: x86: Add shadow value of PEBS status Luwei Kang
2019-08-29  5:34 ` [RFC v1 7/9] KVM: X86: Expose PDCM cpuid to guest Luwei Kang
2019-08-29  5:34 ` [RFC v1 8/9] KVM: X86: MSR_IA32_PERF_CAPABILITIES MSR emulation Luwei Kang
2019-08-29  5:34 ` [RFC v1 9/9] KVM: x86: Expose PEBS feature to guest Luwei Kang
2019-08-29  7:28 ` [RFC v1 0/9] PEBS enabling in KVM guest Peter Zijlstra
2019-08-29  8:11   ` Kang, Luwei

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