linux-kernel - [PATCH RESEND v3 0/3] KVM: x86/pmu: Enable guest PEBS for SPR and later models

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue,  6 Dec 2022 16:29:41 +0800
From:   Like Xu <like.xu.linux@...il.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [PATCH RESEND v3 0/3] KVM: x86/pmu: Enable guest PEBS for SPR and later models

Hi,

Finally, SPR will go live in early 2023. Virtualization support for SPR
PEBS (kvm.x86.vpmu.pebs_ept) has officially available in the Intel SDM
(June 2022), and this patch set is validated on a late stepping machine.

Let's see if this new rebased revision will satisfy everyone's appetite.

Previous:

V3:
https://lore.kernel.org/kvm/20221109082802.27543-1-likexu@tencent.com/
V2:
https://lore.kernel.org/kvm/20220922051929.89484-1-likexu@tencent.com/

V2 -> V3 Changelog:
- Add more commit message about the pdit/pdir stuff; (Sean)
- Refine confusing comments on event precise level and TNT+; (Sean)
- Use pmc_get_pebs_precise_level() instead of need_max_precise(); (Sean)
- Move HYBRID_CPU change in a separate patch; (Sean)
- Land KVM changes before perf core changes; (Sean)
- Aalign code indentation; (Sean) // VScode is quite good for kernel dev.

Like Xu (3):
  KVM: x86/pmu: Disable guest PEBS on hybird cpu due to heterogeneity
  KVM: x86/pmu: Add PRIR++ and PDist support for SPR and later models
  perf/x86/intel: Expose EPT-friendly PEBS for SPR and future models

 arch/x86/events/intel/core.c    |  1 +
 arch/x86/events/intel/ds.c      |  4 ++-
 arch/x86/kvm/pmu.c              | 45 ++++++++++++++++++++++++---------
 arch/x86/kvm/vmx/capabilities.h |  4 ++-
 4 files changed, 40 insertions(+), 14 deletions(-)

-- 
2.38.1