linux-kernel - [PATCH v2 0/2] KVM: x86/mmu: Zap orphaned kids for nested TDP MMU

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]

Message-Id: <20200812192758.25587-1-sean.j.christopherson@intel.com>
Date:   Wed, 12 Aug 2020 12:27:56 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Peter Shier <pshier@...gle.com>,
        Ben Gardon <bgardon@...gle.com>
Subject: [PATCH v2 0/2] KVM: x86/mmu: Zap orphaned kids for nested TDP MMU

As promised, albeit a few days late.

Ben, I kept your performance numbers even though it this version has
non-trivial differences relative to what you tested.  I assume we'll need
a v3 anyways if this doesn't provide the advertised performance benefits.

Ben Gardon (1):
  KVM: x86/MMU: Recursively zap nested TDP SPs when zapping last/only
    parent

Sean Christopherson (1):
  KVM: x86/mmu: Move flush logic from mmu_page_zap_pte() to
    FNAME(invlpg)

 arch/x86/kvm/mmu/mmu.c         | 38 ++++++++++++++++++++++------------
 arch/x86/kvm/mmu/paging_tmpl.h |  7 +++++--
 2 files changed, 30 insertions(+), 15 deletions(-)

-- 
2.28.0