linux-kernel - [PATCH 0/4] KVM: VMX: Add helper+macros to do sec exec adjustment

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:   Wed, 23 Sep 2020 09:50:44 -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
Subject: [PATCH 0/4] KVM: VMX: Add helper+macros to do sec exec adjustment

Add a helper function and macro wrappers to consolidate code for adjusting
secondary execution controls based on guest CPUID.  The adjustments are
effectively 10+ lines of copy+paste for each control, with slight tweaks
to account for annoying differences, e.g. XSAVES has additional checks.

Patches 1-3 are prep work to make INVPCID and RDTSCP align with the
"standard" nomenclature so that they don't require special casing.

Sean Christopherson (4):
  KVM: VMX: Rename vmx_*_supported() helpers to cpu_has_vmx_*()
  KVM: VMX: Unconditionally clear CPUID.INVPCID if !CPUID.PCID
  KVM: VMX: Rename RDTSCP secondary exec control name to insert "ENABLE"
  KVM: VMX: Add a helper and macros to reduce boilerplate for sec exec
    ctls

 arch/x86/include/asm/vmx.h                    |   2 +-
 arch/x86/kvm/vmx/capabilities.h               |  10 +-
 arch/x86/kvm/vmx/nested.c                     |   4 +-
 arch/x86/kvm/vmx/vmx.c                        | 150 +++++++-----------
 .../selftests/kvm/include/x86_64/vmx.h        |   2 +-
 5 files changed, 64 insertions(+), 104 deletions(-)

-- 
2.28.0