linux-kernel - [PATCH v2 0/2] Add wrapper to read GPR of INVPCID, INVVPID, and INVEPT

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Date:   Wed,  3 Nov 2021 18:32:30 +0000
From:   Vipin Sharma <vipinsh@...gle.com>
To:     pbonzini@...hat.com, seanjc@...gle.com, jmattson@...gle.com
Cc:     dmatlack@...gle.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Vipin Sharma <vipinsh@...gle.com>
Subject: [PATCH v2 0/2] Add wrapper to read GPR of INVPCID, INVVPID, and INVEPT

Hello,

VMX code to handle INVPCID, INVVPID, and INVEPT read the same GPR index
in VM exit info. This patch series improves that handling by adding a
common wrapper function for them.

This series also moves INVPCID type check from both SVM and VMX to
common place in kvm_handle_invpcid().

Overall, this series is just reducing duplicate code.

Changes in v2:
- Keeping the register read visible in the functions.
- Removed INVPCID type check hardcoding and moved error condition to common 
  function.

[v1] https://lore.kernel.org/lkml/20211011194615.2955791-1-vipinsh@google.com/

Vipin Sharma (2):
  KVM: VMX: Add a wrapper to read index of GPR for INVPCID, INVVPID, and
    INVEPT
  KVM: Move INVPCID type check from vmx and svm to the common
    kvm_handle_invpcid()

 arch/x86/kvm/svm/svm.c    |  5 -----
 arch/x86/kvm/vmx/nested.c | 10 ++++++----
 arch/x86/kvm/vmx/vmx.c    |  9 +++------
 arch/x86/kvm/vmx/vmx.h    |  5 +++++
 arch/x86/kvm/x86.c        |  3 ++-
 5 files changed, 16 insertions(+), 16 deletions(-)

-- 
2.33.1.1089.g2158813163f-goog