linux-kernel - [PATCH 0/3] KVM: x86: cleanup and fixes for debug register accesses

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Date:   Mon,  4 May 2020 11:55:55 -0400
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     Sean Christopherson <sean.j.christopherson@...el.com>
Subject: [PATCH 0/3] KVM: x86: cleanup and fixes for debug register accesses

The purpose of this series is to get rid of the get_dr6 accessor
and, on Intel, of set_dr6 as well.  This is done mostly in patch 2,
since patch 3 is only the resulting cleanup.  Patch 1 is a related
bug fix that I found while inspecting the code.

A guest debugging selftest is sorely needed if anyone wants to take
a look!

Paolo

Paolo Bonzini (3):
  KVM: SVM: fill in kvm_run->debug.arch.dr[67]
  KVM: SVM: keep DR6 synchronized with vcpu->arch.dr6
  KVM: x86: simplify dr6 accessors in kvm_x86_ops

 arch/x86/include/asm/kvm_host.h |  1 -
 arch/x86/kvm/svm/svm.c          | 11 ++++-------
 arch/x86/kvm/vmx/vmx.c          | 11 -----------
 arch/x86/kvm/x86.c              |  8 +++-----
 4 files changed, 7 insertions(+), 24 deletions(-)

-- 
2.18.2