linux-kernel - [PATCH 0/2] KVM: x86: Cleanup kvm_get

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Message-ID: <20240209220752.388160-1-seanjc@google.com>
Date: Fri,  9 Feb 2024 14:07:50 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Mathias Krause <minipli@...ecurity.net>
Subject: [PATCH 0/2] KVM: x86: Cleanup kvm_get_dr() usage

Make kvm_get_dr() use an actual return instead of a void return with an
output, which led to a _lot_ of ugly code, and then open code all direct
reads to DR6 and DR7, as KVM has a goofy mix of some flows open coding
reads and some flows bouncing through kvm_get_dr().

Sean Christopherson (2):
  KVM: x86: Make kvm_get_dr() return a value, not use an out parameter
  KVM: x86: Open code all direct reads to guest DR6 and DR7

 arch/x86/include/asm/kvm_host.h |  2 +-
 arch/x86/kvm/emulate.c          | 17 ++++-------------
 arch/x86/kvm/kvm_emulate.h      |  2 +-
 arch/x86/kvm/smm.c              | 15 ++++-----------
 arch/x86/kvm/svm/svm.c          |  7 ++-----
 arch/x86/kvm/vmx/nested.c       |  2 +-
 arch/x86/kvm/vmx/vmx.c          |  5 +----
 arch/x86/kvm/x86.c              | 20 +++++++-------------
 8 files changed, 21 insertions(+), 49 deletions(-)


base-commit: 873eef46b33c86be414d60bd00390e64fc0f006f
-- 
2.43.0.687.g38aa6559b0-goog