Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Reply-To: Sean Christopherson <seanjc@google.com>
Date:   Tue, 14 Jun 2022 20:47:16 +0000
In-Reply-To: <20220614204730.3359543-1-seanjc@google.com>
Message-Id: <20220614204730.3359543-8-seanjc@google.com>
Mime-Version: 1.0
References: <20220614204730.3359543-1-seanjc@google.com>
Subject: [PATCH v2 07/21] KVM: x86: Use DR7_GD macro instead of open coding
 check in emulator
From:   Sean Christopherson <seanjc@google.com>
To:     Paolo Bonzini <pbonzini@redhat.com>
Cc:     Sean Christopherson <seanjc@google.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Jim Mattson <jmattson@google.com>,
        Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org, Oliver Upton <oupton@google.com>,
        Peter Shier <pshier@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

Use DR7_GD in the emulator instead of open coding the check, and drop a
comically wrong comment.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 arch/x86/kvm/emulate.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 39ea9138224c..bf499716d9d3 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -4182,8 +4182,7 @@ static int check_dr7_gd(struct x86_emulate_ctxt *ctxt)
 
 	ctxt->ops->get_dr(ctxt, 7, &dr7);
 
-	/* Check if DR7.Global_Enable is set */
-	return dr7 & (1 << 13);
+	return dr7 & DR7_GD;
 }
 
 static int check_dr_read(struct x86_emulate_ctxt *ctxt)
-- 
2.36.1.476.g0c4daa206d-goog