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Message-Id: <1393429753-20857-2-git-send-email-pbonzini@redhat.com>
Date: Wed, 26 Feb 2014 16:49:10 +0100
From: Paolo Bonzini <pbonzini@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: kvm@...r.kernel.org, alex.williamson@...hat.com,
mtosatti@...hat.com, gleb@...nel.org, jan.kiszka@...mens.com
Subject: [PATCH 1/4] KVM: vmx: we do rely on loading DR7 on entry
Currently, this works even if the bit is not in "min", because the bit is always
set in MSR_IA32_VMX_ENTRY_CTLS. Mention it for the sake of documentation, and
to avoid surprises if we later switch to MSR_IA32_VMX_TRUE_ENTRY_CTLS.
Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
arch/x86/kvm/vmx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index daca80f0eae2..6e57e1434cf3 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2872,7 +2872,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
!(_vmexit_control & VM_EXIT_ACK_INTR_ON_EXIT))
_pin_based_exec_control &= ~PIN_BASED_POSTED_INTR;
- min = 0;
+ min = VM_ENTRY_LOAD_DEBUG_CONTROLS;
opt = VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_BNDCFGS;
if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_ENTRY_CTLS,
&_vmentry_control) < 0)
--
1.8.3.1
--
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