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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@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-02-21 10:55:44 +01:00
parent c9a7953f09
commit c845f9c646
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/vmx.c
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@ -2871,7 +2871,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
!(_vmexit_control & VM_EXIT_ACK_INTR_ON_EXIT)) !(_vmexit_control & VM_EXIT_ACK_INTR_ON_EXIT))
_pin_based_exec_control &= ~PIN_BASED_POSTED_INTR; _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; opt = VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_BNDCFGS;
if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_ENTRY_CTLS, if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_ENTRY_CTLS,
&_vmentry_control) < 0) &_vmentry_control) < 0)