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    Subject[060/197] KVM: VMX: Disable unrestricted guest when EPT disabled
    2.6.32-stable review patch.  If anyone has any objections, please let us know.

    ------------------


    From: Sheng Yang <sheng@linux.intel.com>

    commit 046d87103addc117f0d397196e85189722d4d7de upstream

    Otherwise would cause VMEntry failure when using ept=0 on unrestricted guest
    supported processors.

    Signed-off-by: Sheng Yang <sheng@linux.intel.com>
    Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
    Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
    ---
    arch/x86/kvm/vmx.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    --- a/arch/x86/kvm/vmx.c
    +++ b/arch/x86/kvm/vmx.c
    @@ -2302,8 +2302,10 @@ static int vmx_vcpu_setup(struct vcpu_vm
    ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
    if (vmx->vpid == 0)
    exec_control &= ~SECONDARY_EXEC_ENABLE_VPID;
    - if (!enable_ept)
    + if (!enable_ept) {
    exec_control &= ~SECONDARY_EXEC_ENABLE_EPT;
    + enable_unrestricted_guest = 0;
    + }
    if (!enable_unrestricted_guest)
    exec_control &= ~SECONDARY_EXEC_UNRESTRICTED_GUEST;
    vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);



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