[patch 25/60] KVM: VMX: Force vm86 mode if setting flags during real mode

[Greg KH <gregkh@suse.de>]

2.6.23-stable review patch.  If anyone has any objections, please let us
know.

------------------
From: Avi Kivity <avi@qumranet.com>

patch 78f7826868da8e27d097802139a3fec39f47f3b8 in mainline.

When resetting from userspace, we need to handle the flags being cleared
even after we are in real mode.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/kvm/vmx.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -463,6 +463,8 @@ static unsigned long vmx_get_rflags(stru
 
 static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
 {
+	if (vcpu->rmode.active)
+		rflags |= IOPL_MASK | X86_EFLAGS_VM;
 	vmcs_writel(GUEST_RFLAGS, rflags);
 }
 

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