[PATCH 07/11] KVM: VMX: Force vm86 mode if setting flags during real mode

From: Avi Kivity
Date: Sun Oct 21 2007 - 07:10:40 EST


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@xxxxxxxxxxxx>
---
drivers/kvm/vmx.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index f130c01..bb56ae3 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -523,6 +523,8 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)

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);
}

--
1.5.3

-
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