[PATCH 09/10] KVM: VMX: Force vm86 mode if setting flags during real mode

From: Avi Kivity
Date: Sun Dec 02 2007 - 06:20:21 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 80628f6..c158a2d 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -463,6 +463,8 @@ 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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