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Diffstat (limited to 'drivers/kvm/vmx.c')
-rw-r--r--drivers/kvm/vmx.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index 027a9625ef90..578dff5424e3 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -864,7 +864,14 @@ static void vmx_set_segment(struct kvm_vcpu *vcpu,
vmcs_writel(sf->base, var->base);
vmcs_write32(sf->limit, var->limit);
vmcs_write16(sf->selector, var->selector);
- if (var->unusable)
+ if (vcpu->rmode.active && var->s) {
+ /*
+ * Hack real-mode segments into vm86 compatibility.
+ */
+ if (var->base == 0xffff0000 && var->selector == 0xf000)
+ vmcs_writel(sf->base, 0xf0000);
+ ar = 0xf3;
+ } else if (var->unusable)
ar = 1 << 16;
else {
ar = var->type & 15;