aboutsummaryrefslogtreecommitdiff
path: root/include/hw/i386/intel_iommu.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/hw/i386/intel_iommu.h')
-rw-r--r--include/hw/i386/intel_iommu.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 032e33bcb2..016e74bedb 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -300,6 +300,12 @@ struct IntelIOMMUState {
OnOffAuto intr_eim; /* Toggle for EIM cabability */
bool buggy_eim; /* Force buggy EIM unless eim=off */
uint8_t aw_bits; /* Host/IOVA address width (in bits) */
+
+ /*
+ * Protects IOMMU states in general. Currently it protects the
+ * per-IOMMU IOTLB cache, and context entry cache in VTDAddressSpace.
+ */
+ QemuMutex iommu_lock;
};
/* Find the VTD Address space associated with the given bus pointer,