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-rw-r--r--hw/xen/xen_pt.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/xen/xen_pt.h b/hw/xen/xen_pt.h
index 191d9caea1..aa39a9aa5f 100644
--- a/hw/xen/xen_pt.h
+++ b/hw/xen/xen_pt.h
@@ -180,6 +180,7 @@ typedef struct XenPTMSI {
     uint32_t addr_hi;  /* guest message upper address */
     uint16_t data;     /* guest message data */
     uint32_t ctrl_offset; /* saved control offset */
+    uint32_t mask;     /* guest mask bits */
     int pirq;          /* guest pirq corresponding */
     bool initialized;  /* when guest MSI is initialized */
     bool mapped;       /* when pirq is mapped */