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path: root/drivers/s390/cio/vfio_ccw_cp.h
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Diffstat (limited to 'drivers/s390/cio/vfio_ccw_cp.h')
-rw-r--r--drivers/s390/cio/vfio_ccw_cp.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_cp.h b/drivers/s390/cio/vfio_ccw_cp.h
index 3c20cd208da5..7cdc38049033 100644
--- a/drivers/s390/cio/vfio_ccw_cp.h
+++ b/drivers/s390/cio/vfio_ccw_cp.h
@@ -16,6 +16,12 @@
#include "orb.h"
+/*
+ * Max length for ccw chain.
+ * XXX: Limit to 256, need to check more?
+ */
+#define CCWCHAIN_LEN_MAX 256
+
/**
* struct channel_program - manage information for channel program
* @ccwchain_list: list head of ccwchains
@@ -32,6 +38,7 @@ struct channel_program {
union orb orb;
struct device *mdev;
bool initialized;
+ struct ccw1 *guest_cp;
};
extern int cp_init(struct channel_program *cp, struct device *mdev,