[PATCH] Add log to Xenfilt DriverAddDevice

[Martin Harvey <Martin.Harvey@xxxxxxxxxx>]

From: Owen Smith <owen.smith@xxxxxxxxxx>

Log all calls to DriverAddDevice, and the type of the device if possible

Signed-off-by: Owen Smith <owen.smith@xxxxxxxxxx>
---
 src/xenfilt/driver.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/xenfilt/driver.c b/src/xenfilt/driver.c
index 8f14ec8..2c9b54e 100644
--- a/src/xenfilt/driver.c
+++ b/src/xenfilt/driver.c
@@ -724,6 +724,19 @@ fail1:
     return status;
 }
 
+static FORCEINLINE PCHAR
+__EmulatedTypeName(
+    IN  XENFILT_EMULATED_OBJECT_TYPE    Type
+    )
+{
+    switch (Type) {
+    case XENFILT_EMULATED_OBJECT_TYPE_UNKNOWN:  return "UNKNOWN";
+    case XENFILT_EMULATED_OBJECT_TYPE_PCI:      return "PCI";
+    case XENFILT_EMULATED_OBJECT_TYPE_IDE:      return "IDE";
+    default:                                    return "InvalidType";
+    }
+}
+
 static XENFILT_EMULATED_OBJECT_TYPE
 DriverGetEmulatedType(
     IN  PCHAR                       Id
@@ -805,6 +818,10 @@ DriverAddDevice(
         }
     }
 
+    Info("%p %s\n",
+         PhysicalDeviceObject,
+         __EmulatedTypeName(Type));
+
     status = STATUS_SUCCESS;
     if (Type == XENFILT_EMULATED_OBJECT_TYPE_UNKNOWN)
         goto done;
-- 
2.28.0.windows.1