linux-kernel - [PATCH v3 9/9] vfio: Add AMBA driver

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Date:   Tue, 20 Jun 2017 09:48:46 -0600
From:   Alex Williamson <alex.williamson@...hat.com>
To:     kvm@...r.kernel.org
Cc:     eric.auger@...hat.com, alex.williamson@...hat.com,
        linux-kernel@...r.kernel.org, linux@...linux.org.uk
Subject: [PATCH v3 9/9] vfio: Add AMBA driver_override support

AMBA also supports driver_override, but amba_bustype was not exported
to be able to identify an amba device.

Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
---
 drivers/vfio/vfio.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 20e57fecf652..36f0fcfded0b 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -36,6 +36,7 @@
 #include <linux/uuid.h>
 #include <linux/vfio.h>
 #include <linux/wait.h>
+#include <linux/amba/bus.h>
 
 #define DRIVER_VERSION	"0.3"
 #define DRIVER_AUTHOR	"Alex Williamson <alex.williamson@...hat.com>"
@@ -743,6 +744,11 @@ static char **vfio_find_driver_override(struct device *dev)
 	} else if (dev->bus == &platform_bus_type) {
 		struct platform_device *pdev = to_platform_device(dev);
 		return &pdev->driver_override;
+#ifdef CONFIG_ARM_AMBA
+	} else if (dev->bus == &amba_bustype) {
+		struct amba_device *adev = to_amba_device(dev);
+		return &adev->driver_override;
+#endif
 	}
 
 	return NULL;