Function vfio_device_api_string() returns string based on flag set in
vfio_device_info's flag. This should be used by vendor driver to get string
based on flag for device_api attribute.
Signed-off-by: Kirti Wankhede <kwankhede@xxxxxxxxxx>
Signed-off-by: Neo Jia <cjia@xxxxxxxxxx>
Change-Id: I42d29f475f02a7132ce13297fbf2b48f1da10995
---
drivers/vfio/vfio.c | 15 +++++++++++++++
include/linux/vfio.h | 2 ++
2 files changed, 17 insertions(+)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 10ef1c5fa762..aec470454a13 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1917,6 +1917,21 @@ int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr, int num_irqs,
}
EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
+const char *vfio_device_api_string(u32 flags)
+{
+ if (flags & VFIO_DEVICE_FLAGS_PCI)
+ return "vfio-pci";
+
+ if (flags & VFIO_DEVICE_FLAGS_PLATFORM)
+ return "vfio-platform";
+
+ if (flags & VFIO_DEVICE_FLAGS_AMBA)
+ return "vfio-amba";
+
+ return "";
+}
+EXPORT_SYMBOL(vfio_device_api_string);
+
/*
* Pin a set of guest PFNs and return their associated host PFNs for local
* domain only.
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 31d059f1649b..fca2bf23c4f1 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -116,6 +116,8 @@ extern int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr,
int num_irqs, int max_irq_type,
size_t *data_size);
+extern const char *vfio_device_api_string(u32 flags);
+
struct pci_dev;
#ifdef CONFIG_EEH
extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev);
--
2.7.0
--
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