On Sun, 2013-07-07 at 01:07 +1000, Alexey Kardashevskiy wrote:
VFIO is designed to be used via ioctls on file descriptors
returned by VFIO.
However in some situations support for an external user is required.
The first user is KVM on PPC64 (SPAPR TCE protocol) which is going to
use the
On 07/09/2013 07:52 AM, Alex Williamson wrote:
On Sun, 2013-07-07 at 01:07 +1000, Alexey Kardashevskiy wrote:
VFIO is designed to be used via ioctls on file descriptors
returned by VFIO.
However in some situations support for an external user is required.
The first user is KVM on PPC64
VFIO is designed to be used via ioctls on file descriptors
returned by VFIO.
However in some situations support for an external user is required.
The first user is KVM on PPC64 (SPAPR TCE protocol) which is going to
use the existing VFIO groups for exclusive access in real/virtual mode
on a host
Hi Alexy,
On Thu, 27 Jun 2013 15:02:31 +1000 Alexey Kardashevskiy a...@ozlabs.ru wrote:
index c488da5..54192b2 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1370,6 +1370,59 @@ static const struct file_operations vfio_device_fops =
{
};
/**
+ * External user API,
Hi Alexy,
On Thu, 27 Jun 2013 15:02:31 +1000 Alexey Kardashevskiy a...@ozlabs.ru wrote:
+/* Allows an external user (for example, KVM) to unlock an IOMMU group */
+static void vfio_group_del_external_user(struct file *filep)
+{
+ struct vfio_group *group = filep-private_data;
+
+
On Thu, 2013-06-27 at 16:59 +1000, Stephen Rothwell wrote:
+/* Allows an external user (for example, KVM) to unlock an IOMMU
group */
+static void vfio_group_del_external_user(struct file *filep)
+{
+ struct vfio_group *group = filep-private_data;
+
+ BUG_ON(filep-f_op !=
On 06/27/2013 07:42 PM, Benjamin Herrenschmidt wrote:
On Thu, 2013-06-27 at 16:59 +1000, Stephen Rothwell wrote:
+/* Allows an external user (for example, KVM) to unlock an IOMMU
group */
+static void vfio_group_del_external_user(struct file *filep)
+{
+ struct vfio_group *group =
VFIO is designed to be used via ioctls on file descriptors
returned by VFIO.
However in some situations support for an external user is required.
The first user is KVM on PPC64 (SPAPR TCE protocol) which is going to
use the existing VFIO groups for exclusive access in real/virtual mode
in the
