Re: [PATCH 1/4] vdpa: introduce config op to get valid iova range

[Jason Wang]

On 2020/8/5 下午8:51, Michael S. Tsirkin wrote:

On Wed, Jun 17, 2020 at 11:29:44AM +0800, Jason Wang wrote:

This patch introduce a config op to get valid iova range from the vDPA
device.

Signed-off-by: Jason Wang<jasow...@redhat.com>
---
  include/linux/vdpa.h | 14 ++++++++++++++
  1 file changed, 14 insertions(+)

diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 239db794357c..b7633ed2500c 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -41,6 +41,16 @@ struct vdpa_device {
        unsigned int index;
  };

+/**

+ * vDPA IOVA range - the IOVA range support by the device
+ * @start: start of the IOVA range
+ * @end: end of the IOVA range
+ */
+struct vdpa_iova_range {
+       u64 start;
+       u64 end;
+};
+

This is ambiguous. Is end in the range or just behind it?

In the range.

How about first/last?

Sure.

Thanks