On 2020/4/2 下午10:36, Michael S. Tsirkin wrote:
On Thu, Apr 02, 2020 at 10:28:28PM +0800, Jason Wang wrote:
On 2020/4/2 下午10:12, Michael S. Tsirkin wrote:
vringh can now be built without IOTLB.
Select IOTLB directly where it's used.
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
This is on top of my previous patch (in vhost tree now).
drivers/vdpa/Kconfig | 1 +
drivers/vhost/Kconfig | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vdpa/Kconfig b/drivers/vdpa/Kconfig
index 7db1460104b7..08b615f2da39 100644
--- a/drivers/vdpa/Kconfig
+++ b/drivers/vdpa/Kconfig
@@ -17,6 +17,7 @@ config VDPA_SIM
depends on RUNTIME_TESTING_MENU
select VDPA
select VHOST_RING
+ select VHOST_IOTLB
default n
help
vDPA networking device simulator which loop TX traffic back
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index 21feea0d69c9..bdd270fede26 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -6,7 +6,6 @@ config VHOST_IOTLB
config VHOST_RING
tristate
- select VHOST_IOTLB
help
This option is selected by any driver which needs to access
the host side of a virtio ring.
Do we need to mention driver need to select VHOST_IOTLB by itself here?
Thanks
OK but I guess it's best to do it near where VHOST_IOTLB is defined.
Like this?
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index bdd270fede26..ce51126f51e7 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -3,6 +3,8 @@ config VHOST_IOTLB
tristate
help
Generic IOTLB implementation for vhost and vringh.
+ This option is selected by any driver which needs to support
+ an IOMMU in software.
config VHOST_RING
tristate
Yes, probably.
Thanks
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