From 90fea5a800c3dd80fb8ad9a02929bcef5fde42b8 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Tue, 27 Sep 2022 15:48:08 +0800 Subject: vdpa: device feature provisioning This patch allows the device features to be provisioned through netlink. A new attribute is introduced to allow the userspace to pass a 64bit device features during device adding. This provides several advantages: - Allow to provision a subset of the features to ease the cross vendor live migration. - Better debug-ability for vDPA framework and parent. Reviewed-by: Eli Cohen Signed-off-by: Jason Wang Message-Id: <20220927074810.28627-2-jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin --- include/uapi/linux/vdpa.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 25c55cab3d7c..9dc855f37c59 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -52,6 +52,8 @@ enum vdpa_attr { VDPA_ATTR_DEV_VENDOR_ATTR_NAME, /* string */ VDPA_ATTR_DEV_VENDOR_ATTR_VALUE, /* u64 */ + VDPA_ATTR_DEV_FEATURES, /* u64 */ + /* new attributes must be added above here */ VDPA_ATTR_MAX, }; -- cgit v1.2.3-59-g8ed1b