From 3fe9a15feba924675ffcc5b797185091cfb8a007 Mon Sep 17 00:00:00 2001
From: libai <libai12@huawei.com>
Date: Mon, 4 Dec 2023 14:49:53 +0800
Subject: [PATCH] vhost-vdpa: add VHOST_BACKEND_F_BYTEMAPLOG

support VHOST_BACKEND_F_BYTEMAPLOG to support vhost
device bytemap logging.

Signed-off-by: libai <libai12@huawei.com>
---
 hw/virtio/vhost-vdpa.c                       | 9 +++++----
 include/standard-headers/linux/vhost_types.h | 2 ++
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 819b2d811a..ce8ff7f417 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -829,10 +829,11 @@ static int vhost_vdpa_set_features(struct vhost_dev *dev,
 static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
 {
     uint64_t features;
-    uint64_t f = 0x1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2 |
-        0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH |
-        0x1ULL << VHOST_BACKEND_F_IOTLB_ASID |
-        0x1ULL << VHOST_BACKEND_F_SUSPEND;
+    uint64_t f = BIT_ULL(VHOST_BACKEND_F_IOTLB_MSG_V2) |
+                 BIT_ULL(VHOST_BACKEND_F_IOTLB_BATCH) |
+                 BIT_ULL(VHOST_BACKEND_F_IOTLB_ASID) |
+                 BIT_ULL(VHOST_BACKEND_F_SUSPEND) |
+                 BIT_ULL(VHOST_BACKEND_F_BYTEMAPLOG);
     int r;
 
     if (vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, &features)) {
diff --git a/include/standard-headers/linux/vhost_types.h b/include/standard-headers/linux/vhost_types.h
index fd54044936..46fc53cd83 100644
--- a/include/standard-headers/linux/vhost_types.h
+++ b/include/standard-headers/linux/vhost_types.h
@@ -192,5 +192,7 @@ struct vhost_vdpa_iova_range {
 #define VHOST_BACKEND_F_DESC_ASID    0x7
 /* IOTLB don't flush memory mapping across device reset */
 #define VHOST_BACKEND_F_IOTLB_PERSIST  0x8
+/* device can use bytemap log */
+#define VHOST_BACKEND_F_BYTEMAPLOG  0x3f
 
 #endif
-- 
2.27.0