Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,acpi: features, fixes, cleanups.

vdpa support
virtio-mem support
a handy script for disassembling acpi tables
misc fixes and cleanups

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 07 Jul 2020 13:00:35 BST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (41 commits)
  vhost-vdpa: introduce vhost-vdpa net client
  vhost-vdpa: introduce vhost-vdpa backend
  vhost_net: introduce set_config & get_config
  vhost: implement vhost_force_iommu method
  vhost: introduce new VhostOps vhost_force_iommu
  vhost: implement vhost_vq_get_addr method
  vhost: introduce new VhostOps vhost_vq_get_addr
  vhost: implement vhost_dev_start method
  vhost: introduce new VhostOps vhost_dev_start
  vhost: check the existence of vhost_set_iotlb_callback
  virtio-pci: implement queue_enabled method
  virtio-bus: introduce queue_enabled method
  vhost_net: use the function qemu_get_peer
  net: introduce qemu_get_peer
  MAINTAINERS: add VT-d entry
  docs: vhost-user: add Virtio status protocol feature
  tests/acpi: remove stale allowed tables
  numa: Auto-enable NUMA when any memory devices are possible
  virtio-mem: Exclude unplugged memory during migration
  virtio-mem: Add trace events
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/arm/virt.c
#	hw/virtio/trace-events

3 files changed, 62 insertions, 12 deletions

diff --git a/hw/net/vhost_net-stub.c b/hw/net/vhost_net-stub.c
index aac0e98228..a7f4252630 100644
--- a/hw/net/vhost_net-stub.c
+++ b/hw/net/vhost_net-stub.c
@@ -52,6 +52,17 @@ uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
     return features;
 }
 
+int vhost_net_get_config(struct vhost_net *net,  uint8_t *config,
+                         uint32_t config_len)
+{
+    return 0;
+}
+int vhost_net_set_config(struct vhost_net *net, const uint8_t *data,
+                         uint32_t offset, uint32_t size, uint32_t flags)
+{
+    return 0;
+}
+
 void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
 {
 }
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 6b82803fa7..24d555e764 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -17,6 +17,7 @@
 #include "net/net.h"
 #include "net/tap.h"
 #include "net/vhost-user.h"
+#include "net/vhost-vdpa.h"
 
 #include "standard-headers/linux/vhost_types.h"
 #include "hw/virtio/virtio-net.h"
@@ -33,12 +34,6 @@
 #include "hw/virtio/vhost.h"
 #include "hw/virtio/virtio-bus.h"
 
-struct vhost_net {
-    struct vhost_dev dev;
-    struct vhost_virtqueue vqs[2];
-    int backend;
-    NetClientState *nc;
-};
 
 /* Features supported by host kernel. */
 static const int kernel_feature_bits[] = {
@@ -96,6 +91,11 @@ static const int *vhost_net_get_feature_bits(struct vhost_net *net)
     case NET_CLIENT_DRIVER_VHOST_USER:
         feature_bits = user_feature_bits;
         break;
+#ifdef CONFIG_VHOST_NET_VDPA
+    case NET_CLIENT_DRIVER_VHOST_VDPA:
+        feature_bits = vdpa_feature_bits;
+        break;
+#endif
     default:
         error_report("Feature bits not defined for this type: %d",
                 net->nc->info->type);
@@ -110,6 +110,16 @@ uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features)
     return vhost_get_features(&net->dev, vhost_net_get_feature_bits(net),
             features);
 }
+int vhost_net_get_config(struct vhost_net *net,  uint8_t *config,
+                         uint32_t config_len)
+{
+    return vhost_dev_get_config(&net->dev, config, config_len);
+}
+int vhost_net_set_config(struct vhost_net *net, const uint8_t *data,
+                         uint32_t offset, uint32_t size, uint32_t flags)
+{
+    return vhost_dev_set_config(&net->dev, data, offset, size, flags);
+}
 
 void vhost_net_ack_features(struct vhost_net *net, uint64_t features)
 {
@@ -306,7 +316,9 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
     BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(dev)));
     VirtioBusState *vbus = VIRTIO_BUS(qbus);
     VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus);
+    struct vhost_net *net;
     int r, e, i;
+    NetClientState *peer;
 
     if (!k->set_guest_notifiers) {
         error_report("binding does not support guest notifiers");
@@ -314,9 +326,9 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
     }
 
     for (i = 0; i < total_queues; i++) {
-        struct vhost_net *net;
 
-        net = get_vhost_net(ncs[i].peer);
+        peer = qemu_get_peer(ncs, i);
+        net = get_vhost_net(peer);
         vhost_net_set_vq_index(net, i * 2);
 
         /* Suppress the masking guest notifiers on vhost user
@@ -335,15 +347,16 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
     }
 
     for (i = 0; i < total_queues; i++) {
-        r = vhost_net_start_one(get_vhost_net(ncs[i].peer), dev);
+        peer = qemu_get_peer(ncs, i);
+        r = vhost_net_start_one(get_vhost_net(peer), dev);
 
         if (r < 0) {
             goto err_start;
         }
 
-        if (ncs[i].peer->vring_enable) {
+        if (peer->vring_enable) {
             /* restore vring enable state */
-            r = vhost_set_vring_enable(ncs[i].peer, ncs[i].peer->vring_enable);
+            r = vhost_set_vring_enable(peer, peer->vring_enable);
 
             if (r < 0) {
                 goto err_start;
@@ -355,7 +368,8 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
 
 err_start:
     while (--i >= 0) {
-        vhost_net_stop_one(get_vhost_net(ncs[i].peer), dev);
+        peer = qemu_get_peer(ncs , i);
+        vhost_net_stop_one(get_vhost_net(peer), dev);
     }
     e = k->set_guest_notifiers(qbus->parent, total_queues * 2, false);
     if (e < 0) {
@@ -430,6 +444,12 @@ VHostNetState *get_vhost_net(NetClientState *nc)
         assert(vhost_net);
         break;
 #endif
+#ifdef CONFIG_VHOST_NET_VDPA
+    case NET_CLIENT_DRIVER_VHOST_VDPA:
+        vhost_net = vhost_vdpa_get_vhost_net(nc);
+        assert(vhost_net);
+        break;
+#endif
     default:
         break;
     }
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 9bb5578e5d..1596cb1397 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -43,6 +43,7 @@
 #include "monitor/qdev.h"
 #include "hw/pci/pci.h"
 #include "net_rx_pkt.h"
+#include "hw/virtio/vhost.h"
 
 #define VIRTIO_NET_VM_VERSION    11
 
@@ -125,6 +126,8 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
     VirtIONet *n = VIRTIO_NET(vdev);
     struct virtio_net_config netcfg;
 
+    int ret = 0;
+    memset(&netcfg, 0 , sizeof(struct virtio_net_config));
     virtio_stw_p(vdev, &netcfg.status, n->status);
     virtio_stw_p(vdev, &netcfg.max_virtqueue_pairs, n->max_queues);
     virtio_stw_p(vdev, &netcfg.mtu, n->net_conf.mtu);
@@ -138,6 +141,15 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
     virtio_stl_p(vdev, &netcfg.supported_hash_types,
                  VIRTIO_NET_RSS_SUPPORTED_HASHES);
     memcpy(config, &netcfg, n->config_size);
+
+    NetClientState *nc = qemu_get_queue(n->nic);
+    if (nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
+        ret = vhost_net_get_config(get_vhost_net(nc->peer), (uint8_t *)&netcfg,
+                             n->config_size);
+    if (ret != -1) {
+        memcpy(config, &netcfg, n->config_size);
+    }
+    }
 }
 
 static void virtio_net_set_config(VirtIODevice *vdev, const uint8_t *config)
@@ -153,6 +165,13 @@ static void virtio_net_set_config(VirtIODevice *vdev, const uint8_t *config)
         memcpy(n->mac, netcfg.mac, ETH_ALEN);
         qemu_format_nic_info_str(qemu_get_queue(n->nic), n->mac);
     }
+
+    NetClientState *nc = qemu_get_queue(n->nic);
+    if (nc->peer->info->type == NET_CLIENT_DRIVER_VHOST_VDPA) {
+        vhost_net_set_config(get_vhost_net(nc->peer), (uint8_t *)&netcfg,
+                               0, n->config_size,
+                        VHOST_SET_CONFIG_TYPE_MASTER);
+      }
 }
 
 static bool virtio_net_started(VirtIONet *n, uint8_t status)