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

pc,pci,virtio: bugfixes, improvements

Fixes all over the place. Faster boot for virtio. ioeventfd support for
mmio.

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

# gpg: Signature made Fri 14 May 2021 15:27:13 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:
  Fix build with 64 bits time_t
  vhost-vdpa: Make vhost_vdpa_get_device_id() static
  hw/virtio: enable ioeventfd configuring for mmio
  hw/smbios: support for type 41 (onboard devices extended information)
  checkpatch: Fix use of uninitialized value
  virtio-scsi: Configure all host notifiers in a single MR transaction
  virtio-scsi: Set host notifiers and callbacks separately
  virtio-blk: Configure all host notifiers in a single MR transaction
  virtio-blk: Fix rollback path in virtio_blk_data_plane_start()
  pc-dimm: remove unnecessary get_vmstate_memory_region() method
  amd_iommu: fix wrong MMIO operations
  virtio-net: Constify VirtIOFeature feature_sizes[]
  virtio-blk: Constify VirtIOFeature feature_sizes[]
  hw/virtio: Pass virtio_feature_get_config_size() a const argument
  x86: acpi: use offset instead of pointer when using build_header()
  amd_iommu: Fix pte_override_page_mask()

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

# Conflicts:
#	hw/arm/virt.c

3 files changed, 13 insertions, 4 deletions

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 01d2101d09..8f2fb9f10b 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -371,8 +371,8 @@ static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
     return 0;
 }
 
-int vhost_vdpa_get_device_id(struct vhost_dev *dev,
-                                   uint32_t *device_id)
+static int vhost_vdpa_get_device_id(struct vhost_dev *dev,
+                                    uint32_t *device_id)
 {
     int ret;
     ret = vhost_vdpa_call(dev, VHOST_VDPA_GET_DEVICE_ID, device_id);
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index 342c918ea7..5952471b38 100644
--- a/hw/virtio/virtio-mmio.c
+++ b/hw/virtio/virtio-mmio.c
@@ -36,7 +36,9 @@
 
 static bool virtio_mmio_ioeventfd_enabled(DeviceState *d)
 {
-    return kvm_eventfds_enabled();
+    VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
+
+    return (proxy->flags & VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD) != 0;
 }
 
 static int virtio_mmio_ioeventfd_assign(DeviceState *d,
@@ -720,6 +722,8 @@ static Property virtio_mmio_properties[] = {
     DEFINE_PROP_BOOL("format_transport_address", VirtIOMMIOProxy,
                      format_transport_address, true),
     DEFINE_PROP_BOOL("force-legacy", VirtIOMMIOProxy, legacy, true),
+    DEFINE_PROP_BIT("ioeventfd", VirtIOMMIOProxy, flags,
+                    VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD_BIT, true),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -731,6 +735,11 @@ static void virtio_mmio_realizefn(DeviceState *d, Error **errp)
     qbus_create_inplace(&proxy->bus, sizeof(proxy->bus), TYPE_VIRTIO_MMIO_BUS,
                         d, NULL);
     sysbus_init_irq(sbd, &proxy->irq);
+
+    if (!kvm_eventfds_enabled()) {
+        proxy->flags &= ~VIRTIO_IOMMIO_FLAG_USE_IOEVENTFD;
+    }
+
     if (proxy->legacy) {
         memory_region_init_io(&proxy->iomem, OBJECT(d),
                               &virtio_legacy_mem_ops, proxy,
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 9e13cb9e3a..e02544b2df 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2981,7 +2981,7 @@ int virtio_set_features(VirtIODevice *vdev, uint64_t val)
     return ret;
 }
 
-size_t virtio_feature_get_config_size(VirtIOFeature *feature_sizes,
+size_t virtio_feature_get_config_size(const VirtIOFeature *feature_sizes,
                                       uint64_t host_features)
 {
     size_t config_size = 0;