diff --git a/libs/vkd3d/device.c b/libs/vkd3d/device.c
index a8647d15..df74b9c3 100644
--- a/libs/vkd3d/device.c
+++ b/libs/vkd3d/device.c
@@ -4521,11 +4521,15 @@ static D3D12_RESOURCE_ALLOCATION_INFO * STDMETHODCALLTYPE d3d12_device_GetResour
         D3D12_RESOURCE_ALLOCATION_INFO *info, UINT visible_mask, UINT count,
         const D3D12_RESOURCE_DESC1 *resource_descs, D3D12_RESOURCE_ALLOCATION_INFO1 *info1)
 {
-    FIXME("iface %p, info %p, visible_mask 0x%08x, count %u, resource_descs %p, info1 %p stub!\n",
+    struct d3d12_device *device = impl_from_ID3D12Device8(iface);
+
+    TRACE("iface %p, info %p, visible_mask 0x%08x, count %u, resource_descs %p, info1 %p.\n",
             iface, info, visible_mask, count, resource_descs, info1);
 
-    info->Alignment = 0;
-    info->SizeInBytes = ~(uint64_t)0;
+    debug_ignored_node_mask(visible_mask);
+
+    d3d12_device_get_resource1_allocation_info(device, info1, count, resource_descs, info);
+
     return info;
 }
 
diff --git a/libs/vkd3d/resource.c b/libs/vkd3d/resource.c
index 7304846f..446ef3ab 100644
--- a/libs/vkd3d/resource.c
+++ b/libs/vkd3d/resource.c
@@ -1857,6 +1857,7 @@ static bool d3d12_resource_validate_texture_alignment(const D3D12_RESOURCE_DESC1
 
 HRESULT d3d12_resource_validate_desc(const D3D12_RESOURCE_DESC1 *desc, struct d3d12_device *device)
 {
+    const D3D12_MIP_REGION *mip_region = &desc->SamplerFeedbackMipRegion;
     const struct vkd3d_format *format;
 
     switch (desc->Dimension)
@@ -1926,6 +1927,12 @@ HRESULT d3d12_resource_validate_desc(const D3D12_RESOURCE_DESC1 *desc, struct d3
 
     d3d12_validate_resource_flags(desc->Flags);
 
+    if (mip_region->Width && mip_region->Height && mip_region->Depth)
+    {
+        FIXME("Unhandled sampler feedback mip region size (%u, %u, %u).\n", mip_region->Width, mip_region->Height,
+                mip_region->Depth);
+    }
+
     return S_OK;
 }
 
diff --git a/tests/d3d12.c b/tests/d3d12.c
index 6d49dbae..9d2cd113 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -32428,10 +32428,8 @@ static void test_resource_allocation_info(void)
     }
 
     info = ID3D12Device8_GetResourceAllocationInfo2(device8, 0, ARRAY_SIZE(desc_array1), desc_array1, infos1);
-    todo
     ok(info.Alignment >= D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT,
             "Got unexpected alignment %"PRIu64".\n", info.Alignment);
-    todo
     check_alignment(info.SizeInBytes, info.Alignment);
     ok(info.SizeInBytes >= total, "Got unexpected size %"PRIu64".\n", info.SizeInBytes);
     ok(!infos1[0].Offset, "Got unexpected offset %"PRIu64".\n", infos1[0].Offset);