List of Standard formats for multisampling on Feature Set 9_3 ?

Question

Is there a list of Standard formats for multisampling on Feature Set 9_3 (or for Windows Phone 8 basically) ? I know the max samples for 9_3 is 4 but I'm only getting this as valid for a RGBA8 texture. I'm trying to create a R32 texture with AA and my Lumia
520 throws :
D3D11 ERROR: ID3D11Device::CreateTexture2D: The Sample descriptor is invalid for a D3D10.0 level driver. DXGI_SAMPLE_DESC::Count (value = 4) must be between 1 and 32, inclusively. For 4 samples, the current graphics implementation only supports DXGI_SAMPLE_DESC::Quality
(value = 0) less than 0. <-- if 0 is shown here for Quality, this means the graphics implementation doesn't support this number of samples. Use CheckMultisampleQualityLevels to detect what the graphics implementation supports. [ STATE_CREATION ERROR #93:
CREATETEXTURE2D_INVALIDSAMPLES]
This basically means it's not supported, but what I was curious is, should it be supported as part of the standard ? making this more like a driver inconsistency ? I initially thought all renderable formats on 9_3 should support 4x AA.
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Answer 1

Officially only 10.1 or later Direct3D feature levels must support MSAA.
From
MSDN
Note that FEATURE_LEVEL_10_1 devices are required to support 4x MSAA for all render targets except R32G32B32A32 and R32G32B32. FEATURE_LEVEL_11_0 devices are required to support 4x MSAA for all render target formats, and 8x MSAA for all render target
formats except R32G32B32A32 formats.
For all other devices, you have to use CheckMultisampleQualityLevels at runtime to validate that MSAA is supported. For typical Desktop GPUs, feature level 9.3 and 10.0 devices are likely to support 2x and 4x MSAA.
Note also that Feature Level 9.3 only supports MSAA RenderTargets with: DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_R8G8B8A8_UNORM_SRGB, DXGI_FORMAT_D16_UNORM, DXGI_FORMAT_B8G8R8A8_UNORM, and DXGI_FORMAT_B5G6R5_UNORM per the "Multisample
render targets" list from MSDN.