Re: [Xen-devel] [PATCH] nested EPT: fixing wrong handling for L2 guest's direct mmio access

[Tim Deegan <tim@xxxxxxx>]

At 14:35 +0800 on 17 Jan (1389965708), Yang Zhang wrote:
> From: Yang Zhang <yang.z.zhang@xxxxxxxxx>
> 
> L2 guest will access the physical device directly(nested VT-d). For such 
> access,
> Shadow EPT table should point to device's MMIO. But in current logic, L0 
> doesn't
> distinguish the MMIO whether from qemu or physical device when building 
> shadow EPT table.
> This is wrong. This patch will setup the correct shadow EPT table for such 
> MMIO ranges.
> 
> Signed-off-by: Yang Zhang <yang.z.zhang@xxxxxxxxx>

Acked-by: Tim Deegan <tim@xxxxxxx>


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