>>> On 01.06.16 at 21:52, <suravee.suthikulpa...@amd.com> wrote:
> From: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com>
> 
> The guest IOMMU feature is currently not functioning. However,
> the current guest_iommu_init() is causing issue when it tries to
> register mmio handler because the it is currently called by the
> following code path:
> 
>   arch/x86/domain.c: arch_domain_create()
>     ]- drivers/passthrough/iommu.c: iommu_domain_init()
>       |- drivers/passthrough/amd/pci_amd_iommu.c: amd_iommu_domain_init();
>         |- drivers/passthrough/amd/iommu_guest.c: guest_iommu_init()
> 
> At this point, the hvm_domain_initialised() has not been called.
> So register_mmio_handler() in guest_iommu_init() silently fails.
> 
> This patch removes the guest IOMMU feature for now until we can properly
> support it.
> 
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com>

Thanks, quite reasonable. And imo actually a 4.7 candidate. Wei?

Jan


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