RE: [Xen-devel] [PATCH] Fix dom0 boot issue with VT-d enabled

["Han, Weidong" <weidong.han@xxxxxxxxx>]

Resend the patch. This patch split iommu setup and dom0 setup.

Randy (Weidong)

Keir Fraser wrote:
> On 22/4/08 06:56, "Han, Weidong" <weidong.han@xxxxxxxxx> wrote:
> 
>> c/s 17487 put iommu_setup() in __initcall(), this makes
>> iommu_setup() be called before dom0 creation. Because iommu_setup()
>> will do something for dom0 such as map 1:1 page table, while dom0 is
>> NULL, reboot happens during dom0 booting. This patch moves
>> iommu_setup() behind dom0 creation.
> 
> The code for system and domain initialisation of iommu state is a
> disgraceful mess. The former should be done early, before domains
> (including dom0) are created. If you have stuff to do for dom0, do it
> when dom0 is created. You get a call into your code at that point.
> 
>  -- Keir

Attachment: vtd-boot-2.patch
Description: vtd-boot-2.patch

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