Re: [Xen-devel] [PATCH v4 1/2] AMD IOMMU: Removing currently non-functioning guest iommu feature

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 02.06.16 at 12:26, <wei.liu2@xxxxxxxxxx> wrote:
> On Thu, Jun 02, 2016 at 03:55:41AM -0600, Jan Beulich wrote:
>> >>> On 01.06.16 at 21:52, <suravee.suthikulpanit@xxxxxxx> wrote:
>> > From: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>
>> > 
>> > 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.suthikulpanit@xxxxxxx>
>> 
>> Thanks, quite reasonable. And imo actually a 4.7 candidate. Wei?
>> 
> 
> Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> 
> Please apply this series within this week.

Series? Also the other one, which is pretty benign imo?

Jan


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