Re: [PATCH v5 1/4] iommu: Add page_ext for IOMMU_DEBUG_PAGEALLOC

["David Hildenbrand (Red Hat)" <david@kernel.org>]

On 1/8/26 11:42, Mostafa Saleh wrote:
> On Wed, Jan 07, 2026 at 05:53:50PM +0100, David Hildenbrand (Red Hat) wrote:
>> On 1/6/26 17:21, Mostafa Saleh wrote:
>>> Add a new config IOMMU_DEBUG_PAGEALLOC, which registers new data to
>>> page_ext.
>>>
>>> This config will be used by the IOMMU API to track pages mapped in
>>> the IOMMU to catch drivers trying to free kernel memory that they
>>> still map in their domains, causing all types of memory corruption.
>>>
>>> This behaviour is disabled by default and can be enabled using
>>> kernel cmdline iommu.debug_pagealloc.
>>>
>>> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
>>> Signed-off-by: Mostafa Saleh <smostafa@google.com>
>>> ---
>>
>> I think I acked it, but maybe too late for you to spot it
>>
>> for the MM bits
>>
>> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
> 
> Thanks! If my mail client is not acting, it seems that was the
> same version(v5) also.

Maybe my client is having problems :)

-- 
Cheers

David