Re: [Xen-devel] [PATCH for-4.13] AMD/IOMMU: Fix crash in 'V' debugkey

[Jan Beulich <jbeulich@xxxxxxxx>]

On 13.11.2019 14:41, Andrew Cooper wrote:
> c/s bb038f31168 "AMD/IOMMU: replace INTREMAP_ENTRIES" introduces a call to
> intremap_table_entries() in dump_intremap_table() before tbl.ptr is checked
> for NULL.
> 
> intremap_table_entries() internally uses virt_to_page() which falls over
> 
>   ASSERT(va >= XEN_VIRT_START);
> 
> in __virt_to_page().
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

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