Re: [Xen-devel] Re: Oops when loading xen_platform_pci module in HVM domain on CS 11429

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 8/9/06 18:03, "Steven Smith" <sos22-xen@xxxxxxxxxxxxx> wrote:

>> Page directory entries use permissions _PAGE_TABLE, which does not include
>> _PAGE_NX. So clearing _PAGE_NX from the PTEs, using
>> change_page_attr(PAGE_KERNEL_EXEC), should suffice.
> The oops message is fairly clear that _PAGE_NX is set on the PMD, and
> I'd guess it probably got set from phys_pmd_init.
> 
> I think vmalloc_exec is probably the right answer here.  I'll have a
> go at this over the weekend.

I've had a go (c/s 11435). It's complicated by the fact that vmalloc_exec()
and __PAGE_KERNEL_EXEC are not exported to modules.

 -- Keir



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