Re: [PATCH 1/2] xen: make include/xen/unaligned.h usable on all architectures

[Julien Grall <julien@xxxxxxx>]

Hi Juergen,

On 05/12/2023 10:07, Juergen Gross wrote:
> Instead of defining get_unaligned() and put_unaligned() in a way that
> is only supporting architectures allowing unaligned accesses, use the
> same approach as the Linux kernel and let the compiler do the
> decision how to generate the code for probably unaligned data accesses.
>
> Update include/xen/unaligned.h from include/asm-generic/unaligned.h of
> the Linux kernel.
>
> The generated code has been checked to be the same on x86.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
> 803f4e1eab7a
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Can you outline your end goal? At least on arm32, I believe this will 
result to abort because event if the architecture support unaligned 
access, we are preventing them on Arm32.
Cheers,

--
Julien Grall