Re: [XEN][PATCH] xen/arm: restrict cpu_up_send_sgi() to arm32

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Fri, 12 Sep 2025, Julien Grall wrote:
> Hi Grygorii,
> 
> On 11/09/2025 09:12, Grygorii Strashko wrote:
> > From: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
> > 
> > Restrict cpu_up_send_sgi() function to arm32 code as it's used by arm32
> > platforms only and unreachable on arm64 (Misra rule 2.1).
> > 
> > Signed-off-by: Grygorii Strashko <grygorii_strashko@xxxxxxxx>
> > ---> Logically cpu_up_send_sgi() should be moved in arm32, but source is
> > "GPL-2.0-or-later" while possible destination is "GPL-2.0-only", so put it
> > under ifdef for now.
> 
> :(. I don't know if we will ever solve this license mess... Looking at the
> list of platform using cpu_up_send_sgi(), all the platforms are 10+ years old
> and to be honest except maybe the rcar2 development platforms. I doubt there
> are anyone using them.
> 
> So I would be tempted to get rid of them and mandate PSCI when booting on Xen.
> 
> Bertrand, Michal, Stefano any thoughts?

I am OK with that.


> Meanwhile for this patch:
> 
> Acked-by: Julien Grall <jgrall@xxxxxxxxxx>