Re: [PATCH] x86/xen: fix secondary processor fpu initialization

[Juergen Gross]

On 03.07.23 19:51, Boris Ostrovsky wrote:
> On 7/3/23 9:00 AM, Juergen Gross wrote:
> > Moving the call of fpu__init_cpu() from cpu_init() to start_secondary()
> > broke Xen PV guests, as those don't call start_secondary() for APs.
> >
> > Fix that by adding the call of fpu__init_cpu() to cpu_bringup(), which
> > is the Xen PV replacement of start_secondary().
> >
> > Fixes: b81fac906a8f ("x86/fpu: Move FPU initialization into 
> > arch_cpu_finalize_init()")
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>
>
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

x86 maintainers, could this please go through the tip tree? The patch is
depending on other 6.5 patches which went in via tip.


Juergen

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