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

[Boris Ostrovsky]

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>