tree 1fc0917b110b62465de17039177b67f07b2831f6
parent 0303c9729afc4094ef53e552b7b8cff7436028d6
author Juergen Gross <jgross@suse.com> 1688389232 +0200
committer Borislav Petkov (AMD) <bp@alien8.de> 1688550256 +0200

x86/xen: Fix secondary processors' FPU initialization

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.

Call fpu__init_cpu() in Xen's 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@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230703130032.22916-1-jgross@suse.com