setup_clear_cpu_cap() is __init and hence may not be called post-boot.
Note that opt_pku nevertheless is not getting __initdata added - see
e.g. commit 43fa95ae6a ("mm: make opt_bootscrub non-init").
Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/arch/x86/cpu/common.c
+++ b/xen/arch/x86/cpu/common.c
@@ -466,7 +466,7 @@ void identify_cpu(struct cpuinfo_x86 *c)
this_cpu->c_init(c);
- if ( !opt_pku )
+ if (c == &boot_cpu_data && !opt_pku)
setup_clear_cpu_cap(X86_FEATURE_PKU);
/*
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