Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH v9 3/5] x86/cpuid: Make clearcpuid an early param | Date | Fri, 6 Oct 2017 17:03:26 -0700 |
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From: Andi Kleen <ak@linux.intel.com>
Make clearcpuid= an early param, to make sure it is parsed before the XSAVE initialization. This allows to modify XSAVE state by clearing specific CPUID bits.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andi Kleen <ak@linux.intel.com> --- arch/x86/kernel/cpu/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index fd47692e5ce9..ff51c61d2df0 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1310,7 +1310,7 @@ static __init int setup_disablecpuid(char *arg) return 1; } -__setup("clearcpuid=", setup_disablecpuid); +early_param("clearcpuid", setup_disablecpuid); #ifdef CONFIG_X86_64 DEFINE_PER_CPU_FIRST(union irq_stack_union, -- 2.13.6
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