Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH v4 3/5] x86/cpuid: Make clearcpuid an early param | Date | Mon, 24 Jul 2017 17:43:51 -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.
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 60b7aa6330ed..600e0cf714b9 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1285,7 +1285,7 @@ static __init int setup_disablecpuid(char *arg) return 1; } -__setup("clearcpuid=", setup_disablecpuid); +early_param("clearcpuid", setup_disablecpuid); #ifdef CONFIG_X86_64 struct desc_ptr idt_descr __ro_after_init = { -- 2.9.4
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