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Message-ID: <23dc1c47-88ee-6b2d-1a5a-d6c812bb1761@intel.com>
Date: Tue, 13 Jun 2023 22:03:29 -0700
From: "Chang S. Bae" <chang.seok.bae@...el.com>
To: Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>
CC: <x86@...nel.org>, Linus Torvalds <torvalds@...ux-foundation.org>,
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Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [patch 17/17] x86/fpu: Move FPU initialization into
arch_cpu_finalize_init()
On 6/13/2023 4:39 PM, Thomas Gleixner wrote:
>
> @@ -2396,6 +2393,13 @@ void __init arch_cpu_finalize_init(void)
> '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
> }
>
> + /*
> + * Must be before alternatives because it might set or clear
> + * feature bits.
> + */
> + fpu__init_system();
> + fpu__init_cpu();
fpu__init_cpu() appears to be duplicated here because fpu__init_system()
invoked this already:
void __init fpu__init_system(void)
{
...
/*
* The FPU has to be operational for some of the
* later FPU init activities:
*/
fpu__init_cpu();
...
}
https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/tree/arch/x86/kernel/fpu/init.c?h=init#n223
Thanks,
Chang
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