linux-kernel - Re: [PATCH 3/6] x86/idt: remove address argument to idt

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Message-ID: <87o8dhfjc8.ffs@nanos.tec.linutronix.de>
Date:   Tue, 11 May 2021 16:14:47 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...nel.org>
Cc:     Steve Wahl <steve.wahl@....com>, Mike Travis <mike.travis@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "H. Peter Anvin \(Intel\)" <hpa@...or.com>
Subject: Re: [PATCH 3/6] x86/idt: remove address argument to idt_invalidate()

On Mon, May 10 2021 at 17:55, H. Peter Anvin wrote:
> diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
> index 64b00b0d7fe8..6ba90f47d8c3 100644
> --- a/arch/x86/kernel/machine_kexec_32.c
> +++ b/arch/x86/kernel/machine_kexec_32.c
> @@ -232,8 +232,8 @@ void machine_kexec(struct kimage *image)
>  	 * The gdt & idt are now invalid.
>  	 * If you want to load them you must set up your own idt & gdt.
>  	 */
> -	idt_invalidate(phys_to_virt(0));
> -	set_gdt(phys_to_virt(0), 0);
> +	idt_invalidate();
> +	set_gdt(0, 0);

  (NULL, 0)

first argument it a pointer...