linux-kernel - Re: [PATCH v2 13/15] arm64: add EFI runtime services

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Date:	Tue, 18 Mar 2014 12:34:19 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Leif Lindholm <leif.lindholm@...aro.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"matt.fleming@...el.com" <matt.fleming@...el.com>,
	"msalter@...hat.com" <msalter@...hat.com>,
	"roy.franz@...aro.org" <roy.franz@...aro.org>
Subject: Re: [PATCH v2 13/15] arm64: add EFI runtime services

On Thu, Mar 13, 2014 at 10:47:06PM +0000, Leif Lindholm wrote:
> --- /dev/null
> +++ b/arch/arm64/kernel/efi.c
[...]
> +/*
> + * Called from setup_arch with interrupts disabled.
> + */
> +void __init efi_enter_virtual_mode(void)
[...]
> --- a/init/main.c
> +++ b/init/main.c
> @@ -902,6 +902,10 @@ static noinline void __init kernel_init_freeable(void)
>         smp_prepare_cpus(setup_max_cpus);
> 
>         do_pre_smp_initcalls();
> +
> +       if (IS_ENABLED(CONFIG_ARM64) && efi_enabled(EFI_BOOT))
> +               efi_enter_virtual_mode();

The comment for the efi_enter_virtual_mode() function says "called from
setup_arch with interrupts disabled". None of these are true for the
call above (and I would really prefer an arch call than this arm64
conditional call in init/main.c.

-- 
Catalin
--
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