On 08/11/14 23:10, Dave Young wrote:
> noefi param can be used for arches other than X86 later, thus move it out of
> x86 platform code.
>
> Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
> ---
> arch/x86/platform/efi/efi.c | 10 +---------
> drivers/firmware/efi/efi.c | 13 +++++++++++++
> include/linux/efi.h | 1 +
> 3 files changed, 15 insertions(+), 9 deletions(-)
This line in Documentation/kernel-parameters.txt needs to be updated:
noefi [X86] Disable EFI runtime services support.
> diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> index 850da94..dd7aaa1 100644
> --- a/arch/x86/platform/efi/efi.c
> +++ b/arch/x86/platform/efi/efi.c
> @@ -70,14 +70,6 @@ static efi_config_table_type_t arch_tables[] __initdata = {
>
> u64 efi_setup; /* efi setup_data physical address */
>
> -static bool disable_runtime __initdata = false;
> -static int __init setup_noefi(char *arg)
> -{
> - disable_runtime = true;
> - return 0;
> -}
> -early_param("noefi", setup_noefi);
> -
> int add_efi_memmap;
> EXPORT_SYMBOL(add_efi_memmap);
>
> @@ -492,7 +484,7 @@ void __init efi_init(void)
> if (!efi_runtime_supported())
> pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
> else {
> - if (disable_runtime || efi_runtime_init())
> + if (efi_runtime_disabled() || efi_runtime_init())
> return;
> }
> if (efi_memmap_init())
> diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
> index 64ecbb5..c8f01a7 100644
> --- a/drivers/firmware/efi/efi.c
> +++ b/drivers/firmware/efi/efi.c
> @@ -41,6 +41,19 @@ struct efi __read_mostly efi = {
> };
> EXPORT_SYMBOL(efi);
>
> +static bool disable_runtime;
> +static int __init setup_noefi(char *arg)
> +{
> + disable_runtime = true;
> + return 0;
> +}
> +early_param("noefi", setup_noefi);
> +
> +bool efi_runtime_disabled(void)
> +{
> + return disable_runtime;
> +}
> +
> static struct kobject *efi_kobj;
> static struct kobject *efivars_kobj;
>
> diff --git a/include/linux/efi.h b/include/linux/efi.h
> index 45cb4ff..06d7c03 100644
> --- a/include/linux/efi.h
> +++ b/include/linux/efi.h
> @@ -1227,4 +1227,5 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
> unsigned long *load_addr,
> unsigned long *load_size);
>
> +bool efi_runtime_disabled(void);
> #endif /* _LINUX_EFI_H */
>
--
~Randy
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