Re: [PATCH] x86: efi: Turn off efi_enabled after setup on mixedfw/kernel

From: Matt Fleming
Date: Mon Oct 08 2012 - 10:28:17 EST


On Sun, 2012-08-19 at 14:48 -0700, Olof Johansson wrote:
> When 32-bit EFI is used with 64-bit kernel (or vice versa), turn off
> efi_enabled once setup is done. Beyond setup, it is normally used to
> determine if runtime services are available and we will have none.
>
> This will resolve issues stemming from efivars modprobe panicking on a
> 32/64-bit setup, as well as some reboot issues on similar setups.
>
> Signed-off-by: Olof Johansson <olof@xxxxxxxxx>
> Cc: stable@xxxxxxxxxx # 3.4 and 3.5
> Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
> Cc: Matthew Garrett <mjg@xxxxxxxxxx>
> ---
> arch/x86/kernel/setup.c | 11 +++++++++++
> arch/x86/platform/efi/efi.c | 14 ++++++++------
> 2 files changed, 19 insertions(+), 6 deletions(-)

Olof,

Would you mind resubmitting this patch and addressing Maarten's comment
about efi_is_native()?

--
Matt Fleming, Intel Open Source Technology Center

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