[poky] [PATCH] genericx86: tune for i586 instead of atom

[Bruce Ashfield]

On Tue, Sep 3, 2013 at 9:43 PM, Jonathan Liu <net147 at gmail.com> wrote:
> Tuning for Intel Atom CPU can in result instructions being used that are
> not compatible with older x86 CPUs such as Intel Pentium Dual-Core
> E2200. This can result in Linux 3.10 failing to boot with:
> "This kernel requires the following features not present on the CPU:
> movbe
> Unable to boot - please use a kernel appropriate for your CPU.".

That's a bit surprising, do you have a bootlog to share ? This tune
file shouldn't
impact the kernel build options, and if it is, that's a bug.

If the error shows up on the switch to userspace, then that's a different story.

Bruce

>
> Signed-off-by: Jonathan Liu <net147 at gmail.com>
> ---
>  meta-yocto-bsp/conf/machine/genericx86.conf | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta-yocto-bsp/conf/machine/genericx86.conf b/meta-yocto-bsp/conf/machine/genericx86.conf
> index ff5cbc9..f5d9cd5 100644
> --- a/meta-yocto-bsp/conf/machine/genericx86.conf
> +++ b/meta-yocto-bsp/conf/machine/genericx86.conf
> @@ -3,7 +3,7 @@
>
>  #@DESCRIPTION: Machine configuration for generic X86 (32-bit) PCs. Supports a moderately wide range of drivers that should boot and be usable on "typical" hardware.
>
> -include conf/machine/include/tune-atom.inc
> +include conf/machine/include/tune-i586.inc
>
>  MACHINE_FEATURES = "screen keyboard pci usbhost ext2 ext3 x86 wifi acpi alsa"
>
> --
> 1.8.4
>
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