[meta-intel] [PATCH 2/4 v3] meta-haswell-wc: provide machine configuration for haswell-wc

[Tom Zanussi]

On Sat, 2013-09-28 at 00:26 +0800, boon.leong.ong at intel.com wrote:
> From: Ong Boon Leong <boon.leong.ong at intel.com>
> 
> Create a new machine named 'haswell-wc'.
> 
> Signed-off-by: Ong Boon Leong <boon.leong.ong at intel.com>
> ---
>  meta-haswell-wc/conf/machine/haswell-wc.conf |   24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 meta-haswell-wc/conf/machine/haswell-wc.conf
> 
> diff --git a/meta-haswell-wc/conf/machine/haswell-wc.conf b/meta-haswell-wc/conf/machine/haswell-wc.conf
> new file mode 100644
> index 0000000..a8982e8
> --- /dev/null
> +++ b/meta-haswell-wc/conf/machine/haswell-wc.conf
> @@ -0,0 +1,24 @@
> +#@TYPE: Machine
> +#@NAME: haswell-wc
> +
> +#@WEBTITLE: Intel 4th Generation Core Platforms: Core i3, i5, i7 (Haswell)
> +
> +#@DESCRIPTION: Machine configuration for Shark Bay systems
> +# i.e. Haswell + Lynx Point
> +
> +PREFERRED_VERSION_linux-yocto ?= "3.8%"
> +MACHINE_FEATURES += "pcbios efi va-impl-intel"
> +
> +require conf/machine/include/tune-x86_64.inc
> +require conf/machine/include/ia32-base.inc
> +
> +MACHINE_HWCODECS ?= "va-intel gst-va-intel"
> +
> +XSERVER ?= "${XSERVER_IA32_BASE} \
> +           ${XSERVER_IA32_EXT} \
> +	   ${XSERVER_IA32_I965} \
> +           "
> +
> +# This Kernel Option is required to relax ACPI resource conflict complaints
> +# happens when loading SMBus driver
> +APPEND += "acpi_enforce_resources=lax"

Could you explain why 'acpi_enforce_resources=lax' is needed?  I see
that crystalforest-server and crystalforest-gladden say they need it for
'Intel Quick Assist Technology Software' (why does Quick Assist need
it?), but why is it needed here (I see it's causes complaints - what
happens, just a message in the kernel log or does the system not boot?

Thanks,

Tom