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Re: [Xen-devel] [RFC v1] x86, platform, xen, kconfig: add xen defconfig helpers



On Wed, Jun 04, 2014 at 05:48:19PM -0700, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>
> 
> Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxx>
> ---
> 
> Hey folks, shiny kvm has a shortcut 'make kvmconfig' on the
> kernel, and I thought this was a good idea so wanted to add a
> respective helper for xen. Contrary to kvm though we can have
> a dom0 and a guest kernel configuration. As it is right now this
> patch bundles the same exact options for both, but figured
> folks might already have special configs for both different
> types. What options would we want as default *upstream* for each
> of these ?
> 
> Please note that since this is going upstream it makes no sense
> to add things which are not upstream though.
> 
> Thanks,
> 
>   Luis
> 
>  arch/x86/Makefile                 | 12 ++++++++++++
>  arch/x86/configs/xen_dom0.config  | 37 +++++++++++++++++++++++++++++++++++++
>  arch/x86/configs/xen_guest.config | 37 +++++++++++++++++++++++++++++++++++++
>  3 files changed, 86 insertions(+)
>  create mode 100644 arch/x86/configs/xen_dom0.config
>  create mode 100644 arch/x86/configs/xen_guest.config
> 
> diff --git a/arch/x86/Makefile b/arch/x86/Makefile
> index 33f71b0..8b2bada 100644
> --- a/arch/x86/Makefile
> +++ b/arch/x86/Makefile
> @@ -256,6 +256,16 @@ kvmconfig:
>       $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O 
> $(objtree) $(objtree)/.config $(srctree)/arch/x86/configs/kvm_guest.config
>       $(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
>  
> +xendom0config:
> +     $(if $(wildcard $(objtree)/.config),, $(error You need an existing 
> .config for this target))
> +     $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O 
> $(objtree) $(objtree)/.config $(srctree)/arch/x86/configs/xen_dom0.config
> +     $(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
> +
> +xenguestconfig:
> +     $(if $(wildcard $(objtree)/.config),, $(error You need an existing 
> .config for this target))
> +     $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O 
> $(objtree) $(objtree)/.config $(srctree)/arch/x86/configs/xen_guest.config
> +     $(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
> +
>  define archhelp
>    echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
>    echo  '  install      - Install kernel using'
> @@ -270,4 +280,6 @@ define archhelp
>    echo  '                  FDARGS="..."  arguments for the booted kernel'
>    echo  '                  FDINITRD=file initrd for the booted kernel'
>    echo  '  kvmconfig - Enable additional options for guest kernel support'
> +  echo  '  xendom0config  - Enable additional options for xen dom0 kernel 
> support'
> +  echo  '  xenguestconfig - Enable additional options for xen guest kernel 
> support'
>  endef
> diff --git a/arch/x86/configs/xen_dom0.config 
> b/arch/x86/configs/xen_dom0.config
> new file mode 100644
> index 0000000..3f155e0
> --- /dev/null
> +++ b/arch/x86/configs/xen_dom0.config
> @@ -0,0 +1,37 @@
> +CONFIG_XEN=y
> +CONFIG_XEN_DOM0=y
> +CONFIG_XEN_PVHVM=y
> +CONFIG_XEN_MAX_DOMAIN_MEMORY=500
> +CONFIG_XEN_SAVE_RESTORE=y
> +# CONFIG_XEN_DEBUG_FS is not set
> +CONFIG_XEN_PVH=y
> +CONFIG_PCI_XEN=y
> +CONFIG_XEN_PCIDEV_FRONTEND=m
> +CONFIG_XEN_BLKDEV_FRONTEND=m
> +CONFIG_XEN_BLKDEV_BACKEND=m
> +CONFIG_NETXEN_NIC=m
> +CONFIG_XEN_NETDEV_FRONTEND=m
> +CONFIG_XEN_NETDEV_BACKEND=m
> +CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
> +CONFIG_HVC_XEN=y
> +CONFIG_HVC_XEN_FRONTEND=y
> +# CONFIG_TCG_XEN is not set
> +CONFIG_XEN_WDT=m
> +CONFIG_XEN_FBDEV_FRONTEND=y
> +CONFIG_XEN_BALLOON=y
> +CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
> +CONFIG_XEN_SCRUB_PAGES=y
> +CONFIG_XEN_DEV_EVTCHN=m
> +CONFIG_XEN_BACKEND=y
> +CONFIG_XENFS=m
> +CONFIG_XEN_COMPAT_XENFS=y
> +CONFIG_XEN_SYS_HYPERVISOR=y
> +CONFIG_XEN_XENBUS_FRONTEND=y
> +CONFIG_XEN_GNTDEV=m
> +CONFIG_XEN_GRANT_DEV_ALLOC=m
> +CONFIG_SWIOTLB_XEN=y
> +CONFIG_XEN_PCIDEV_BACKEND=m
> +CONFIG_XEN_PRIVCMD=m
> +CONFIG_XEN_ACPI_PROCESSOR=m
> +# CONFIG_XEN_MCE_LOG is not set

Probably want that on.

> +CONFIG_XEN_HAVE_PVMMU=y
> diff --git a/arch/x86/configs/xen_guest.config 
> b/arch/x86/configs/xen_guest.config
> new file mode 100644
> index 0000000..3f155e0
> --- /dev/null
> +++ b/arch/x86/configs/xen_guest.config
> @@ -0,0 +1,37 @@
> +CONFIG_XEN=y
> +CONFIG_XEN_DOM0=y
> +CONFIG_XEN_PVHVM=y
> +CONFIG_XEN_MAX_DOMAIN_MEMORY=500
> +CONFIG_XEN_SAVE_RESTORE=y
> +# CONFIG_XEN_DEBUG_FS is not set
> +CONFIG_XEN_PVH=y
> +CONFIG_PCI_XEN=y
> +CONFIG_XEN_PCIDEV_FRONTEND=m
> +CONFIG_XEN_BLKDEV_FRONTEND=m
> +CONFIG_XEN_BLKDEV_BACKEND=m
> +CONFIG_NETXEN_NIC=m
> +CONFIG_XEN_NETDEV_FRONTEND=m
> +CONFIG_XEN_NETDEV_BACKEND=m
> +CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
> +CONFIG_HVC_XEN=y
> +CONFIG_HVC_XEN_FRONTEND=y
> +# CONFIG_TCG_XEN is not set
> +CONFIG_XEN_WDT=m
> +CONFIG_XEN_FBDEV_FRONTEND=y
> +CONFIG_XEN_BALLOON=y
> +CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
> +CONFIG_XEN_SCRUB_PAGES=y
> +CONFIG_XEN_DEV_EVTCHN=m
> +CONFIG_XEN_BACKEND=y
> +CONFIG_XENFS=m
> +CONFIG_XEN_COMPAT_XENFS=y
> +CONFIG_XEN_SYS_HYPERVISOR=y
> +CONFIG_XEN_XENBUS_FRONTEND=y
> +CONFIG_XEN_GNTDEV=m
> +CONFIG_XEN_GRANT_DEV_ALLOC=m
> +CONFIG_SWIOTLB_XEN=y
> +CONFIG_XEN_PCIDEV_BACKEND=m
> +CONFIG_XEN_PRIVCMD=m
> +CONFIG_XEN_ACPI_PROCESSOR=m
> +# CONFIG_XEN_MCE_LOG is not set
> +CONFIG_XEN_HAVE_PVMMU=y
> -- 
> 2.0.0.rc3.18.g00a5b79
> 
> 
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