[meta-virtualization] [PATCH] linux-yocto: Add xen guest kernel fragment support for PV/HVM guests, using 'xen-guest' distro flag.

[Philip Tricca]

I'm not the gate-keeper here so feel free to disagree but I'd like this more if it were broken up a bit. Thoughts on breaking guest support out into a PV guest and a PVHVM guest? The goal here would be to partition the kernel options that aren't modules (specifically PVHVM, DOM0, PVMMU, PRIVILEGED_GUEST etc).

No need to do all of this on the first past I suppose. It may be better to have someone propose a partitioning after this gets picked up.

Also: what's with having 'KVM_GUEST' compiled in? Is it a dependency?

Cheers,
- Philip

On 10/06/2013 05:22 PM, Chris Patterson wrote:
> Signed-off-by: Chris Patterson <cjp256 at gmail.com>
> ---
>  recipes-kernel/linux/linux-yocto/xen-guest.cfg | 55 ++++++++++++++++++++++++++
>  recipes-kernel/linux/linux-yocto/xen-guest.scc |  4 ++
>  recipes-kernel/linux/linux-yocto_3.10.bbappend |  3 ++
>  recipes-kernel/linux/linux-yocto_3.4.bbappend  |  3 ++
>  recipes-kernel/linux/linux-yocto_3.8.bbappend  |  3 ++
>  5 files changed, 68 insertions(+)
>  create mode 100644 recipes-kernel/linux/linux-yocto/xen-guest.cfg
>  create mode 100644 recipes-kernel/linux/linux-yocto/xen-guest.scc
> 
> diff --git a/recipes-kernel/linux/linux-yocto/xen-guest.cfg b/recipes-kernel/linux/linux-yocto/xen-guest.cfg
> new file mode 100644
> index 0000000..cbde3cc
> --- /dev/null
> +++ b/recipes-kernel/linux/linux-yocto/xen-guest.cfg
> @@ -0,0 +1,55 @@
> +###
> +# linux 3.4, 3.8
> +CONFIG_PARAVIRT_GUEST=y
> +###
> +
> +###
> +# linux 3.10
> +CONFIG_HYPERVISOR_GUEST=y
> +###
> +
> +CONFIG_PARAVIRT=y
> +CONFIG_XEN=y
> +CONFIG_XEN_DOM0=y
> +CONFIG_XEN_PRIVILEGED_GUEST=y
> +CONFIG_XEN_PVHVM=y
> +CONFIG_XEN_MAX_DOMAIN_MEMORY=500
> +CONFIG_XEN_SAVE_RESTORE=y
> +CONFIG_KVM_GUEST=y
> +CONFIG_PARAVIRT_CLOCK=y
> +CONFIG_HIBERNATE_CALLBACKS=y
> +CONFIG_PCI_XEN=y
> +CONFIG_XEN_PCIDEV_FRONTEND=m
> +CONFIG_SYS_HYPERVISOR=y
> +CONFIG_XEN_BLKDEV_FRONTEND=y
> +CONFIG_XEN_BLKDEV_BACKEND=m
> +CONFIG_XEN_NETDEV_FRONTEND=y
> +CONFIG_XEN_NETDEV_BACKEND=m
> +CONFIG_INPUT_MISC=y
> +CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
> +CONFIG_HVC_IRQ=y
> +CONFIG_HVC_XEN=y
> +CONFIG_HVC_XEN_FRONTEND=y
> +CONFIG_XEN_WDT=m
> +CONFIG_FB_SYS_FILLRECT=y
> +CONFIG_FB_SYS_COPYAREA=y
> +CONFIG_FB_SYS_IMAGEBLIT=y
> +CONFIG_FB_SYS_FOPS=y
> +CONFIG_FB_DEFERRED_IO=y
> +CONFIG_XEN_FBDEV_FRONTEND=y
> +CONFIG_XEN_BALLOON=y
> +CONFIG_XEN_SCRUB_PAGES=y
> +CONFIG_XEN_DEV_EVTCHN=y
> +CONFIG_XEN_BACKEND=y
> +CONFIG_XENFS=y
> +CONFIG_XEN_COMPAT_XENFS=y
> +CONFIG_XEN_SYS_HYPERVISOR=y
> +CONFIG_XEN_XENBUS_FRONTEND=y
> +CONFIG_XEN_GNTDEV=y
> +CONFIG_XEN_GRANT_DEV_ALLOC=y
> +CONFIG_SWIOTLB_XEN=y
> +CONFIG_XEN_PCIDEV_BACKEND=m
> +CONFIG_XEN_PRIVCMD=m
> +CONFIG_XEN_ACPI_PROCESSOR=m
> +CONFIG_XEN_MCE_LOG=y
> +CONFIG_XEN_HAVE_PVMMU=y
> diff --git a/recipes-kernel/linux/linux-yocto/xen-guest.scc b/recipes-kernel/linux/linux-yocto/xen-guest.scc
> new file mode 100644
> index 0000000..575bc43
> --- /dev/null
> +++ b/recipes-kernel/linux/linux-yocto/xen-guest.scc
> @@ -0,0 +1,4 @@
> +define KFEATURE_DESCRIPTION "Xen PV Guest Support"
> +define KFEATURE_COMPATIBILITY board
> +
> +kconf non-hardware xen-guest.cfg
> diff --git a/recipes-kernel/linux/linux-yocto_3.10.bbappend b/recipes-kernel/linux/linux-yocto_3.10.bbappend
> index cc7fd98..a3165cd 100644
> --- a/recipes-kernel/linux/linux-yocto_3.10.bbappend
> +++ b/recipes-kernel/linux/linux-yocto_3.10.bbappend
> @@ -17,3 +17,6 @@ KERNEL_FEATURES_append += "${@base_contains('DISTRO_FEATURES', 'aufs', ' feature
>  
>  # xen dom0 kernel support
>  SRC_URI += "${@base_contains('DISTRO_FEATURES', 'xen', ' file://xen.scc', '', d)}"
> +
> +# xen guest kernel support
> +SRC_URI += "${@base_contains('DISTRO_FEATURES', 'xen-guest', ' file://xen-guest.scc', '', d)}"
> diff --git a/recipes-kernel/linux/linux-yocto_3.4.bbappend b/recipes-kernel/linux/linux-yocto_3.4.bbappend
> index 448d57f..4d3a0d1 100644
> --- a/recipes-kernel/linux/linux-yocto_3.4.bbappend
> +++ b/recipes-kernel/linux/linux-yocto_3.4.bbappend
> @@ -14,3 +14,6 @@ module_autoload_kvm-intel = "kvm-intel"
>  
>  # xen dom0 kernel support
>  SRC_URI += "${@base_contains('DISTRO_FEATURES', 'xen', ' file://xen.scc', '', d)}"
> +
> +# xen guest kernel support
> +SRC_URI += "${@base_contains('DISTRO_FEATURES', 'xen-guest', ' file://xen-guest.scc', '', d)}"
> diff --git a/recipes-kernel/linux/linux-yocto_3.8.bbappend b/recipes-kernel/linux/linux-yocto_3.8.bbappend
> index cc7fd98..a3165cd 100644
> --- a/recipes-kernel/linux/linux-yocto_3.8.bbappend
> +++ b/recipes-kernel/linux/linux-yocto_3.8.bbappend
> @@ -17,3 +17,6 @@ KERNEL_FEATURES_append += "${@base_contains('DISTRO_FEATURES', 'aufs', ' feature
>  
>  # xen dom0 kernel support
>  SRC_URI += "${@base_contains('DISTRO_FEATURES', 'xen', ' file://xen.scc', '', d)}"
> +
> +# xen guest kernel support
> +SRC_URI += "${@base_contains('DISTRO_FEATURES', 'xen-guest', ' file://xen-guest.scc', '', d)}"
>