Re: Xen's Linux kernel config options V2

[David Vrabel <david.vrabel@citrix.com>]

On 16/12/14 16:21, Juergen Gross wrote:
> Hi,
> 
> This is a design proposal for a rework of the config options on the
> Linux kernel which are related to Xen.
> 
> The need to do so arose from the fact that it is currently not
> possible to build the Xen frontend drivers for a non-pvops kernel,
> e.g. to run them in a HVM-domain. There are more drawbacks in the
> current config options to which I'll come later.
> 
> Option                          Selects                 Depends
> ----------------------------------------------------------------------
> XEN
>   XEN_PV(x86)                   XEN_HAVE_PVMMU
>                                 PARAVIRT
>                                 PARAVIRT_CLOCK
>   XEN_PVH(x86)                  XEN_PVHVM
>                                 PARAVIRT
>                                 PARAVIRT_CLOCK
>   XEN_PVHVM                     PARAVIRT
>                                 PARAVIRT_CLOCK
>   XEN_BACKEND                   SWIOTLB_XEN(arm,arm64)  XEN_PV(x86) ||
>                                                         XEN_PVH(x86) ||
>                                                         XEN_PVHVM
>     XEN_BLKDEV_BACKEND
>     XEN_PCIDEV_BACKEND(x86)
>     XEN_SCSI_BACKEND
>     XEN_NETDEV_BACKEND
>   PCI_XEN(x86)                  SWIOTLB_XEN
>   XEN_DOM0                      XEN_BACKEND             XEN_PV(x86) ||
>                                 PCI_XEN(x86)            XEN_PVH(x86)
>     XEN_ACPI_HOTPLUG_MEMORY                             XEN_STUB
>     XEN_ACPI_HOTPLUG_CPU                                XEN_STUB
>     XEN_MCE_LOG(x86)
>   XEN_MAX_DOMAIN_MEMORY(x86)
>   XEN_SAVE_RESTORE(x86)
>   XEN_DEBUG_FS
>   XEN_WDT
>   XEN_BALLOON
>     XEN_SELFBALLOONING                                  XEN_TMEM
>     XEN_BALLOON_MEMORY_HOTPLUG
>     XEN_SCRUB_PAGES
>   XENFS                         XEN_PRIVCMD
>     XEN_COMPAT_XENFS
>   XEN_SYS_HYPERVISOR
>   XEN_DEV_EVTCHN
>   XEN_GNTDEV
>   XEN_GRANT_DEV_ALLOC
>   SWIOTLB_XEN
>   XEN_TMEM
>   XEN_PRIVCMD
>   XEN_STUB(x86_64)                                      BROKEN
>   XEN_ACPI_PROCESSOR(x86)
>   XEN_HAVE_PVMMU
>   XEN_EFI(x64)
>   XEN_XENBUS_FRONTEND
> XEN_FRONTEND                    XEN
>                                 XEN_XENBUS_FRONTEND
>   XEN_FBDEV_FRONTEND            INPUT_XEN_KBDDEV_FRONTEND
>   XEN_BLKDEV_FRONTEND
>   HVC_XEN_FRONTEND              HVC_XEN
>   TCG_XEN
>   XEN_PCIDEV_FRONTEND           PCI_XEN
>   XEN_SCSI_FRONTEND
>   INPUT_XEN_KBDDEV_FRONTEND
>   XEN_NETDEV_FRONTEND
>   XEN_PLATFORM_PCI

This looks fine to me.

David