Re: How come Linux kernel 3.10 does not have Xen configuration options any more?

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Fri, Jul 12, 2013 at 06:17:08PM +0800, Singapore Citizen Mr. Teo En Ming (Zhang Enming) wrote:
> Hi,
> 
> I have just downloaded Linux kernel 3.10. I am shocked to find out
> that Linux kernel 3.10 does not have Xen configuration options any
> more. Where did they all go?

You need to enable CONFIG_HYPERVISOR_GUEST.

> 
> Most of the following Linux kernel configuration options are not
> available any more:
> 
> 3 Configuring the kernel for dom0 support
> NOTE: Xen dom0 support depends on ACPI support. Make sure you enable
> ACPI support or you
> won't see Dom0 options at all.
> In addition to the config options above you also need to enable:
> CONFIG_X86_IO_APIC=y
> CONFIG_ACPI=y
> CONFIG_ACPI_PROCFS=y (optional)
> CONFIG_XEN_DOM0=y
> CONFIG_PCI_XEN=y
> CONFIG_XEN_DEV_EVTCHN=y
> CONFIG_XENFS=y
> CONFIG_XEN_COMPAT_XENFS=y
> CONFIG_XEN_SYS_HYPERVISOR=y
> CONFIG_XEN_GNTDEV=y
> CONFIG_XEN_BACKEND=y
> CONFIG_XEN_NETDEV_BACKEND=m
> CONFIG_XEN_BLKDEV_BACKEND=m
> CONFIG_XEN_PCIDEV_BACKEND=y
> CONFIG_XEN_PRIVILEGED_GUEST=y
> CONFIG_XEN_BALLOON=y
> CONFIG_XEN_SCRUB_PAGES=y
> CONFIG_XEN_DEV_EVTCHN=y
> CONFIG_XEN_GNTDEV=y
> 
> 4 Configuring the kernel for domU support
> 1. If building 32 bit kernel make sure you have CONFIG_X86_PAE
> enabled (which is set by
> selecting CONFIG_HIGHMEM64G)
> non-PAE mode doesn't work in 2.6.25, and has been dropped altogether
> from 2.6.26 and newer
> kernel versions.
> 2. Enable these core options (Processor type and features|
> Paravirtualized guest support]
> CONFIG_PARAVIRT=y
> CONFIG_XEN=y
> CONFIG_PARAVIRT_GUEST=y
> CONFIG_PARAVIRT_SPINLOCKS=y
> 3. And Xen pv console device support (Device Drivers|Character devices
> CONFIG_HVC_DRIVER=y
> CONFIG_HVC_XEN=y
> 4. And Xen disk and network support (Device Drivers|Block devices
> and Device Drivers|Network
> device support)
> CONFIG_XEN_FBDEV_FRONTEND=y
> CONFIG_XEN_BLKDEV_FRONTEND=y
> CONFIG_XEN_NETDEV_FRONTEND=y
> 5. And the rest (Device Drivers|Xen driver support)
> CONFIG_XEN_PCIDEV_FRONTEND=y
> CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y
> CONFIG_XEN_FBDEV_FRONTEND=y
> CONFIG_XEN_XENBUS_FRONTEND=y
> CONFIG_XEN_SAVE_RESTORE=y
> CONFIG_XEN_GRANT_DEV_ALLOC=m
> 6. And for tmem support:
> CONFIG_XEN_TMEM=y
> CONFIG_CLEANCACHE=y
> CONFIG_FRONTSWAP=y
> CONFIG_XEN_SELFBALLOONING=y
> 
> Please advise.
> 
> Thank you very much.
> 
> 
> -- 
> Yours sincerely,
> 
> Singapore Citizen Mr. Teo En Ming (Zhang Enming)
> 
> 
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