[Xen-users] Minimum kernel.config requirements for domU?

["Rustedt, Florian" <Florian.Rustedt@xxxxxxxxxxx>]

Hello list,

What are the absolut minimum requirements for a domU selfmade paravirtualized 
kernel?

I am asking because i want to build a domU kernel w/o any additional features, 
just able to directly boot into the provided blockdevice...

All tries until now didn't boot completely (stops after "freeing memory"), so i 
must have missed something i don't know? What about IDE, scsi, sata, pata, 
network-devices, serial, framebuffer, etc..?

AFAIK, i need to enable following flags:
- The root-filesystem
- CONFIG_X86_SMP if wanted
- CONFIG_X86_64 if dom0 supports it
- CONFIG_x86_64_SMP if dom0 supports it
- CONFIG_X86_XEN or CONFIG_X86_64_XEN
- X86_XEN_GENAPIC
- CONFIG_XEN_PCIDEV_FRONTEND
- CONFIG_XEN
- CONFIG_XEN_UNPRIVILEGED_GUEST
- CONFIG_XEN_PRIVCMD
- CONFIG_XEN_XENBUS_DEV
- CONFIG_XEN_BLKDEV_FRONTEND
- CONFIG_XEN_NETDEV_FRONTEND
- CONFIG_XEN_FRAMEBUFFER
- CONFIG_XEN_KEYBOARD
- CONFIG_XEN_DISABLE_SERIAL
- CONFIG_XEN_SYSFS
- CONFIG_XEN_COMPAT_030004_AND_LATER=y
- CONFIG_XEN_COMPAT=0x030004
- CONFIG_HAVE_IRQ_IGNORE_UNHANDLED=y
- CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
- CONFIG_IRQ_PER_CPU=y
- CONFIG_NO_IDLE_HZ=y
- CONFIG_XEN_SMPBOOT=y
- CONFIG_XEN_DEVMEM=y
- CONFIG_XEN_BALLOON=y
- CONFIG_XEN_SCRUB_PAGES=y

What else ist absolutely needed for a working domU boot?

Kind regards, Florian
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