请问，不是说 3.1 的内核天然支持 XEN Dom0吗？ 那为什么我的系统中 /proc/xen 不存在，/sys/hypervisor 是空目录？
# cat /proc/version Linux version 3.1.0-1-amd64 (Debian 3.1.5-1) (b...@decadent.org.uk) (gcc version 4.6.2 (Debian 4.6.2-7) ) #1 SMP Sun Dec 11 20:36:41 UTC 2011 # cat /boot/config-3.1.0-1-amd64 | grep XEN CONFIG_XEN=y CONFIG_XEN_DOM0=y CONFIG_XEN_PRIVILEGED_GUEST=y CONFIG_XEN_PVHVM=y CONFIG_XEN_MAX_DOMAIN_MEMORY=128 CONFIG_XEN_SAVE_RESTORE=y # CONFIG_XEN_DEBUG_FS is not set # CONFIG_XEN_DEBUG is not set 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_XEN_WDT=m CONFIG_XEN_FBDEV_FRONTEND=y CONFIG_XEN_BALLOON=y # CONFIG_XEN_BALLOON_MEMORY_HOTPLUG is not set 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_XEN_PLATFORM_PCI=y CONFIG_SWIOTLB_XEN=y CONFIG_XEN_PCIDEV_BACKEND=m
