linux/arch/x86/configs/xen.config

# global x86 required specific stuff
# On 32-bit HIGHMEM4G is not allowed
CONFIG_HIGHMEM64G=y
CONFIG_64BIT=y

# These enable us to allow some of the
# not so generic stuff below
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PCI=y
CONFIG_PCI_MSI=y
CONFIG_X86_MCE=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_CPU_FREQ=y

# x86 xen specific config options
CONFIG_XEN_PVH=y
CONFIG_XEN_SAVE_RESTORE=y
# CONFIG_XEN_DEBUG_FS is not set
CONFIG_XEN_MCE_LOG=y
CONFIG_XEN_ACPI_PROCESSOR=m
# x86 specific backend drivers
CONFIG_XEN_PCIDEV_BACKEND=m
# x86 specific frontend drivers
CONFIG_XEN_PCIDEV_FRONTEND=m
# depends on MEMORY_HOTPLUG, arm64 doesn't enable this yet,
# move to generic config if it ever does.
CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y