From: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> CONFIG_PPC_UV adds support for ultravisor. Signed-off-by: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> Signed-off-by: Bharata B Rao <bharata@xxxxxxxxxxxxx> Signed-off-by: Ram Pai <linuxram@xxxxxxxxxx> [ Update config help and commit message ] Signed-off-by: Claudio Carvalho <cclaudio@xxxxxxxxxxxxx> Reviewed-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx> --- arch/powerpc/Kconfig | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index d8dcd8820369..044838794112 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -448,6 +448,23 @@ config PPC_TRANSACTIONAL_MEM help Support user-mode Transactional Memory on POWERPC. +config PPC_UV + bool "Ultravisor support" + depends on KVM_BOOK3S_HV_POSSIBLE + select ZONE_DEVICE + select DEV_PAGEMAP_OPS + select DEVICE_PRIVATE + select MEMORY_HOTPLUG + select MEMORY_HOTREMOVE + default n + help + This option paravirtualizes the kernel to run in POWER platforms that + supports the Protected Execution Facility (PEF). On such platforms, + the ultravisor firmware runs at a privilege level above the + hypervisor. + + If unsure, say "N". + config LD_HEAD_STUB_CATCH bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if EXPERT depends on PPC64 -- 2.21.0
