From: Anshuman Khandual <khand...@linux.vnet.ibm.com>
CONFIG_PPC_UV adds support for ultravisor.
Signed-off-by: Anshuman Khandual <khand...@linux.vnet.ibm.com>
Signed-off-by: Bharata B Rao <bhar...@linux.ibm.com>
Signed-off-by: Ram Pai <linux...@us.ibm.com>
[ Update config help and commit message ]
Signed-off-by: Claudio Carvalho <cclau...@linux.ibm.com>
Reviewed-by: Sukadev Bhattiprolu <suka...@linux.ibm.com>
---
arch/powerpc/Kconfig | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 3e56c9c2f16e..d7fef29b47c9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -451,6 +451,23 @@ 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
