summaryrefslogtreecommitdiff
path: root/arch/powerpc/Kconfig
diff options
context:
space:
mode:
authorAnshuman Khandual <khandual@linux.vnet.ibm.com>2019-11-25 08:36:31 +0530
committerPaul Mackerras <paulus@ozlabs.org>2019-11-28 17:02:40 +1100
commit013a53f2d25a9fa9b9e1f70f5baa3f56e3454052 (patch)
tree9125c4ab393c1dbbdf50b3d1cd9172b9fd668de4 /arch/powerpc/Kconfig
parent22945688acd4d0ec2620b0670a53110401ed9c59 (diff)
powerpc: Ultravisor: Add PPC_UV config option
CONFIG_PPC_UV adds support for ultravisor. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Bharata B Rao <bharata@linux.ibm.com> Signed-off-by: Ram Pai <linuxram@us.ibm.com> [ Update config help and commit message ] Signed-off-by: Claudio Carvalho <cclaudio@linux.ibm.com> Reviewed-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
-rw-r--r--arch/powerpc/Kconfig17
1 files changed, 17 insertions, 0 deletions
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