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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>
alistair/sunxi64-5.5-dsi
Anshuman Khandual 2019-11-25 08:36:31 +05:30 committed by Paul Mackerras
parent 22945688ac
commit 013a53f2d2
1 changed files with 17 additions and 0 deletions
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arch/powerpc/Kconfig
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@ -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