On 2019-07-09 05:25, Bharata B Rao wrote:
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: Janani Janakiraman <janani@xxxxxxxxxxxxx>
---
arch/powerpc/Kconfig | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index f0e5b38d52e8..20c6c213d2be 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -440,6 +440,26 @@ 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 HMM_MIRROR
+ select HMM
+ select ZONE_DEVICE
+ select MIGRATE_VMA_HELPER
+ 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). In 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
