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| author | Anshuman Khandual <khandual@linux.vnet.ibm.com> | 2019-11-25 08:36:31 +0530 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2019-11-28 17:02:40 +1100 |
| commit | 013a53f2d25a9fa9b9e1f70f5baa3f56e3454052 (patch) | |
| tree | 9125c4ab393c1dbbdf50b3d1cd9172b9fd668de4 /arch/powerpc | |
| parent | 22945688acd4d0ec2620b0670a53110401ed9c59 (diff) | |
| download | linux-013a53f2d25a9fa9b9e1f70f5baa3f56e3454052.tar.bz2 | |
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')
| -rw-r--r-- | arch/powerpc/Kconfig | 17 |
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 |