[PATCH v9 8/8] KVM: PPC: Ultravisor: Add PPC_UV config option
From: Bharata B Rao <hidden>
Date: 2019-09-25 05:07:37
Also in:
linux-mm
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
From: Anshuman Khandual <redacted> CONFIG_PPC_UV adds support for ultravisor. Signed-off-by: Anshuman Khandual <redacted> Signed-off-by: Bharata B Rao <redacted> Signed-off-by: Ram Pai <redacted> [ Update config help and commit message ] Signed-off-by: Claudio Carvalho <redacted> Reviewed-by: Sukadev Bhattiprolu <redacted> --- arch/powerpc/Kconfig | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d8dcd8820369..044838794112 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -448,6 +448,23 @@ 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