Commit 013a53f2 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Paul Mackerras
Browse files

powerpc: Ultravisor: Add PPC_UV config option 



CONFIG_PPC_UV adds support for ultravisor.

Signed-off-by: default avatarAnshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: default avatarBharata B Rao <bharata@linux.ibm.com>
Signed-off-by: default avatarRam Pai <linuxram@us.ibm.com>
[ Update config help and commit message ]
Signed-off-by: default avatarClaudio Carvalho <cclaudio@linux.ibm.com>
Reviewed-by: default avatarSukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@ozlabs.org>
parent 22945688

arch/powerpc/Kconfig

+17 −0
Original line number Diff line number Diff line
@@ -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

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