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[10/13] KVM: PPC: Ultravisor: Add PPC_KVM_UV config option

Message ID 1548172784-27414-11-git-send-email-linuxram@us.ibm.com
State Changes Requested
Headers show
Series KVM: PPC: Paravirtualize KVM to support Ultravisor | expand

Commit Message

Ram Pai Jan. 22, 2019, 3:59 p.m. UTC 
From: Anshuman Khandual <khandual@linux.vnet.ibm.com>

CONFIG_PPC_KVM_UV enables 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>
---
 arch/powerpc/Kconfig | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
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Patch

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2890d36..8c03857 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -447,6 +447,24 @@  config PPC_TRANSACTIONAL_MEM
        ---help---
          Support user-mode Transactional Memory on POWERPC.
 
+config PPC_KVM_UV
+	bool "KVM support for Ultravisor on POWER"
+	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
+	 Paravirtualize KVM. There are certain POWER platforms
+	 which support Protected Execution Facility to enable Secure Virtual Machines.
+
+	 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