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-rw-r--r--arch/powerpc/kvm/Kconfig13
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 5d9b78ebbaa6..eeb42e06f2d7 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -67,23 +67,20 @@ config KVM_BOOK3S_64
67 If unsure, say N. 67 If unsure, say N.
68 68
69config KVM_BOOK3S_64_HV 69config KVM_BOOK3S_64_HV
70 bool "KVM support for POWER7 using hypervisor mode in host" 70 bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
71 depends on KVM_BOOK3S_64 71 depends on KVM_BOOK3S_64
72 ---help--- 72 ---help---
73 Support running unmodified book3s_64 guest kernels in 73 Support running unmodified book3s_64 guest kernels in
74 virtual machines on POWER7 processors that have hypervisor 74 virtual machines on POWER7 and PPC970 processors that have
75 mode available to the host. 75 hypervisor mode available to the host.
76 76
77 If you say Y here, KVM will use the hardware virtualization 77 If you say Y here, KVM will use the hardware virtualization
78 facilities of POWER7 (and later) processors, meaning that 78 facilities of POWER7 (and later) processors, meaning that
79 guest operating systems will run at full hardware speed 79 guest operating systems will run at full hardware speed
80 using supervisor and user modes. However, this also means 80 using supervisor and user modes. However, this also means
81 that KVM is not usable under PowerVM (pHyp), is only usable 81 that KVM is not usable under PowerVM (pHyp), is only usable
82 on POWER7 (or later) processors, and can only emulate 82 on POWER7 (or later) processors and PPC970-family processors,
83 POWER5+, POWER6 and POWER7 processors. 83 and cannot emulate a different processor from the host processor.
84
85 This module provides access to the hardware capabilities through
86 a character device node named /dev/kvm.
87 84
88 If unsure, say N. 85 If unsure, say N.
89 86