diff options
Diffstat (limited to 'arch/powerpc/kvm/Kconfig')
-rw-r--r-- | arch/powerpc/kvm/Kconfig | 13 |
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 | ||
69 | config KVM_BOOK3S_64_HV | 69 | config 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 | ||