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CONFIG_KVM_BOOK3S_64_HV: KVM support for POWER7 and PPC970 using hypervisor mode in host

General informations

The Linux kernel configuration item CONFIG_KVM_BOOK3S_64_HV has multiple definitions:

KVM support for POWER7 and PPC970 using hypervisor mode in host found in arch/powerpc/kvm/Kconfig

The configuration item CONFIG_KVM_BOOK3S_64_HV:

Help text

Support running unmodified book3s_64 guest kernels in virtual machines on POWER7 and PPC970 processors that have hypervisor mode available to the host.

If you say Y here, KVM will use the hardware virtualization facilities of POWER7 (and later) processors, meaning that guest operating systems will run at full hardware speed using supervisor and user modes. However, this also means that KVM is not usable under PowerVM (pHyp), is only usable on POWER7 (or later) processors and PPC970-family processors, and cannot emulate a different processor from the host processor.

If unsure, say N.

KVM support for POWER7 and PPC970 using hypervisor mode in host found in arch/powerpc/kvm/Kconfig

The configuration item CONFIG_KVM_BOOK3S_64_HV:

Help text

Support running unmodified book3s_64 guest kernels in virtual machines on POWER7 and PPC970 processors that have hypervisor mode available to the host.

If you say Y here, KVM will use the hardware virtualization facilities of POWER7 (and later) processors, meaning that guest operating systems will run at full hardware speed using supervisor and user modes. However, this also means that KVM is not usable under PowerVM (pHyp), is only usable on POWER7 (or later) processors and PPC970-family processors, and cannot emulate a different processor from the host processor.

If unsure, say N.

Hardware

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