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CONFIG_KVM_GUEST: KVM Guest support

General informations

The Linux kernel configuration item CONFIG_KVM_GUEST has multiple definitions:

KVM Guest Kernel found in arch/mips/Kconfig

The configuration item CONFIG_KVM_GUEST:

Help text

Select this option if building a guest kernel for KVM (Trap & Emulate) mode

KVM Guest support (including kvmclock) found in arch/x86/Kconfig

The configuration item CONFIG_KVM_GUEST:

Help text

This option enables various optimizations for running under the KVM hypervisor. It includes a paravirtualized clock, so that instead of relying on a PIT (or probably other) emulation by the underlying device model, the host provides the guest with timing infrastructure such as time of day, and system time

KVM Guest support found in arch/powerpc/platforms/Kconfig

The configuration item CONFIG_KVM_GUEST:

Help text

This option enables various optimizations for running under the KVM hypervisor. Overhead for the kernel when not running inside KVM should be minimal.

In case of doubt, say Y

KVM Guest support found in arch/x86/Kconfig

The configuration item CONFIG_KVM_GUEST:

Help text

This option enables various optimizations for running under the KVM hypervisor.

Hardware

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