On 12/2/20 1:19 PM, Enrico Weigelt, metux IT consult wrote: > Make it possible to opt-out from Hyper-V support, for minimized kernels > that never will by run under Hyper-V. (eg. high-density virtualization > or embedded systems) > > Average distro kernel will leave it on, therefore default to y. > > Signed-off-by: Enrico Weigelt <info@xxxxxxxxx> > --- > arch/x86/Kconfig | 11 +++++++++++ > arch/x86/kernel/cpu/Makefile | 4 ++-- > arch/x86/kernel/cpu/hypervisor.c | 2 ++ > drivers/hv/Kconfig | 2 +- > 4 files changed, 16 insertions(+), 3 deletions(-) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index eff12460cb3c..57d20591d6ee 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -812,6 +812,17 @@ config VMWARE_GUEST > density virtualization or embedded systems running (para)virtualized > workloads. > > +config HYPERV_GUEST > + bool "Hyper-V Guest support" > + default y > + help > + This option enables several optimizations for running under the > + Hyper-V hypervisor. > + > + Disabling it saves a few kb, for stripped down kernels eg. in high kB, e.g. > + density virtualization or embedded systems running (para)virtualized > + workloads. > + > config KVM_GUEST > bool "KVM Guest support (including kvmclock)" > depends on PARAVIRT -- ~Randy
