KVM: disable halt_poll_ns as default for s390x
We observed some performance degradation on s390x with dynamic halt polling. Until we can provide a proper fix, let's enable halt_poll_ns as default only for supported architectures. Architectures are now free to set their own halt_poll_ns default value. Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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- arch/arm/include/asm/kvm_host.h 1 addition, 0 deletionsarch/arm/include/asm/kvm_host.h
- arch/arm64/include/asm/kvm_host.h 1 addition, 0 deletionsarch/arm64/include/asm/kvm_host.h
- arch/mips/include/asm/kvm_host.h 1 addition, 0 deletionsarch/mips/include/asm/kvm_host.h
- arch/powerpc/include/asm/kvm_host.h 1 addition, 0 deletionsarch/powerpc/include/asm/kvm_host.h
- arch/s390/include/asm/kvm_host.h 1 addition, 0 deletionsarch/s390/include/asm/kvm_host.h
- arch/x86/include/asm/kvm_host.h 1 addition, 0 deletionsarch/x86/include/asm/kvm_host.h
- virt/kvm/kvm_main.c 2 additions, 2 deletionsvirt/kvm/kvm_main.c
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