[PATCH 2/2] x86: make hyperv support optional

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---
 arch/x86/Kconfig                 | 7 +++++++
 arch/x86/kernel/cpu/Makefile     | 4 ++--
 arch/x86/kernel/cpu/hypervisor.c | 2 ++
 drivers/hv/Kconfig               | 2 +-
 4 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c227c1fa0091..60aab344d6ab 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -808,6 +808,13 @@ config VMWARE_GUEST
 	  This option enables several optimizations for running under the
 	  VMware hypervisor.
 
+config HYPERV_GUEST
+	bool "HyperV Guest support"
+	default y
+	help
+	  This option enables several optimizations for running under the
+	  HyperV hypervisor.
+
 config KVM_GUEST
 	bool "KVM Guest support (including kvmclock)"
 	depends on PARAVIRT
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index a615b0152bf0..5536b801cb44 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -51,9 +51,9 @@ obj-$(CONFIG_X86_CPU_RESCTRL)		+= resctrl/
 
 obj-$(CONFIG_X86_LOCAL_APIC)		+= perfctr-watchdog.o
 
-obj-$(CONFIG_HYPERVISOR_GUEST)		+= hypervisor.o mshyperv.o
+obj-$(CONFIG_HYPERVISOR_GUEST)		+= hypervisor.o
 obj-$(CONFIG_VMWARE_GUEST)		+= vmware.o
-
+obj-$(CONFIG_HYPERV_GUEST)		+= mshyperv.o
 obj-$(CONFIG_ACRN_GUEST)		+= acrn.o
 
 ifdef CONFIG_X86_FEATURE_NAMES
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index c0e770a224aa..32d6b2084d05 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++ b/arch/x86/kernel/cpu/hypervisor.c
@@ -37,7 +37,9 @@ static const __initconst struct hypervisor_x86 * const hypervisors[] =
 #ifdef CONFIG_VMWARE_GUEST
 	&x86_hyper_vmware,
 #endif
+#ifdef CONFIG_HYPERV_GUEST
 	&x86_hyper_ms_hyperv,
+#endif
 #ifdef CONFIG_KVM_GUEST
 	&x86_hyper_kvm,
 #endif
diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 79e5356a737a..7b3094c59a81 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -4,7 +4,7 @@ menu "Microsoft Hyper-V guest support"
 
 config HYPERV
 	tristate "Microsoft Hyper-V client drivers"
-	depends on X86 && ACPI && X86_LOCAL_APIC && HYPERVISOR_GUEST
+	depends on X86 && ACPI && X86_LOCAL_APIC && HYPERV_GUEST
 	select PARAVIRT
 	select X86_HV_CALLBACK_VECTOR
 	help
-- 
2.11.0




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