[PATCH v4 3/7] KVM: x86: Move enable_pml variable to common x86 code

[Nikunj A Dadhania <nikunj@amd.com>]

Move the enable_pml module parameter from VMX-specific code to common x86
KVM code. This allows both VMX and SVM implementations to access the same
PML enable/disable control.

No functional change, just code reorganization to support shared PML
infrastructure.

Suggested-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Nikunj A Dadhania <nikunj@amd.com>
---
 arch/x86/include/asm/kvm_host.h | 1 +
 arch/x86/kvm/vmx/vmx.c          | 1 -
 arch/x86/kvm/x86.c              | 3 +++
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 7e5dceb4530e..73b16cecc06d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1991,6 +1991,7 @@ extern bool __read_mostly allow_smaller_maxphyaddr;
 extern bool __read_mostly enable_apicv;
 extern bool __read_mostly enable_ipiv;
 extern bool __read_mostly enable_device_posted_irqs;
+extern bool __read_mostly enable_pml;
 extern struct kvm_x86_ops kvm_x86_ops;
 
 #define kvm_x86_call(func) static_call(kvm_x86_##func)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index aa1ba8db6392..81216deb3959 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -127,7 +127,6 @@ module_param(enable_device_posted_irqs, bool, 0444);
 static bool __read_mostly nested = 1;
 module_param(nested, bool, 0444);
 
-bool __read_mostly enable_pml = 1;
 module_param_named(pml, enable_pml, bool, 0444);
 
 static bool __read_mostly error_on_inconsistent_vmcs_config = true;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index be8483d20fbc..2b23d7721444 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -241,6 +241,9 @@ EXPORT_SYMBOL_FOR_KVM_INTERNAL(enable_ipiv);
 bool __read_mostly enable_device_posted_irqs = true;
 EXPORT_SYMBOL_FOR_KVM_INTERNAL(enable_device_posted_irqs);
 
+bool __read_mostly enable_pml = true;
+EXPORT_SYMBOL_GPL(enable_pml);
+
 const struct _kvm_stats_desc kvm_vm_stats_desc[] = {
 	KVM_GENERIC_VM_STATS(),
 	STATS_DESC_COUNTER(VM, mmu_shadow_zapped),
-- 
2.48.1