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authorSean Christopherson <seanjc@google.com>2021-11-11 02:07:36 +0000
committerPeter Zijlstra <peterz@infradead.org>2021-11-17 14:49:11 +0100
commitbe399d824b432a85f8df86b566d2e5994fdf58b0 (patch)
tree1a713857bd480daa2a99f0a5a32ad1ce7e67ecdf /include/kvm
parent7b517831a1c6aceb0821860edb9c7bc7d4f803a2 (diff)
KVM: arm64: Hide kvm_arm_pmu_available behind CONFIG_HW_PERF_EVENTS=y
Move the definition of kvm_arm_pmu_available to pmu-emul.c and, out of "necessity", hide it behind CONFIG_HW_PERF_EVENTS. Provide a stub for the key's wrapper, kvm_arm_support_pmu_v3(). Moving the key's definition out of perf.c will allow a future commit to delete perf.c entirely. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20211111020738.2512932-16-seanjc@google.com
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_pmu.h19
1 files changed, 12 insertions, 7 deletions
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h
index 90f21898aad8..f9ed4c171d7b 100644
--- a/include/kvm/arm_pmu.h
+++ b/include/kvm/arm_pmu.h
@@ -13,13 +13,6 @@
#define ARMV8_PMU_CYCLE_IDX (ARMV8_PMU_MAX_COUNTERS - 1)
#define ARMV8_PMU_MAX_COUNTER_PAIRS ((ARMV8_PMU_MAX_COUNTERS + 1) >> 1)
-DECLARE_STATIC_KEY_FALSE(kvm_arm_pmu_available);
-
-static __always_inline bool kvm_arm_support_pmu_v3(void)
-{
- return static_branch_likely(&kvm_arm_pmu_available);
-}
-
#ifdef CONFIG_HW_PERF_EVENTS
struct kvm_pmc {
@@ -36,6 +29,13 @@ struct kvm_pmu {
struct irq_work overflow_work;
};
+DECLARE_STATIC_KEY_FALSE(kvm_arm_pmu_available);
+
+static __always_inline bool kvm_arm_support_pmu_v3(void)
+{
+ return static_branch_likely(&kvm_arm_pmu_available);
+}
+
#define kvm_arm_pmu_irq_initialized(v) ((v)->arch.pmu.irq_num >= VGIC_NR_SGIS)
u64 kvm_pmu_get_counter_value(struct kvm_vcpu *vcpu, u64 select_idx);
void kvm_pmu_set_counter_value(struct kvm_vcpu *vcpu, u64 select_idx, u64 val);
@@ -65,6 +65,11 @@ int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu);
struct kvm_pmu {
};
+static inline bool kvm_arm_support_pmu_v3(void)
+{
+ return false;
+}
+
#define kvm_arm_pmu_irq_initialized(v) (false)
static inline u64 kvm_pmu_get_counter_value(struct kvm_vcpu *vcpu,
u64 select_idx)