target/arm/kvm: Have kvm_arm_pmu_set_irq take a ARMCPU argument

Unify the "kvm_arm.h" API: All functions related to ARM vCPUs
take a ARMCPU* argument. Use the CPU() QOM cast macro When
calling the generic vCPU API from "sysemu/kvm.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Message-id: 20231123183518.64569-10-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/virt.c

@@ -1998,7 +1998,7 @@ static void virt_cpu_post_init(VirtMachineState *vms, MemoryRegion *sysmem)
             if (pmu) {
                 assert(arm_feature(&ARM_CPU(cpu)->env, ARM_FEATURE_PMU));
                 if (kvm_irqchip_in_kernel()) {
-                    kvm_arm_pmu_set_irq(cpu, VIRTUAL_PMU_IRQ);
+                    kvm_arm_pmu_set_irq(ARM_CPU(cpu), VIRTUAL_PMU_IRQ);
                 }
                 kvm_arm_pmu_init(ARM_CPU(cpu));
             }

target/arm/kvm.c

@@ -1725,18 +1725,18 @@ void kvm_arm_pmu_init(ARMCPU *cpu)
     }
 }
 
-void kvm_arm_pmu_set_irq(CPUState *cs, int irq)
+void kvm_arm_pmu_set_irq(ARMCPU *cpu, int irq)
 {
     struct kvm_device_attr attr = {
         .group = KVM_ARM_VCPU_PMU_V3_CTRL,
         .addr = (intptr_t)&irq,
         .attr = KVM_ARM_VCPU_PMU_V3_IRQ,
     };
 
-    if (!ARM_CPU(cs)->has_pmu) {
+    if (!cpu->has_pmu) {
         return;
     }
-    if (!kvm_arm_set_device_attr(ARM_CPU(cs), &attr, "PMU")) {
+    if (!kvm_arm_set_device_attr(cpu, &attr, "PMU")) {
         error_report("failed to set irq for PMU");
         abort();
     }

target/arm/kvm_arm.h

@@ -201,7 +201,7 @@ int kvm_arm_get_max_vm_ipa_size(MachineState *ms, bool *fixed_ipa);
 int kvm_arm_vgic_probe(void);
 
 void kvm_arm_pmu_init(ARMCPU *cpu);
-void kvm_arm_pmu_set_irq(CPUState *cs, int irq);
+void kvm_arm_pmu_set_irq(ARMCPU *cpu, int irq);
 
 /**
  * kvm_arm_pvtime_init:
@@ -258,7 +258,7 @@ static inline int kvm_arm_vgic_probe(void)
     g_assert_not_reached();
 }
 
-static inline void kvm_arm_pmu_set_irq(CPUState *cs, int irq)
+static inline void kvm_arm_pmu_set_irq(ARMCPU *cpu, int irq)
 {
     g_assert_not_reached();
 }