[PATCH v11 15/23] KVM: selftests: Add library helpers for clock and TSC-offset ioctls

[David Woodhouse <dwmw2@xxxxxxxxxxxxx>]

From: David Woodhouse <dwmw@xxxxxxxxxxxx>

Add wrappers for KVM_[GS]ET_CLOCK_GUEST, the KVM_VCPU_TSC_OFFSET device
attribute and KVM_[GS]ET_CLOCK to the x86 library header, so that the
KVM clock selftests don't each open-code the same ioctl invocations.

Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
---
 .../selftests/kvm/include/x86/processor.h     | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/tools/testing/selftests/kvm/include/x86/processor.h 
b/tools/testing/selftests/kvm/include/x86/processor.h
index 5898a277a2e0..4062bdb32716 100644
--- a/tools/testing/selftests/kvm/include/x86/processor.h
+++ b/tools/testing/selftests/kvm/include/x86/processor.h
@@ -12,6 +12,7 @@
 
 #include <asm/msr-index.h>
 #include <asm/prctl.h>
+#include <asm/pvclock-abi.h>
 
 #include <linux/kvm_para.h>
 #include <linux/stringify.h>
@@ -1029,6 +1030,55 @@ static inline void vcpu_xcrs_set(struct kvm_vcpu *vcpu, 
struct kvm_xcrs *xcrs)
        vcpu_ioctl(vcpu, KVM_SET_XCRS, xcrs);
 }
 
+static inline int __vcpu_get_clock_guest(struct kvm_vcpu *vcpu,
+                                        struct pvclock_vcpu_time_info *pvti)
+{
+       return __vcpu_ioctl(vcpu, KVM_GET_CLOCK_GUEST, pvti);
+}
+
+static inline void vcpu_get_clock_guest(struct kvm_vcpu *vcpu,
+                                       struct pvclock_vcpu_time_info *pvti)
+{
+       vcpu_ioctl(vcpu, KVM_GET_CLOCK_GUEST, pvti);
+}
+
+static inline int __vcpu_set_clock_guest(struct kvm_vcpu *vcpu,
+                                        struct pvclock_vcpu_time_info *pvti)
+{
+       return __vcpu_ioctl(vcpu, KVM_SET_CLOCK_GUEST, pvti);
+}
+
+static inline void vcpu_set_clock_guest(struct kvm_vcpu *vcpu,
+                                       struct pvclock_vcpu_time_info *pvti)
+{
+       vcpu_ioctl(vcpu, KVM_SET_CLOCK_GUEST, pvti);
+}
+
+static inline u64 vcpu_get_tsc_offset(struct kvm_vcpu *vcpu)
+{
+       u64 offset;
+
+       vcpu_device_attr_get(vcpu, KVM_VCPU_TSC_CTRL, KVM_VCPU_TSC_OFFSET,
+                            &offset);
+       return offset;
+}
+
+static inline void vcpu_set_tsc_offset(struct kvm_vcpu *vcpu, u64 offset)
+{
+       vcpu_device_attr_set(vcpu, KVM_VCPU_TSC_CTRL, KVM_VCPU_TSC_OFFSET,
+                            &offset);
+}
+
+static inline void vm_get_clock(struct kvm_vm *vm, struct kvm_clock_data *data)
+{
+       vm_ioctl(vm, KVM_GET_CLOCK, data);
+}
+
+static inline void vm_set_clock(struct kvm_vm *vm, struct kvm_clock_data *data)
+{
+       vm_ioctl(vm, KVM_SET_CLOCK, data);
+}
+
 const struct kvm_cpuid_entry2 *get_cpuid_entry(const struct kvm_cpuid2 *cpuid,
                                               u32 function, u32 index);
 const struct kvm_cpuid2 *kvm_get_supported_cpuid(void);
-- 
2.43.0