arm64: Add some definitions of kvm_para*

hulk inclusion
category: feature
bugzilla: 47727
CVE: NA

------------------------------

Currently, ARM does not support kvm_para* of KVM_GUEST. We provide
some definitions of kvm_para* functions, although it is only a
simple return.
Signed-off-by: NXiangyou Xie <xiexiangyou@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/include/asm/kvm_para.h

+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ARM64_KVM_PARA_H
+#define _ASM_ARM64_KVM_PARA_H
+
+#define KVM_HINTS_REALTIME      0
+
+static inline bool kvm_check_and_clear_guest_paused(void)
+{
+	return false;
+}
+
+static inline bool kvm_para_available(void)
+{
+	return false;
+}
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+	return 0;
+}
+
+static inline unsigned int kvm_arch_para_hints(void)
+{
+	return 0;
+}
+
+#endif /* _ASM_ARM64_KVM_PARA_H */