hv: multi-arch reconstruct spinlock library

Extract common interface to include/lib/spinlock.h, and invoke the
variant implementation of arch.
Refine assemble macro code in case that ASSEMBLER defined.

Tracked-On: #8803
Signed-off-by: Haoyu Tang <haoyu.tang@intel.com>
Reviewed-by: Yifan Liu  <yifan1.liu@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>

hypervisor/include/lib/spinlock.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2025 Intel Corporation.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SPINLOCK_H
+#define SPINLOCK_H
+
+#ifndef ASSEMBLER
+#include <types.h>
+#include <rtl.h>
+#include <asm/cpu.h>
+#include <asm/lib/spinlock.h>
+
+/* The common spinlock type */
+typedef arch_spinlock_t spinlock_t;
+
+/* The mandatory functions should be implemented by arch spinlock library */
+static inline void arch_spinlock_obtain(arch_spinlock_t *lock);
+static inline void arch_spinlock_release(arch_spinlock_t *lock);
+
+/* Function prototypes */
+static inline void spinlock_init(spinlock_t *lock)
+{
+	(void)memset(lock, 0U, sizeof(spinlock_t));
+}
+
+static inline void spinlock_irqsave_obtain(spinlock_t *lock, uint64_t * flags)
+{
+	CPU_INT_ALL_DISABLE(flags);
+	arch_spinlock_obtain(lock);
+}
+
+static inline void spinlock_irqrestore_release(spinlock_t *lock, uint64_t flags)
+{
+	arch_spinlock_release(lock);
+	CPU_INT_ALL_RESTORE(flags);
+}
+
+static inline void spinlock_obtain(spinlock_t *lock)
+{
+    return arch_spinlock_obtain(lock);
+}
+
+static inline void spinlock_release(spinlock_t *lock)
+{
+    return arch_spinlock_release(lock);
+}
+
+#else /* ASSEMBLER */
+#include <asm/lib/spinlock.h>
+#define spinlock_obtain arch_spinlock_obtain
+#define spinlock_release arch_spinlock_release
+#endif /* ASSEMBLER */
+
+#endif /* SPINLOCK_H */