xen/arm: Move VABORT_GEN_BY_GUEST to traps.h and turned into inline

The macro VABORT_GEN_BY_GUEST is only used by the trap code. So move it
to trap.h.

While moving the code, convert is to a static inline to allow typecheck.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Andrii Anisov <andrii_anisov@epam.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

xen/include/asm-arm/processor.h

@@ -684,16 +684,6 @@ void do_trap_guest_serror(struct cpu_user_regs *regs);
 
 register_t get_default_hcr_flags(void);
 
-/* Functions for pending virtual abort checking window. */
-void abort_guest_exit_start(void);
-void abort_guest_exit_end(void);
-
-#define VABORT_GEN_BY_GUEST(r)  \
-( \
-    ( (unsigned long)abort_guest_exit_start == (r)->pc ) || \
-    ( (unsigned long)abort_guest_exit_end == (r)->pc ) \
-)
-
 /*
  * Synchronize SError unless the feature is selected.
  * This is relying on the SErrors are currently unmasked.

xen/include/asm-arm/traps.h

@@ -45,6 +45,16 @@ void do_trap_hvc_smccc(struct cpu_user_regs *regs);
 
 int do_bug_frame(const struct cpu_user_regs *regs, vaddr_t pc);
 
+/* Functions for pending virtual abort checking window. */
+void abort_guest_exit_start(void);
+void abort_guest_exit_end(void);
+
+static inline bool VABORT_GEN_BY_GUEST(const struct cpu_user_regs *regs)
+{
+    return ((unsigned long)abort_guest_exit_start == regs->pc) ||
+        (unsigned long)abort_guest_exit_end == regs->pc;
+}
+
 #endif /* __ASM_ARM_TRAPS__ */
 /*
  * Local variables: