hw/xen/arch_hvm: Unify x86 and ARM variants

As each target declares the same prototypes, we can
use a single header, removing the TARGET_XXX uses.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <20250513171737.74386-1-philmd@linaro.org>

include/hw/arm/xen_arch_hvm.h

@@ -1,9 +0,0 @@
-#ifndef HW_XEN_ARCH_ARM_HVM_H
-#define HW_XEN_ARCH_ARM_HVM_H
-
-#include <xen/hvm/ioreq.h>
-void arch_handle_ioreq(XenIOState *state, ioreq_t *req);
-void arch_xen_set_memory(XenIOState *state,
-                         MemoryRegionSection *section,
-                         bool add);
-#endif

include/hw/i386/xen_arch_hvm.h

@@ -1,11 +0,0 @@
-#ifndef HW_XEN_ARCH_I386_HVM_H
-#define HW_XEN_ARCH_I386_HVM_H
-
-#include <xen/hvm/ioreq.h>
-#include "hw/xen/xen-hvm-common.h"
-
-void arch_handle_ioreq(XenIOState *state, ioreq_t *req);
-void arch_xen_set_memory(XenIOState *state,
-                         MemoryRegionSection *section,
-                         bool add);
-#endif

include/hw/xen/arch_hvm.h

@@ -1,5 +1,11 @@
-#if defined(TARGET_I386) || defined(TARGET_X86_64)
-#include "hw/i386/xen_arch_hvm.h"
-#elif defined(TARGET_ARM) || defined(TARGET_AARCH64)
-#include "hw/arm/xen_arch_hvm.h"
+#ifndef HW_XEN_ARCH_HVM_H
+#define HW_XEN_ARCH_HVM_H
+
+#include <xen/hvm/ioreq.h>
+#include "hw/xen/xen-hvm-common.h"
+
+void arch_handle_ioreq(XenIOState *state, ioreq_t *req);
+void arch_xen_set_memory(XenIOState *state,
+                         MemoryRegionSection *section,
+                         bool add);
 #endif