hw/xen/xen-pvh: Reduce included headers

Have "hw/xen/xen-pvh-common.h" include the bare minimal set
of headers. Adapt sources to avoid errors when refactoring
unrelated headers such:

    hw/i386/xen/xen-pvh.c: In function ‘xen_pvh_machine_class_init’:
    hw/i386/xen/xen-pvh.c:84:28: error: ‘TARGET_DEFAULT_CPU_TYPE’ undeclared (first use in this function)
       84 |     mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
          |                            ^~~~~~~~~~~~~~~~~~~~~~~
    hw/xen/xen-pvh-common.c: In function ‘xen_pvh_init’:
    hw/xen/xen-pvh-common.c:217:43: error: ‘MiB’ undeclared (first use in this function)
      217 |         if (s->cfg.pci_ecam.size != 256 * MiB) {
          |                                           ^~~
    hw/xen/xen-hvm-common.c:18:6: error: no previous prototype for ‘xen_mr_is_memory’ [-Werror=missing-prototypes]
       18 | bool xen_mr_is_memory(MemoryRegion *mr)
          |      ^~~~~~~~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-Id: <20250218162618.46167-5-philmd@linaro.org>

hw/i386/xen/xen-pvh.c

@@ -14,6 +14,7 @@
 #include "hw/xen/arch_hvm.h"
 #include <xen/hvm/hvm_info_table.h>
 #include "hw/xen/xen-pvh-common.h"
+#include "target/i386/cpu.h"
 
 #define TYPE_XEN_PVH_X86  MACHINE_TYPE_NAME("xenpvh")
 OBJECT_DECLARE_SIMPLE_TYPE(XenPVHx86State, XEN_PVH_X86)

hw/xen/xen-pvh-common.c

@@ -8,14 +8,13 @@
 
 #include "qemu/osdep.h"
 #include "qemu/error-report.h"
-#include "qapi/error.h"
+#include "qemu/units.h"
 #include "qapi/visitor.h"
 #include "hw/boards.h"
 #include "hw/irq.h"
-#include "hw/sysbus.h"
-#include "system/system.h"
 #include "system/tpm.h"
 #include "system/tpm_backend.h"
+#include "system/runstate.h"
 #include "hw/xen/xen-pvh-common.h"
 #include "trace.h"
 

include/hw/xen/xen-pvh-common.h

@@ -9,11 +9,11 @@
 #ifndef XEN_PVH_COMMON_H__
 #define XEN_PVH_COMMON_H__
 
-#include <assert.h>
-#include "hw/sysbus.h"
-#include "hw/hw.h"
-#include "hw/xen/xen-hvm-common.h"
+#include "exec/memory.h"
+#include "qom/object.h"
+#include "hw/boards.h"
 #include "hw/pci-host/gpex.h"
+#include "hw/xen/xen-hvm-common.h"
 
 #define TYPE_XEN_PVH_MACHINE MACHINE_TYPE_NAME("xen-pvh-base")
 OBJECT_DECLARE_TYPE(XenPVHMachineState, XenPVHMachineClass,