PortioList: Store PortioList in device state

PortioList is an abstraction used for construction of MemoryRegionPortioList
from MemoryRegionPortio. It can be used later to unmap created memory regions.
It also requires proper cleanup because some of the memory inside is allocated
dynamically.

By moving PortioList ot device state we make it possible to cleanup later and
avoid leaking memory.

This change spans several target platforms.  The following testcases cover all
changed lines:
  qemu-system-ppc -M prep
  qemu-system-i386 -vga qxl
  qemu-system-i386 -M isapc -soundhw adlib -device ib700,id=watchdog0,bus=isa.0

Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

4 files changed, 11 insertions, 11 deletions

diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index e9c54d7399..7fb83e4eaf 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -2055,7 +2055,6 @@ static int qxl_init_primary(PCIDevice *dev)
 {
     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
     VGACommonState *vga = &qxl->vga;
-    PortioList *qxl_vga_port_list = g_new(PortioList, 1);
     int rc;
 
     qxl->id = 0;
@@ -2064,10 +2063,10 @@ static int qxl_init_primary(PCIDevice *dev)
     vga_common_init(vga, OBJECT(dev), true);
     vga_init(vga, OBJECT(dev),
              pci_address_space(dev), pci_address_space_io(dev), false);
-    portio_list_init(qxl_vga_port_list, OBJECT(dev), qxl_vga_portio_list,
+    portio_list_init(&qxl->vga_port_list, OBJECT(dev), qxl_vga_portio_list,
                      vga, "vga");
-    portio_list_set_flush_coalesced(qxl_vga_port_list);
-    portio_list_add(qxl_vga_port_list, pci_address_space_io(dev), 0x3b0);
+    portio_list_set_flush_coalesced(&qxl->vga_port_list);
+    portio_list_add(&qxl->vga_port_list, pci_address_space_io(dev), 0x3b0);
 
     vga->con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
     qemu_spice_display_init_common(&qxl->ssd);
diff --git a/hw/display/qxl.h b/hw/display/qxl.h
index c5de3d7075..412e346b68 100644
--- a/hw/display/qxl.h
+++ b/hw/display/qxl.h
@@ -32,6 +32,7 @@ enum qxl_mode {
 
 typedef struct PCIQXLDevice {
     PCIDevice          pci;
+    PortioList         vga_port_list;
     SimpleSpiceDisplay ssd;
     int                id;
     uint32_t           debug;
diff --git a/hw/display/vga.c b/hw/display/vga.c
index c4c3238d5f..8cd6afe83a 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -2355,8 +2355,6 @@ void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
 {
     MemoryRegion *vga_io_memory;
     const MemoryRegionPortio *vga_ports, *vbe_ports;
-    PortioList *vga_port_list = g_new(PortioList, 1);
-    PortioList *vbe_port_list = g_new(PortioList, 1);
 
     qemu_register_reset(vga_reset, s);
 
@@ -2371,13 +2369,13 @@ void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space,
                                         1);
     memory_region_set_coalescing(vga_io_memory);
     if (init_vga_ports) {
-        portio_list_init(vga_port_list, obj, vga_ports, s, "vga");
-        portio_list_set_flush_coalesced(vga_port_list);
-        portio_list_add(vga_port_list, address_space_io, 0x3b0);
+        portio_list_init(&s->vga_port_list, obj, vga_ports, s, "vga");
+        portio_list_set_flush_coalesced(&s->vga_port_list);
+        portio_list_add(&s->vga_port_list, address_space_io, 0x3b0);
     }
     if (vbe_ports) {
-        portio_list_init(vbe_port_list, obj, vbe_ports, s, "vbe");
-        portio_list_add(vbe_port_list, address_space_io, 0x1ce);
+        portio_list_init(&s->vbe_port_list, obj, vbe_ports, s, "vbe");
+        portio_list_add(&s->vbe_port_list, address_space_io, 0x1ce);
     }
 }
 
diff --git a/hw/display/vga_int.h b/hw/display/vga_int.h
index d42ac926e3..5320abdc07 100644
--- a/hw/display/vga_int.h
+++ b/hw/display/vga_int.h
@@ -124,6 +124,8 @@ typedef struct VGACommonState {
     void (*get_resolution)(struct VGACommonState *s,
                         int *pwidth,
                         int *pheight);
+    PortioList vga_port_list;
+    PortioList vbe_port_list;
     /* bochs vbe state */
     uint16_t vbe_index;
     uint16_t vbe_regs[VBE_DISPI_INDEX_NB];