diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 30e39be..419b0af 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -66,6 +66,7 @@
 
 #define MMIO_BASE_OFFSET 0x3e00000
 #define MMIO_SIZE 0x200000
+#define DC_PALETTE_ENTRIES (0x400 * 3)
 
 /* SM501 register definitions taken from "linux/include/linux/sm501-regs.h" */
 
@@ -492,7 +493,7 @@ typedef struct SM501State {
     uint32_t uart0_mcr;
     uint32_t uart0_scr;
 
-    uint8_t dc_palette[0x400 * 3];
+    uint8_t dc_palette[DC_PALETTE_ENTRIES];
 
     uint32_t dc_panel_control;
     uint32_t dc_panel_panning_control;
@@ -1603,6 +1604,78 @@ static void sm501_init(SM501State *s, DeviceState *dev,
     s->con = graphic_console_init(DEVICE(dev), 0, &sm501_ops, s);
 }
 
+static const VMStateDescription vmstate_sm501_state = {
+    .name = "sm501-state",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32(local_mem_size_index, SM501State),
+        VMSTATE_UINT32(system_control, SM501State),
+        VMSTATE_UINT32(misc_control, SM501State),
+        VMSTATE_UINT32(gpio_31_0_control, SM501State),
+        VMSTATE_UINT32(gpio_63_32_control, SM501State),
+        VMSTATE_UINT32(dram_control, SM501State),
+        VMSTATE_UINT32(arbitration_control, SM501State),
+        VMSTATE_UINT32(irq_mask, SM501State),
+        VMSTATE_UINT32(misc_timing, SM501State),
+        VMSTATE_UINT32(power_mode_control, SM501State),
+        VMSTATE_UINT32(uart0_ier, SM501State),
+        VMSTATE_UINT32(uart0_lcr, SM501State),
+        VMSTATE_UINT32(uart0_mcr, SM501State),
+        VMSTATE_UINT32(uart0_scr, SM501State),
+        VMSTATE_UINT8_ARRAY(dc_palette, SM501State, DC_PALETTE_ENTRIES),
+        VMSTATE_UINT32(dc_panel_control, SM501State),
+        VMSTATE_UINT32(dc_panel_panning_control, SM501State),
+        VMSTATE_UINT32(dc_panel_fb_addr, SM501State),
+        VMSTATE_UINT32(dc_panel_fb_offset, SM501State),
+        VMSTATE_UINT32(dc_panel_fb_width, SM501State),
+        VMSTATE_UINT32(dc_panel_fb_height, SM501State),
+        VMSTATE_UINT32(dc_panel_tl_location, SM501State),
+        VMSTATE_UINT32(dc_panel_br_location, SM501State),
+        VMSTATE_UINT32(dc_panel_h_total, SM501State),
+        VMSTATE_UINT32(dc_panel_h_sync, SM501State),
+        VMSTATE_UINT32(dc_panel_v_total, SM501State),
+        VMSTATE_UINT32(dc_panel_v_sync, SM501State),
+        VMSTATE_UINT32(dc_panel_hwc_addr, SM501State),
+        VMSTATE_UINT32(dc_panel_hwc_location, SM501State),
+        VMSTATE_UINT32(dc_panel_hwc_color_1_2, SM501State),
+        VMSTATE_UINT32(dc_panel_hwc_color_3, SM501State),
+        VMSTATE_UINT32(dc_video_control, SM501State),
+        VMSTATE_UINT32(dc_crt_control, SM501State),
+        VMSTATE_UINT32(dc_crt_fb_addr, SM501State),
+        VMSTATE_UINT32(dc_crt_fb_offset, SM501State),
+        VMSTATE_UINT32(dc_crt_h_total, SM501State),
+        VMSTATE_UINT32(dc_crt_h_sync, SM501State),
+        VMSTATE_UINT32(dc_crt_v_total, SM501State),
+        VMSTATE_UINT32(dc_crt_v_sync, SM501State),
+        VMSTATE_UINT32(dc_crt_hwc_addr, SM501State),
+        VMSTATE_UINT32(dc_crt_hwc_location, SM501State),
+        VMSTATE_UINT32(dc_crt_hwc_color_1_2, SM501State),
+        VMSTATE_UINT32(dc_crt_hwc_color_3, SM501State),
+        VMSTATE_UINT32(twoD_source, SM501State),
+        VMSTATE_UINT32(twoD_destination, SM501State),
+        VMSTATE_UINT32(twoD_dimension, SM501State),
+        VMSTATE_UINT32(twoD_control, SM501State),
+        VMSTATE_UINT32(twoD_pitch, SM501State),
+        VMSTATE_UINT32(twoD_foreground, SM501State),
+        VMSTATE_UINT32(twoD_background, SM501State),
+        VMSTATE_UINT32(twoD_stretch, SM501State),
+        VMSTATE_UINT32(twoD_color_compare, SM501State),
+        VMSTATE_UINT32(twoD_color_compare_mask, SM501State),
+        VMSTATE_UINT32(twoD_mask, SM501State),
+        VMSTATE_UINT32(twoD_clip_tl, SM501State),
+        VMSTATE_UINT32(twoD_clip_br, SM501State),
+        VMSTATE_UINT32(twoD_mono_pattern_low, SM501State),
+        VMSTATE_UINT32(twoD_mono_pattern_high, SM501State),
+        VMSTATE_UINT32(twoD_window_width, SM501State),
+        VMSTATE_UINT32(twoD_source_base, SM501State),
+        VMSTATE_UINT32(twoD_destination_base, SM501State),
+        VMSTATE_UINT32(twoD_alpha, SM501State),
+        VMSTATE_UINT32(twoD_wrap, SM501State),
+        VMSTATE_END_OF_LIST()
+     }
+};
+
 #define TYPE_SYSBUS_SM501 "sysbus-sm501"
 #define SYSBUS_SM501(obj) \
     OBJECT_CHECK(SM501SysBusState, (obj), TYPE_SYSBUS_SM501)
@@ -1657,6 +1730,17 @@ static void sm501_reset_sysbus(DeviceState *dev)
     sm501_reset(&s->state);
 }
 
+static const VMStateDescription vmstate_sm501_sysbus = {
+    .name = TYPE_SYSBUS_SM501,
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_STRUCT(state, SM501SysBusState, 1,
+                       vmstate_sm501_state, SM501State),
+        VMSTATE_END_OF_LIST()
+     }
+};
+
 static void sm501_sysbus_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -1666,6 +1750,7 @@ static void sm501_sysbus_class_init(ObjectClass *klass, void *data)
     dc->desc = "SM501 Multimedia Companion";
     dc->props = sm501_sysbus_properties;
     dc->reset = sm501_reset_sysbus;
+    dc->vmsd = &vmstate_sm501_sysbus;
     /* Note: pointer property "chr-state" may remain null, thus
      * no need for dc->cannot_instantiate_with_device_add_yet = true;
      */
@@ -1711,6 +1796,18 @@ static void sm501_reset_pci(DeviceState *dev)
     sm501_reset(&s->state);
 }
 
+static const VMStateDescription vmstate_sm501_pci = {
+    .name = TYPE_PCI_SM501,
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_PCI_DEVICE(parent_obj, SM501PCIState),
+        VMSTATE_STRUCT(state, SM501PCIState, 1,
+                       vmstate_sm501_state, SM501State),
+        VMSTATE_END_OF_LIST()
+     }
+};
+
 static void sm501_pci_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -1725,6 +1822,7 @@ static void sm501_pci_class_init(ObjectClass *klass, void *data)
     dc->props = sm501_pci_properties;
     dc->reset = sm501_reset_pci;
     dc->hotpluggable = false;
+    dc->vmsd = &vmstate_sm501_pci;
 }
 
 static const TypeInfo sm501_pci_info = {
