hw/misc/mps2-fpgaio: Fold counters subsection into main vmstate

We've already broken migration compatibility for all the MPS
boards, so we might as well take advantage of this to simplify
the vmstate for the FPGAIO device by folding the counters
subsection into the main vmstate description.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210219144617.4782-38-peter.maydell@linaro.org

diff --git a/hw/misc/mps2-fpgaio.c b/hw/misc/mps2-fpgaio.c
index f3db88d..72598c8 100644 (file)
--- a/hw/misc/mps2-fpgaio.c
+++ b/hw/misc/mps2-fpgaio.c
@@ -285,41 +285,21 @@ static void mps2_fpgaio_realize(DeviceState *dev, Error **errp)
     }
 }
 
-static bool mps2_fpgaio_counters_needed(void *opaque)
-{
-    /* Currently vmstate.c insists all subsections have a 'needed' function */
-    return true;
-}
-
-static const VMStateDescription mps2_fpgaio_counters_vmstate = {
-    .name = "mps2-fpgaio/counters",
+static const VMStateDescription mps2_fpgaio_vmstate = {
+    .name = "mps2-fpgaio",
     .version_id = 2,
     .minimum_version_id = 2,
-    .needed = mps2_fpgaio_counters_needed,
     .fields = (VMStateField[]) {
+        VMSTATE_UINT32(led0, MPS2FPGAIO),
+        VMSTATE_UINT32(prescale, MPS2FPGAIO),
+        VMSTATE_UINT32(misc, MPS2FPGAIO),
         VMSTATE_INT64(clk1hz_tick_offset, MPS2FPGAIO),
         VMSTATE_INT64(clk100hz_tick_offset, MPS2FPGAIO),
         VMSTATE_UINT32(counter, MPS2FPGAIO),
         VMSTATE_UINT32(pscntr, MPS2FPGAIO),
         VMSTATE_INT64(pscntr_sync_ticks, MPS2FPGAIO),
         VMSTATE_END_OF_LIST()
-    }
-};
-
-static const VMStateDescription mps2_fpgaio_vmstate = {
-    .name = "mps2-fpgaio",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT32(led0, MPS2FPGAIO),
-        VMSTATE_UINT32(prescale, MPS2FPGAIO),
-        VMSTATE_UINT32(misc, MPS2FPGAIO),
-        VMSTATE_END_OF_LIST()
     },
-    .subsections = (const VMStateDescription*[]) {
-        &mps2_fpgaio_counters_vmstate,
-        NULL
-    }
 };
 
 static Property mps2_fpgaio_properties[] = {