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Diffstat (limited to 'hw/ppc/spapr.c')
-rw-r--r--hw/ppc/spapr.c30
1 files changed, 27 insertions, 3 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 1908988dbc..6e8248d01e 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1019,15 +1019,39 @@ static int spapr_vga_init(PCIBus *pci_bus)
}
}
+static int spapr_post_load(void *opaque, int version_id)
+{
+ sPAPREnvironment *spapr = (sPAPREnvironment *)opaque;
+ int err = 0;
+
+ /* In earlier versions, there was no seperate qdev for the PAPR
+ * RTC, so the RTC offset was stored directly in sPAPREnvironment.
+ * So when migrating from those versions, poke the incoming offset
+ * value into the RTC device */
+ if (version_id < 3) {
+ err = spapr_rtc_import_offset(spapr->rtc, spapr->rtc_offset);
+ }
+
+ return err;
+}
+
+static bool version_before_3(void *opaque, int version_id)
+{
+ return version_id < 3;
+}
+
static const VMStateDescription vmstate_spapr = {
.name = "spapr",
- .version_id = 2,
+ .version_id = 3,
.minimum_version_id = 1,
+ .post_load = spapr_post_load,
.fields = (VMStateField[]) {
- VMSTATE_UNUSED(4), /* used to be @next_irq */
+ /* used to be @next_irq */
+ VMSTATE_UNUSED_BUFFER(version_before_3, 0, 4),
/* RTC offset */
- VMSTATE_UINT64(rtc_offset, sPAPREnvironment),
+ VMSTATE_UINT64_TEST(rtc_offset, sPAPREnvironment, version_before_3),
+
VMSTATE_PPC_TIMEBASE_V(tb, sPAPREnvironment, 2),
VMSTATE_END_OF_LIST()
},