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charset="utf-8" From: Caleb Schlossin The PNV LPC model needs snapshot/migration support. Added a VMSTATE descriptor to save model data and an associated post_load() method. Snapshot support added for Power8, Power9, and Power10. Signed-off-by: Michael Kowal Reviewed-by: Michael Kowal Reviewed-by: Aditya Gupta Reviewed-by: Chalapathi V Signed-off-by: Caleb Schlossin Link: https://lore.kernel.org/qemu-devel/20260105160138.3242709-2-calebs@li= nux.ibm.com Signed-off-by: Harsh Prateek Bora --- hw/ppc/pnv_lpc.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c index 3b65c12316..d1357dd359 100644 --- a/hw/ppc/pnv_lpc.c +++ b/hw/ppc/pnv_lpc.c @@ -30,6 +30,7 @@ #include "hw/ppc/pnv_lpc.h" #include "hw/ppc/pnv_xscom.h" #include "hw/ppc/fdt.h" +#include "migration/vmstate.h" =20 #include =20 @@ -696,6 +697,43 @@ static const MemoryRegionOps opb_master_ops =3D { }, }; =20 +static int vmstate_pnv_lpc_post_load(void *opaque, int version_id) +{ + PnvLpcController *lpc =3D PNV_LPC(opaque); + + memory_region_set_alias_offset(&lpc->opb_isa_fw, + lpc->lpc_hc_fw_seg_idsel * LPC_FW_OPB_S= IZE); + pnv_lpc_eval_serirq_routes(lpc); + + pnv_lpc_eval_irqs(lpc); + return 0; +} + +static const VMStateDescription vmstate_pnv_lpc =3D { + .name =3D TYPE_PNV_LPC, + .version_id =3D 1, + .minimum_version_id =3D 1, + .post_load =3D vmstate_pnv_lpc_post_load, + .fields =3D (const VMStateField[]) { + VMSTATE_UINT64(eccb_stat_reg, PnvLpcController), + VMSTATE_UINT32(eccb_data_reg, PnvLpcController), + VMSTATE_UINT32(opb_irq_route0, PnvLpcController), + VMSTATE_UINT32(opb_irq_route1, PnvLpcController), + VMSTATE_UINT32(opb_irq_stat, PnvLpcController), + VMSTATE_UINT32(opb_irq_mask, PnvLpcController), + VMSTATE_UINT32(opb_irq_pol, PnvLpcController), + VMSTATE_UINT32(opb_irq_input, PnvLpcController), + VMSTATE_UINT32(lpc_hc_irq_inputs, PnvLpcController), + VMSTATE_UINT32(lpc_hc_fw_seg_idsel, PnvLpcController), + VMSTATE_UINT32(lpc_hc_irqser_ctrl, PnvLpcController), + VMSTATE_UINT32(lpc_hc_irqmask, PnvLpcController), + VMSTATE_UINT32(lpc_hc_irqstat, PnvLpcController), + VMSTATE_UINT32(lpc_hc_error_addr, PnvLpcController), + VMSTATE_UINT32(lpc_hc_fw_rd_acc_size, PnvLpcController), + VMSTATE_END_OF_LIST() + } +}; + static void pnv_lpc_power8_realize(DeviceState *dev, Error **errp) { PnvLpcController *lpc =3D PNV_LPC(dev); @@ -721,6 +759,7 @@ static void pnv_lpc_power8_class_init(ObjectClass *klas= s, const void *data) PnvLpcClass *plc =3D PNV_LPC_CLASS(klass); =20 dc->desc =3D "PowerNV LPC Controller POWER8"; + dc->vmsd =3D &vmstate_pnv_lpc; =20 xdc->dt_xscom =3D pnv_lpc_dt_xscom; =20 @@ -766,6 +805,7 @@ static void pnv_lpc_power9_class_init(ObjectClass *klas= s, const void *data) PnvLpcClass *plc =3D PNV_LPC_CLASS(klass); =20 dc->desc =3D "PowerNV LPC Controller POWER9"; + dc->vmsd =3D &vmstate_pnv_lpc; =20 device_class_set_parent_realize(dc, pnv_lpc_power9_realize, &plc->parent_realize); @@ -782,6 +822,7 @@ static void pnv_lpc_power10_class_init(ObjectClass *kla= ss, const void *data) DeviceClass *dc =3D DEVICE_CLASS(klass); =20 dc->desc =3D "PowerNV LPC Controller POWER10"; + dc->vmsd =3D &vmstate_pnv_lpc; } =20 static const TypeInfo pnv_lpc_power10_info =3D { --=20 2.52.0