Re: [PATCH 12/14] ppc/pnv: Remove "system-memory" property for he PHB4 PEC model

[Frederic Barrat <fbarrat@linux.ibm.com>]

On 02/12/2021 15:42, Cédric Le Goater wrote:
> This is not useful and will be in the way for support of user created
> PHB4 devices.
> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---


I doubt I see all the implications here, but it doesn't look wrong to 
me, so:
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>

   Fred


>   hw/pci-host/pnv_phb4_pec.c | 6 +-----
>   hw/ppc/pnv.c               | 2 --
>   2 files changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/hw/pci-host/pnv_phb4_pec.c b/hw/pci-host/pnv_phb4_pec.c
> index a7dd4173d598..dfed2af0f7df 100644
> --- a/hw/pci-host/pnv_phb4_pec.c
> +++ b/hw/pci-host/pnv_phb4_pec.c
> @@ -124,7 +124,7 @@ static uint64_t pnv_pec_stk_nest_xscom_read(void *opaque, hwaddr addr,
>   static void pnv_pec_stk_update_map(PnvPhb4PecStack *stack)
>   {
>       PnvPhb4PecState *pec = stack->pec;
> -    MemoryRegion *sysmem = pec->system_memory;
> +    MemoryRegion *sysmem = get_system_memory();
>       uint64_t bar_en = stack->nest_regs[PEC_NEST_STK_BAR_EN];
>       uint64_t bar, mask, size;
>       char name[64];
> @@ -394,8 +394,6 @@ static void pnv_pec_realize(DeviceState *dev, Error **errp)
>       char name[64];
>       int i;
>   
> -    assert(pec->system_memory);
> -
>       if (pec->index >= PNV_CHIP_GET_CLASS(pec->chip)->num_pecs) {
>           error_setg(errp, "invalid PEC index: %d", pec->index);
>           return;
> @@ -486,8 +484,6 @@ static Property pnv_pec_properties[] = {
>           DEFINE_PROP_UINT32("chip-id", PnvPhb4PecState, chip_id, 0),
>           DEFINE_PROP_LINK("chip", PnvPhb4PecState, chip, TYPE_PNV_CHIP,
>                            PnvChip *),
> -        DEFINE_PROP_LINK("system-memory", PnvPhb4PecState, system_memory,
> -                     TYPE_MEMORY_REGION, MemoryRegion *),
>           DEFINE_PROP_END_OF_LIST(),
>   };
>   
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index f8b0b2a28383..3a550eed0f36 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1383,8 +1383,6 @@ static void pnv_chip_power9_phb_realize(PnvChip *chip, Error **errp)
>                                   &error_fatal);
>           object_property_set_link(OBJECT(pec), "chip", OBJECT(chip),
>                                    &error_fatal);
> -        object_property_set_link(OBJECT(pec), "system-memory",
> -                                 OBJECT(get_system_memory()), &error_abort);
>           if (!qdev_realize(DEVICE(pec), NULL, errp)) {
>               return;
>           }
>