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ppc/pnv: Introduce PnvMachineClass and PnvMachineClass::compat

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The pnv_dt_create() function generates different contents for the
"compatible" property of the root node in the DT, depending on the
CPU type. This is open coded with multiple ifs using pnv_is_powerXX()
helpers.

It seems cleaner to achieve with QOM. Introduce a base class for the
powernv machine and a compat attribute that each child class can use
to provide the value for the "compatible" property.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157623839085.360005.4046508784077843216.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[dwg: Folded in small fix Greg spotted after posting]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-12-13 12:59:50 +01:00 • committed by David Gibson
parent 248e4e924e
commit d76f2da7a5
2 changed files with 31 additions and 14 deletions
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13
include/hw/ppc/pnv.h
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@ -185,6 +185,19 @@ PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir);
#define TYPE_PNV_MACHINE MACHINE_TYPE_NAME("powernv")
#define PNV_MACHINE(obj) \
OBJECT_CHECK(PnvMachineState, (obj), TYPE_PNV_MACHINE)
#define PNV_MACHINE_GET_CLASS(obj) \
OBJECT_GET_CLASS(PnvMachineClass, obj, TYPE_PNV_MACHINE)
#define PNV_MACHINE_CLASS(klass) \
OBJECT_CLASS_CHECK(PnvMachineClass, klass, TYPE_PNV_MACHINE)
typedef struct PnvMachineClass {
/*< private >*/
MachineClass parent_class;
/*< public >*/
const char *compat;
int compat_size;
} PnvMachineClass;
typedef struct PnvMachineState {
/*< private >*/