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ppc/pnv: introduce new skiboot platform properties 

Newer skiboots (after 6.3) support QEMU platforms that have
characteristics closer to real OpenPOWER systems. The CPU type is used
to define the BMC drivers: Aspeed AST2400 for POWER8 processors and
AST2500 for POWER9s.

Advertise the new platform property names, "qemu,powernv8" and
"qemu,powernv9", using the CPU type chosen for the QEMU PowerNV
machine. Also, advertise the original platform name "qemu,powernv" in
case of POWER8 processors for compatibility with older skiboots.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190527071749.31499-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-05-27 09:17:49 +02:00 committed by David Gibson
parent 3725ef1a94
commit 83b90bf026
1 changed files with 10 additions and 3 deletions
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13
hw/ppc/pnv.c
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@ -450,7 +450,8 @@ static void pnv_dt_power_mgt(void *fdt)
static void *pnv_dt_create(MachineState *machine)
{
const char plat_compat[] = "qemu,powernv\0ibm,powernv";
const char plat_compat8[] = "qemu,powernv8\0qemu,powernv\0ibm,powernv";
const char plat_compat9[] = "qemu,powernv9\0ibm,powernv";
PnvMachineState *pnv = PNV_MACHINE(machine);
void *fdt;
char *buf;
@ -465,8 +466,14 @@ static void *pnv_dt_create(MachineState *machine)
_FDT((fdt_setprop_cell(fdt, 0, "#size-cells", 0x2)));
_FDT((fdt_setprop_string(fdt, 0, "model",
"IBM PowerNV (emulated by qemu)")));
_FDT((fdt_setprop(fdt, 0, "compatible", plat_compat,
sizeof(plat_compat))));
if (pnv_is_power9(pnv)) {
_FDT((fdt_setprop(fdt, 0, "compatible", plat_compat9,
sizeof(plat_compat9))));
} else {
_FDT((fdt_setprop(fdt, 0, "compatible", plat_compat8,
sizeof(plat_compat8))));
}
buf = qemu_uuid_unparse_strdup(&qemu_uuid);
_FDT((fdt_setprop_string(fdt, 0, "vm,uuid", buf)));