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authorCédric Le Goater <clg@kaod.org>2017-04-11 17:30:04 +0200
committerDavid Gibson <david@gibson.dropbear.id.au>2017-04-26 12:41:56 +1000
commit04f6c8b2c001b57b904cb9e2caea774303601253 (patch)
tree80d8db66a4962959248ca24e6a35a8bb63ae4f92 /hw/ppc
parentcb228f5a00977370796bba2487cbaef2ed26881e (diff)
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ppc/pnv: populate device tree for IPMI BT devices
When an ipmi-bt device [1] is defined on the ISA bus, we need to populate the device tree with the object properties. Such devices are created with the command line options : -device ipmi-bmc-sim,id=bmc0 -device isa-ipmi-bt,bmc=bmc0,irq=10 [1] https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg03168.html Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc')
-rw-r--r--hw/ppc/pnv.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index dfa21e4..977e126 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -354,6 +354,39 @@ static void powernv_populate_serial(ISADevice *d, void *fdt, int lpc_off)
_FDT((fdt_setprop_string(fdt, node, "device_type", "serial")));
}
+static void powernv_populate_ipmi_bt(ISADevice *d, void *fdt, int lpc_off)
+{
+ const char compatible[] = "bt\0ipmi-bt";
+ uint32_t io_base;
+ uint32_t io_regs[] = {
+ cpu_to_be32(1),
+ 0, /* 'io_base' retrieved from the 'ioport' property of 'isa-ipmi-bt' */
+ cpu_to_be32(3)
+ };
+ uint32_t irq;
+ char *name;
+ int node;
+
+ io_base = object_property_get_int(OBJECT(d), "ioport", &error_fatal);
+ io_regs[1] = cpu_to_be32(io_base);
+
+ irq = object_property_get_int(OBJECT(d), "irq", &error_fatal);
+
+ name = g_strdup_printf("%s@i%x", qdev_fw_name(DEVICE(d)), io_base);
+ node = fdt_add_subnode(fdt, lpc_off, name);
+ _FDT(node);
+ g_free(name);
+
+ fdt_setprop(fdt, node, "reg", io_regs, sizeof(io_regs));
+ fdt_setprop(fdt, node, "compatible", compatible, sizeof(compatible));
+
+ /* Mark it as reserved to avoid Linux trying to claim it */
+ _FDT((fdt_setprop_string(fdt, node, "status", "reserved")));
+ _FDT((fdt_setprop_cell(fdt, node, "interrupts", irq)));
+ _FDT((fdt_setprop_cell(fdt, node, "interrupt-parent",
+ fdt_get_phandle(fdt, lpc_off))));
+}
+
typedef struct ForeachPopulateArgs {
void *fdt;
int offset;
@@ -368,6 +401,8 @@ static int powernv_populate_isa_device(DeviceState *dev, void *opaque)
powernv_populate_rtc(d, args->fdt, args->offset);
} else if (object_dynamic_cast(OBJECT(dev), TYPE_ISA_SERIAL)) {
powernv_populate_serial(d, args->fdt, args->offset);
+ } else if (object_dynamic_cast(OBJECT(dev), "isa-ipmi-bt")) {
+ powernv_populate_ipmi_bt(d, args->fdt, args->offset);
} else {
error_report("unknown isa device %s@i%x", qdev_fw_name(dev),
d->ioport_id);