hw/riscv/virt.c: change 'plic' nodename to 'interrupt-controller'

We're still using "/soc/plic@..." as FDT nodename in virt.c.  This is
not the right nodename per the DT docs:

https://www.kernel.org/doc/Documentation/devicetree/bindings/interrupt-controller/sifive%2Cplic-1.0.0.txt

The nodename must be 'interrupt-controller@...' since the node inherits
the 'interrupt-controller' type.  In fact, ever since at least the 2020
Linux kernel commit c825a081c169cc7f ("dt-bindings: riscv: convert plic
bindings to json-schema") the correct nodename has been
'interrupt-controller' for the sifive PLIC controller.

There's no deprecation needed for bug fixes so we're just fixing the
name.  This was the policy we dud when fixing the aplic [1] and the
imsic [2] nodenames to 'interrupt-controller@...' as well.

The sifive_u PLIC FDT already uses the correct nodename for PLIC, so it
is safe to assume that available SW is already aware of the correct
nodename and this change won't affect well-behaved SW.

[1] commit 29390fd ("hw/riscv/virt.c: rename aplic nodename to 'interrupt-controller'")
[2] commit e8ad581 ("hw/riscv/virt.c: change imsic nodename to 'interrupt-controller'")

Signed-off-by: Daniel Henrique Barboza <daniel.barboza@oss.qualcomm.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20260616235939.1358663-5-daniel.barboza@oss.qualcomm.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 33775a61fd..fa464e644f 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -335,7 +335,7 @@ static void create_fdt_socket_plic(RISCVVirtState *s,
     plic_phandles[socket] = (*phandle)++;
     plic_addr = s->memmap[VIRT_PLIC].base +
                 (s->memmap[VIRT_PLIC].size * socket);
-    plic_name = g_strdup_printf("/soc/plic@%lx", plic_addr);
+    plic_name = g_strdup_printf("/soc/interrupt-controller@%lx", plic_addr);
     qemu_fdt_add_subnode(ms->fdt, plic_name);
     qemu_fdt_setprop_cell(ms->fdt, plic_name,
         "#interrupt-cells", FDT_PLIC_INT_CELLS);