[PATCH v3] hw/riscv/virt: Add serial alias in DTB

[Vasilis Liaskovitis]

Add an "aliases" node with a "serial0" entry for the single UART
in the riscv virt machine.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2774
Signed-off-by: Vasilis Liaskovitis <vliaskovitis@suse.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
---
 hw/riscv/virt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 2bc5a9dd98..fb1928cebf 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -971,6 +971,7 @@ static void create_fdt_uart(RISCVVirtState *s, const 
MemMapEntry *memmap,
     }
 
     qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", name);
+    qemu_fdt_setprop_string(ms->fdt, "/aliases", "serial0", name);
 }
 
 static void create_fdt_rtc(RISCVVirtState *s, const MemMapEntry *memmap,
@@ -1180,6 +1181,8 @@ static void create_fdt(RISCVVirtState *s, const 
MemMapEntry *memmap)
     qemu_fdt_setprop(ms->fdt, "/chosen", "rng-seed",
                      rng_seed, sizeof(rng_seed));
 
+    qemu_fdt_add_subnode(ms->fdt, "/aliases");
+
     create_fdt_flash(s, memmap);
     create_fdt_fw_cfg(s, memmap);
     create_fdt_pmu(s);
-- 
2.46.0