[Qemu-devel] [PATCH] hw/arm/virt: add linux, stdout-path to /chosen DT node

[Ard Biesheuvel <ard.biesheuvel@linaro.org>]

Add a property "linux,stdout-path" to the /chosen DT node and make
it point to the emulated UART. This allows users such as the Linux
kernel to produce console output without the need to pass console=
or earlycon=pl011,0x... command line arguments.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 hw/arm/virt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 0edc1fa6cb22..619660a011b0 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -377,6 +377,8 @@ static void create_uart(const VirtBoardInfo *vbi, qemu_irq *pic)
                                vbi->clock_phandle, vbi->clock_phandle);
     qemu_fdt_setprop(vbi->fdt, nodename, "clock-names",
                          clocknames, sizeof(clocknames));
+
+    qemu_fdt_setprop_string(vbi->fdt, "/chosen", "linux,stdout-path", nodename);
     g_free(nodename);
 }
 
-- 
1.8.3.2