The current device tree property uses two cells for the address (and for
the size), but assumes the they are less than 32 bits by hard coding the
high cell to zero.

Use qemu_fdt_setprop_sized_cells to do the job of splitting the upper
and lower 32 bits across cells.

Signed-off-by: Joel Stanley <joel@jms.id.au>
---
 hw/riscv/virt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index baa894b11aa6..d9303c9bb033 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -966,9 +966,9 @@ static void create_fdt_uart(RISCVVirtState *s,
                            s->memmap[VIRT_UART0].base);
     qemu_fdt_add_subnode(ms->fdt, name);
     qemu_fdt_setprop_string(ms->fdt, name, "compatible", "ns16550a");
-    qemu_fdt_setprop_cells(ms->fdt, name, "reg",
-        0x0, s->memmap[VIRT_UART0].base,
-        0x0, s->memmap[VIRT_UART0].size);
+    qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg",
+                                 2, s->memmap[VIRT_UART0].base,
+                                 2, s->memmap[VIRT_UART0].size);
     qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400);
     qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle);
     if (s->aia_type == VIRT_AIA_TYPE_NONE) {
-- 
2.47.2

On 4/29/25 3:12 AM, Joel Stanley wrote:
> The current device tree property uses two cells for the address (and for
> the size), but assumes the they are less than 32 bits by hard coding the
> high cell to zero.
> 
> Use qemu_fdt_setprop_sized_cells to do the job of splitting the upper
> and lower 32 bits across cells.
> 
> Signed-off-by: Joel Stanley <joel@jms.id.au>
> ---

Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

>   hw/riscv/virt.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
> index baa894b11aa6..d9303c9bb033 100644
> --- a/hw/riscv/virt.c
> +++ b/hw/riscv/virt.c
> @@ -966,9 +966,9 @@ static void create_fdt_uart(RISCVVirtState *s,
>                              s->memmap[VIRT_UART0].base);
>       qemu_fdt_add_subnode(ms->fdt, name);
>       qemu_fdt_setprop_string(ms->fdt, name, "compatible", "ns16550a");
> -    qemu_fdt_setprop_cells(ms->fdt, name, "reg",
> -        0x0, s->memmap[VIRT_UART0].base,
> -        0x0, s->memmap[VIRT_UART0].size);
> +    qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg",
> +                                 2, s->memmap[VIRT_UART0].base,
> +                                 2, s->memmap[VIRT_UART0].size);
>       qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400);
>       qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle);
>       if (s->aia_type == VIRT_AIA_TYPE_NONE) {