Re: [PATCH v6 09/14] hw/ppc: set machine->fdt in pnv_reset()

[Cédric Le Goater]

On 9/5/22 01:34, Daniel Henrique Barboza wrote:
> This will enable support for the 'dumpdtb' QMP/HMP command for
> all powernv machines.
>
> Cc: Cédric Le Goater <clg@kaod.org>
> Cc: Frederic Barrat <fbarrat@linux.ibm.com>
> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

Reviewed-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.

> ---
>   hw/ppc/pnv.c | 8 +++++++-
>   1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 354aa289d1..6a20c4811f 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -678,7 +678,13 @@ static void pnv_reset(MachineState *machine)
>       qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
>       cpu_physical_memory_write(PNV_FDT_ADDR, fdt, fdt_totalsize(fdt));
>   
> -    g_free(fdt);
> +    /*
> +     * Set machine->fdt for 'dumpdtb' QMP/HMP command. Free
> +     * the existing machine->fdt to avoid leaking it during
> +     * a reset.
> +     */
> +    g_free(machine->fdt);
> +    machine->fdt = fdt;
>   }
>   
>   static ISABus *pnv_chip_power8_isa_create(PnvChip *chip, Error **errp)