Re: [PATCH 1/3] hw/hppa/machine: Correctly check the firmware is in PDC range

[Helge Deller <deller@gmx.de>]

On 08.01.20 19:14, Philippe Mathieu-Daudé wrote:
> The firmware has to reside in the PDC range. If the Elf file
> expects to load it below FIRMWARE_START, it is incorrect,
> regardless the RAM size.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Acked-by: Helge Deller <deller@gmx.de>

> ---
> Note we define FIRMWARE_END=0xf0800000 but in the specs
> the PDC ends at 0xf1000000.
> ---
>  hw/hppa/machine.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
> index 5d0de26140..6775d879f8 100644
> --- a/hw/hppa/machine.c
> +++ b/hw/hppa/machine.c
> @@ -155,7 +155,7 @@ static void machine_hppa_init(MachineState *machine)
>      qemu_log_mask(CPU_LOG_PAGE, "Firmware loaded at 0x%08" PRIx64
>                    "-0x%08" PRIx64 ", entry at 0x%08" PRIx64 ".\n",
>                    firmware_low, firmware_high, firmware_entry);
> -    if (firmware_low < ram_size || firmware_high >= FIRMWARE_END) {
> +    if (firmware_low < FIRMWARE_START || firmware_high >= FIRMWARE_END) {
>          error_report("Firmware overlaps with memory or IO space");
>          exit(1);
>      }
>