Re: [PATCH v7 12/17] spapr: Don't use weird units for MIN_RMA_SLOF

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

(sorry I missed that due to the change of series cover subject, I was 
tracking "Fixes for RMA size calculation​")

On 3/3/20 4:43 AM, David Gibson wrote:
> MIN_RMA_SLOF records the minimum about of RMA that the SLOF firmware
> requires.  It lets us give a meaningful error if the RMA ends up too small,
> rather than just letting SLOF crash.
> 
> It's currently stored as a number of megabytes, which is strange for global
> constants.  Move that megabyte scaling into the definition of the constant
> like most other things use.
> 
> Change from M to MiB in the associated message while we're at it.
> 
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> Reviewed-by: Cédric Le Goater <clg@kaod.org>
> Reviewed-by: Greg Kurz <groug@kaod.org>
> ---
>   hw/ppc/spapr.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index cc10798be4..510494ad87 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -103,7 +103,7 @@
>   #define FW_OVERHEAD             0x2800000
>   #define KERNEL_LOAD_ADDR        FW_MAX_SIZE
>   
> -#define MIN_RMA_SLOF            128UL
> +#define MIN_RMA_SLOF            (128 * MiB)
>   
>   #define PHANDLE_INTC            0x00001111
>   
> @@ -2956,10 +2956,10 @@ static void spapr_machine_init(MachineState *machine)
>           }
>       }
>   
> -    if (spapr->rma_size < (MIN_RMA_SLOF * MiB)) {
> +    if (spapr->rma_size < MIN_RMA_SLOF) {
>           error_report(
> -            "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)",
> -            MIN_RMA_SLOF);
> +            "pSeries SLOF firmware requires >= %ldMiB guest RMA (Real Mode Area memory)",
> +            MIN_RMA_SLOF / MiB);
>           exit(1);
>       }
>   
> 

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>