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Re: [PATCH 1/6] ppc/pegasos2: Restrict memory to 2 gigabytes
From: |
David Gibson |
Subject: |
Re: [PATCH 1/6] ppc/pegasos2: Restrict memory to 2 gigabytes |
Date: |
Fri, 15 Oct 2021 14:15:36 +1100 |
On Thu, Oct 14, 2021 at 09:50:19PM +0200, BALATON Zoltan wrote:
> The CHRP spec this board confirms to only allows 2 GiB of system
> memory below 4 GiB as the high 2 GiB is allocated to IO and system
> resources. To avoid problems with memory overlapping these areas
> restrict RAM to 2 GiB similar to mac_newworld.
>
> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Applied, thanks.
> ---
> hw/ppc/pegasos2.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
> index b8ce859f1a..474cfdeabf 100644
> --- a/hw/ppc/pegasos2.c
> +++ b/hw/ppc/pegasos2.c
> @@ -117,6 +117,10 @@ static void pegasos2_init(MachineState *machine)
> qemu_register_reset(pegasos2_cpu_reset, pm->cpu);
>
> /* RAM */
> + if (machine->ram_size > 2 * GiB) {
> + error_report("RAM size more than 2 GiB is not supported");
> + exit(1);
> + }
> memory_region_add_subregion(get_system_memory(), 0, machine->ram);
>
> /* allocate and load firmware */
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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