From: David Gibson <david@gibson.dropbear.id.au>
To: BALATON Zoltan <balaton@eik.bme.hu>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [PATCH 1/6] ppc/pegasos2: Restrict memory to 2 gigabytes
Date: Fri, 15 Oct 2021 14:15:36 +1100 [thread overview]
Message-ID: <YWjyWH1Fj9o31heX@yekko> (raw)
In-Reply-To: <54f58229a69c9c1cca21bcecad700b3d7052edd5.1634241019.git.balaton@eik.bme.hu>
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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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next prev parent reply other threads:[~2021-10-15 7:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 19:50 [PATCH 0/6] Misc pegasos2 patches BALATON Zoltan
2021-10-14 19:50 ` [PATCH 4/6] ppc/pegasos2: Access MV64361 registers via their memory region BALATON Zoltan
2021-10-15 3:18 ` David Gibson
2021-10-14 19:50 ` [PATCH 1/6] ppc/pegasos2: Restrict memory to 2 gigabytes BALATON Zoltan
2021-10-15 3:15 ` David Gibson [this message]
2021-10-14 19:50 ` [PATCH 5/6] ppc/pegasos2: Add constants for PCI config addresses BALATON Zoltan
2021-10-15 3:19 ` David Gibson
2021-10-14 19:50 ` [PATCH 3/6] ppc/pegasos2: Implement get-time-of-day RTAS function with VOF BALATON Zoltan
2021-10-15 3:17 ` David Gibson
2021-10-15 9:26 ` BALATON Zoltan
2021-10-15 21:51 ` BALATON Zoltan
2021-10-14 19:50 ` [PATCH 6/6] ppc/pegasos2: Implement power-off " BALATON Zoltan
2021-10-15 3:19 ` David Gibson
2021-10-14 19:50 ` [PATCH 2/6] ppc/pegasos2: Warn when using VOF but no kernel is specified BALATON Zoltan
2021-10-15 3:15 ` David Gibson
2021-10-15 3:20 ` [PATCH 0/6] Misc pegasos2 patches David Gibson
2021-10-15 9:28 ` BALATON Zoltan
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