On Tue, Apr 06, 2021 at 10:48:42AM +0200, Philippe Mathieu-Daudé wrote: > On Mac99 and newer machines, the Uninorth PCI host bridge maps > the PCI hole region at 2GiB, so the RAM area beside 2GiB is not > accessible by the CPU. Restrict the memory to 2GiB to avoid > problems such the one reported in the buglink. > > Buglink: https://bugs.launchpad.net/qemu/+bug/1922391 > Reported-by: Håvard Eidnes <h...@netbsd.org> > Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Simple, and a bugfix. Applied to ppc-for-6.0.
> ---
> hw/ppc/mac_newworld.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
> index 21759628466..d88b38e9258 100644
> --- a/hw/ppc/mac_newworld.c
> +++ b/hw/ppc/mac_newworld.c
> @@ -157,6 +157,10 @@ static void ppc_core99_init(MachineState *machine)
> }
>
> /* allocate 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 ROM */
--
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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