From: Philippe Mathieu-Daudé <[email protected]> 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 <[email protected]> Signed-off-by: Philippe Mathieu-Daudé <[email protected]> Message-Id: <[email protected]> Reviewed-by: BALATON Zoltan <[email protected]> Signed-off-by: David Gibson <[email protected]> --- 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 2175962846..d88b38e925 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 */ -- 2.31.1
