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| author | Cédric Le Goater | 2021-01-29 12:17:19 +0100 |
|---|---|---|
| committer | David Gibson | 2021-02-10 04:50:11 +0100 |
| commit | dd7ef911b398d96a7b9f2fb26f741045538d7d9b (patch) | |
| tree | 35628d3e16bd489d0f9084d36badfd7db24007ac /hw/ppc | |
| parent | spapr_numa.c: fix ibm,max-associativity-domains calculation (diff) | |
| download | qemu-dd7ef911b398d96a7b9f2fb26f741045538d7d9b.tar.gz qemu-dd7ef911b398d96a7b9f2fb26f741045538d7d9b.tar.xz qemu-dd7ef911b398d96a7b9f2fb26f741045538d7d9b.zip | |
ppc/pnv: Set default RAM size to 1 GB
The memory layout of the PowerNV machine is defined as :
#define KERNEL_LOAD_BASE ((void *)0x20000000)
#define KERNEL_LOAD_SIZE 0x08000000
#define INITRAMFS_LOAD_BASE KERNEL_LOAD_BASE + KERNEL_LOAD_SIZE
#define INITRAMFS_LOAD_SIZE 0x08000000
#define SKIBOOT_BASE 0x30000000
#define SKIBOOT_SIZE 0x01c10000
#define CPU_STACKS_BASE (SKIBOOT_BASE + SKIBOOT_SIZE)
#define STACK_SHIFT 15
#define STACK_SIZE (1 << STACK_SHIFT)
The overall size of the CPU stacks is (max PIR + 1) * 32K and the
machine easily reaches 800MB of minimum required RAM.
Any value below will result in a skiboot crash :
[ 0.034949905,3] MEM: Partial overlap detected between regions:
[ 0.034959039,3] MEM: ibm,firmware-stacks [0x31c10000-0x3a450000] (new)
[ 0.034968576,3] MEM: ibm,firmware-allocs-memory@0 [0x31c10000-0x38400000]
[ 0.034980367,3] Out of memory adding skiboot reserved areas
[ 0.035074945,3] ***********************************************
[ 0.035093627,3] < assert failed at core/mem_region.c:1129 >
[ 0.035104247,3] .
[ 0.035108025,3] .
[ 0.035111651,3] .
[ 0.035115231,3] OO__)
[ 0.035119198,3] <"__/
[ 0.035122980,3] ^ ^
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210129111719.790692-1-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/pnv.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 50810df838..77af846cdf 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -21,6 +21,7 @@ #include "qemu-common.h" #include "qemu/datadir.h" #include "qemu/units.h" +#include "qemu/cutils.h" #include "qapi/error.h" #include "sysemu/qtest.h" #include "sysemu/sysemu.h" @@ -725,8 +726,11 @@ static void pnv_init(MachineState *machine) DeviceState *dev; /* allocate RAM */ - if (machine->ram_size < (1 * GiB)) { - warn_report("skiboot may not work with < 1GB of RAM"); + if (machine->ram_size < mc->default_ram_size) { + char *sz = size_to_str(mc->default_ram_size); + error_report("Invalid RAM size, should be bigger than %s", sz); + g_free(sz); + exit(EXIT_FAILURE); } memory_region_add_subregion(get_system_memory(), 0, machine->ram); @@ -1994,7 +1998,7 @@ static void pnv_machine_class_init(ObjectClass *oc, void *data) * RAM defaults to less than 2048 for 32-bit hosts, and large * enough to fit the maximum initrd size at it's load address */ - mc->default_ram_size = INITRD_LOAD_ADDR + INITRD_MAX_SIZE; + mc->default_ram_size = 1 * GiB; mc->default_ram_id = "pnv.ram"; ispc->print_info = pnv_pic_print_info; nc->nmi_monitor_handler = pnv_nmi; |