diff options
Diffstat (limited to 'hw/s390-virtio.c')
| -rw-r--r-- | hw/s390-virtio.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/hw/s390-virtio.c b/hw/s390-virtio.c index 698ff6f..3eba7ea 100644 --- a/hw/s390-virtio.c +++ b/hw/s390-virtio.c @@ -131,7 +131,7 @@ int s390_virtio_hypercall(CPUState *env, uint64_t mem, uint64_t hypercall) } /* PC hardware initialisation */ -static void s390_init(ram_addr_t ram_size, +static void s390_init(ram_addr_t my_ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, @@ -143,19 +143,29 @@ static void s390_init(ram_addr_t ram_size, ram_addr_t kernel_size = 0; ram_addr_t initrd_offset; ram_addr_t initrd_size = 0; + int shift = 0; uint8_t *storage_keys; int i; + /* s390x ram size detection needs a 16bit multiplier + an increment. So + guests > 64GB can be specified in 2MB steps etc. */ + while ((my_ram_size >> (20 + shift)) > 65535) { + shift++; + } + my_ram_size = my_ram_size >> (20 + shift) << (20 + shift); + + /* lets propagate the changed ram size into the global variable. */ + ram_size = my_ram_size; /* get a BUS */ - s390_bus = s390_virtio_bus_init(&ram_size); + s390_bus = s390_virtio_bus_init(&my_ram_size); /* allocate RAM */ - ram_addr = qemu_ram_alloc(NULL, "s390.ram", ram_size); - cpu_register_physical_memory(0, ram_size, ram_addr); + ram_addr = qemu_ram_alloc(NULL, "s390.ram", my_ram_size); + cpu_register_physical_memory(0, my_ram_size, ram_addr); /* allocate storage keys */ - storage_keys = qemu_mallocz(ram_size / TARGET_PAGE_SIZE); + storage_keys = qemu_mallocz(my_ram_size / TARGET_PAGE_SIZE); /* init CPUs */ if (cpu_model == NULL) { |