From 4c823cff9e0a3a11d917869dfbc8ae94bff26bba Mon Sep 17 00:00:00 2001 From: j_mayer Date: Mon, 29 Oct 2007 10:19:50 +0000 Subject: PowerPC 601 / 620 / 970 need a 1MB firmware. This option is not allowed for PowerMac, as it would overlap with NVRAM. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3480 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/ppc_chrp.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'hw/ppc_chrp.c') diff --git a/hw/ppc_chrp.c b/hw/ppc_chrp.c index f71169e53a..b97f99f8bd 100644 --- a/hw/ppc_chrp.c +++ b/hw/ppc_chrp.c @@ -98,6 +98,13 @@ static void ppc_core99_init (int ram_size, int vga_ram_size, int boot_device, register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); envs[i] = env; } + if (env->nip < 0xFFF80000) { + /* Special test for PowerPC 601: + * the boot vector is at 0xFFF00100, then we need a 1MB BIOS. + * But the NVRAM is located at 0xFFF04000... + */ + cpu_abort(env, "Mac99 hardware can not handle 1 MB BIOS\n"); + } /* allocate RAM */ cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); @@ -113,6 +120,10 @@ static void ppc_core99_init (int ram_size, int vga_ram_size, int boot_device, exit(1); } bios_size = (bios_size + 0xfff) & ~0xfff; + if (bios_size > 0x00080000) { + /* As the NVRAM is located at 0xFFF04000, we cannot use 1 MB BIOSes */ + cpu_abort(env, "Mac99 hardware can not handle 1 MB BIOS\n"); + } cpu_register_physical_memory((uint32_t)(-bios_size), bios_size, bios_offset | IO_MEM_ROM); -- cgit v1.2.3