diff options
Diffstat (limited to 'arch/powerpc/boot/main.c')
| -rw-r--r-- | arch/powerpc/boot/main.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c index 9e7f3ddd991..a28f02165e9 100644 --- a/arch/powerpc/boot/main.c +++ b/arch/powerpc/boot/main.c @@ -56,9 +56,19 @@ static struct addr_range prep_kernel(void) if (platform_ops.vmlinux_alloc) { addr = platform_ops.vmlinux_alloc(ei.memsize); } else { - if ((unsigned long)_start < ei.memsize) + /* + * Check if the kernel image (without bss) would overwrite the + * bootwrapper. The device tree has been moved in fdt_init() + * to an area allocated with malloc() (somewhere past _end). + */ + if ((unsigned long)_start < ei.loadsize) fatal("Insufficient memory for kernel at address 0!" - " (_start=%p)\n\r", _start); + " (_start=%p, uncompressed size=%08lx)\n\r", + _start, ei.loadsize); + + if ((unsigned long)_end < ei.memsize) + fatal("The final kernel image would overwrite the " + "device tree\n\r"); } /* Finally, gunzip the kernel */ |