Re: [Qemu-devel] [PATCH v6 08/26] RISC-V: Make sure rom has space for fdt

[Peter Maydell]

On 24 March 2018 at 18:13, Michael Clark <address@hidden> wrote:
> Remove a potential buffer overflow (not seen in practice).
> Perhaps cpu_physical_memory_write already has bound checks.

cpu_physical_memory_write() writes to the guest address
space, so it won't overflow. If you ask it to write
off the end of a ROM then it will correctly write into
an unassigned part of the guest memory space (which does
nothing) or into whatever device or other ram is there.
You probably don't want to do that, but it is not a buffer
overflow.

thanks
-- PMM