Hi Peter Maydell: Got it, thank you very much!
2017-12-02 19:52 GMT+08:00 Peter Maydell <peter.mayd...@linaro.org>: > On 2 December 2017 at 07:41, FelixYao <felix....@gmail.com> wrote: > > hi Paolo Bonzini: > > > > Those codes seem useless, Could it be removed? > > > > Signed-off-by: FelixYao <felix....@gmail.com> > > --- > > vl.c | 4 ---- > > 1 file changed, 4 deletions(-) > > > > diff --git a/vl.c b/vl.c > > index 1ad1c04..5bed4c2 100644 > > --- a/vl.c > > +++ b/vl.c > > @@ -2995,10 +2995,6 @@ static void set_memory_options(uint64_t > *ram_slots, ram_addr_t *maxram_size, > > > > sz = QEMU_ALIGN_UP(sz, 8192); > > ram_size = sz; > > - if (ram_size != sz) { > > - error_report("ram size too large"); > > - exit(EXIT_FAILURE); > > - } > > ram_size is a ramaddr_t, which may be a 32-bit variable, whereas > sz is a uint64_t. This check is making sure that the ram size > specified can actually fit in a ramaddr_t. > > thanks > -- PMM >