On 08/24/2011 02:22 PM, Peter Maydell wrote:
On 24 August 2011 11:11, Avi Kivity<a...@redhat.com>  wrote:
>  @@ -108,9 +111,15 @@ static uint32_t integratorcm_read(void *opaque, 
target_phys_addr_t offset)
>    static void integratorcm_do_remap(integratorcm_state *s, int flash)
>    {
>       if (flash) {
>  -        cpu_register_physical_memory(0, 0x100000, IO_MEM_RAM);
>  +        if (s->flash_mapped) {
>  +            sysbus_del_memory(&s->busdev,&s->flash);
>  +            s->flash_mapped = false;
>  +        }
>       } else {
>  -        cpu_register_physical_memory(0, 0x100000, s->flash_offset | 
IO_MEM_RAM);
>  +        if (!s->flash_mapped) {
>  +            sysbus_add_memory_overlap(&s->busdev, 0,&s->flash, 1);
>  +            s->flash_mapped = true;
>  +        }
>       }

This is introducing a new field in the device state which is actually
just tracking s->cm_init bit 2. At least it would be, except that
in integratorcm_set_ctrl this line:
     s->cm_init = (s->cm_init&  ~ 5) | (value ^ 5);

appears to be using ^ when it meant&  ...

This isn't a nak -- I'm happy for this to get committed and I'll fix
things up later, since the device doesn't have a VMStateDescription
that would be broken by the extra state field.

Even with vmstate, nothing would break since the field would be recovered on restore.

(Or if I get round to
it before the series gets committed I'll send you a fix to squash
into this patch.)

That would be best. Please post the &/^ fixup separately (if needed) since it isn't strictly related to the conversion.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


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