On 2011-12-04 14:20, Avi Kivity wrote:
> On 12/03/2011 01:17 PM, Jan Kiszka wrote:
>> From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
>>
>> Introduce a memory region type that can reserve I/O space. Such regions
>> are useful for modeling I/O that is only handled outside of QEMU, i.e.
>> in the context of an accelerator like KVM. Any access to such a region
>> from QEMU is a bug and will be reported as such.
>
> This is guest triggerable (DMA into the region), so abort() is too drastic.
Mmh, true. Will turn it into a print-once warning.
>
>> +void memory_region_init_reservation(MemoryRegion *mr,
>> + const char *name,
>> + uint64_t size)
>> +{
>> + memory_region_init(mr, name, size);
>> + mr->ops = &reservation_ops;
>> + mr->opaque = mr;
>> + mr->terminates = true;
>> + mr->backend_registered = false;
>> +}
>
> Just calling memory_region_init_io() is simpler, no?
Yep.
Thanks,
Jan
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