Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI

[Michael S. Tsirkin]

On Mon, Oct 19, 2015 at 11:18:36AM +0200, Igor Mammedov wrote:
> On Mon, 19 Oct 2015 09:56:12 +0300
> "Michael S. Tsirkin" <address@hidden> wrote:
> 
> > On Sun, Oct 11, 2015 at 11:52:54AM +0800, Xiao Guangrong wrote:
> [...]
> > > diff --git a/include/hw/mem/nvdimm.h b/include/hw/mem/nvdimm.h
> > > index f6bd2c4..aa95961 100644
> > > --- a/include/hw/mem/nvdimm.h
> > > +++ b/include/hw/mem/nvdimm.h
> > > @@ -15,6 +15,10 @@
> > >  
> > >  #include "hw/mem/dimm.h"
> > >  
> > > +/* Memory region 0xFF00000 ~ 0xFFF00000 is reserved for NVDIMM
> > > ACPI. */ +#define NVDIMM_ACPI_MEM_BASE   0xFF000000ULL
> Michael,
> 
> If it's ok to map control RAM region directly from QEMU at arbitrary
> location

It's a fair question. Where is it reserved? In which spec?

-- 
MST