> -----Original Message-----
> From: Nicolin Chen <[email protected]>
> Sent: 31 October 2025 21:11
> To: Shameer Kolothum <[email protected]>
> Cc: [email protected]; [email protected];
> [email protected]; [email protected]; Jason Gunthorpe
> <[email protected]>; [email protected]; [email protected]; Nathan
> Chen <[email protected]>; Matt Ochs <[email protected]>;
> [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; [email protected]; [email protected];
> Krishnakant Jaju <[email protected]>
> Subject: Re: [PATCH v5 06/32] hw/arm/smmuv3-accel: Initialize shared system
> address space
>
> On Fri, Oct 31, 2025 at 10:49:39AM +0000, Shameer Kolothum wrote:
> > To support accelerated SMMUv3 instances, introduce a shared
> > system-wide AddressSpace (shared_as_sysmem) that aliases the global
> system memory.
> > This shared AddressSpace will be used in a subsequent patch for all
> > vfio-pci devices behind all accelerated SMMUv3 instances within a VM.
> >
> > Signed-off-by: Shameer Kolothum <[email protected]>
>
> Reviewed-by: Nicolin Chen <[email protected]>
>
> > +/*
> > + * The root region aliases the global system memory, and
> > +shared_as_sysmem
> > + * provides a shared Address Space referencing it. This Address Space
> > +is used
> > + * by all vfio-pci devices behind all accelerated SMMUv3 instances within a
> VM.
> > + */
> > +MemoryRegion root;
> > +MemoryRegion sysmem;
> > +static AddressSpace *shared_as_sysmem;
>
> static MemoryRegion root, sysmem; ?
Sure.
Thanks,
Shameer
