Re: [Xen-devel] [PATCH v8 20/21] xen/arm: Add a hypercall for device mmio mapping

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 30.03.16 at 12:08, <zhaoshenglong@xxxxxxxxxx> wrote:
> From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
> 
> It needs to map platform or amba device mmio to Dom0 on ARM. But when
> booting with ACPI, it can't get the mmio region in Xen due to lack of
> AML interpreter to parse DSDT table. Therefore, let Dom0 call a
> hypercall to map mmio region when it adds the devices.
> 
> Here we add a new map space like the XEN_DOMCTL_memory_mapping to map
> mmio region for Dom0. Also add a helper to combine the
> xsm_add_to_physmap and XENMAPSPACE_dev_mmio space check together.
> 
> Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>




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