Re: [Qemu-devel] [PATCH V1 0/7] execute code from mmio area

[Paolo Bonzini <pbonzini@redhat.com>]

On 16/02/2017 15:30, fred.konrad@greensocs.com wrote:
> From: KONRAD Frederic <fred.konrad@greensocs.com>
> 
> This series allows to execute code from mmio areas.
> The main goal of this is to be able to run code for example from an SPI device.
> 
> The three first patch fixes the way get_page_addr_code fills the TLB.
> 
> The fourth patch implements the mmio execution helpers: the device must
> implement the request_ptr callback of the MemoryRegion and will be notified when
> the guest wants to execute code from it.
> 
> The fifth patch introduces mmio_interface device which allows to dynamically
> map a host pointer somewhere into the memory.
> 
> The sixth patch implements the execution from the SPI memories in the
> xilinx_spips model.

Sorry for the stupid question, where is mmio-interface used?  Wrong
version of patch 7 perhaps?

Paolo

> Thanks,
> Fred
> 
> RFC -> V1:
>   * Use an interface (mmio-interface) to fix any reference leak issue.
> 
> KONRAD Frederic (7):
>   cputlb: cleanup get_page_addr_code to use VICTIM_TLB_HIT
>   cputlb: move get_page_addr_code
>   cputlb: fix the way get_page_addr_code fills the tlb
>   exec: allow to get a pointer for some mmio memory region
>   qdev: add MemoryRegion property
>   introduce mmio_interface
>   xilinx_spips: allow mmio execution
> 
>  cputlb.c                         |  81 ++++++++++++++-----------
>  hw/misc/Makefile.objs            |   1 +
>  hw/misc/mmio_interface.c         | 128 +++++++++++++++++++++++++++++++++++++++
>  hw/ssi/xilinx_spips.c            |  74 ++++++++++++++++------
>  include/exec/memory.h            |  35 +++++++++++
>  include/hw/misc/mmio_interface.h |  49 +++++++++++++++
>  include/hw/qdev-properties.h     |   2 +
>  memory.c                         |  57 +++++++++++++++++
>  8 files changed, 372 insertions(+), 55 deletions(-)
>  create mode 100644 hw/misc/mmio_interface.c
>  create mode 100644 include/hw/misc/mmio_interface.h
>