Re: [Qemu-devel] [PATCH V3 0/7] execute code from mmio area

[Frederic Konrad]

Ping!

This is mostly reviewed maybe the 6th patch needs a little look.

Thanks,
Fred

On 04/28/2017 04:59 PM, address@hidden wrote:
> From: KONRAD Frederic <address@hidden>
> 
> 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 sixth 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 fouth and fifth patch introduces mmio_interface device which allows to
> dynamically map a host pointer somewhere into the memory.
> 
> The last patch implements the execution from the SPI memories in the
> xilinx_spips model.
> 
> Thanks,
> Fred
> 
> V2 -> V3:
>   * Reorder patches to allow bisection.
>   * Rebase on current master.
>   * Use an async work to invalidate the mmio region.
>   * Clear the dirty of the region before invalidating it.
> V1 -> V2:
>   * Fix the DPRINTF error.
> 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
>   qdev: add MemoryRegion property
>   introduce mmio_interface
>   exec: allow to get a pointer for some mmio memory region
>   xilinx_spips: allow mmio execution
> 
>  cputlb.c                         |  82 ++++++++++++++-----------
>  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                         | 111 +++++++++++++++++++++++++++++++++
>  8 files changed, 428 insertions(+), 54 deletions(-)
>  create mode 100644 hw/misc/mmio_interface.c
>  create mode 100644 include/hw/misc/mmio_interface.h
>