Re: [PATCH v7 1/2] hw/misc/riscv_iopmp: Add RISC-V IOPMP device

[Ethan Chen via <qemu-riscv@nongnu.org>]

On Mon, Jun 17, 2024 at 02:09:34PM +0200, Stefan Weil wrote:
> [EXTERNAL MAIL]
> 
> Am 12.06.24 um 05:17 schrieb Ethan Chen via:
> > Support basic functions of IOPMP specification v0.9.1 rapid-k model.
> > The specification url:
> > https://github.com/riscv-non-isa/iopmp-spec/releases/tag/v0.9.1
> > 
> > IOPMP check memory access from device is valid or not. This implementation uses
> > IOMMU to change address space that device access. There are three possible
> > results of an access: valid, blocked, and stalled(stall is not supported in this
> >   patch).
> > 
> > If an access is valid, target address space is downstream_as.
> > If an access is blocked, it will go to blocked_io_as. The operation of
> > blocked_io_as could be a bus error, or it can respond a success with fabricated
> > data depending on IOPMP ERR_CFG register value.
> > 
> > Signed-off-by: Ethan Chen <ethan84@andestech.com>
> > ---
> >   hw/misc/Kconfig               |    3 +
> >   hw/misc/meson.build           |    1 +
> >   hw/misc/riscv_iopmp.c         | 1002 +++++++++++++++++++++++++++++++++
> >   hw/misc/trace-events          |    4 +
> >   include/hw/misc/riscv_iopmp.h |  152 +++++
> >   5 files changed, 1162 insertions(+)
> >   create mode 100644 hw/misc/riscv_iopmp.c
> >   create mode 100644 include/hw/misc/riscv_iopmp.h
> 
> Should both new files have SPDX license identifiers?
> 
> Regards,
> Stefan W.

Thank you for the reminder, I will add them.

Thanks,
Ethan