[PATCH 0/6] exec/memory: Rework some address and access size limits

[Philippe Mathieu-Daudé]

These patches are extracted from a bigger series which
- remove generic ISA space, restricting it to the hw
  that really has it (mostly PCI-ISA bridges)
- allow QTest/GDB to use any address space
- make I/O address space target-specific (only X86 and
  AVR have a CPU connected to it)
- better handle Harvard architectures

Various patches only make sense if the AVR arch is merged,
so instead of waiting and keeping rebasing/testing, let's
share what is generic and might be worthwhile.

Currently the QMP/QTest commands only use the 1st CPU
address space, which has already been reported to limit
fuzzing/fault_injection/gdbstub.

I'll probably follow with the PCI-ISA bridge part, but
let's first see the feedback for this batch.

Regards,

Phil.

Philippe Mathieu-Daudé (6):
  target/s390x/mmu_helper: Use address_space_rw() in place
  hw/dma/rc4030: Use DMA address space to do DMA accesses
  hw/sd/allwinner-sdhost: Do DMA accesses via DMA address space
  exec/cpu-common: Do not restrict CPU to 32-bit memory access maximum
  exec: Restrict 32-bit CPUs to 32-bit address space
  memory: Use CPU register size as default access_size_max

 include/exec/cpu-common.h        |  4 ++--
 include/hw/sd/allwinner-sdhost.h |  4 ++++
 exec.c                           | 10 ++++++++-
 hw/dma/rc4030.c                  |  3 ++-
 hw/sd/allwinner-sdhost.c         | 36 ++++++++++++++++++++++++++------
 hw/usb/hcd-musb.c                | 12 +++++------
 memory.c                         |  2 +-
 target/s390x/mmu_helper.c        |  6 ++++--
 8 files changed, 58 insertions(+), 19 deletions(-)

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2.21.3