This patchset converts the m68k target from the deprecated
unassigned_access hook to the new transaction_failed hook.
It's RFC for a couple of reasons:
* it's untested, since I don't have an m68k test image
* the second patch just makes "bus error while trying to
read page tables" be treated as a page fault, when it
should probably cause a fault reporting it as a bus error
of some kind
* I don't understand why the old unassigned_access hook
set the ATC bit in the MMU SSW, since the docs I have say
this should be set if the fault happened during a table
search, but cleared if it's just an ordinary bus-errored
data or insn access. Probably this is a pre-existing bug?
Anyway, I send it out as a skeleton for comments, because
it would be nice to get rid of the old unassigned_access
hook, which is fundamentally broken (it's still used by m68k,
microblaze, mips and sparc).
thanks
-- PMM
Peter Maydell (3):
target/m68k: In dump_address_map() check for memory access failures
target/m68k: In get_physical_address() check for memory access
failures
target/m68k: Switch to transaction_failed hook
target/m68k/cpu.h | 7 ++--
target/m68k/cpu.c | 2 +-
target/m68k/helper.c | 84 ++++++++++++++++++++++++++++++++---------
target/m68k/op_helper.c | 20 ++++------
4 files changed, 80 insertions(+), 33 deletions(-)
--
2.19.2
