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target/m68k: Switch to transaction_failed hook

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Switch the m68k target from the old unassigned_access hook
to the transaction_failed hook.

The notable difference is that rather than it being called
for all physical memory accesses which fail (including
those made by DMA devices or by the gdbstub), it is only
called for those made by the CPU via its MMU. (In previous
commits we put in explicit checks for the direct physical
loads made by the target/m68k code which will no longer
be handled by calling the unassigned_access hook.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20181210165636.28366-4-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Peter Maydell 2018-12-10 16:56:36 +00:00 • committed by Laurent Vivier
parent adcf0bf017
commit e1aaf3a88e
3 changed files with 13 additions and 16 deletions
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2
target/m68k/cpu.c
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@ -271,7 +271,7 @@ static void m68k_cpu_class_init(ObjectClass *c, void *data)
cc->gdb_write_register = m68k_cpu_gdb_write_register;
cc->handle_mmu_fault = m68k_cpu_handle_mmu_fault;
#if defined(CONFIG_SOFTMMU)
cc->do_unassigned_access = m68k_cpu_unassigned_access;
cc->do_transaction_failed = m68k_cpu_transaction_failed;
cc->get_phys_page_debug = m68k_cpu_get_phys_page_debug;
#endif
cc->disas_set_info = m68k_cpu_disas_set_info;