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542b3478a0
For v7m we need to catch attempts to execute from special addresses at 0xfffffff0 and above. Previously we did this with the aid of a hacky special purpose lump of memory in the address space and a check in translate.c for whether we were translating code at those addresses. We can implement this more cleanly using a CPU unassigned access handler which throws the exception if the unassigned access is for one of the special addresses. Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1484937883-1068-3-git-send-email-peter.maydell@linaro.org [PMM: * drop the deletion of the "don't interrupt if PC is magic" code in arm_v7m_cpu_exec_interrupt() -- this is still required * don't generate an exception for unassigned accesses which aren't to the magic address -- although doing this is in theory correct in practice it will break currently working guests which rely on the RAZ/WI behaviour when they touch devices which we haven't modelled. * trigger EXCP_EXCEPTION_EXIT on is_exec, not !is_write ] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
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| .. | ||
| arch_dump.c | ||
| arm-powerctl.c | ||
| arm-powerctl.h | ||
| arm-semi.c | ||
| arm_ldst.h | ||
| cpu-qom.h | ||
| cpu.c | ||
| cpu.h | ||
| cpu64.c | ||
| crypto_helper.c | ||
| gdbstub.c | ||
| gdbstub64.c | ||
| helper-a64.c | ||
| helper-a64.h | ||
| helper.c | ||
| helper.h | ||
| internals.h | ||
| iwmmxt_helper.c | ||
| kvm-consts.h | ||
| kvm-stub.c | ||
| kvm.c | ||
| kvm32.c | ||
| kvm64.c | ||
| kvm_arm.h | ||
| machine.c | ||
| Makefile.objs | ||
| monitor.c | ||
| neon_helper.c | ||
| op_addsub.h | ||
| op_helper.c | ||
| psci.c | ||
| trace-events | ||
| translate-a64.c | ||
| translate.c | ||
| translate.h | ||