* rth/axp-next: (26 commits)
target-alpha: Implement TLB flush primitives.
target-alpha: Use a fixed frequency for the RPCC in system mode.
target-alpha: Trap for unassigned and unaligned addresses.
target-alpha: Remap PIO space for 43-bit KSEG for EV6.
target-alpha: Implement cpu_alpha_handle_mmu_fault for system mode.
target-alpha: Implement more CALL_PAL values inline.
target-alpha: Disable interrupts properly.
target-alpha: All ISA checks to use TB->FLAGS.
target-alpha: Swap shadow registers moving to/from PALmode.
target-alpha: Implement do_interrupt for system mode.
target-alpha: Add IPRs to be used by the emulation PALcode.
target-alpha: Use kernel mmu_idx for pal_mode.
target-alpha: Add various symbolic constants.
target-alpha: Use do_restore_state for arithmetic exceptions.
target-alpha: Tidy up arithmetic exceptions.
target-alpha: Tidy exception constants.
target-alpha: Enable the alpha-softmmu target.
target-alpha: Rationalize internal processor registers.
target-alpha: Merge HW_REI and HW_RET implementations.
target-alpha: Cleanup MMU modes.
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