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target/hppa: Restore unwind_breg before calculating ior

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When calculating the IOR for the exception handlers, the current
unwind_breg value is needed on 64-bit hppa machines.
Restore that value by calling cpu_restore_state() earlier, which in turn
calls hppa_restore_state_to_opc() which restores the unwind_breg for the
current instruction.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 3824e0d643 ("target/hppa: Export function hppa_set_ior_and_isr()")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Helge Deller 2024-03-02 22:02:38 +01:00
parent a9bdc4c95e
commit 5ccd50172a
3 changed files with 6 additions and 3 deletions
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3
target/hppa/cpu.c
View file

@ -121,9 +121,10 @@ void hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
CPUHPPAState *env = &cpu->env;
cs->exception_index = EXCP_UNALIGN;
cpu_restore_state(cs, retaddr);
hppa_set_ior_and_isr(env, addr, MMU_IDX_MMU_DISABLED(mmu_idx));
cpu_loop_exit_restore(cs, retaddr);
cpu_loop_exit(cs);
}
#endif /* CONFIG_USER_ONLY */

3
target/hppa/mem_helper.c
View file

@ -348,9 +348,10 @@ raise_exception_with_ior(CPUHPPAState *env, int excp, uintptr_t retaddr,
CPUState *cs = env_cpu(env);
cs->exception_index = excp;
cpu_restore_state(cs, retaddr);
hppa_set_ior_and_isr(env, addr, mmu_disabled);
cpu_loop_exit_restore(cs, retaddr);
cpu_loop_exit(cs);
}
void hppa_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,

3
target/hppa/op_helper.c
View file

@ -351,11 +351,12 @@ target_ulong HELPER(probe)(CPUHPPAState *env, target_ulong addr,
excp = hppa_get_physical_address(env, addr, mmu_idx, 0, &phys,
&prot, NULL);
if (excp >= 0) {
cpu_restore_state(env_cpu(env), GETPC());
hppa_set_ior_and_isr(env, addr, MMU_IDX_MMU_DISABLED(mmu_idx));
if (excp == EXCP_DTLB_MISS) {
excp = EXCP_NA_DTLB_MISS;
}
hppa_dynamic_excp(env, excp, GETPC());
helper_excp(env, excp);
}
return (want & prot) != 0;
#endif