diff options
Diffstat (limited to 'target/hppa/mem_helper.c')
| -rw-r--r-- | target/hppa/mem_helper.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/target/hppa/mem_helper.c b/target/hppa/mem_helper.c index 08abd1a9f9..4fcc612754 100644 --- a/target/hppa/mem_helper.c +++ b/target/hppa/mem_helper.c @@ -55,8 +55,14 @@ hwaddr hppa_abs_to_phys_pa2_w0(vaddr addr) /* I/O address space */ addr = (int32_t)addr; } else { - /* PDC address space */ - addr &= MAKE_64BIT_MASK(0, 24); + /* + * PDC address space: + * Figures H-10 and H-11 of the parisc2.0 spec do not specify + * where to map into the 64-bit PDC address space. + * We map with an offset which equals the 32-bit address, which + * is what can be seen on physical machines too. + */ + addr = (uint32_t)addr; addr |= -1ull << (TARGET_PHYS_ADDR_SPACE_BITS - 4); } return addr; @@ -299,14 +305,8 @@ hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) return excp == EXCP_DTLB_MISS ? -1 : phys; } -G_NORETURN static void -raise_exception_with_ior(CPUHPPAState *env, int excp, uintptr_t retaddr, - vaddr addr, bool mmu_disabled) +void hppa_set_ior_and_isr(CPUHPPAState *env, vaddr addr, bool mmu_disabled) { - CPUState *cs = env_cpu(env); - - cs->exception_index = excp; - if (env->psw & PSW_Q) { /* * For pa1.x, the offset and space never overlap, and so we @@ -333,16 +333,23 @@ raise_exception_with_ior(CPUHPPAState *env, int excp, uintptr_t retaddr, */ uint64_t b; - cpu_restore_state(cs, retaddr); - - b = env->gr[env->unwind_breg]; + b = env->unwind_breg ? env->gr[env->unwind_breg] : 0; b >>= (env->psw & PSW_W ? 62 : 30); env->cr[CR_IOR] |= b << 62; - - cpu_loop_exit(cs); } } } +} + +G_NORETURN static void +raise_exception_with_ior(CPUHPPAState *env, int excp, uintptr_t retaddr, + vaddr addr, bool mmu_disabled) +{ + CPUState *cs = env_cpu(env); + + cs->exception_index = excp; + hppa_set_ior_and_isr(env, addr, mmu_disabled); + cpu_loop_exit_restore(cs, retaddr); } |