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author | 2009-09-11 10:27:38 +0200 | |
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committer | 2009-09-11 10:27:38 +0200 | |
commit | 97f90cbfe810bb153fc44bde732d9639610783bb (patch) | |
tree | 05e350cec20ee874ec976bf1a4dc07100c39209c /target-microblaze | |
parent | Update OpenBIOS images to r577 (diff) | |
download | qemu-kvm-97f90cbfe810bb153fc44bde732d9639610783bb.tar.gz qemu-kvm-97f90cbfe810bb153fc44bde732d9639610783bb.tar.bz2 qemu-kvm-97f90cbfe810bb153fc44bde732d9639610783bb.zip |
microblaze: HW Exception fixes.
* Correct PVR checks for masking off individual exceptions.
* Correct FPU exception code.
* Set EAR on unaligned and unassigned exceptions.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-microblaze')
-rw-r--r-- | target-microblaze/op_helper.c | 20 | ||||
-rw-r--r-- | target-microblaze/translate.c | 20 |
2 files changed, 21 insertions, 19 deletions
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c index 89dbc0c0e..ee4f62313 100644 --- a/target-microblaze/op_helper.c +++ b/target-microblaze/op_helper.c @@ -209,17 +209,18 @@ uint32_t helper_pcmpbf(uint32_t a, uint32_t b) void helper_memalign(uint32_t addr, uint32_t dr, uint32_t wr, uint32_t mask) { if (addr & mask) { - qemu_log("unaligned access addr=%x mask=%x, wr=%d\n", - addr, mask, wr); - if (!(env->sregs[SR_MSR] & MSR_EE)) { - return; - } - + qemu_log_mask(CPU_LOG_INT, + "unaligned access addr=%x mask=%x, wr=%d dr=r%d\n", + addr, mask, wr, dr); + env->sregs[SR_EAR] = addr; env->sregs[SR_ESR] = ESR_EC_UNALIGNED_DATA | (wr << 10) \ | (dr & 31) << 5; if (mask == 3) { env->sregs[SR_ESR] |= 1 << 11; } + if (!(env->sregs[SR_MSR] & MSR_EE)) { + return; + } helper_raise_exception(EXCP_HW_EXCP); } } @@ -245,19 +246,20 @@ void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, generated code */ saved_env = env; env = cpu_single_env; - qemu_log("Unassigned " TARGET_FMT_plx " wr=%d exe=%d\n", + qemu_log_mask(CPU_LOG_INT, "Unassigned " TARGET_FMT_plx " wr=%d exe=%d\n", addr, is_write, is_exec); if (!(env->sregs[SR_MSR] & MSR_EE)) { return; } + env->sregs[SR_EAR] = addr; if (is_exec) { - if (!(env->pvr.regs[2] & PVR2_IOPB_BUS_EXC_MASK)) { + if ((env->pvr.regs[2] & PVR2_IOPB_BUS_EXC_MASK)) { env->sregs[SR_ESR] = ESR_EC_INSN_BUS; helper_raise_exception(EXCP_HW_EXCP); } } else { - if (!(env->pvr.regs[2] & PVR2_DOPB_BUS_EXC_MASK)) { + if ((env->pvr.regs[2] & PVR2_DOPB_BUS_EXC_MASK)) { env->sregs[SR_ESR] = ESR_EC_DATA_BUS; helper_raise_exception(EXCP_HW_EXCP); } diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index bb37f04ed..79f12163e 100644 --- a/target-microblaze/translate.c +++ b/target-microblaze/translate.c @@ -232,7 +232,7 @@ static void dec_pattern(DisasContext *dc) int l1; if ((dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) && !((dc->env->pvr.regs[2] & PVR2_USE_PCMP_INSTR))) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); @@ -553,7 +553,7 @@ static void dec_mul(DisasContext *dc) unsigned int subcode; if ((dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) && !(dc->env->pvr.regs[0] & PVR0_USE_HW_MUL_MASK)) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); @@ -610,7 +610,7 @@ static void dec_div(DisasContext *dc) u = dc->imm & 2; LOG_DIS("div\n"); - if (!(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) + if ((dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) && !((dc->env->pvr.regs[0] & PVR0_USE_DIV_MASK))) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); @@ -630,7 +630,7 @@ static void dec_barrel(DisasContext *dc) unsigned int s, t; if ((dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) && !(dc->env->pvr.regs[0] & PVR0_USE_BARREL_MASK)) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); @@ -804,7 +804,7 @@ static void dec_load(DisasContext *dc) size = 1 << (dc->opcode & 3); if (size > 4 && (dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) { + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); return; @@ -856,7 +856,7 @@ static void dec_store(DisasContext *dc) size = 1 << (dc->opcode & 3); if (size > 4 && (dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) { + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); return; @@ -1112,9 +1112,9 @@ static void dec_rts(DisasContext *dc) static void dec_fpu(DisasContext *dc) { if ((dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) && !((dc->env->pvr.regs[2] & PVR2_USE_FPU_MASK))) { - tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); + tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_FPU); t_gen_raise_exception(dc, EXCP_HW_EXCP); return; } @@ -1171,8 +1171,8 @@ static inline void decode(DisasContext *dc) dc->nr_nops = 0; else { if ((dc->tb_flags & MSR_EE_FLAG) - && !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) - && !(dc->env->pvr.regs[2] & PVR2_OPCODE_0x0_ILL_MASK)) { + && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK) + && (dc->env->pvr.regs[2] & PVR2_OPCODE_0x0_ILL_MASK)) { tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP); t_gen_raise_exception(dc, EXCP_HW_EXCP); return; |