From a8a826a3c3b8c8a1c4def0e9e22b46e78e6163a0 Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Tue, 4 Dec 2012 20:16:07 +0000 Subject: [PATCH] exec: refactor cpu_restore_state Refactor common code around calls to cpu_restore_state(). tb_find_pc() has now no external users, make it static. Signed-off-by: Blue Swirl --- exec-all.h | 6 ++---- hw/kvmvapic.c | 4 +--- target-alpha/helper.c | 14 +++----------- target-alpha/mem_helper.c | 8 ++++++-- target-arm/op_helper.c | 8 +------- target-cris/op_helper.c | 8 +------- target-i386/helper.c | 5 +---- target-i386/mem_helper.c | 8 +------- target-lm32/op_helper.c | 8 +------- target-m68k/op_helper.c | 8 +------- target-microblaze/op_helper.c | 8 +------- target-mips/op_helper.c | 8 +------- target-openrisc/mmu_helper.c | 10 +--------- target-ppc/mem_helper.c | 8 +------- target-s390x/mem_helper.c | 8 +------- target-sh4/op_helper.c | 23 ++++++----------------- target-sparc/cpu.h | 1 - target-sparc/helper.c | 12 ++++++------ target-sparc/ldst_helper.c | 24 ++++++------------------ target-unicore32/op_helper.c | 9 +-------- target-xtensa/op_helper.c | 14 ++------------ translate-all.c | 27 ++++++++++++++++++++------- user-exec.c | 8 +------- 23 files changed, 65 insertions(+), 172 deletions(-) diff --git a/exec-all.h b/exec-all.h index b18d4ca534..e9b07cd986 100644 --- a/exec-all.h +++ b/exec-all.h @@ -80,8 +80,8 @@ void restore_state_to_opc(CPUArchState *env, struct TranslationBlock *tb, void cpu_gen_init(void); int cpu_gen_code(CPUArchState *env, struct TranslationBlock *tb, int *gen_code_size_ptr); -int cpu_restore_state(struct TranslationBlock *tb, - CPUArchState *env, uintptr_t searched_pc); +bool cpu_restore_state(CPUArchState *env, uintptr_t searched_pc); + void QEMU_NORETURN cpu_resume_from_signal(CPUArchState *env1, void *puc); void QEMU_NORETURN cpu_io_recompile(CPUArchState *env, uintptr_t retaddr); TranslationBlock *tb_gen_code(CPUArchState *env, @@ -275,8 +275,6 @@ static inline void tb_add_jump(TranslationBlock *tb, int n, } } -TranslationBlock *tb_find_pc(uintptr_t pc_ptr); - #include "qemu-lock.h" extern spinlock_t tb_lock; diff --git a/hw/kvmvapic.c b/hw/kvmvapic.c index e04c4011d7..60c8fc46aa 100644 --- a/hw/kvmvapic.c +++ b/hw/kvmvapic.c @@ -387,7 +387,6 @@ static void patch_instruction(VAPICROMState *s, CPUX86State *env, target_ulong i VAPICHandlers *handlers; uint8_t opcode[2]; uint32_t imm32; - TranslationBlock *current_tb; target_ulong current_pc = 0; target_ulong current_cs_base = 0; int current_flags = 0; @@ -399,8 +398,7 @@ static void patch_instruction(VAPICROMState *s, CPUX86State *env, target_ulong i } if (!kvm_enabled()) { - current_tb = tb_find_pc(env->mem_io_pc); - cpu_restore_state(current_tb, env, env->mem_io_pc); + cpu_restore_state(env, env->mem_io_pc); cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, ¤t_flags); } diff --git a/target-alpha/helper.c b/target-alpha/helper.c index d9d7f75b58..2430f70aca 100644 --- a/target-alpha/helper.c +++ b/target-alpha/helper.c @@ -494,16 +494,6 @@ void cpu_dump_state (CPUAlphaState *env, FILE *f, fprintf_function cpu_fprintf, cpu_fprintf(f, "\n"); } -void do_restore_state(CPUAlphaState *env, uintptr_t retaddr) -{ - if (retaddr) { - TranslationBlock *tb = tb_find_pc(retaddr); - if (tb) { - cpu_restore_state(tb, env, retaddr); - } - } -} - /* This should only be called from translate, via gen_excp. We expect that ENV->PC has already been updated. */ void QEMU_NORETURN helper_excp(CPUAlphaState *env, int excp, int error) @@ -519,7 +509,9 @@ void QEMU_NORETURN dynamic_excp(CPUAlphaState *env, uintptr_t retaddr, { env->exception_index = excp; env->error_code = error; - do_restore_state(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } cpu_loop_exit(env); } diff --git a/target-alpha/mem_helper.c b/target-alpha/mem_helper.c index 617836cc6c..64b33f6518 100644 --- a/target-alpha/mem_helper.c +++ b/target-alpha/mem_helper.c @@ -94,7 +94,9 @@ static void do_unaligned_access(CPUAlphaState *env, target_ulong addr, uint64_t pc; uint32_t insn; - do_restore_state(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } pc = env->pc; insn = cpu_ldl_code(env, pc); @@ -143,7 +145,9 @@ void tlb_fill(CPUAlphaState *env, target_ulong addr, int is_write, ret = cpu_alpha_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret != 0)) { - do_restore_state(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } /* Exception index and error code are already set */ cpu_loop_exit(env); } diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index 6e3ab90e3b..1fcc975945 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -74,19 +74,13 @@ uint32_t HELPER(neon_tbl)(CPUARMState *env, uint32_t ireg, uint32_t def, void tlb_fill(CPUARMState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_arm_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } raise_exception(env, env->exception_index); } diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c index a7468d41c6..31db42494d 100644 --- a/target-cris/op_helper.c +++ b/target-cris/op_helper.c @@ -57,7 +57,6 @@ void tlb_fill(CPUCRISState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; D_LOG("%s pc=%x tpc=%x ra=%p\n", __func__, @@ -66,12 +65,7 @@ void tlb_fill(CPUCRISState *env, target_ulong addr, int is_write, int mmu_idx, if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - + if (cpu_restore_state(env, retaddr)) { /* Evaluate flags after retranslation. */ helper_top_evaluate_flags(env); } diff --git a/target-i386/helper.c b/target-i386/helper.c index bf206cfa97..00341c5233 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -1196,15 +1196,12 @@ void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank, void cpu_report_tpr_access(CPUX86State *env, TPRAccess access) { - TranslationBlock *tb; - if (kvm_enabled()) { env->tpr_access_type = access; cpu_interrupt(env, CPU_INTERRUPT_TPR); } else { - tb = tb_find_pc(env->mem_io_pc); - cpu_restore_state(tb, env, env->mem_io_pc); + cpu_restore_state(env, env->mem_io_pc); apic_handle_tpr_access_report(env->apic_state, env->eip, access); } diff --git a/target-i386/mem_helper.c b/target-i386/mem_helper.c index 7f99c7cfe3..d0be77b1ed 100644 --- a/target-i386/mem_helper.c +++ b/target-i386/mem_helper.c @@ -135,19 +135,13 @@ void helper_boundl(CPUX86State *env, target_ulong a0, int v) void tlb_fill(CPUX86State *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_x86_handle_mmu_fault(env, addr, is_write, mmu_idx); if (ret) { if (retaddr) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } raise_exception_err(env, env->exception_index, env->error_code); } diff --git a/target-lm32/op_helper.c b/target-lm32/op_helper.c index 7b91d8c31e..97b9625c1a 100644 --- a/target-lm32/op_helper.c +++ b/target-lm32/op_helper.c @@ -76,19 +76,13 @@ uint32_t helper_rcsr_jrx(CPULM32State *env) void tlb_fill(CPULM32State *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } cpu_loop_exit(env); } diff --git a/target-m68k/op_helper.c b/target-m68k/op_helper.c index aa005048e1..b97ba5e28f 100644 --- a/target-m68k/op_helper.c +++ b/target-m68k/op_helper.c @@ -56,19 +56,13 @@ extern int semihosting_enabled; void tlb_fill(CPUM68KState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_m68k_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } cpu_loop_exit(env); } diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c index 210296b30b..7593517094 100644 --- a/target-microblaze/op_helper.c +++ b/target-microblaze/op_helper.c @@ -44,19 +44,13 @@ void tlb_fill(CPUMBState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_mb_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } cpu_loop_exit(env); } diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c index f45d494b14..2972ae3f0a 100644 --- a/target-mips/op_helper.c +++ b/target-mips/op_helper.c @@ -38,7 +38,6 @@ static inline void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, int error_code, uintptr_t pc) { - TranslationBlock *tb; #if 1 if (exception < 0x100) qemu_log("%s: %d %d\n", __func__, exception, error_code); @@ -48,12 +47,7 @@ static inline void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, if (pc) { /* now we have a real cpu fault */ - tb = tb_find_pc(pc); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, pc); - } + cpu_restore_state(env, pc); } cpu_loop_exit(env); diff --git a/target-openrisc/mmu_helper.c b/target-openrisc/mmu_helper.c index 59ed371ae0..d2edebcb49 100644 --- a/target-openrisc/mmu_helper.c +++ b/target-openrisc/mmu_helper.c @@ -39,8 +39,6 @@ void tlb_fill(CPUOpenRISCState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; - unsigned long pc; int ret; ret = cpu_openrisc_handle_mmu_fault(env, addr, is_write, mmu_idx); @@ -48,13 +46,7 @@ void tlb_fill(CPUOpenRISCState *env, target_ulong addr, int is_write, if (ret) { if (retaddr) { /* now we have a real cpu fault. */ - pc = (unsigned long)retaddr; - tb = tb_find_pc(pc); - if (tb) { - /* the PC is inside the translated code. It means that we - have a virtual CPU fault. */ - cpu_restore_state(tb, env, pc); - } + cpu_restore_state(env, retaddr); } /* Raise Exception. */ cpu_loop_exit(env); diff --git a/target-ppc/mem_helper.c b/target-ppc/mem_helper.c index 5b5f1bdd23..04c01445f9 100644 --- a/target-ppc/mem_helper.c +++ b/target-ppc/mem_helper.c @@ -275,19 +275,13 @@ STVE(stvewx, cpu_stl_data, bswap32, u32) void tlb_fill(CPUPPCState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret != 0)) { if (likely(retaddr)) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (likely(tb)) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } helper_raise_exception_err(env, env->exception_index, env->error_code); } diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c index 6ebc22dd11..91b25e309d 100644 --- a/target-s390x/mem_helper.c +++ b/target-s390x/mem_helper.c @@ -47,19 +47,13 @@ void tlb_fill(CPUS390XState *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; int ret; ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret != 0)) { if (likely(retaddr)) { /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (likely(tb)) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } + cpu_restore_state(env, retaddr); } cpu_loop_exit(env); } diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c index 60ec4cbc4d..e8e87f5152 100644 --- a/target-sh4/op_helper.c +++ b/target-sh4/op_helper.c @@ -21,21 +21,6 @@ #include "cpu.h" #include "helper.h" -static inline void cpu_restore_state_from_retaddr(CPUSH4State *env, - uintptr_t retaddr) -{ - TranslationBlock *tb; - - if (retaddr) { - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } - } -} - #ifndef CONFIG_USER_ONLY #include "softmmu_exec.h" @@ -61,7 +46,9 @@ void tlb_fill(CPUSH4State *env, target_ulong addr, int is_write, int mmu_idx, ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx); if (ret) { /* now we have a real cpu fault */ - cpu_restore_state_from_retaddr(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } cpu_loop_exit(env); } } @@ -82,7 +69,9 @@ static inline void QEMU_NORETURN raise_exception(CPUSH4State *env, int index, uintptr_t retaddr) { env->exception_index = index; - cpu_restore_state_from_retaddr(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } cpu_loop_exit(env); } diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 375f20a71e..013ecbd063 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -710,7 +710,6 @@ uint64_t cpu_tick_get_count(CPUTimer *timer); void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit); trap_state* cpu_tsptr(CPUSPARCState* env); #endif -void cpu_restore_state2(CPUSPARCState *env, uintptr_t retaddr); #define TB_FLAG_FPU_ENABLED (1 << 4) #define TB_FLAG_AM_ENABLED (1 << 5) diff --git a/target-sparc/helper.c b/target-sparc/helper.c index 556ac286eb..3c8e865eef 100644 --- a/target-sparc/helper.c +++ b/target-sparc/helper.c @@ -75,7 +75,7 @@ static target_ulong helper_udiv_common(CPUSPARCState *env, target_ulong a, x1 = (b & 0xffffffff); if (x1 == 0) { - cpu_restore_state2(env, GETPC()); + cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_DIV_ZERO); } @@ -114,7 +114,7 @@ static target_ulong helper_sdiv_common(CPUSPARCState *env, target_ulong a, x1 = (b & 0xffffffff); if (x1 == 0) { - cpu_restore_state2(env, GETPC()); + cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_DIV_ZERO); } @@ -147,7 +147,7 @@ int64_t helper_sdivx(CPUSPARCState *env, int64_t a, int64_t b) { if (b == 0) { /* Raise divide by zero trap. */ - cpu_restore_state2(env, GETPC()); + cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_DIV_ZERO); } else if (b == -1) { /* Avoid overflow trap with i386 divide insn. */ @@ -161,7 +161,7 @@ uint64_t helper_udivx(CPUSPARCState *env, uint64_t a, uint64_t b) { if (b == 0) { /* Raise divide by zero trap. */ - cpu_restore_state2(env, GETPC()); + cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_DIV_ZERO); } return a / b; @@ -193,7 +193,7 @@ target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1, return dst; tag_overflow: - cpu_restore_state2(env, GETPC()); + cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_TOVF); } @@ -222,6 +222,6 @@ target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1, return dst; tag_overflow: - cpu_restore_state2(env, GETPC()); + cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_TOVF); } diff --git a/target-sparc/ldst_helper.c b/target-sparc/ldst_helper.c index f3e08fd6e6..8d815e5038 100644 --- a/target-sparc/ldst_helper.c +++ b/target-sparc/ldst_helper.c @@ -2393,22 +2393,6 @@ void cpu_unassigned_access(CPUSPARCState *env, hwaddr addr, #endif #endif -/* XXX: make it generic ? */ -void cpu_restore_state2(CPUSPARCState *env, uintptr_t retaddr) -{ - TranslationBlock *tb; - - if (retaddr) { - /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } - } -} - #if !defined(CONFIG_USER_ONLY) static void QEMU_NORETURN do_unaligned_access(CPUSPARCState *env, target_ulong addr, int is_write, @@ -2418,7 +2402,9 @@ static void QEMU_NORETURN do_unaligned_access(CPUSPARCState *env, printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx "\n", addr, env->pc); #endif - cpu_restore_state2(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } helper_raise_exception(env, TT_UNALIGNED); } @@ -2433,7 +2419,9 @@ void tlb_fill(CPUSPARCState *env, target_ulong addr, int is_write, int mmu_idx, ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx); if (ret) { - cpu_restore_state2(env, retaddr); + if (retaddr) { + cpu_restore_state(env, retaddr); + } cpu_loop_exit(env); } } diff --git a/target-unicore32/op_helper.c b/target-unicore32/op_helper.c index f474d1b59b..b8172ba682 100644 --- a/target-unicore32/op_helper.c +++ b/target-unicore32/op_helper.c @@ -256,20 +256,13 @@ uint32_t HELPER(ror_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i) void tlb_fill(CPUUniCore32State *env, target_ulong addr, int is_write, int mmu_idx, uintptr_t retaddr) { - TranslationBlock *tb; - unsigned long pc; int ret; ret = uc32_cpu_handle_mmu_fault(env, addr, is_write, mmu_idx); if (unlikely(ret)) { if (retaddr) { /* now we have a real cpu fault */ - pc = (unsigned long)retaddr; - tb = tb_find_pc(pc); - if (tb) {/* the PC is inside the translated code. - It means that we have a virtual CPU fault */ - cpu_restore_state(tb, env, pc); - } + cpu_restore_state(env, retaddr); } cpu_loop_exit(env); } diff --git a/target-xtensa/op_helper.c b/target-xtensa/op_helper.c index 0e0f21d1a2..84f0449f79 100644 --- a/target-xtensa/op_helper.c +++ b/target-xtensa/op_helper.c @@ -47,22 +47,12 @@ static void do_unaligned_access(CPUXtensaState *env, #define SHIFT 3 #include "softmmu_template.h" -static void do_restore_state(CPUXtensaState *env, uintptr_t pc) -{ - TranslationBlock *tb; - - tb = tb_find_pc(pc); - if (tb) { - cpu_restore_state(tb, env, pc); - } -} - static void do_unaligned_access(CPUXtensaState *env, target_ulong addr, int is_write, int is_user, uintptr_t retaddr) { if (xtensa_option_enabled(env->config, XTENSA_OPTION_UNALIGNED_EXCEPTION) && !xtensa_option_enabled(env->config, XTENSA_OPTION_HW_ALIGNMENT)) { - do_restore_state(env, retaddr); + cpu_restore_state(env, retaddr); HELPER(exception_cause_vaddr)(env, env->pc, LOAD_STORE_ALIGNMENT_CAUSE, addr); } @@ -86,7 +76,7 @@ void tlb_fill(CPUXtensaState *env, paddr & TARGET_PAGE_MASK, access, mmu_idx, page_size); } else { - do_restore_state(env, retaddr); + cpu_restore_state(env, retaddr); HELPER(exception_cause_vaddr)(env, env->pc, ret, vaddr); } } diff --git a/translate-all.c b/translate-all.c index b958342a99..164870a68c 100644 --- a/translate-all.c +++ b/translate-all.c @@ -142,6 +142,7 @@ TCGContext tcg_ctx; static void tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, tb_page_addr_t phys_page2); +static TranslationBlock *tb_find_pc(uintptr_t tc_ptr); void cpu_gen_init(void) { @@ -211,8 +212,8 @@ int cpu_gen_code(CPUArchState *env, TranslationBlock *tb, int *gen_code_size_ptr /* The cpu state corresponding to 'searched_pc' is restored. */ -int cpu_restore_state(TranslationBlock *tb, - CPUArchState *env, uintptr_t searched_pc) +static int cpu_restore_state_from_tb(TranslationBlock *tb, CPUArchState *env, + uintptr_t searched_pc) { TCGContext *s = &tcg_ctx; int j; @@ -266,6 +267,18 @@ int cpu_restore_state(TranslationBlock *tb, return 0; } +bool cpu_restore_state(CPUArchState *env, uintptr_t retaddr) +{ + TranslationBlock *tb; + + tb = tb_find_pc(retaddr); + if (tb) { + cpu_restore_state_from_tb(tb, env, retaddr); + return true; + } + return false; +} + #ifdef _WIN32 static inline void map_exec(void *addr, long size) { @@ -1057,7 +1070,7 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end, restore the CPU state */ current_tb_modified = 1; - cpu_restore_state(current_tb, env, env->mem_io_pc); + cpu_restore_state_from_tb(current_tb, env, env->mem_io_pc); cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, ¤t_flags); } @@ -1171,7 +1184,7 @@ static void tb_invalidate_phys_page(tb_page_addr_t addr, restore the CPU state */ current_tb_modified = 1; - cpu_restore_state(current_tb, env, pc); + cpu_restore_state_from_tb(current_tb, env, pc); cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, ¤t_flags); } @@ -1308,7 +1321,7 @@ bool is_tcg_gen_code(uintptr_t tc_ptr) /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr < tb[1].tc_ptr. Return NULL if not found */ -TranslationBlock *tb_find_pc(uintptr_t tc_ptr) +static TranslationBlock *tb_find_pc(uintptr_t tc_ptr) { int m_min, m_max, m; uintptr_t v; @@ -1435,7 +1448,7 @@ void tb_check_watchpoint(CPUArchState *env) cpu_abort(env, "check_watchpoint: could not find TB for pc=%p", (void *)env->mem_io_pc); } - cpu_restore_state(tb, env, env->mem_io_pc); + cpu_restore_state_from_tb(tb, env, env->mem_io_pc); tb_phys_invalidate(tb, -1); } @@ -1486,7 +1499,7 @@ void cpu_io_recompile(CPUArchState *env, uintptr_t retaddr) (void *)retaddr); } n = env->icount_decr.u16.low + tb->icount; - cpu_restore_state(tb, env, retaddr); + cpu_restore_state_from_tb(tb, env, retaddr); /* Calculate how many instructions had been executed before the fault occurred. */ n = n - env->icount_decr.u16.low; diff --git a/user-exec.c b/user-exec.c index ef9b1727b3..1185cb03c8 100644 --- a/user-exec.c +++ b/user-exec.c @@ -81,7 +81,6 @@ static inline int handle_cpu_signal(uintptr_t pc, unsigned long address, int is_write, sigset_t *old_set, void *puc) { - TranslationBlock *tb; int ret; #if defined(DEBUG_SIGNAL) @@ -104,12 +103,7 @@ static inline int handle_cpu_signal(uintptr_t pc, unsigned long address, return 1; /* the MMU fault was handled without causing real CPU fault */ } /* now we have a real cpu fault */ - tb = tb_find_pc(pc); - if (tb) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, cpu_single_env, pc); - } + cpu_restore_state(cpu_single_env, pc); /* we restore the process signal mask as the sigreturn should do it (XXX: use sigsetjmp) */