From 2999a0b20074a7e4a58f56572bb1436749368f59 Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Sun, 29 Apr 2012 19:47:06 +0000 Subject: [PATCH] x86: avoid AREG0 in segmentation helpers Add an explicit CPUX86State parameter instead of relying on AREG0. Rename remains of op_helper.c to seg_helper.c. Signed-off-by: Blue Swirl --- target-i386/Makefile.objs | 1 - target-i386/helper.h | 38 ++++---- target-i386/seg_helper.c | 217 ++++++++++++++++++++++------------------------ target-i386/translate.c | 54 ++++++------ 4 files changed, 150 insertions(+), 160 deletions(-) diff --git a/target-i386/Makefile.objs b/target-i386/Makefile.objs index 13a7f6a..71d7d3b 100644 --- a/target-i386/Makefile.objs +++ b/target-i386/Makefile.objs @@ -8,4 +8,3 @@ obj-$(CONFIG_LINUX_USER) += ioport-user.o obj-$(CONFIG_BSD_USER) += ioport-user.o $(obj)/mem_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS) -$(obj)/seg_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS) diff --git a/target-i386/helper.h b/target-i386/helper.h index 9a9c064..0f02103 100644 --- a/target-i386/helper.h +++ b/target-i386/helper.h @@ -28,19 +28,19 @@ DEF_HELPER_1(aas, void, env) DEF_HELPER_1(daa, void, env) DEF_HELPER_1(das, void, env) -DEF_HELPER_1(lsl, tl, tl) -DEF_HELPER_1(lar, tl, tl) -DEF_HELPER_1(verr, void, tl) -DEF_HELPER_1(verw, void, tl) -DEF_HELPER_1(lldt, void, int) -DEF_HELPER_1(ltr, void, int) -DEF_HELPER_2(load_seg, void, int, int) -DEF_HELPER_3(ljmp_protected, void, int, tl, int) -DEF_HELPER_4(lcall_real, void, int, tl, int, int) -DEF_HELPER_4(lcall_protected, void, int, tl, int, int) -DEF_HELPER_1(iret_real, void, int) -DEF_HELPER_2(iret_protected, void, int, int) -DEF_HELPER_2(lret_protected, void, int, int) +DEF_HELPER_2(lsl, tl, env, tl) +DEF_HELPER_2(lar, tl, env, tl) +DEF_HELPER_2(verr, void, env, tl) +DEF_HELPER_2(verw, void, env, tl) +DEF_HELPER_2(lldt, void, env, int) +DEF_HELPER_2(ltr, void, env, int) +DEF_HELPER_3(load_seg, void, env, int, int) +DEF_HELPER_4(ljmp_protected, void, env, int, tl, int) +DEF_HELPER_5(lcall_real, void, env, int, tl, int, int) +DEF_HELPER_5(lcall_protected, void, env, int, tl, int, int) +DEF_HELPER_2(iret_real, void, env, int) +DEF_HELPER_3(iret_protected, void, env, int, int) +DEF_HELPER_3(lret_protected, void, env, int, int) DEF_HELPER_2(read_crN, tl, env, int) DEF_HELPER_3(write_crN, void, env, int, tl) DEF_HELPER_2(lmsw, void, env, tl) @@ -48,15 +48,15 @@ DEF_HELPER_1(clts, void, env) DEF_HELPER_3(movl_drN_T0, void, env, int, tl) DEF_HELPER_2(invlpg, void, env, tl) -DEF_HELPER_3(enter_level, void, int, int, tl) +DEF_HELPER_4(enter_level, void, env, int, int, tl) #ifdef TARGET_X86_64 -DEF_HELPER_3(enter64_level, void, int, int, tl) +DEF_HELPER_4(enter64_level, void, env, int, int, tl) #endif -DEF_HELPER_0(sysenter, void) -DEF_HELPER_1(sysexit, void, int) +DEF_HELPER_1(sysenter, void, env) +DEF_HELPER_2(sysexit, void, env, int) #ifdef TARGET_X86_64 -DEF_HELPER_1(syscall, void, int) -DEF_HELPER_1(sysret, void, int) +DEF_HELPER_2(syscall, void, env, int) +DEF_HELPER_2(sysret, void, env, int) #endif DEF_HELPER_2(hlt, void, env, int) DEF_HELPER_2(monitor, void, env, tl) diff --git a/target-i386/seg_helper.c b/target-i386/seg_helper.c index f5dcf01..f136128 100644 --- a/target-i386/seg_helper.c +++ b/target-i386/seg_helper.c @@ -19,7 +19,6 @@ */ #include "cpu.h" -#include "dyngen-exec.h" #include "qemu-log.h" #include "helper.h" @@ -35,8 +34,8 @@ #endif /* return non zero if error */ -static inline int load_segment(uint32_t *e1_ptr, uint32_t *e2_ptr, - int selector) +static inline int load_segment(CPUX86State *env, uint32_t *e1_ptr, + uint32_t *e2_ptr, int selector) { SegmentCache *dt; int index; @@ -82,14 +81,14 @@ static inline void load_seg_cache_raw_dt(SegmentCache *sc, uint32_t e1, } /* init the segment cache in vm86 mode. */ -static inline void load_seg_vm(int seg, int selector) +static inline void load_seg_vm(CPUX86State *env, int seg, int selector) { selector &= 0xffff; cpu_x86_load_seg_cache(env, seg, selector, (selector << 4), 0xffff, 0); } -static inline void get_ss_esp_from_tss(uint32_t *ss_ptr, +static inline void get_ss_esp_from_tss(CPUX86State *env, uint32_t *ss_ptr, uint32_t *esp_ptr, int dpl) { int type, index, shift; @@ -130,13 +129,13 @@ static inline void get_ss_esp_from_tss(uint32_t *ss_ptr, } /* XXX: merge with load_seg() */ -static void tss_load_seg(int seg_reg, int selector) +static void tss_load_seg(CPUX86State *env, int seg_reg, int selector) { uint32_t e1, e2; int rpl, dpl, cpl; if ((selector & 0xfffc) != 0) { - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { raise_exception_err(env, EXCP0A_TSS, selector & 0xfffc); } if (!(e2 & DESC_S_MASK)) { @@ -195,7 +194,7 @@ static void tss_load_seg(int seg_reg, int selector) #define SWITCH_TSS_CALL 2 /* XXX: restore CPU state in registers (PowerPC case) */ -static void switch_tss(int tss_selector, +static void switch_tss(CPUX86State *env, int tss_selector, uint32_t e1, uint32_t e2, int source, uint32_t next_eip) { @@ -221,7 +220,7 @@ static void switch_tss(int tss_selector, if (tss_selector & 4) { raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); } - if (load_segment(&e1, &e2, tss_selector) != 0) { + if (load_segment(env, &e1, &e2, tss_selector) != 0) { raise_exception_err(env, EXCP0D_GPF, tss_selector & 0xfffc); } if (e2 & DESC_S_MASK) { @@ -403,7 +402,7 @@ static void switch_tss(int tss_selector, EDI = new_regs[7]; if (new_eflags & VM_MASK) { for (i = 0; i < 6; i++) { - load_seg_vm(i, new_segs[i]); + load_seg_vm(env, i, new_segs[i]); } /* in vm86, CPL is always 3 */ cpu_x86_set_cpl(env, 3); @@ -446,12 +445,12 @@ static void switch_tss(int tss_selector, /* load the segments */ if (!(new_eflags & VM_MASK)) { - tss_load_seg(R_CS, new_segs[R_CS]); - tss_load_seg(R_SS, new_segs[R_SS]); - tss_load_seg(R_ES, new_segs[R_ES]); - tss_load_seg(R_DS, new_segs[R_DS]); - tss_load_seg(R_FS, new_segs[R_FS]); - tss_load_seg(R_GS, new_segs[R_GS]); + tss_load_seg(env, R_CS, new_segs[R_CS]); + tss_load_seg(env, R_SS, new_segs[R_SS]); + tss_load_seg(env, R_ES, new_segs[R_ES]); + tss_load_seg(env, R_DS, new_segs[R_DS]); + tss_load_seg(env, R_FS, new_segs[R_FS]); + tss_load_seg(env, R_GS, new_segs[R_GS]); } /* check that EIP is in the CS segment limits */ @@ -545,8 +544,9 @@ static int exception_has_error_code(int intno) } /* protected mode interrupt */ -static void do_interrupt_protected(int intno, int is_int, int error_code, - unsigned int next_eip, int is_hw) +static void do_interrupt_protected(CPUX86State *env, int intno, int is_int, + int error_code, unsigned int next_eip, + int is_hw) { SegmentCache *dt; target_ulong ptr, ssp; @@ -580,7 +580,7 @@ static void do_interrupt_protected(int intno, int is_int, int error_code, if (!(e2 & DESC_P_MASK)) { raise_exception_err(env, EXCP0B_NOSEG, intno * 8 + 2); } - switch_tss(intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip); + switch_tss(env, intno * 8, e1, e2, SWITCH_TSS_CALL, old_eip); if (has_error_code) { int type; uint32_t mask; @@ -627,7 +627,7 @@ static void do_interrupt_protected(int intno, int is_int, int error_code, if ((selector & 0xfffc) == 0) { raise_exception_err(env, EXCP0D_GPF, 0); } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); } if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK))) { @@ -642,14 +642,14 @@ static void do_interrupt_protected(int intno, int is_int, int error_code, } if (!(e2 & DESC_C_MASK) && dpl < cpl) { /* to inner privilege */ - get_ss_esp_from_tss(&ss, &esp, dpl); + get_ss_esp_from_tss(env, &ss, &esp, dpl); if ((ss & 0xfffc) == 0) { raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); } if ((ss & 3) != dpl) { raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); } - if (load_segment(&ss_e1, &ss_e2, ss) != 0) { + if (load_segment(env, &ss_e1, &ss_e2, ss) != 0) { raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); } ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3; @@ -773,7 +773,7 @@ static void do_interrupt_protected(int intno, int is_int, int error_code, sp += 8; \ } -static inline target_ulong get_rsp_from_tss(int level) +static inline target_ulong get_rsp_from_tss(CPUX86State *env, int level) { int index; @@ -793,8 +793,8 @@ static inline target_ulong get_rsp_from_tss(int level) } /* 64 bit interrupt */ -static void do_interrupt64(int intno, int is_int, int error_code, - target_ulong next_eip, int is_hw) +static void do_interrupt64(CPUX86State *env, int intno, int is_int, + int error_code, target_ulong next_eip, int is_hw) { SegmentCache *dt; target_ulong ptr; @@ -848,7 +848,7 @@ static void do_interrupt64(int intno, int is_int, int error_code, raise_exception_err(env, EXCP0D_GPF, 0); } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); } if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK))) { @@ -867,9 +867,9 @@ static void do_interrupt64(int intno, int is_int, int error_code, if ((!(e2 & DESC_C_MASK) && dpl < cpl) || ist != 0) { /* to inner privilege */ if (ist != 0) { - esp = get_rsp_from_tss(ist + 3); + esp = get_rsp_from_tss(env, ist + 3); } else { - esp = get_rsp_from_tss(dpl); + esp = get_rsp_from_tss(env, dpl); } esp &= ~0xfLL; /* align stack */ ss = 0; @@ -881,7 +881,7 @@ static void do_interrupt64(int intno, int is_int, int error_code, } new_stack = 0; if (ist != 0) { - esp = get_rsp_from_tss(ist + 3); + esp = get_rsp_from_tss(env, ist + 3); } else { esp = ESP; } @@ -926,14 +926,14 @@ static void do_interrupt64(int intno, int is_int, int error_code, #ifdef TARGET_X86_64 #if defined(CONFIG_USER_ONLY) -void helper_syscall(int next_eip_addend) +void helper_syscall(CPUX86State *env, int next_eip_addend) { env->exception_index = EXCP_SYSCALL; env->exception_next_eip = env->eip + next_eip_addend; cpu_loop_exit(env); } #else -void helper_syscall(int next_eip_addend) +void helper_syscall(CPUX86State *env, int next_eip_addend) { int selector; @@ -990,7 +990,7 @@ void helper_syscall(int next_eip_addend) #endif #ifdef TARGET_X86_64 -void helper_sysret(int dflag) +void helper_sysret(CPUX86State *env, int dflag) { int cpl, selector; @@ -1047,8 +1047,8 @@ void helper_sysret(int dflag) #endif /* real mode interrupt */ -static void do_interrupt_real(int intno, int is_int, int error_code, - unsigned int next_eip) +static void do_interrupt_real(CPUX86State *env, int intno, int is_int, + int error_code, unsigned int next_eip) { SegmentCache *dt; target_ulong ptr, ssp; @@ -1087,8 +1087,8 @@ static void do_interrupt_real(int intno, int is_int, int error_code, #if defined(CONFIG_USER_ONLY) /* fake user mode interrupt */ -static void do_interrupt_user(int intno, int is_int, int error_code, - target_ulong next_eip) +static void do_interrupt_user(CPUX86State *env, int intno, int is_int, + int error_code, target_ulong next_eip) { SegmentCache *dt; target_ulong ptr; @@ -1121,8 +1121,8 @@ static void do_interrupt_user(int intno, int is_int, int error_code, #else -static void handle_even_inj(int intno, int is_int, int error_code, - int is_hw, int rm) +static void handle_even_inj(CPUX86State *env, int intno, int is_int, + int error_code, int is_hw, int rm) { uint32_t event_inj = ldl_phys(env->vm_vmcb + offsetof(struct vmcb, control.event_inj)); @@ -1153,8 +1153,8 @@ static void handle_even_inj(int intno, int is_int, int error_code, * the int instruction. next_eip is the EIP value AFTER the interrupt * instruction. It is only relevant if is_int is TRUE. */ -static void do_interrupt_all(int intno, int is_int, int error_code, - target_ulong next_eip, int is_hw) +static void do_interrupt_all(CPUX86State *env, int intno, int is_int, + int error_code, target_ulong next_eip, int is_hw) { if (qemu_loglevel_mask(CPU_LOG_INT)) { if ((env->cr[0] & CR0_PE_MASK)) { @@ -1193,24 +1193,25 @@ static void do_interrupt_all(int intno, int is_int, int error_code, if (env->cr[0] & CR0_PE_MASK) { #if !defined(CONFIG_USER_ONLY) if (env->hflags & HF_SVMI_MASK) { - handle_even_inj(intno, is_int, error_code, is_hw, 0); + handle_even_inj(env, intno, is_int, error_code, is_hw, 0); } #endif #ifdef TARGET_X86_64 if (env->hflags & HF_LMA_MASK) { - do_interrupt64(intno, is_int, error_code, next_eip, is_hw); + do_interrupt64(env, intno, is_int, error_code, next_eip, is_hw); } else #endif { - do_interrupt_protected(intno, is_int, error_code, next_eip, is_hw); + do_interrupt_protected(env, intno, is_int, error_code, next_eip, + is_hw); } } else { #if !defined(CONFIG_USER_ONLY) if (env->hflags & HF_SVMI_MASK) { - handle_even_inj(intno, is_int, error_code, is_hw, 1); + handle_even_inj(env, intno, is_int, error_code, is_hw, 1); } #endif - do_interrupt_real(intno, is_int, error_code, next_eip); + do_interrupt_real(env, intno, is_int, error_code, next_eip); } #if !defined(CONFIG_USER_ONLY) @@ -1225,17 +1226,13 @@ static void do_interrupt_all(int intno, int is_int, int error_code, #endif } -void do_interrupt(CPUX86State *env1) +void do_interrupt(CPUX86State *env) { - CPUX86State *saved_env; - - saved_env = env; - env = env1; #if defined(CONFIG_USER_ONLY) /* if user mode only, we simulate a fake exception which will be handled outside the cpu execution loop */ - do_interrupt_user(env->exception_index, + do_interrupt_user(env, env->exception_index, env->exception_is_int, env->error_code, env->exception_next_eip); @@ -1245,27 +1242,22 @@ void do_interrupt(CPUX86State *env1) /* simulate a real cpu exception. On i386, it can trigger new exceptions, but we do not handle double or triple faults yet. */ - do_interrupt_all(env->exception_index, + do_interrupt_all(env, env->exception_index, env->exception_is_int, env->error_code, env->exception_next_eip, 0); /* successfully delivered */ env->old_exception = -1; #endif - env = saved_env; } -void do_interrupt_x86_hardirq(CPUX86State *env1, int intno, int is_hw) +void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw) { - CPUX86State *saved_env; - - saved_env = env; - env = env1; - do_interrupt_all(intno, 0, 0, 0, is_hw); - env = saved_env; + do_interrupt_all(env, intno, 0, 0, 0, is_hw); } -void helper_enter_level(int level, int data32, target_ulong t1) +void helper_enter_level(CPUX86State *env, int level, int data32, + target_ulong t1) { target_ulong ssp; uint32_t esp_mask, esp, ebp; @@ -1300,7 +1292,8 @@ void helper_enter_level(int level, int data32, target_ulong t1) } #ifdef TARGET_X86_64 -void helper_enter64_level(int level, int data64, target_ulong t1) +void helper_enter64_level(CPUX86State *env, int level, int data64, + target_ulong t1) { target_ulong esp, ebp; @@ -1331,7 +1324,7 @@ void helper_enter64_level(int level, int data64, target_ulong t1) } #endif -void helper_lldt(int selector) +void helper_lldt(CPUX86State *env, int selector) { SegmentCache *dt; uint32_t e1, e2; @@ -1385,7 +1378,7 @@ void helper_lldt(int selector) env->ldt.selector = selector; } -void helper_ltr(int selector) +void helper_ltr(CPUX86State *env, int selector) { SegmentCache *dt; uint32_t e1, e2; @@ -1449,7 +1442,7 @@ void helper_ltr(int selector) } /* only works if protected mode and not VM86. seg_reg must be != R_CS */ -void helper_load_seg(int seg_reg, int selector) +void helper_load_seg(CPUX86State *env, int seg_reg, int selector) { uint32_t e1, e2; int cpl, dpl, rpl; @@ -1537,7 +1530,7 @@ void helper_load_seg(int seg_reg, int selector) } /* protected mode jump */ -void helper_ljmp_protected(int new_cs, target_ulong new_eip, +void helper_ljmp_protected(CPUX86State *env, int new_cs, target_ulong new_eip, int next_eip_addend) { int gate_cs, type; @@ -1547,7 +1540,7 @@ void helper_ljmp_protected(int new_cs, target_ulong new_eip, if ((new_cs & 0xfffc) == 0) { raise_exception_err(env, EXCP0D_GPF, 0); } - if (load_segment(&e1, &e2, new_cs) != 0) { + if (load_segment(env, &e1, &e2, new_cs) != 0) { raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); } cpl = env->hflags & HF_CPL_MASK; @@ -1596,7 +1589,7 @@ void helper_ljmp_protected(int new_cs, target_ulong new_eip, raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); } next_eip = env->eip + next_eip_addend; - switch_tss(new_cs, e1, e2, SWITCH_TSS_JMP, next_eip); + switch_tss(env, new_cs, e1, e2, SWITCH_TSS_JMP, next_eip); CC_OP = CC_OP_EFLAGS; break; case 4: /* 286 call gate */ @@ -1612,7 +1605,7 @@ void helper_ljmp_protected(int new_cs, target_ulong new_eip, if (type == 12) { new_eip |= (e2 & 0xffff0000); } - if (load_segment(&e1, &e2, gate_cs) != 0) { + if (load_segment(env, &e1, &e2, gate_cs) != 0) { raise_exception_err(env, EXCP0D_GPF, gate_cs & 0xfffc); } dpl = (e2 >> DESC_DPL_SHIFT) & 3; @@ -1644,7 +1637,7 @@ void helper_ljmp_protected(int new_cs, target_ulong new_eip, } /* real mode call */ -void helper_lcall_real(int new_cs, target_ulong new_eip1, +void helper_lcall_real(CPUX86State *env, int new_cs, target_ulong new_eip1, int shift, int next_eip) { int new_eip; @@ -1670,7 +1663,7 @@ void helper_lcall_real(int new_cs, target_ulong new_eip1, } /* protected mode call */ -void helper_lcall_protected(int new_cs, target_ulong new_eip, +void helper_lcall_protected(CPUX86State *env, int new_cs, target_ulong new_eip, int shift, int next_eip_addend) { int new_stack, i; @@ -1685,7 +1678,7 @@ void helper_lcall_protected(int new_cs, target_ulong new_eip, if ((new_cs & 0xfffc) == 0) { raise_exception_err(env, EXCP0D_GPF, 0); } - if (load_segment(&e1, &e2, new_cs) != 0) { + if (load_segment(env, &e1, &e2, new_cs) != 0) { raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); } cpl = env->hflags & HF_CPL_MASK; @@ -1765,7 +1758,7 @@ void helper_lcall_protected(int new_cs, target_ulong new_eip, if (dpl < cpl || dpl < rpl) { raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); } - switch_tss(new_cs, e1, e2, SWITCH_TSS_CALL, next_eip); + switch_tss(env, new_cs, e1, e2, SWITCH_TSS_CALL, next_eip); CC_OP = CC_OP_EFLAGS; return; case 4: /* 286 call gate */ @@ -1791,7 +1784,7 @@ void helper_lcall_protected(int new_cs, target_ulong new_eip, raise_exception_err(env, EXCP0D_GPF, 0); } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { raise_exception_err(env, EXCP0D_GPF, selector & 0xfffc); } if (!(e2 & DESC_S_MASK) || !(e2 & (DESC_CS_MASK))) { @@ -1807,7 +1800,7 @@ void helper_lcall_protected(int new_cs, target_ulong new_eip, if (!(e2 & DESC_C_MASK) && dpl < cpl) { /* to inner privilege */ - get_ss_esp_from_tss(&ss, &sp, dpl); + get_ss_esp_from_tss(env, &ss, &sp, dpl); LOG_PCALL("new ss:esp=%04x:%08x param_count=%d ESP=" TARGET_FMT_lx "\n", ss, sp, param_count, ESP); @@ -1817,7 +1810,7 @@ void helper_lcall_protected(int new_cs, target_ulong new_eip, if ((ss & 3) != dpl) { raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); } - if (load_segment(&ss_e1, &ss_e2, ss) != 0) { + if (load_segment(env, &ss_e1, &ss_e2, ss) != 0) { raise_exception_err(env, EXCP0A_TSS, ss & 0xfffc); } ss_dpl = (ss_e2 >> DESC_DPL_SHIFT) & 3; @@ -1897,7 +1890,7 @@ void helper_lcall_protected(int new_cs, target_ulong new_eip, } /* real and vm86 mode iret */ -void helper_iret_real(int shift) +void helper_iret_real(CPUX86State *env, int shift) { uint32_t sp, new_cs, new_eip, new_eflags, sp_mask; target_ulong ssp; @@ -1936,7 +1929,7 @@ void helper_iret_real(int shift) env->hflags2 &= ~HF2_NMI_MASK; } -static inline void validate_seg(int seg_reg, int cpl) +static inline void validate_seg(CPUX86State *env, int seg_reg, int cpl) { int dpl; uint32_t e2; @@ -1960,7 +1953,8 @@ static inline void validate_seg(int seg_reg, int cpl) } /* protected mode iret */ -static inline void helper_ret_protected(int shift, int is_iret, int addend) +static inline void helper_ret_protected(CPUX86State *env, int shift, + int is_iret, int addend) { uint32_t new_cs, new_eflags, new_ss; uint32_t new_es, new_ds, new_fs, new_gs; @@ -2016,7 +2010,7 @@ static inline void helper_ret_protected(int shift, int is_iret, int addend) if ((new_cs & 0xfffc) == 0) { raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); } - if (load_segment(&e1, &e2, new_cs) != 0) { + if (load_segment(env, &e1, &e2, new_cs) != 0) { raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc); } if (!(e2 & DESC_S_MASK) || @@ -2093,7 +2087,7 @@ static inline void helper_ret_protected(int shift, int is_iret, int addend) if ((new_ss & 3) != rpl) { raise_exception_err(env, EXCP0D_GPF, new_ss & 0xfffc); } - if (load_segment(&ss_e1, &ss_e2, new_ss) != 0) { + if (load_segment(env, &ss_e1, &ss_e2, new_ss) != 0) { raise_exception_err(env, EXCP0D_GPF, new_ss & 0xfffc); } if (!(ss_e2 & DESC_S_MASK) || @@ -2130,10 +2124,10 @@ static inline void helper_ret_protected(int shift, int is_iret, int addend) } /* validate data segments */ - validate_seg(R_ES, rpl); - validate_seg(R_DS, rpl); - validate_seg(R_FS, rpl); - validate_seg(R_GS, rpl); + validate_seg(env, R_ES, rpl); + validate_seg(env, R_DS, rpl); + validate_seg(env, R_FS, rpl); + validate_seg(env, R_GS, rpl); sp += addend; } @@ -2168,19 +2162,19 @@ static inline void helper_ret_protected(int shift, int is_iret, int addend) cpu_load_eflags(env, new_eflags, TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK | VM_MASK | NT_MASK | VIF_MASK | VIP_MASK); - load_seg_vm(R_CS, new_cs & 0xffff); + load_seg_vm(env, R_CS, new_cs & 0xffff); cpu_x86_set_cpl(env, 3); - load_seg_vm(R_SS, new_ss & 0xffff); - load_seg_vm(R_ES, new_es & 0xffff); - load_seg_vm(R_DS, new_ds & 0xffff); - load_seg_vm(R_FS, new_fs & 0xffff); - load_seg_vm(R_GS, new_gs & 0xffff); + load_seg_vm(env, R_SS, new_ss & 0xffff); + load_seg_vm(env, R_ES, new_es & 0xffff); + load_seg_vm(env, R_DS, new_ds & 0xffff); + load_seg_vm(env, R_FS, new_fs & 0xffff); + load_seg_vm(env, R_GS, new_gs & 0xffff); env->eip = new_eip & 0xffff; ESP = new_esp; } -void helper_iret_protected(int shift, int next_eip) +void helper_iret_protected(CPUX86State *env, int shift, int next_eip) { int tss_selector, type; uint32_t e1, e2; @@ -2196,7 +2190,7 @@ void helper_iret_protected(int shift, int next_eip) if (tss_selector & 4) { raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); } - if (load_segment(&e1, &e2, tss_selector) != 0) { + if (load_segment(env, &e1, &e2, tss_selector) != 0) { raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); } type = (e2 >> DESC_TYPE_SHIFT) & 0x17; @@ -2204,19 +2198,19 @@ void helper_iret_protected(int shift, int next_eip) if (type != 3) { raise_exception_err(env, EXCP0A_TSS, tss_selector & 0xfffc); } - switch_tss(tss_selector, e1, e2, SWITCH_TSS_IRET, next_eip); + switch_tss(env, tss_selector, e1, e2, SWITCH_TSS_IRET, next_eip); } else { - helper_ret_protected(shift, 1, 0); + helper_ret_protected(env, shift, 1, 0); } env->hflags2 &= ~HF2_NMI_MASK; } -void helper_lret_protected(int shift, int addend) +void helper_lret_protected(CPUX86State *env, int shift, int addend) { - helper_ret_protected(shift, 0, addend); + helper_ret_protected(env, shift, 0, addend); } -void helper_sysenter(void) +void helper_sysenter(CPUX86State *env) { if (env->sysenter_cs == 0) { raise_exception_err(env, EXCP0D_GPF, 0); @@ -2250,7 +2244,7 @@ void helper_sysenter(void) EIP = env->sysenter_eip; } -void helper_sysexit(int dflag) +void helper_sysexit(CPUX86State *env, int dflag) { int cpl; @@ -2290,7 +2284,7 @@ void helper_sysexit(int dflag) EIP = EDX; } -target_ulong helper_lsl(target_ulong selector1) +target_ulong helper_lsl(CPUX86State *env, target_ulong selector1) { unsigned int limit; uint32_t e1, e2, eflags, selector; @@ -2301,7 +2295,7 @@ target_ulong helper_lsl(target_ulong selector1) if ((selector & 0xfffc) == 0) { goto fail; } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { goto fail; } rpl = selector & 3; @@ -2338,7 +2332,7 @@ target_ulong helper_lsl(target_ulong selector1) return limit; } -target_ulong helper_lar(target_ulong selector1) +target_ulong helper_lar(CPUX86State *env, target_ulong selector1) { uint32_t e1, e2, eflags, selector; int rpl, dpl, cpl, type; @@ -2348,7 +2342,7 @@ target_ulong helper_lar(target_ulong selector1) if ((selector & 0xfffc) == 0) { goto fail; } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { goto fail; } rpl = selector & 3; @@ -2387,7 +2381,7 @@ target_ulong helper_lar(target_ulong selector1) return e2 & 0x00f0ff00; } -void helper_verr(target_ulong selector1) +void helper_verr(CPUX86State *env, target_ulong selector1) { uint32_t e1, e2, eflags, selector; int rpl, dpl, cpl; @@ -2397,7 +2391,7 @@ void helper_verr(target_ulong selector1) if ((selector & 0xfffc) == 0) { goto fail; } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { goto fail; } if (!(e2 & DESC_S_MASK)) { @@ -2425,7 +2419,7 @@ void helper_verr(target_ulong selector1) CC_SRC = eflags | CC_Z; } -void helper_verw(target_ulong selector1) +void helper_verw(CPUX86State *env, target_ulong selector1) { uint32_t e1, e2, eflags, selector; int rpl, dpl, cpl; @@ -2435,7 +2429,7 @@ void helper_verw(target_ulong selector1) if ((selector & 0xfffc) == 0) { goto fail; } - if (load_segment(&e1, &e2, selector) != 0) { + if (load_segment(env, &e1, &e2, selector) != 0) { goto fail; } if (!(e2 & DESC_S_MASK)) { @@ -2460,19 +2454,14 @@ void helper_verw(target_ulong selector1) } #if defined(CONFIG_USER_ONLY) -void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector) +void cpu_x86_load_seg(CPUX86State *env, int seg_reg, int selector) { - CPUX86State *saved_env; - - saved_env = env; - env = s; if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) { selector &= 0xffff; cpu_x86_load_seg_cache(env, seg_reg, selector, (selector << 4), 0xffff, 0); } else { - helper_load_seg(seg_reg, selector); + helper_load_seg(env, seg_reg, selector); } - env = saved_env; } #endif diff --git a/target-i386/translate.c b/target-i386/translate.c index a4c2ae0..26091f9 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -2443,7 +2443,7 @@ static void gen_movl_seg_T0(DisasContext *s, int seg_reg, target_ulong cur_eip) gen_op_set_cc_op(s->cc_op); gen_jmp_im(cur_eip); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); - gen_helper_load_seg(tcg_const_i32(seg_reg), cpu_tmp2_i32); + gen_helper_load_seg(cpu_env, tcg_const_i32(seg_reg), cpu_tmp2_i32); /* abort translation because the addseg value may change or because ss32 may change. For R_SS, translation must always stop as a special handling must be done to disable hardware @@ -2680,7 +2680,7 @@ static void gen_enter(DisasContext *s, int esp_addend, int level) gen_op_st_T0_A0(ot + s->mem_index); if (level) { /* XXX: must save state */ - gen_helper_enter64_level(tcg_const_i32(level), + gen_helper_enter64_level(cpu_env, tcg_const_i32(level), tcg_const_i32((ot == OT_QUAD)), cpu_T[1]); } @@ -2705,7 +2705,7 @@ static void gen_enter(DisasContext *s, int esp_addend, int level) gen_op_st_T0_A0(ot + s->mem_index); if (level) { /* XXX: must save state */ - gen_helper_enter_level(tcg_const_i32(level), + gen_helper_enter_level(cpu_env, tcg_const_i32(level), tcg_const_i32(s->dflag), cpu_T[1]); } @@ -4759,13 +4759,13 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_op_set_cc_op(s->cc_op); gen_jmp_im(pc_start - s->cs_base); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); - gen_helper_lcall_protected(cpu_tmp2_i32, cpu_T[1], - tcg_const_i32(dflag), + gen_helper_lcall_protected(cpu_env, cpu_tmp2_i32, cpu_T[1], + tcg_const_i32(dflag), tcg_const_i32(s->pc - pc_start)); } else { tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); - gen_helper_lcall_real(cpu_tmp2_i32, cpu_T[1], - tcg_const_i32(dflag), + gen_helper_lcall_real(cpu_env, cpu_tmp2_i32, cpu_T[1], + tcg_const_i32(dflag), tcg_const_i32(s->pc - s->cs_base)); } gen_eob(s); @@ -4786,7 +4786,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_op_set_cc_op(s->cc_op); gen_jmp_im(pc_start - s->cs_base); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); - gen_helper_ljmp_protected(cpu_tmp2_i32, cpu_T[1], + gen_helper_ljmp_protected(cpu_env, cpu_tmp2_i32, cpu_T[1], tcg_const_i32(s->pc - pc_start)); } else { gen_op_movl_seg_T0_vm(R_CS); @@ -6320,7 +6320,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) if (s->cc_op != CC_OP_DYNAMIC) gen_op_set_cc_op(s->cc_op); gen_jmp_im(pc_start - s->cs_base); - gen_helper_lret_protected(tcg_const_i32(s->dflag), + gen_helper_lret_protected(cpu_env, tcg_const_i32(s->dflag), tcg_const_i32(val)); } else { gen_stack_A0(s); @@ -6347,20 +6347,20 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_svm_check_intercept(s, pc_start, SVM_EXIT_IRET); if (!s->pe) { /* real mode */ - gen_helper_iret_real(tcg_const_i32(s->dflag)); + gen_helper_iret_real(cpu_env, tcg_const_i32(s->dflag)); s->cc_op = CC_OP_EFLAGS; } else if (s->vm86) { if (s->iopl != 3) { gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); } else { - gen_helper_iret_real(tcg_const_i32(s->dflag)); + gen_helper_iret_real(cpu_env, tcg_const_i32(s->dflag)); s->cc_op = CC_OP_EFLAGS; } } else { if (s->cc_op != CC_OP_DYNAMIC) gen_op_set_cc_op(s->cc_op); gen_jmp_im(pc_start - s->cs_base); - gen_helper_iret_protected(tcg_const_i32(s->dflag), + gen_helper_iret_protected(cpu_env, tcg_const_i32(s->dflag), tcg_const_i32(s->pc - s->cs_base)); s->cc_op = CC_OP_EFLAGS; } @@ -7028,7 +7028,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) } else { gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); - gen_helper_sysenter(); + gen_helper_sysenter(cpu_env); gen_eob(s); } break; @@ -7041,7 +7041,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) } else { gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); - gen_helper_sysexit(tcg_const_i32(dflag)); + gen_helper_sysexit(cpu_env, tcg_const_i32(dflag)); gen_eob(s); } break; @@ -7050,7 +7050,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) /* XXX: is it usable in real mode ? */ gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); - gen_helper_syscall(tcg_const_i32(s->pc - pc_start)); + gen_helper_syscall(cpu_env, tcg_const_i32(s->pc - pc_start)); gen_eob(s); break; case 0x107: /* sysret */ @@ -7059,7 +7059,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) } else { gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); - gen_helper_sysret(tcg_const_i32(s->dflag)); + gen_helper_sysret(cpu_env, tcg_const_i32(s->dflag)); /* condition codes are modified only in long mode */ if (s->lma) s->cc_op = CC_OP_EFLAGS; @@ -7109,7 +7109,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0); gen_jmp_im(pc_start - s->cs_base); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); - gen_helper_lldt(cpu_tmp2_i32); + gen_helper_lldt(cpu_env, cpu_tmp2_i32); } break; case 1: /* str */ @@ -7132,7 +7132,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0); gen_jmp_im(pc_start - s->cs_base); tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]); - gen_helper_ltr(cpu_tmp2_i32); + gen_helper_ltr(cpu_env, cpu_tmp2_i32); } break; case 4: /* verr */ @@ -7142,10 +7142,11 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) gen_ldst_modrm(s, modrm, OT_WORD, OR_TMP0, 0); if (s->cc_op != CC_OP_DYNAMIC) gen_op_set_cc_op(s->cc_op); - if (op == 4) - gen_helper_verr(cpu_T[0]); - else - gen_helper_verw(cpu_T[0]); + if (op == 4) { + gen_helper_verr(cpu_env, cpu_T[0]); + } else { + gen_helper_verw(cpu_env, cpu_T[0]); + } s->cc_op = CC_OP_EFLAGS; break; default: @@ -7506,10 +7507,11 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) t0 = tcg_temp_local_new(); if (s->cc_op != CC_OP_DYNAMIC) gen_op_set_cc_op(s->cc_op); - if (b == 0x102) - gen_helper_lar(t0, cpu_T[0]); - else - gen_helper_lsl(t0, cpu_T[0]); + if (b == 0x102) { + gen_helper_lar(t0, cpu_env, cpu_T[0]); + } else { + gen_helper_lsl(t0, cpu_env, cpu_T[0]); + } tcg_gen_andi_tl(cpu_tmp0, cpu_cc_src, CC_Z); label1 = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_tmp0, 0, label1); -- 2.7.4