haraldwolff/qemu-patch-raspberry4
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target-i386: set CC_OP to CC_OP_EFLAGS in cpu_load_eflags

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There is no reason to keep that out of the function.  The comment refers
to the disassembler's cc_op state rather than the CPUState field.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-05-14 16:47:48 +02:00
parent 7125c937c9
commit 28fb26f19f
4 changed files with 4 additions and 7 deletions
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5
target-i386/cpu.h
View file

@ -1232,11 +1232,14 @@ static inline uint32_t cpu_compute_eflags(CPUX86State *env)
return env->eflags | cpu_cc_compute_all(env, CC_OP) | (env->df & DF_MASK);
}
/* NOTE: CC_OP must be modified manually to CC_OP_EFLAGS */
/* NOTE: the translator must set DisasContext.cc_op to CC_OP_EFLAGS
* after generating a call to a helper that uses this.
*/
static inline void cpu_load_eflags(CPUX86State *env, int eflags,
int update_mask)
{
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
CC_OP = CC_OP_EFLAGS;
env->df = 1 - (2 * ((eflags >> 10) & 1));
env->eflags = (env->eflags & ~update_mask) |
(eflags & update_mask) | 0x2;

2
target-i386/seg_helper.c
View file

@ -1598,7 +1598,6 @@ void helper_ljmp_protected(CPUX86State *env, int new_cs, target_ulong new_eip,
}
next_eip = env->eip + next_eip_addend;
switch_tss(env, new_cs, e1, e2, SWITCH_TSS_JMP, next_eip);
CC_OP = CC_OP_EFLAGS;
break;
case 4: /* 286 call gate */
case 12: /* 386 call gate */
@ -1767,7 +1766,6 @@ void helper_lcall_protected(CPUX86State *env, int new_cs, target_ulong new_eip,
raise_exception_err(env, EXCP0D_GPF, new_cs & 0xfffc);
}
switch_tss(env, new_cs, e1, e2, SWITCH_TSS_CALL, next_eip);
CC_OP = CC_OP_EFLAGS;
return;
case 4: /* 286 call gate */
case 12: /* 386 call gate */

2
target-i386/smm_helper.c
View file

@ -168,7 +168,6 @@ void do_smm_enter(X86CPU *cpu)
CR0_PG_MASK));
cpu_x86_update_cr4(env, 0);
env->dr[7] = 0x00000400;
CC_OP = CC_OP_EFLAGS;
cpu_x86_load_seg_cache(env, R_CS, (env->smbase >> 4) & 0xffff, env->smbase,
0xffffffff,
@ -308,7 +307,6 @@ void helper_rsm(CPUX86State *env)
env->smbase = ldl_phys(cs->as, sm_state + 0x7ef8) & ~0x7fff;
}
#endif
CC_OP = CC_OP_EFLAGS;
env->hflags &= ~HF_SMM_MASK;
cpu_smm_update(env);

2
target-i386/svm_helper.c
View file

@ -260,7 +260,6 @@ void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend)
env->vm_vmcb + offsetof(struct vmcb,
save.rflags)),
~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
CC_OP = CC_OP_EFLAGS;
svm_load_seg_cache(env, env->vm_vmcb + offsetof(struct vmcb, save.es),
R_ES);
@ -702,7 +701,6 @@ void helper_vmexit(CPUX86State *env, uint32_t exit_code, uint64_t exit_info_1)
save.rflags)),
~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK |
VM_MASK));
CC_OP = CC_OP_EFLAGS;
svm_load_seg_cache(env, env->vm_hsave + offsetof(struct vmcb, save.es),
R_ES);