HLT, MWAIT and MONITOR insn fixes (initial patch by Alexander Graf)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4746 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
parent
17ca26e791
commit
94451178b6
@ -60,9 +60,9 @@ DEF_HELPER(void, helper_sysexit, (void))
|
|||||||
DEF_HELPER(void, helper_syscall, (int next_eip_addend))
|
DEF_HELPER(void, helper_syscall, (int next_eip_addend))
|
||||||
DEF_HELPER(void, helper_sysret, (int dflag))
|
DEF_HELPER(void, helper_sysret, (int dflag))
|
||||||
#endif
|
#endif
|
||||||
DEF_HELPER(void, helper_hlt, (void))
|
DEF_HELPER(void, helper_hlt, (int next_eip_addend))
|
||||||
DEF_HELPER(void, helper_monitor, (target_ulong ptr))
|
DEF_HELPER(void, helper_monitor, (target_ulong ptr))
|
||||||
DEF_HELPER(void, helper_mwait, (void))
|
DEF_HELPER(void, helper_mwait, (int next_eip_addend))
|
||||||
DEF_HELPER(void, helper_debug, (void))
|
DEF_HELPER(void, helper_debug, (void))
|
||||||
DEF_HELPER(void, helper_raise_interrupt, (int intno, int next_eip_addend))
|
DEF_HELPER(void, helper_raise_interrupt, (int intno, int next_eip_addend))
|
||||||
DEF_HELPER(void, helper_raise_exception, (int exception_index))
|
DEF_HELPER(void, helper_raise_exception, (int exception_index))
|
||||||
|
@ -4547,16 +4547,22 @@ void helper_idivq_EAX(target_ulong t0)
|
|||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
void helper_hlt(void)
|
static void do_hlt(void)
|
||||||
{
|
{
|
||||||
helper_svm_check_intercept_param(SVM_EXIT_HLT, 0);
|
|
||||||
|
|
||||||
env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
|
env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
|
||||||
env->halted = 1;
|
env->halted = 1;
|
||||||
env->exception_index = EXCP_HLT;
|
env->exception_index = EXCP_HLT;
|
||||||
cpu_loop_exit();
|
cpu_loop_exit();
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void helper_hlt(int next_eip_addend)
|
||||||
|
{
|
||||||
|
helper_svm_check_intercept_param(SVM_EXIT_HLT, 0);
|
||||||
|
EIP += next_eip_addend;
|
||||||
|
|
||||||
|
do_hlt();
|
||||||
|
}
|
||||||
|
|
||||||
void helper_monitor(target_ulong ptr)
|
void helper_monitor(target_ulong ptr)
|
||||||
{
|
{
|
||||||
if ((uint32_t)ECX != 0)
|
if ((uint32_t)ECX != 0)
|
||||||
@ -4565,17 +4571,19 @@ void helper_monitor(target_ulong ptr)
|
|||||||
helper_svm_check_intercept_param(SVM_EXIT_MONITOR, 0);
|
helper_svm_check_intercept_param(SVM_EXIT_MONITOR, 0);
|
||||||
}
|
}
|
||||||
|
|
||||||
void helper_mwait(void)
|
void helper_mwait(int next_eip_addend)
|
||||||
{
|
{
|
||||||
if ((uint32_t)ECX != 0)
|
if ((uint32_t)ECX != 0)
|
||||||
raise_exception(EXCP0D_GPF);
|
raise_exception(EXCP0D_GPF);
|
||||||
helper_svm_check_intercept_param(SVM_EXIT_MWAIT, 0);
|
helper_svm_check_intercept_param(SVM_EXIT_MWAIT, 0);
|
||||||
|
EIP += next_eip_addend;
|
||||||
|
|
||||||
/* XXX: not complete but not completely erroneous */
|
/* XXX: not complete but not completely erroneous */
|
||||||
if (env->cpu_index != 0 || env->next_cpu != NULL) {
|
if (env->cpu_index != 0 || env->next_cpu != NULL) {
|
||||||
/* more than one CPU: do not sleep because another CPU may
|
/* more than one CPU: do not sleep because another CPU may
|
||||||
wake this one */
|
wake this one */
|
||||||
} else {
|
} else {
|
||||||
helper_hlt();
|
do_hlt();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -6420,8 +6420,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
|
|||||||
} else {
|
} else {
|
||||||
if (s->cc_op != CC_OP_DYNAMIC)
|
if (s->cc_op != CC_OP_DYNAMIC)
|
||||||
gen_op_set_cc_op(s->cc_op);
|
gen_op_set_cc_op(s->cc_op);
|
||||||
gen_jmp_im(s->pc - s->cs_base);
|
gen_jmp_im(pc_start - s->cs_base);
|
||||||
tcg_gen_helper_0_0(helper_hlt);
|
tcg_gen_helper_0_1(helper_hlt, tcg_const_i32(s->pc - pc_start));
|
||||||
s->is_jmp = 3;
|
s->is_jmp = 3;
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -6519,6 +6519,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
|
|||||||
if (!(s->cpuid_ext_features & CPUID_EXT_MONITOR) ||
|
if (!(s->cpuid_ext_features & CPUID_EXT_MONITOR) ||
|
||||||
s->cpl != 0)
|
s->cpl != 0)
|
||||||
goto illegal_op;
|
goto illegal_op;
|
||||||
|
if (s->cc_op != CC_OP_DYNAMIC)
|
||||||
|
gen_op_set_cc_op(s->cc_op);
|
||||||
gen_jmp_im(pc_start - s->cs_base);
|
gen_jmp_im(pc_start - s->cs_base);
|
||||||
#ifdef TARGET_X86_64
|
#ifdef TARGET_X86_64
|
||||||
if (s->aflag == 2) {
|
if (s->aflag == 2) {
|
||||||
@ -6541,8 +6543,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
|
|||||||
gen_op_set_cc_op(s->cc_op);
|
gen_op_set_cc_op(s->cc_op);
|
||||||
s->cc_op = CC_OP_DYNAMIC;
|
s->cc_op = CC_OP_DYNAMIC;
|
||||||
}
|
}
|
||||||
gen_jmp_im(s->pc - s->cs_base);
|
gen_jmp_im(pc_start - s->cs_base);
|
||||||
tcg_gen_helper_0_0(helper_mwait);
|
tcg_gen_helper_0_1(helper_mwait, tcg_const_i32(s->pc - pc_start));
|
||||||
gen_eob(s);
|
gen_eob(s);
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
|
Loading…
Reference in New Issue
Block a user