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target/i386: add the tcg_enabled() in target/i386/ 

Add the tcg_enabled() where the x86 target needs to disable
TCG-specific code.

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Yang Zhong 2017-07-03 18:12:22 +08:00 committed by Paolo Bonzini
parent 6578eb25a0
commit 79c664f62d
4 changed files with 16 additions and 8 deletions
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4
target/i386/cpu.c
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@ -4040,8 +4040,10 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
cc->class_by_name = x86_cpu_class_by_name;
cc->parse_features = x86_cpu_parse_featurestr;
cc->has_work = x86_cpu_has_work;
#ifdef CONFIG_TCG
cc->do_interrupt = x86_cpu_do_interrupt;
cc->cpu_exec_interrupt = x86_cpu_exec_interrupt;
#endif
cc->dump_state = x86_cpu_dump_state;
cc->get_crash_info = x86_cpu_get_crash_info;
cc->set_pc = x86_cpu_set_pc;
@ -4070,7 +4072,7 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
cc->gdb_core_xml_file = "i386-32bit.xml";
cc->gdb_num_core_regs = 41;
#endif
#ifndef CONFIG_USER_ONLY
#if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY)
cc->debug_excp_handler = breakpoint_handler;
#endif
cc->cpu_exec_enter = x86_cpu_exec_enter;

8
target/i386/cpu.h
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@ -52,7 +52,9 @@
#include "exec/cpu-defs.h"
#ifdef CONFIG_TCG
#include "fpu/softfloat.h"
#endif
#define R_EAX 0
#define R_ECX 1
@ -1597,7 +1599,11 @@ uint32_t cpu_cc_compute_all(CPUX86State *env1, int op);
static inline uint32_t cpu_compute_eflags(CPUX86State *env)
{
return env->eflags | cpu_cc_compute_all(env, CC_OP) | (env->df & DF_MASK);
uint32_t eflags = env->eflags;
if (tcg_enabled()) {
eflags |= cpu_cc_compute_all(env, CC_OP) | (env->df & DF_MASK);
}
return eflags;
}
/* NOTE: the translator must set DisasContext.cc_op to CC_OP_EFLAGS

2
target/i386/helper.c
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@ -990,7 +990,7 @@ void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
env->tpr_access_type = access;
cpu_interrupt(cs, CPU_INTERRUPT_TPR);
} else {
} else if (tcg_enabled()) {
cpu_restore_state(cs, cs->mem_io_pc);
apic_handle_tpr_access_report(cpu->apic_state, env->eip, access);

10
target/i386/machine.c
View File

@ -281,16 +281,16 @@ static int cpu_post_load(void *opaque, int version_id)
env->fptags[i] = (env->fptag_vmstate >> i) & 1;
}
if (tcg_enabled()) {
target_ulong dr7;
update_fp_status(env);
update_mxcsr_status(env);
}
cpu_breakpoint_remove_all(cs, BP_CPU);
cpu_watchpoint_remove_all(cs, BP_CPU);
{
cpu_breakpoint_remove_all(cs, BP_CPU);
cpu_watchpoint_remove_all(cs, BP_CPU);
/* Indicate all breakpoints disabled, as they are, then
let the helper re-enable them. */
target_ulong dr7 = env->dr[7];
dr7 = env->dr[7];
env->dr[7] = dr7 & ~(DR7_GLOBAL_BP_MASK | DR7_LOCAL_BP_MASK);
cpu_x86_update_dr7(env, dr7);
}