system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-11-05 20:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

target-i386: Use cpu_exec_interrupt qom hook

Browse source 
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-id: 1410626734-3804-23-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2014-09-13 09:45:33 -07:00 committed by Peter Maydell
parent 458dd76656
commit 42f53fea9f
4 changed files with 71 additions and 64 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

64
cpu-exec.c
View file

@ -426,70 +426,6 @@ int cpu_exec(CPUArchState *env)
if (interrupt_request & CPU_INTERRUPT_RESET) {
cpu_reset(cpu);
}
#endif
#if defined(TARGET_I386)
#if !defined(CONFIG_USER_ONLY)
if (interrupt_request & CPU_INTERRUPT_POLL) {
cpu->interrupt_request &= ~CPU_INTERRUPT_POLL;
apic_poll_irq(x86_cpu->apic_state);
}
#endif
if (interrupt_request & CPU_INTERRUPT_SIPI) {
do_cpu_sipi(x86_cpu);
} else if (env->hflags2 & HF2_GIF_MASK) {
if ((interrupt_request & CPU_INTERRUPT_SMI) &&
!(env->hflags & HF_SMM_MASK)) {
cpu_svm_check_intercept_param(env, SVM_EXIT_SMI,
0);
cpu->interrupt_request &= ~CPU_INTERRUPT_SMI;
do_smm_enter(x86_cpu);
next_tb = 0;
} else if ((interrupt_request & CPU_INTERRUPT_NMI) &&
!(env->hflags2 & HF2_NMI_MASK)) {
cpu->interrupt_request &= ~CPU_INTERRUPT_NMI;
env->hflags2 |= HF2_NMI_MASK;
do_interrupt_x86_hardirq(env, EXCP02_NMI, 1);
next_tb = 0;
} else if (interrupt_request & CPU_INTERRUPT_MCE) {
cpu->interrupt_request &= ~CPU_INTERRUPT_MCE;
do_interrupt_x86_hardirq(env, EXCP12_MCHK, 0);
next_tb = 0;
} else if ((interrupt_request & CPU_INTERRUPT_HARD) &&
(((env->hflags2 & HF2_VINTR_MASK) &&
(env->hflags2 & HF2_HIF_MASK)) ||
(!(env->hflags2 & HF2_VINTR_MASK) &&
(env->eflags & IF_MASK &&
!(env->hflags & HF_INHIBIT_IRQ_MASK))))) {
int intno;
cpu_svm_check_intercept_param(env, SVM_EXIT_INTR,
0);
cpu->interrupt_request &= ~(CPU_INTERRUPT_HARD |
CPU_INTERRUPT_VIRQ);
intno = cpu_get_pic_interrupt(env);
qemu_log_mask(CPU_LOG_TB_IN_ASM, "Servicing hardware INT=0x%02x\n", intno);
do_interrupt_x86_hardirq(env, intno, 1);
/* ensure that no TB jump will be modified as
the program flow was changed */
next_tb = 0;
#if !defined(CONFIG_USER_ONLY)
} else if ((interrupt_request & CPU_INTERRUPT_VIRQ) &&
(env->eflags & IF_MASK) &&
!(env->hflags & HF_INHIBIT_IRQ_MASK)) {
int intno;
/* FIXME: this should respect TPR */
cpu_svm_check_intercept_param(env, SVM_EXIT_VINTR,
0);
intno = ldl_phys(cpu->as,
env->vm_vmcb
+ offsetof(struct vmcb,
control.int_vector));
qemu_log_mask(CPU_LOG_TB_IN_ASM, "Servicing virtual hardware INT=0x%02x\n", intno);
do_interrupt_x86_hardirq(env, intno, 1);
cpu->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
next_tb = 0;
#endif
}
}
#endif
/* The target hook has 3 exit conditions:
False when the interrupt isn't processed,

1
target-i386/cpu-qom.h
View file

@ -130,6 +130,7 @@ extern struct VMStateDescription vmstate_x86_cpu;
* @cpu: vCPU the interrupt is to be handled by.
*/
void x86_cpu_do_interrupt(CPUState *cpu);
bool x86_cpu_exec_interrupt(CPUState *cpu, int int_req);
int x86_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
int cpuid, void *opaque);

1
target-i386/cpu.c
View file

@ -2920,6 +2920,7 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
cc->parse_features = x86_cpu_parse_featurestr;
cc->has_work = x86_cpu_has_work;
cc->do_interrupt = x86_cpu_do_interrupt;
cc->cpu_exec_interrupt = x86_cpu_exec_interrupt;
cc->dump_state = x86_cpu_dump_state;
cc->set_pc = x86_cpu_set_pc;
cc->synchronize_from_tb = x86_cpu_synchronize_from_tb;

69
target-i386/seg_helper.c
View file

@ -1279,6 +1279,75 @@ void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw)
do_interrupt_all(x86_env_get_cpu(env), intno, 0, 0, 0, is_hw);
}
bool x86_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
bool ret = false;
#if !defined(CONFIG_USER_ONLY)
if (interrupt_request & CPU_INTERRUPT_POLL) {
cs->interrupt_request &= ~CPU_INTERRUPT_POLL;
apic_poll_irq(cpu->apic_state);
}
#endif
if (interrupt_request & CPU_INTERRUPT_SIPI) {
do_cpu_sipi(cpu);
} else if (env->hflags2 & HF2_GIF_MASK) {
if ((interrupt_request & CPU_INTERRUPT_SMI) &&
!(env->hflags & HF_SMM_MASK)) {
cpu_svm_check_intercept_param(env, SVM_EXIT_SMI, 0);
cs->interrupt_request &= ~CPU_INTERRUPT_SMI;
do_smm_enter(cpu);
ret = true;
} else if ((interrupt_request & CPU_INTERRUPT_NMI) &&
!(env->hflags2 & HF2_NMI_MASK)) {
cs->interrupt_request &= ~CPU_INTERRUPT_NMI;
env->hflags2 |= HF2_NMI_MASK;
do_interrupt_x86_hardirq(env, EXCP02_NMI, 1);
ret = true;
} else if (interrupt_request & CPU_INTERRUPT_MCE) {
cs->interrupt_request &= ~CPU_INTERRUPT_MCE;
do_interrupt_x86_hardirq(env, EXCP12_MCHK, 0);
ret = true;
} else if ((interrupt_request & CPU_INTERRUPT_HARD) &&
(((env->hflags2 & HF2_VINTR_MASK) &&
(env->hflags2 & HF2_HIF_MASK)) ||
(!(env->hflags2 & HF2_VINTR_MASK) &&
(env->eflags & IF_MASK &&
!(env->hflags & HF_INHIBIT_IRQ_MASK))))) {
int intno;
cpu_svm_check_intercept_param(env, SVM_EXIT_INTR, 0);
cs->interrupt_request &= ~(CPU_INTERRUPT_HARD |
CPU_INTERRUPT_VIRQ);
intno = cpu_get_pic_interrupt(env);
qemu_log_mask(CPU_LOG_TB_IN_ASM,
"Servicing hardware INT=0x%02x\n", intno);
do_interrupt_x86_hardirq(env, intno, 1);
/* ensure that no TB jump will be modified as
the program flow was changed */
ret = true;
#if !defined(CONFIG_USER_ONLY)
} else if ((interrupt_request & CPU_INTERRUPT_VIRQ) &&
(env->eflags & IF_MASK) &&
!(env->hflags & HF_INHIBIT_IRQ_MASK)) {
int intno;
/* FIXME: this should respect TPR */
cpu_svm_check_intercept_param(env, SVM_EXIT_VINTR, 0);
intno = ldl_phys(cs->as, env->vm_vmcb
+ offsetof(struct vmcb, control.int_vector));
qemu_log_mask(CPU_LOG_TB_IN_ASM,
"Servicing virtual hardware INT=0x%02x\n", intno);
do_interrupt_x86_hardirq(env, intno, 1);
cs->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
ret = true;
#endif
}
}
return ret;
}
void helper_enter_level(CPUX86State *env, int level, int data32,
target_ulong t1)
{