diff options
Diffstat (limited to 'target-mips/cpu.c')
| -rw-r--r-- | target-mips/cpu.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/target-mips/cpu.c b/target-mips/cpu.c index 9dd47e84f7..ae37ae26c0 100644 --- a/target-mips/cpu.c +++ b/target-mips/cpu.c @@ -45,6 +45,35 @@ static void mips_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) env->hflags |= tb->flags & MIPS_HFLAG_BMASK; } +static bool mips_cpu_has_work(CPUState *cs) +{ + MIPSCPU *cpu = MIPS_CPU(cs); + CPUMIPSState *env = &cpu->env; + bool has_work = false; + + /* It is implementation dependent if non-enabled interrupts + wake-up the CPU, however most of the implementations only + check for interrupts that can be taken. */ + if ((cs->interrupt_request & CPU_INTERRUPT_HARD) && + cpu_mips_hw_interrupts_pending(env)) { + has_work = true; + } + + /* MIPS-MT has the ability to halt the CPU. */ + if (env->CP0_Config3 & (1 << CP0C3_MT)) { + /* The QEMU model will issue an _WAKE request whenever the CPUs + should be woken up. */ + if (cs->interrupt_request & CPU_INTERRUPT_WAKE) { + has_work = true; + } + + if (!mips_vpe_active(env)) { + has_work = false; + } + } + return has_work; +} + /* CPUClass::reset() */ static void mips_cpu_reset(CPUState *s) { @@ -54,8 +83,8 @@ static void mips_cpu_reset(CPUState *s) mcc->parent_reset(s); - memset(env, 0, offsetof(CPUMIPSState, breakpoints)); - tlb_flush(env, 1); + memset(env, 0, offsetof(CPUMIPSState, mvp)); + tlb_flush(s, 1); cpu_state_reset(env); } @@ -97,13 +126,16 @@ static void mips_cpu_class_init(ObjectClass *c, void *data) mcc->parent_reset = cc->reset; cc->reset = mips_cpu_reset; + cc->has_work = mips_cpu_has_work; cc->do_interrupt = mips_cpu_do_interrupt; cc->dump_state = mips_cpu_dump_state; cc->set_pc = mips_cpu_set_pc; cc->synchronize_from_tb = mips_cpu_synchronize_from_tb; cc->gdb_read_register = mips_cpu_gdb_read_register; cc->gdb_write_register = mips_cpu_gdb_write_register; -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY + cc->handle_mmu_fault = mips_cpu_handle_mmu_fault; +#else cc->do_unassigned_access = mips_cpu_unassigned_access; cc->get_phys_page_debug = mips_cpu_get_phys_page_debug; #endif |