Revision 983fe826 hw/armv7m.c
| b/hw/armv7m.c | ||
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} |
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/* Board init. */ |
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static void armv7m_reset(void *opaque) |
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{
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cpu_reset((CPUState *)opaque); |
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} |
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/* Init CPU and memory for a v7-M based board. |
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flash_size and sram_size are in kb. |
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Returns the NVIC array. */ |
| ... | ... | |
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/* FIXME: make this local state. */ |
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static qemu_irq pic[64]; |
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qemu_irq *cpu_pic; |
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uint32_t pc; |
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int image_size; |
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uint64_t entry; |
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uint64_t lowaddr; |
| ... | ... | |
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armv7m_bitband_init(); |
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nvic = qdev_create(NULL, "armv7m_nvic"); |
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env->v7m.nvic = nvic;
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env->nvic = nvic; |
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qdev_init_nofail(nvic); |
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cpu_pic = arm_pic_init_cpu(env); |
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sysbus_connect_irq(sysbus_from_qdev(nvic), 0, cpu_pic[ARM_PIC_CPU_IRQ]); |
| ... | ... | |
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exit(1); |
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} |
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/* If the image was loaded at address zero then assume it is a |
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regular ROM image and perform the normal CPU reset sequence. |
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Otherwise jump directly to the entry point. */ |
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if (lowaddr == 0) {
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env->regs[13] = ldl_phys(0); |
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pc = ldl_phys(4); |
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} else {
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pc = entry; |
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} |
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env->thumb = pc & 1; |
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env->regs[15] = pc & ~1; |
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/* Hack to map an additional page of ram at the top of the address |
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space. This stops qemu complaining about executing code outside RAM |
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when returning from an exception. */ |
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cpu_register_physical_memory(0xfffff000, 0x1000, |
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qemu_ram_alloc(0x1000) | IO_MEM_RAM); |
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qemu_register_reset(armv7m_reset, env); |
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return pic; |
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} |
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