int fw_cfg_add_i32(fw_cfg_state_t*s, u16 key, u32 value)
{
u32 *copy;
copy = vmm_zalloc(sizeof(value));
*copy = vmm_cpu_to_le32(value);
return fw_cfg_add_bytes(s, key, copy, sizeof(value));
}
static int virtio_mmio_config_write(struct virtio_mmio_dev *m,
physical_addr_t offset,
void *src, u32 src_len)
{
int rc = VMM_OK;
u32 val = vmm_cpu_to_le32(*(u32 *)(src));
switch (offset) {
case VIRTIO_MMIO_HOST_FEATURES_SEL:
case VIRTIO_MMIO_GUEST_FEATURES_SEL:
case VIRTIO_MMIO_QUEUE_SEL:
case VIRTIO_MMIO_STATUS:
*(u32 *)(((void *)&m->config) + offset) = val;
break;
case VIRTIO_MMIO_GUEST_FEATURES:
if (m->config.guest_features_sel == 0) {
m->dev.emu->set_guest_features(&m->dev, val);
}
break;
case VIRTIO_MMIO_GUEST_PAGE_SIZE:
m->config.guest_page_size = val;
break;
case VIRTIO_MMIO_QUEUE_NUM:
m->config.queue_num = val;
m->dev.emu->set_size_vq(&m->dev,
m->config.queue_sel,
m->config.queue_num);
break;
case VIRTIO_MMIO_QUEUE_ALIGN:
m->config.queue_align = val;
break;
case VIRTIO_MMIO_QUEUE_PFN:
m->dev.emu->init_vq(&m->dev,
m->config.queue_sel,
m->config.guest_page_size,
m->config.queue_align,
val);
break;
case VIRTIO_MMIO_QUEUE_NOTIFY:
m->dev.emu->notify_vq(&m->dev, val);
break;
case VIRTIO_MMIO_INTERRUPT_ACK:
m->config.interrupt_state &= ~val;
vmm_devemu_emulate_irq(m->guest, m->irq, 0);
break;
default:
break;
};
return rc;
}
