Hi, all! We removed our RTEMS-virtio driver's dependencies on architecture. We used built-in function of gcc, __sync_synchronize(). This function generates proper memory barrier for target architecture on compile time. In addition, we replaced pcib_conf_read/write functions to pci_read/write_config functions. We added several lines of codes for exception handling suggested by Pavel Pisa. Thank you, Pavel Pisa. As we removed dependencies on CPU architectures, we moved the virtio source directory located at c/src/lib/libbsp/i386/pc386/ to c/src/lib/libbsp/shared. We plan to enhance the virtio driver for RTEMS, and we have several additional patches for it. To easily manage this project from our side, we created Github repository. You can see the latest version of our virtio driver in our Github: https://github.com/sslab-konkuk/RTEMS-virtio
Recently, we succeeded to test the virtio with Motorola_powerpc BSP. For this, we made additional modifications. Motorola_powerpc BSP doesn't support functions such as rtems_insterrupt_handler_install, so we used functions such as BSP_install_rtems_irq_handler instead of those. Moreover, in order to make our virtio work on PowerPC, we added initialization codes to virtio_pci.c because qemu_fakerom, which is the PowerPC bios of Motorola_powerpc BSP, doesn't initialize the virtio back-end driver. But some runtime error is occurred on RTEMS master branch, so we will submit about it again soon. Best regards, Jin-Hyun. _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
