Hi Tuomas, On Fri, Sep 7, 2018 at 5:03 AM Tuomas Tynkkynen <tuomas.tynkky...@iki.fi> wrote: > > Hi Bin, > > On 09/04/2018 12:31 PM, Bin Meng wrote: > > Hi Lukas, > > > > On Tue, Sep 4, 2018 at 5:39 AM Auer, Lukas > > <lukas.a...@aisec.fraunhofer.de> wrote: > >> > >> On Thu, 2018-08-30 at 00:54 -0700, Bin Meng wrote: > >>> This adds QEMU RISC-V 'virt' board target support, with the hope of > >>> helping people easily test U-Boot on RISC-V. > >>> > >>> The QEMU virt machine models a generic RISC-V virtual machine with > >>> support for the VirtIO standard networking and block storage devices. > >>> It has CLINT, PLIC, 16550A UART devices in addition to VirtIO and > >>> it also uses device-tree to pass configuration information to guest > >>> software. It implements RISC-V privileged architecture spec v1.10. > >>> > >>> Both 32-bit and 64-bit builds are supported. Support is pretty much > >>> preliminary, only booting to U-Boot shell with the UART driver on > >>> a single core. Booting Linux is not supported yet. > >>> > >> > >> For your information and to avoid duplicate work, I am working on a > >> patch set that improves RISC-V support in u-boot. I am currently able > >> to boot Linux on a multi-core setup in QEMU, but they are not quite > >> ready to submit yet. > >> > > > > This is great! My next step is to work on virtio driver support in > > U-Boot as qemu-riscv virt machine has these devices but we don't have > > corresponding drivers in U-Boot. > At some point I was working on porting the virtio stack from Linux to > U-Boot and IIRC got virtio-blk and virtio-net working on ARM. But other > things consumed my time and I never quite finished that work. Let me > know if you want to take a look.
This is great. I just finished reading the virtio 1.0 spec and was about to start the work. My interest was to add virtio-blk and virtio-net driver to U-Boot too since they are most common devices (others are not used too much I believe). If you already have the drivers working, I can help to bring them upstream. Regards, Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
