Am Mon, 13 Dec 2021 01:31:01 -0800 (PST) schrieb Moustafa Nofal <[email protected]>:
> Hello Mr Henning > >If that PCI device is of type JAILHOUSE_SHMEM_PROTO_VETH > >and the cell has a driver ... you will see a new ethernet interface > >becoming available. > What do you mean by "and the cell has a driver" I ported jailhouse on > both 5.4 and 5.10 kernel using jailhouse patches. And added ivshmem > interface but it was not working. Cell has a driver means that you took one of the "jailhouse-enabling" branches from https://github.com/siemens/linux/ You did set CONFIG_IVSHMEM_NET for that kernel. You did configure your cells with the respective virtual PCI devices and memory regions. Best check out https://github.com/siemens/jailhouse-images to see how to plug things together. regards, Henning > Best regards, > Moustafa Noufale > On Monday, 29 March 2021 at 11:02:57 UTC+2 Henning Schild wrote: > > > Am Sun, 28 Mar 2021 22:16:14 +0800 (GMT+08:00) > > schrieb 曹宏鹏 <[email protected]>: > > > > > Dear sir: > > > > > > As we all know, the cell could communicate with root cell by > > > ivshmem in Jailhouse. And there is a virtual Network Interface > > > Card(NIC) on non-root cell. When I run Jailhouse on my raspberry > > > Pi 4 model b, I was successful to create a cell and assigned a > > > address to it. The root cell can communicate with non-root cell , > > > I know this is based on ivshmem. But I want to know > > > > > > 1. Whether the virtual NIC support other protocols. > > > > It is a virtual ethernet connection, on top you can use anything > > that can be done on top of "network". It is probably best to build > > whatever you need on top of Ethernet, maybe nfs, remote desktop ... > > but if you really need a custom protocol at the base you can write > > your own driver and choose another ".shmem_protocol" > > There is ivshmem-demo giving a simple raw usage example of > > JAILHOUSE_SHMEM_PROTO_UNDEFINED. > > > > > 2. What is difference between virtual NIC in non-root cell and > > > NIC in root cell. > > > > There is none. Once running under jailhouse a cell might see the PCI > > device for shared memory communication on the bus (depending on the > > cell config). If that PCI device is of type > > JAILHOUSE_SHMEM_PROTO_VETH and the cell has a driver ... you will > > see a new ethernet interface becoming available. > > > > > 3. Why the virtual NIC cannot ping baidu.com(in China ) or > > > google.com. > > > > You essentially have an isolated network between the two cells. To > > connect the inmate to the internet, the root cell will have to > > become a network router. So you would set up i.e. NAT to connect on > > layer3 > > > > The most simple solution could be to create a network bridge where > > you attach the real physical network interface and later the > > virtual one. (in the root cell) > > After doing that the non-root should be in the same Layer2 network > > and can use DHCP to get a network configuration that will allow > > internet access just like the root-cell has. > > > > All that is basic networking and has nothing to do with jailhouse. > > > > regards, > > Henning > > > > > If I get your help, I will appreciate ！ > > > > > > > > > Yours sincerely, > > > HOngpeng Cao. > > > > > > > > -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jailhouse-dev/20220105204517.06c9af0a%40md1za8fc.ad001.siemens.net.
