arm64: enable virtio-net and add network scripts #40
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visitorckw
suggested changes
Jul 1, 2025
Enable POSIX timers to support ping’s POSIX timer syscalls: - CONFIG_POSIX_TIMERS=y in configs/linux-arm64.config Enable network stack and virtio-net in kernel config: - CONFIG_NET, CONFIG_INET, CONFIG_IP_MULTICAST, CONFIG_IP_PNP - CONFIG_IP_PNP_DHCP, CONFIG_NETDEVICES, CONFIG_VIRTIO - CONFIG_VIRTIO_NET, CONFIG_VIRTIO_RING, CONFIG_UNIX - CONFIG_UNIX_SCM, CONFIG_AF_UNIX_OOB Add virtio_net_dev to FDT generation: - src/arch/arm64/vm.c: include virtio_net_dev in interrupt-map Define VIRTIO_NET_IRQ=2 (SPI 34) in src/arch/arm64/desc.h Add scripts for host and guest network setup: - scripts/set-host-bridge.sh to configure TAP bridge and default route - scripts/set-guest-route.sh to configure guest static IP and route Update README.md with new scripts and build instructions These changes have been validated on a Raspberry Pi 5 Model B (Revision 1.0) running Ubuntu 25.10 with Linux kernel version 6.14.0.
The previous URL of The Linux/x86 Boot Protocol returned a 404 error due to an incorrect origin. Updated the link to point to the correct resource. References: - The Linux/x86 Boot Protocol: https://www.kernel.org/doc/html/latest/arch/x86/boot.html
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Many thanks to @visitorckw. I rebased the branch, interchanged patches 2 and 3, flagged patch 2 for squashing, and force-pushed the result. Please examine the changes at your convenience. |
jserv
reviewed
Jul 4, 2025
| @@ -42,8 +44,63 @@ containing concatenated `bootsect.o + setup.o + misc.o + piggy.o`. `initrd` is t | |||
| initial RAM disk image, which is an optional argument. | |||
| `disk-image` is the path to disk image which can be mounted as a block device via virtio. For the reference Linux guest, ext4 filesystem is used for disk image. | |||
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| ### Stop Emulator | |||
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It is meant to "stop" the emulation. Instead, the operation is dedicated to "exit" from the execution loop.
jserv
reviewed
Jul 4, 2025
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| CONFIG_UNIX=y | ||
| CONFIG_UNIX_SCM=y | ||
| CONFIG_AF_UNIX_OOB=y |
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Enable POSIX timers to support ping’s POSIX timer syscalls:
Enable network stack and virtio-net in kernel config:
Add virtio_net_dev to FDT generation:
Define VIRTIO_NET_IRQ=2 (SPI 34) in src/arch/arm64/desc.h
Add scripts for host and guest network setup:
Update README.md with new scripts and build instructions
These changes have been validated on a Raspberry Pi 5 Model B
(Revision 1.0) running Ubuntu 25.10 with Linux kernel version 6.14.0.