add test using github.com/u-root/cpu{vm,client}#3452
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3452 +/- ##
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Coverage 59.35% 59.35%
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Files 637 637
Lines 54120 54120
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AjanZhong
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Sep 12, 2025
This is a simple test, which needs no shell, demonstrating how to use github.com/u-root/cpu vm and client packages. The vm package has four Linux kernel/initramfs pairs embedded in it, for amd64, arm, arm64, and riscv64; Plan 9 is planned. The test uses vm.Uroot to build a complete u-root image and merge it into the provided initramfs. The vm package will start the VM (see the test) with cpud running. The test then uses the client package to run commands in the guest, without needing a shell script. The cpu client returns 0 or non-zero status, for command success of failure. Note that, also, files can be read or written from outside the vm, with no special effort. This is shown in the first part of the tests, via dd. Signed-off-by: Ronald G Minnich <rminnich@gmail.com>
Seems this will not build right now for the released tinygo. Until your tinygo is at 1.24, do not try to build it. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
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This test kexecs the kernel, then connects to it again via cpu to verify the kexec succeeded. No shell needed in the guest, and the kernel/initramfs need not be copied in; they are accessed via 9p, as in cpu. Signed-off-by: Ronald G Minnich <rminnich@gmail.com>
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now includes a kexec test |
AjanZhong
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This is a simple test, which needs no shell,
demonstrating how to use github.com/u-root/cpu vm and client packages.
The vm package has four Linux kernel/initramfs pairs embedded in it, for amd64, arm, arm64, and riscv64; Plan 9 is planned.
The test uses vm.Uroot to build a complete u-root image and merge it into the provided initramfs.
The vm package will start the VM (see the test) with cpud running.
The test then uses the client package to run commands in the guest, without needing a shell script.
The cpu client returns 0 or non-zero status, for command success of failure.
Note that, also, files can be read or written from outside the vm, with no special effort. This is shown in the first part of the tests, via dd.