firecracker

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refactor cgroup to allow multiple properties per controller

1

The previous Cgroup implementation used a separate object per every cgroup property. This lead to additional calls to create_dir_all and writes to cgroup.procs, especially in cgroupsv2 where there is only...

mancio-aws

Support reset for `net` device

11

## Changes This PR implements support for resetting the `net` device. Resolves #3074. ## Reason The VirtIO spec says in [section 3.1.1](https://docs.oasis-open.org/virtio/virtio/v1.1/cs01/virtio-v1.1-cs01.html#x1-930001): > The driver MUST follow this sequence to...

acj

chore(docs): deprecate --start-time-cpu-us parameter

1

## Changes Deprecate the `--start-time-cpu-us` parameter. ## Reason It is always 0 so it does not provide any useful information. ## License Acceptance By submitting this pull request, I confirm...

pb8o

[vmm] refactor vmm builder code to separate the architecture dependent code in their own modules

1

### Description The `vmm` crate hosts most of the modules that implement the Firecracker functionality. Moreover, at its "top-level", mainly `lib.rs` and `builder.rs` includes the logic for creating the `Vmm`...

wearyzen

`deflate_on_oom` doesn't seem to work as expected/documented

5

After reading the [Ballooning](https://github.com/firecracker-microvm/firecracker/blob/main/docs/ballooning.md) documentation my understanding of the `deflate_on_oom` is that if the parameter is set to `true` the ballooning device will be deflated automatically if a process in...

simonis

[Bug] Processes get stuck after resuming VM from snapshot

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# Describe the bug After resuming a VM from snapshot, processes occasionally get stuck. A minimal example is an `init` binary that just runs `while (true) { sleep 100ms ;...

bduffany

## Changes * Added the `get_dirty_bitmap` on the full snapshot path ## Reason * The full snapshot path doesn’t call `Vmm:get_dirty_bitmap` thus doesn’t call `KVM_GET_DIRTY_LOG` which doesn’t reset dirty pages....

RomanKovtyukh

skipped unnecessary kvm_immediate_exits

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Skipped context switches in the presence of run_emulation and VcpuEvent::Resume if kvm_immediate_exit is set ## Changes - Forced kvm_immediate_exit to 0 in the presence of VcpuEvent::Resume, we are resuming the...

MatiasT

fix: keep dirty memory bitmaps until snapshot is made

1

## Changes * Merge KVM bitmap of dirty pages into Firecracker internal one before going through dirty all pages and making a diff snapshot. * Erase Firecracker bitmap only after...

RomanKovtyukh

Change iovec len from usize to u32

2

## Changes Changing the type of `iovec len` from `usize` to `u32` Resolves #4548 ## Reason This is to better reflect the buffer size and prevent buffer overflows. ... ##...

MarcoROG