Refer to the vmm-reference project to implement Miniball, and use dragonball-sandbox creats to implement CPU virtualization.

Add description document for CPU virtualization part. Modify the description of CPU virtualization in MiniBall's README.md.

Fixes: https://github.com/openanolis/dragonball-sandbox/issues/181

ASOC: https://github.com/openanolis/dragonball-sandbox/issues/155

Signed-off-by: yaoyinnan [email protected]

The rust-vmm community uses the Comparison requirements form for specific dependencies. The advantage of this is that when a new version of the crate is released, there is no need to update the version for each dependent crate. But, if the new version of the crate is API incompatible. All libs that depend on it must either be modified accordingly, or the version number must be locked. This is exactly what we do in kata currently. So in the next step we need to modify all the dependent libraries.

Making this work requires the following changes.

• [x] upgrade vm-memory to 0.8.0 for https://github.com/cloud-hypervisor/fuse-backend-rs
• [x] upgrade vm-memory to 0.8.0 for https://github.com/dragonflyoss/image-service
• [x] Use QueueStateSync in virtio-queue instead of QueueState for dbs-virtio-devices. And upgrade virtio-queue to 0.3.0.
• [x] upgrade vm-memory to 0.8.0 for all crates.

This modification mainly involves two aspects:

1. Expose the fdt address for building vcpu.
2. Add rtc clock to provide clock information for guest kernel.

This commit has serveral changes:

1. add get_kernel_start() to get the start place of the kernel
2. add add_e820_entry() to add e820 region to the e820 map
3. add several boot related consts

Besides, in order to pass dbs-utils CI, we change the thread sleep time in rate-limiter UT.

Signed-off-by: Chao Wu [email protected]

This patch introduces traits and structs to manage interrupt sources for devices, including the abstraction of interrupt manager and its implementation based on kvm framework.

Signed-off-by: Alibaba Dragonball Team Signed-off-by: Zizheng Bian [email protected]

commit 0ed2d60acd04ffd571a46b35e18162925d1af55d (HEAD -> jason/better-crate-version, origin/jason/better-crate-version) Author: Zizheng Bian [email protected] Date: Fri Feb 18 19:24:52 2022 +0800

refactor: reorganize the order of `use` declarations

uniform the order of `use` declarations by the order of std, other crates, and
current crate.

Signed-off-by: Zizheng Bian <[email protected]>

commit 399e133b4f95333bc52942d7fd0a057d88d2d8c0 Author: Zizheng Bian [email protected] Date: Fri Feb 18 19:15:48 2022 +0800

refactor: uniform the form of dependent versions in Cargo.toml

Use semver without any operator instead of other forms of dependents' version.

Note: semver without any operator is equivalent to the caret form.

Signed-off-by: Zizheng Bian <[email protected]>

Refer to the vmm-reference project to implement Miniball, and use dragonball-sandbox creats to implement Device virtualization.

Fixes: https://github.com/openanolis/dragonball-sandbox/issues/183

Signed-off-by: yaoyinnan [email protected]

Refer to the vmm-reference project to implement Miniball, and use dragonball-sandbox creats to implement Memory virtualization.

Fixes: https://github.com/openanolis/dragonball-sandbox/issues/182

Signed-off-by: yaoyinnan [email protected]

Previous constraint implemented &mut self -> &mut self for changing max, min, etc.

But this cause problem for code like

let constraint = Constraint::new(...).max(...).min(...);

This code creates a Constraint and return the mut reference to it, but there will be no one take the ownership of that Constraint so it'll be dropped and cannot be used later. Since temporary value is freed at the end of this statement, it is not a ideal case for us.

Signed-off-by: Chao Wu [email protected]

introduce x86_64 regs to help set regs, sregs and fpu. This is the first patch of the x86_64 regs, We'll introduce more regs related functions and unit tests in the coming patches.

Signed-off-by: Chao Wu [email protected]

Add description document for CPU virtualization part. Modify the description of CPU virtualization in MiniBall's README.md.

Fixes: https://github.com/openanolis/dragonball-sandbox/issues/187

Signed-off-by: yaoyinnan [email protected]

Since the vm-memory conflict brought by virtio-queue 0.4.0, we need to upgrade virtio-queue to the newest version. Meanwhile, virtio-queue change a lot of APIs from 0.4.0 to 0.5.0, so this PR mainly for fixing all the API changes.

Signed-off-by: Chao Wu [email protected]

In file crates/dbs-virtio-devices/src/fs, the coverage of the file reported by codecov is here https://app.codecov.io/gh/openanolis/dragonball-sandbox/blob/main/crates/dbs-virtio-devices/src/fs/device.rs. In line 314 (approximately), the fn manipulate_backend_fs() is marked with "test-resources" and commented "run via dbuvm docker image", is tested in line 1288 (approximately) fn test_manipulate_backend_fs() but reported not covered.

In file hybrid.rs, the following methods are not yet implemented in vm-memory/src/guest_memory.rs:

• 'file_offset()'
• 'as_slice()'
• 'as_mut_slice()'

which returns None regardless of conditions. UTs of these functions will be needed when they are implemented.

In file hybrid.rs, UT test_bitmap should have a self constructed bitmap to test the correctness of bitmap method. I tried construct one but failed by various reasons.