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Dragonball: add cpu resize ability

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Add cpu resize ability upon upcall communication channel. Runtime could
use ResizeVcpu VmmAction and pass the desired vCPU number to the
Dragonball hypervisor.
Dragonball will trigger the device manager service in guest kernel's
upcall server to do cpu resize.

Fixes: #6008
Signed-off-by: Chao Wu <chaowu@linux.alibaba.com>
This commit is contained in:
Chao Wu
2023-01-09 17:03:07 +08:00
parent 2b34f0a54f
commit 57c5e5629b
7 changed files with 178 additions and 83 deletions
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2
src/runtime-rs/crates/hypervisor/src/dragonball/vmm_instance.rs
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@@ -314,7 +314,7 @@ impl VmmInstance {
return Ok(vmm_data);
}
Err(vmm_action_error) => {
if let VmmActionError::UpcallNotReady = vmm_action_error {
if let VmmActionError::UpcallServerNotReady = vmm_action_error {
std::thread::sleep(std::time::Duration::from_millis(10));
continue;
} else {