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vmm: Add stop_on_boot to Vm to stop VM on boot

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This commit adds `stop_on_boot` to `Vm` so that the VM stops before
starting on boot requested. This change is required to keep the target
VM stopped before a debugger attached as the user expected.

Signed-off-by: Akira Moroo <retrage01@gmail.com>
This commit is contained in:
Akira Moroo 2022-02-04 18:51:31 +09:00 committed by Rob Bradford
parent bae63a8b8c
commit 23bb629241
1 changed files with 16 additions and 6 deletions
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22
vmm/src/vm.rs
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@ -541,6 +541,7 @@ pub struct Vm {
exit_evt: EventFd,
#[cfg(all(feature = "kvm", target_arch = "x86_64"))]
hypervisor: Arc<dyn hypervisor::Hypervisor>,
stop_on_boot: bool,
}
impl Vm {
@ -574,6 +575,8 @@ impl Vm {
#[cfg(not(feature = "tdx"))]
let force_iommu = false;
let stop_on_boot = false;
let device_manager = DeviceManager::new(
vm.clone(),
config.clone(),
@ -670,6 +673,7 @@ impl Vm {
exit_evt,
#[cfg(all(feature = "kvm", target_arch = "x86_64"))]
hypervisor,
stop_on_boot,
})
}
@ -2009,7 +2013,11 @@ impl Vm {
return self.resume().map_err(Error::Resume);
}
let new_state = VmState::Running;
let new_state = if self.stop_on_boot {
VmState::BreakPoint
} else {
VmState::Running
};
current_state.valid_transition(new_state)?;
// Load kernel if configured
@ -2077,11 +2085,13 @@ impl Vm {
self.vm.tdx_finalize().map_err(Error::FinalizeTdx)?;
}
self.cpu_manager
.lock()
.unwrap()
.start_boot_vcpus()
.map_err(Error::CpuManager)?;
if new_state == VmState::Running {
self.cpu_manager
.lock()
.unwrap()
.start_boot_vcpus()
.map_err(Error::CpuManager)?;
}
self.setup_signal_handler()?;
self.setup_tty()?;