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vmm: cpu: Add concept of making CpuManager dynamic

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If the CpuManager is dynamic it devices CPUs can be
hotplugged/unplugged.

Since TDX does not support CPU hotplug this is currently the only
determinator as to whether the CpuManager is dynamic.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2022-03-17 12:33:04 +00:00
parent 9bfbc93044
commit e5cb13588b
1 changed files with 7 additions and 0 deletions
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7
vmm/src/cpu.rs
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@ -418,6 +418,7 @@ pub struct CpuManager {
#[cfg(feature = "acpi")] #[cfg(feature = "acpi")]
proximity_domain_per_cpu: BTreeMap<u8, u32>, proximity_domain_per_cpu: BTreeMap<u8, u32>,
affinity: BTreeMap<u8, Vec<u8>>, affinity: BTreeMap<u8, Vec<u8>>,
dynamic: bool,
} }
const CPU_ENABLE_FLAG: usize = 0; const CPU_ENABLE_FLAG: usize = 0;
@ -626,6 +627,11 @@ impl CpuManager {
BTreeMap::new() BTreeMap::new()
}; };
#[cfg(feature = "tdx")]
let dynamic = !tdx_enabled;
#[cfg(not(feature = "tdx"))]
let dynamic = true;
let cpu_manager = Arc::new(Mutex::new(CpuManager { let cpu_manager = Arc::new(Mutex::new(CpuManager {
config: config.clone(), config: config.clone(),
interrupt_controller: device_manager.interrupt_controller().clone(), interrupt_controller: device_manager.interrupt_controller().clone(),
@ -649,6 +655,7 @@ impl CpuManager {
#[cfg(feature = "acpi")] #[cfg(feature = "acpi")]
proximity_domain_per_cpu, proximity_domain_per_cpu,
affinity, affinity,
dynamic,
})); }));
#[cfg(feature = "acpi")] #[cfg(feature = "acpi")]