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vmm: acpi: Add a CTFY method to notify on all CPU objects

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This method calls Notify() on all the vCPU objects in the ACPI
namespace.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2019-11-27 17:26:33 +00:00
parent ae9359c859
commit b629727901
1 changed files with 24 additions and 2 deletions
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26
vmm/src/acpi.rs
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@ -162,7 +162,10 @@ impl aml::Aml for CPU {
}
}
struct CPUMethods;
struct CPUMethods {
max_vcpus: u8,
}
impl Aml for CPUMethods {
fn to_aml_bytes(&self) -> Vec<u8> {
let mut bytes = Vec::new();
@ -192,6 +195,25 @@ impl Aml for CPUMethods {
.to_aml_bytes(),
);
let mut paths = Vec::new();
for cpu_id in 0..self.max_vcpus {
paths.push(aml::Path::new(format!("C{:03}", cpu_id).as_str()))
}
let mut notify_methods = Vec::new();
for cpu_id in 0..self.max_vcpus {
notify_methods.push(aml::Notify::new(&paths[usize::from(cpu_id)], &aml::ONE));
}
let mut notify_methods_inner: Vec<&dyn Aml> = Vec::new();
for notify_method in notify_methods.iter() {
notify_methods_inner.push(notify_method);
}
bytes.extend_from_slice(
// Notify all vCPUs
&aml::Method::new("CTFY".into(), 0, true, notify_methods_inner).to_aml_bytes(),
);
bytes
}
}
@ -246,7 +268,7 @@ fn create_cpu_data(max_vcpus: u8) -> Vec<u8> {
let hid = aml::Name::new("_HID".into(), &"ACPI0010");
let uid = aml::Name::new("_CID".into(), &aml::EISAName::new("PNP0A05"));
// Bundle methods together under a common object
let methods = CPUMethods;
let methods = CPUMethods { max_vcpus };
let mut cpu_data_inner: Vec<&dyn aml::Aml> = vec![&hid, &uid, &methods];
let mut cpu_devices = Vec::new();