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vmm, devices: Remove hardcoded IRQ number for GED device

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Remove the previously hardcoded IRQ number used for the GED device.
Instead allocate the IRQ using the allocator and use that value in the
definition in the ACPI device.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2019-12-09 15:07:31 +00:00
parent ce1bd9c7ff
commit ba59c62044
2 changed files with 25 additions and 9 deletions
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8
devices/src/acpi.rs
View File

@ -57,13 +57,15 @@ impl BusDevice for AcpiShutdownDevice {
pub struct AcpiGEDDevice {
interrupt: Box<dyn Interrupt>,
notification_type: HotPlugNotificationType,
ged_irq: u32,
}
impl AcpiGEDDevice {
pub fn new(interrupt: Box<dyn Interrupt>) -> AcpiGEDDevice {
pub fn new(interrupt: Box<dyn Interrupt>, ged_irq: u32) -> AcpiGEDDevice {
AcpiGEDDevice {
interrupt,
notification_type: HotPlugNotificationType::NoDevicesChanged,
ged_irq,
}
}
@ -74,6 +76,10 @@ impl AcpiGEDDevice {
self.notification_type = notification_type;
self.interrupt.deliver()
}
pub fn irq(&self) -> u32 {
self.ged_irq
}
}
// I/O port reports what type of notification was made

26
vmm/src/device_manager.rs
View File

@ -681,13 +681,16 @@ impl DeviceManager {
.insert(acpi_device.clone(), 0x3c0, 0x4)
.map_err(DeviceManagerError::BusError)?;
// We need to hardcode this as the ACPI tables need to specify a particular IRQ and it's not possible
// to ask the allocator for a specific one.
let ged_irq = 5;
let ged_irq = address_manager
.allocator
.lock()
.unwrap()
.allocate_irq()
.unwrap();
let interrupt: Box<dyn devices::Interrupt> =
Box::new(UserIoapicIrq::new(ioapic.clone(), ged_irq));
Box::new(UserIoapicIrq::new(ioapic.clone(), ged_irq as usize));
let ged_device = Arc::new(Mutex::new(devices::AcpiGEDDevice::new(interrupt)));
let ged_device = Arc::new(Mutex::new(devices::AcpiGEDDevice::new(interrupt, ged_irq)));
address_manager
.allocator
@ -1555,7 +1558,7 @@ impl Drop for DeviceManager {
}
#[cfg(feature = "acpi")]
fn create_ged_device() -> Vec<u8> {
fn create_ged_device(ged_irq: u32) -> Vec<u8> {
aml::Device::new(
"_SB_.GED_".into(),
vec![
@ -1564,7 +1567,7 @@ fn create_ged_device() -> Vec<u8> {
&aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![&aml::Interrupt::new(
true, true, false, false, 5,
true, true, false, false, ged_irq,
)]),
),
&aml::OpRegion::new("GDST".into(), aml::OpRegionSpace::SystemIO, 0xb000, 0x1),
@ -1663,7 +1666,14 @@ impl Aml for DeviceManager {
let s5_sleep_data =
aml::Name::new("_S5_".into(), &aml::Package::new(vec![&5u8])).to_aml_bytes();
let ged_data = create_ged_device();
let ged_data = create_ged_device(
self.ged_notification_device
.as_ref()
.unwrap()
.lock()
.unwrap()
.irq(),
);
bytes.extend_from_slice(pci_dsdt_data.as_slice());
bytes.extend_from_slice(mbrd_dsdt_data.as_slice());