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vmm: Implement the power button method for AArch64

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This commit implements the power button method for AArch64 using
the PL061 GPIO controller.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
This commit is contained in:
Henry Wang 2021-03-07 21:39:11 +08:00 committed by Michael
parent c853ed3fdc
commit 2bb153de2b
3 changed files with 28 additions and 0 deletions
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2
devices/src/legacy/mod.rs
View File

@ -25,6 +25,8 @@ pub use self::fwdebug::FwDebugDevice;
pub use self::i8042::I8042Device;
pub use self::serial::Serial;
#[cfg(target_arch = "aarch64")]
pub use self::gpio_pl061::Error as GPIODeviceError;
#[cfg(target_arch = "aarch64")]
pub use self::gpio_pl061::GPIO;
#[cfg(target_arch = "aarch64")]

16
vmm/src/device_manager.rs
View File

@ -403,6 +403,10 @@ pub enum DeviceManagerError {
/// Failed to do power button notification
PowerButtonNotification(io::Error),
/// Failed to do AArch64 GPIO power button notification
#[cfg(target_arch = "aarch64")]
AArch64PowerButtonNotification(devices::legacy::GPIODeviceError),
/// Failed to set O_DIRECT flag to file descriptor
SetDirectIo,
@ -3521,6 +3525,7 @@ impl DeviceManager {
}
#[cfg(feature = "acpi")]
#[cfg(target_arch = "x86_64")]
pub fn notify_power_button(&self) -> DeviceManagerResult<()> {
self.ged_notification_device
.as_ref()
@ -3530,6 +3535,17 @@ impl DeviceManager {
.notify(AcpiNotificationFlags::POWER_BUTTON_CHANGED)
.map_err(DeviceManagerError::PowerButtonNotification)
}
#[cfg(target_arch = "aarch64")]
pub fn notify_power_button(&self) -> DeviceManagerResult<()> {
self.gpio_device
.as_ref()
.unwrap()
.lock()
.unwrap()
.trigger_key(3)
.map_err(DeviceManagerError::AArch64PowerButtonNotification)
}
}
#[cfg(feature = "acpi")]

10
vmm/src/vm.rs
View File

@ -2038,6 +2038,7 @@ impl Vm {
.map_err(Error::ActivateVirtioDevices)
}
#[cfg(target_arch = "x86_64")]
pub fn power_button(&self) -> Result<()> {
#[cfg(feature = "acpi")]
return self
@ -2049,6 +2050,15 @@ impl Vm {
#[cfg(not(feature = "acpi"))]
Err(Error::PowerButtonNotSupported)
}
#[cfg(target_arch = "aarch64")]
pub fn power_button(&self) -> Result<()> {
self.device_manager
.lock()
.unwrap()
.notify_power_button()
.map_err(Error::PowerButton)
}
}
impl Pausable for Vm {