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vmm: acpi: Move DeviceManager ACPI device to an MMIO address

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Migrate the DeviceManager from a fixed I/O port address to an allocated
MMIO address.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-01-20 16:12:02 +00:00 committed by Sebastien Boeuf
parent 55a3a38e14
commit d578c408b7
1 changed files with 30 additions and 16 deletions
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46
vmm/src/device_manager.rs
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@ -379,6 +379,9 @@ pub type DeviceManagerResult<T> = result::Result<T, DeviceManagerError>;
type VirtioDeviceArc = Arc<Mutex<dyn virtio_devices::VirtioDevice>>;
#[cfg(feature = "acpi")]
const DEVICE_MANAGER_ACPI_SIZE: usize = 0x10;
pub fn get_win_size() -> (u16, u16) {
#[repr(C)]
#[derive(Default)]
@ -788,6 +791,9 @@ pub struct DeviceManager {
// Virtio Device activation EventFd to allow the VMM thread to trigger device
// activation and thus start the threads from the VMM thread
activate_evt: EventFd,
#[cfg(feature = "acpi")]
acpi_address: GuestAddress,
}
impl DeviceManager {
@ -825,6 +831,13 @@ impl DeviceManager {
vm,
));
#[cfg(feature = "acpi")]
let acpi_address = address_manager
.allocator
.lock()
.unwrap()
.allocate_mmio_addresses(None, DEVICE_MANAGER_ACPI_SIZE as u64, None)
.ok_or(DeviceManagerError::AllocateIOPort)?;
let device_manager = DeviceManager {
address_manager: Arc::clone(&address_manager),
console: Arc::new(Console::default()),
@ -860,25 +873,19 @@ impl DeviceManager {
activate_evt: activate_evt
.try_clone()
.map_err(DeviceManagerError::EventFd)?,
#[cfg(feature = "acpi")]
acpi_address,
};
#[cfg(feature = "acpi")]
address_manager
.allocator
.lock()
.unwrap()
.allocate_io_addresses(Some(GuestAddress(0xae00)), 0x10, None)
.ok_or(DeviceManagerError::AllocateIOPort)?;
let device_manager = Arc::new(Mutex::new(device_manager));
#[cfg(feature = "acpi")]
address_manager
.io_bus
.mmio_bus
.insert(
Arc::clone(&device_manager) as Arc<Mutex<dyn BusDevice>>,
0xae00,
0x10,
acpi_address.0,
DEVICE_MANAGER_ACPI_SIZE as u64,
)
.map_err(DeviceManagerError::BusError)?;
@ -3315,15 +3322,22 @@ impl Aml for DeviceManager {
&aml::Name::new("_STA".into(), &0x0bu8),
&aml::Name::new("_UID".into(), &"PCI Hotplug Controller"),
&aml::Mutex::new("BLCK".into(), 0),
// I/O port for PCI hotplug controller
&aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![&aml::IO::new(
0xae00, 0xae00, 0x01, 0x10,
&aml::ResourceTemplate::new(vec![&aml::AddressSpace::new_memory(
aml::AddressSpaceCachable::NotCacheable,
true,
self.acpi_address.0 as u64,
self.acpi_address.0 + DEVICE_MANAGER_ACPI_SIZE as u64 - 1,
)]),
),
// OpRegion and Fields map I/O port into individual field values
&aml::OpRegion::new("PCST".into(), aml::OpRegionSpace::SystemIO, 0xae00, 0x10),
// OpRegion and Fields map MMIO range into individual field values
&aml::OpRegion::new(
"PCST".into(),
aml::OpRegionSpace::SystemMemory,
self.acpi_address.0 as usize,
DEVICE_MANAGER_ACPI_SIZE,
),
&aml::Field::new(
"PCST".into(),
aml::FieldAccessType::DWord,