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devices: implement Aml trait for GED device

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Fixes: #657

Signed-off-by: Qiu Wenbo <qiuwenbo@phytium.com.cn>
This commit is contained in:
Qiu Wenbo
2020-02-25 15:20:59 +08:00
committed by Rob Bradford
parent b77fdeba2d
commit 9de3ace8c7
5 changed files with 62 additions and 52 deletions
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50
devices/src/acpi.rs
View File

@@ -3,6 +3,7 @@
// SPDX-License-Identifier: Apache-2.0
//
use acpi_tables::{aml, aml::Aml};
use std::sync::Arc;
use vm_device::interrupt::InterruptSourceGroup;
use vmm_sys_util::eventfd::EventFd;
@@ -94,3 +95,52 @@ impl BusDevice for AcpiGEDDevice {
fn write(&mut self, _base: u64, _offset: u64, _data: &[u8]) {}
}
#[cfg(feature = "acpi")]
impl Aml for AcpiGEDDevice {
fn to_aml_bytes(&self) -> Vec<u8> {
aml::Device::new(
"_SB_.GED_".into(),
vec![
&aml::Name::new("_HID".into(), &"ACPI0013"),
&aml::Name::new("_UID".into(), &aml::ZERO),
&aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![&aml::Interrupt::new(
true,
true,
false,
false,
self.ged_irq,
)]),
),
&aml::OpRegion::new("GDST".into(), aml::OpRegionSpace::SystemIO, 0xb000, 0x1),
&aml::Field::new(
"GDST".into(),
aml::FieldAccessType::Byte,
aml::FieldUpdateRule::WriteAsZeroes,
vec![aml::FieldEntry::Named(*b"GDAT", 8)],
),
&aml::Method::new(
"_EVT".into(),
1,
true,
vec![
&aml::Store::new(&aml::Local(0), &aml::Path::new("GDAT")),
&aml::And::new(&aml::Local(1), &aml::Local(0), &aml::ONE),
&aml::If::new(
&aml::Equal::new(&aml::Local(1), &aml::ONE),
vec![&aml::MethodCall::new("\\_SB_.CPUS.CSCN".into(), vec![])],
),
&aml::And::new(&aml::Local(1), &aml::Local(0), &2usize),
&aml::If::new(
&aml::Equal::new(&aml::Local(1), &2usize),
vec![&aml::MethodCall::new("\\_SB_.MHPC.MSCN".into(), vec![])],
),
],
),
],
)
.to_aml_bytes()
}
}

2
devices/src/lib.rs
View File

@@ -13,6 +13,8 @@ extern crate epoll;
extern crate libc;
#[macro_use]
extern crate log;
#[cfg(feature = "acpi")]
extern crate acpi_tables;
extern crate vm_device;
extern crate vm_memory;
extern crate vmm_sys_util;