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Merged
aarkegz merged 4 commits into from
Jul 14, 2025
Merged

Virtual (GPPT) GICv3 creation #13

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f8c060f
update to newest `axvmconfig`, add vgicv3 creation code.
aarkegz Jul 12, 2025
3f31511
add logs
aarkegz Jul 12, 2025
46f87c9
fix code errors
aarkegz Jul 13, 2025
a590ad6
formatted
aarkegz Jul 14, 2025
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2 changes: 1 addition & 1 deletion Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -20,4 +20,4 @@ axdevice_base = { git = "https://github.com/arceos-hypervisor/axdevice_crates.gi
range-alloc = { git = "https://github.com/arceos-hypervisor/range-alloc.git" }

[target.'cfg(target_arch = "aarch64")'.dependencies]
arm_vgic = { git = "https://github.com/arceos-hypervisor/arm_vgic.git" }
arm_vgic = { git = "https://github.com/arceos-hypervisor/arm_vgic.git", features = ["vgicv3"] }
106 changes: 101 additions & 5 deletions src/device.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ use axdevice_base::{
};
use axerrno::{AxResult, ax_err};
use axvmconfig::EmulatedDeviceConfig;
use memory_addr::is_aligned_4k;
use memory_addr::{PhysAddr, is_aligned_4k};

use crate::AxVmDeviceConfig;

Expand All @@ -26,7 +26,7 @@ pub struct AxEmuDevices<R: DeviceAddrRange> {
emu_devices: Vec<Arc<dyn BaseDeviceOps<R>>>,
}

impl<R: DeviceAddrRange> AxEmuDevices<R> {
impl<R: DeviceAddrRange + 'static> AxEmuDevices<R> {
/// Creates a new [`AxEmuDevices`] instance.
pub fn new() -> Self {
Self {
Expand Down Expand Up @@ -126,8 +126,8 @@ impl AxVmDevices {
/// According the emu_configs to init every specific device
fn init(this: &mut Self, emu_configs: &Vec<EmulatedDeviceConfig>) {
for config in emu_configs {
match EmuDeviceType::from_usize(config.emu_type) {
EmuDeviceType::EmuDeviceTInterruptController => {
match config.emu_type {
EmuDeviceType::InterruptController => {
#[cfg(target_arch = "aarch64")]
{
this.add_mmio_dev(Arc::new(Vgic::new()));
Expand All @@ -140,7 +140,103 @@ impl AxVmDevices {
);
}
}
EmuDeviceType::EmuDeviceTIVCChannel => {
EmuDeviceType::GPPTRedistributor => {
#[cfg(target_arch = "aarch64")]
{
const GPPT_GICR_ARG_ERR_MSG: &'static str =
"expect 3 args for gppt redistributor (cpu_num, stride, pcpu_id)";

let cpu_num = config
.cfg_list
.get(0)
.copied()
.expect(GPPT_GICR_ARG_ERR_MSG);
let stride = config
.cfg_list
.get(1)
.copied()
.expect(GPPT_GICR_ARG_ERR_MSG);
let pcpu_id = config
.cfg_list
.get(2)
.copied()
.expect(GPPT_GICR_ARG_ERR_MSG);

for i in 0..cpu_num {
let addr = config.base_gpa + i * stride;
let size = config.length;
this.add_mmio_dev(Arc::new(arm_vgic::v3::vgicr::VGicR::new(
addr.into(),
Some(size),
pcpu_id + i,
)));

info!(
"GPPT Redistributor initialized for vCPU {} with base GPA {:#x} and length {:#x}",
i, addr, size
);
}
}
#[cfg(not(target_arch = "aarch64"))]
{
warn!(
"emu type: {} is not supported on this platform",
config.emu_type
);
}
}
EmuDeviceType::GPPTDistributor => {
#[cfg(target_arch = "aarch64")]
{
this.add_mmio_dev(Arc::new(arm_vgic::v3::vgicd::VGicD::new(
config.base_gpa.into(),
Some(config.length),
)));

info!(
"GPPT Distributor initialized with base GPA {:#x} and length {:#x}",
config.base_gpa, config.length
);
}
#[cfg(not(target_arch = "aarch64"))]
{
warn!(
"emu type: {} is not supported on this platform",
config.emu_type
);
}
}
EmuDeviceType::GPPTITS => {
#[cfg(target_arch = "aarch64")]
{
let host_gits_base = config
.cfg_list
.get(0)
.copied()
.map(PhysAddr::from_usize)
.expect("expect 1 arg for gppt its (host_gits_base)");

this.add_mmio_dev(Arc::new(arm_vgic::v3::gits::Gits::new(
config.base_gpa.into(),
Some(config.length),
host_gits_base,
false,
)));

info!(
"GPPT ITS initialized with base GPA {:#x} and length {:#x}, host GITS base {:#x}",
config.base_gpa, config.length, host_gits_base
);
}
#[cfg(not(target_arch = "aarch64"))]
{
warn!(
"emu type: {} is not supported on this platform",
config.emu_type
);
}
}
EmuDeviceType::IVCChannel => {
if this.ivc_channel.is_none() {
// Initialize the IVC channel range allocator
this.ivc_channel = Some(Mutex::new(RangeAllocator::new(Range {
Expand Down
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