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runtime-rs: add representation of '-device intel-iommu' to qemu-rs

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Following the golang shim example, the values are hardcoded.

Signed-off-by: Pavel Mores <pmores@redhat.com>
This commit is contained in:
Pavel Mores 2024-04-19 15:38:57 +02:00
parent 702bf0d35e
commit 0859f47a17
1 changed files with 30 additions and 0 deletions
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30
src/runtime-rs/crates/hypervisor/src/qemu/cmdline_generator.rs
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@ -1118,6 +1118,36 @@ impl ToQemuParams for Rtc {
}
}
#[derive(Debug)]
struct DeviceIntelIommu {
intremap: bool,
device_iotlb: bool,
caching_mode: bool,
}
impl DeviceIntelIommu {
fn new() -> DeviceIntelIommu {
DeviceIntelIommu {
intremap: true,
device_iotlb: true,
caching_mode: true,
}
}
}
#[async_trait]
impl ToQemuParams for DeviceIntelIommu {
async fn qemu_params(&self) -> Result<Vec<String>> {
let mut params = Vec::new();
params.push("intel-iommu".to_owned());
let to_onoff = |b| if b { "on" } else { "off" };
params.push(format!("intremap={}", to_onoff(self.intremap)));
params.push(format!("device-iotlb={}", to_onoff(self.device_iotlb)));
params.push(format!("caching-mode={}", to_onoff(self.caching_mode)));
Ok(vec!["-device".to_owned(), params.join(",")])
}
}
fn is_running_in_vm() -> Result<bool> {
let res = read_to_string("/proc/cpuinfo")?
.lines()