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vmm: pass AccessPlatform implementation for SEV-SNP guest

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Passing AccessPlatform trait to virtio-device for requesting
restricting page access during IO for SEV-SNP guest.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
This commit is contained in:
Muminul Islam 2024-08-06 15:29:50 -07:00 committed by Liu Wei
parent 959ea7115f
commit 1e967697c2
1 changed files with 14 additions and 7 deletions
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21
vmm/src/device_manager.rs
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@ -3741,15 +3741,22 @@ impl DeviceManager {
// Create the AccessPlatform trait from the implementation IommuMapping.
// This will provide address translation for any virtio device sitting
// behind a vIOMMU.
let access_platform: Option<Arc<dyn AccessPlatform>> = if let Some(mapping) = iommu_mapping
{
Some(Arc::new(AccessPlatformMapping::new(
let mut access_platform: Option<Arc<dyn AccessPlatform>> = None;
if let Some(mapping) = iommu_mapping {
access_platform = Some(Arc::new(AccessPlatformMapping::new(
pci_device_bdf.into(),
mapping.clone(),
)))
} else {
None
};
)));
}
// If SEV-SNP is enabled create the AccessPlatform from SevSnpPageAccessProxy
#[cfg(feature = "sev_snp")]
if self.config.lock().unwrap().is_sev_snp_enabled() {
access_platform = Some(Arc::new(SevSnpPageAccessProxy::new(
self.address_manager.vm.clone(),
)));
}
let memory = self.memory_manager.lock().unwrap().guest_memory();