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hypervisor: Do not register ioevent for SEV-SNP

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... enabled VMs. IOEvents are not supported in case of SEV-SNP VMs. All
the IO events are delievered via GHCB protocol.

Signed-off-by: Jinank Jain <jinankjain@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
This commit is contained in:
Jinank Jain 2024-02-05 15:44:23 +05:30 committed by Bo Chen
parent 3a683b54d5
commit d0be450b1b
1 changed files with 6 additions and 2 deletions
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8
hypervisor/src/mshv/mod.rs
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@ -251,7 +251,6 @@ impl hypervisor::Hypervisor for MshvHypervisor {
}
// Set additional partition property for SEV-SNP partition.
let mut _sev_snp_enabled = mshv_vm_type == VmType::Snp;
if mshv_vm_type == VmType::Snp {
let snp_policy = snp::get_default_snp_guest_policy();
let vmgexit_offloads = snp::get_default_vmgexit_offload_features();
@ -308,7 +307,7 @@ impl hypervisor::Hypervisor for MshvHypervisor {
msrs,
dirty_log_slots: Arc::new(RwLock::new(HashMap::new())),
#[cfg(feature = "sev_snp")]
sev_snp_enabled: _sev_snp_enabled,
sev_snp_enabled: mshv_vm_type == VmType::Snp,
}))
}
@ -1591,6 +1590,11 @@ impl vm::Vm for MshvVm {
addr: &IoEventAddress,
datamatch: Option<DataMatch>,
) -> vm::Result<()> {
#[cfg(feature = "sev_snp")]
if self.sev_snp_enabled {
return Ok(());
}
let addr = &mshv_ioctls::IoEventAddress::from(*addr);
debug!(
"register_ioevent fd {} addr {:x?} datamatch {:?}",