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vmm: hypervisor: simplify VM creation API

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For MSHV customers don't want to make everything
default during partition creation. For example
nested support, some synthetic features could be
controlled from CLI through platform argument.
Create_vm API getting messy after adding more flags.
This patch introduces common data struct to be passed
from vmm crate to hypervisor crate during partition creation.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
This commit is contained in:
Muminul Islam
2025-09-12 17:30:26 -07:00
committed by Bo Chen
parent f122398262
commit 1e8996f94f
8 changed files with 167 additions and 216 deletions
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22
hypervisor/src/hypervisor.rs
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@@ -13,7 +13,6 @@ use std::sync::Arc;
use thiserror::Error;
use crate::HypervisorType;
#[cfg(target_arch = "x86_64")]
use crate::arch::x86::CpuIdEntry;
#[cfg(target_arch = "x86_64")]
@@ -21,6 +20,7 @@ use crate::cpu::CpuVendor;
#[cfg(feature = "tdx")]
use crate::kvm::TdxCapabilities;
use crate::vm::Vm;
use crate::{HypervisorType, HypervisorVmConfig};
#[derive(Error, Debug)]
pub enum HypervisorError {
@@ -110,25 +110,7 @@ pub trait Hypervisor: Send + Sync {
/// Create a Vm using the underlying hypervisor
/// Return a hypervisor-agnostic Vm trait object
///
fn create_vm(&self) -> Result<Arc<dyn Vm>>;
///
/// Create a Vm of a specific type using the underlying hypervisor
/// Return a hypervisor-agnostic Vm trait object
///
fn create_vm_with_type(&self, _vm_type: u64) -> Result<Arc<dyn Vm>> {
unreachable!()
}
///
/// Create a Vm of a specific type using the underlying hypervisor, passing memory size
/// Return a hypervisor-agnostic Vm trait object
///
fn create_vm_with_type_and_memory(
&self,
_vm_type: u64,
#[cfg(feature = "sev_snp")] _mem_size: u64,
) -> Result<Arc<dyn Vm>> {
unreachable!()
}
fn create_vm(&self, config: HypervisorVmConfig) -> Result<Arc<dyn Vm>>;
#[cfg(target_arch = "x86_64")]
///
/// Get the supported CpuID