vmm: hypervisor: simplify VM creation API

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>

hypervisor/src/lib.rs

@@ -188,6 +188,16 @@ impl ClockData {
     }
 }
 
+#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]
+pub struct HypervisorVmConfig {
+    #[cfg(feature = "tdx")]
+    pub tdx_enabled: bool,
+    #[cfg(feature = "sev_snp")]
+    pub sev_snp_enabled: bool,
+    #[cfg(feature = "sev_snp")]
+    pub mem_size: u64,
+}
+
 #[derive(Copy, Clone)]
 pub enum IrqRoutingEntry {
     #[cfg(feature = "kvm")]