hypervisor: Silence compiler warning for unused variables

There are a bunch of unused variables as of now on the MSHV side and
compiler warns about them. Thus, mark them as unused for the time being.

Signed-off-by: Jinank Jain <jinankjain@microsoft.com>

hypervisor/src/mshv/mod.rs

@@ -528,6 +528,7 @@ unsafe impl Send for Ghcb {}
 unsafe impl Sync for Ghcb {}
 
 /// Vcpu struct for Microsoft Hypervisor
+#[allow(dead_code)]
 pub struct MshvVcpu {
     fd: VcpuFd,
     vp_index: u8,
@@ -1283,7 +1284,7 @@ impl cpu::Vcpu for MshvVcpu {
     }
 
     #[cfg(target_arch = "aarch64")]
-    fn init_pmu(&self, irq: u32) -> cpu::Result<()> {
+    fn init_pmu(&self, _irq: u32) -> cpu::Result<()> {
         unimplemented!()
     }
 
@@ -1293,12 +1294,12 @@ impl cpu::Vcpu for MshvVcpu {
     }
 
     #[cfg(target_arch = "aarch64")]
-    fn setup_regs(&self, cpu_id: u8, boot_ip: u64, fdt_start: u64) -> cpu::Result<()> {
+    fn setup_regs(&self, _cpu_id: u8, _boot_ip: u64, _fdt_start: u64) -> cpu::Result<()> {
         unimplemented!()
     }
 
     #[cfg(target_arch = "aarch64")]
-    fn get_sys_reg(&self, sys_reg: u32) -> cpu::Result<u64> {
+    fn get_sys_reg(&self, _sys_reg: u32) -> cpu::Result<u64> {
         unimplemented!()
     }
 
@@ -1444,7 +1445,7 @@ impl cpu::Vcpu for MshvVcpu {
     ///
     /// Set CPU state for aarch64 guest.
     ///
-    fn set_state(&self, state: &CpuState) -> cpu::Result<()> {
+    fn set_state(&self, _state: &CpuState) -> cpu::Result<()> {
         unimplemented!()
     }
 
@@ -2170,7 +2171,7 @@ impl vm::Vm for MshvVm {
     }
 
     #[cfg(target_arch = "aarch64")]
-    fn create_vgic(&self, config: VgicConfig) -> vm::Result<Arc<Mutex<dyn Vgic>>> {
+    fn create_vgic(&self, _config: VgicConfig) -> vm::Result<Arc<Mutex<dyn Vgic>>> {
         unimplemented!()
     }