Move hypervisor/virtual_machine from log to tracing crate (#1276)

* Move hypervisor/virtual_machine from log to tracing crate

Signed-off-by: Shailesh Vashishth <shavashishth@gmail.com>

* mem_profile refactor to move to tracing crate

Signed-off-by: Shailesh Vashishth <shavashishth@gmail.com>

---------

Signed-off-by: Shailesh Vashishth <shavashishth@gmail.com>

Author: vshailesh

src/hyperlight_host/src/hypervisor/virtual_machine/kvm.rs

@@ -69,16 +69,16 @@ pub(crate) fn is_hypervisor_present() -> bool {
         match api_version {
             version if version == 12 && kvm.check_extension(UserMemory) => true,
             12 => {
-                log::info!("KVM does not have KVM_CAP_USER_MEMORY capability");
+                tracing::info!("KVM does not have KVM_CAP_USER_MEMORY capability");
                 false
             }
             version => {
-                log::info!("KVM GET_API_VERSION returned {}, expected 12", version);
+                tracing::info!("KVM GET_API_VERSION returned {}, expected 12", version);
                 false
             }
         }
     } else {
-        log::info!("KVM is not available on this system");
+        tracing::info!("KVM is not available on this system");
         false
     }
 }
@@ -346,7 +346,7 @@ impl DebuggableVm for KvmVm {
     fn set_debug(&mut self, enable: bool) -> std::result::Result<(), DebugError> {
         use kvm_bindings::{KVM_GUESTDBG_ENABLE, KVM_GUESTDBG_USE_HW_BP, KVM_GUESTDBG_USE_SW_BP};
 
-        log::info!("Setting debug to {}", enable);
+        tracing::info!("Setting debug to {}", enable);
         if enable {
             self.debug_regs.control |=
                 KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_USE_SW_BP;
@@ -363,7 +363,7 @@ impl DebuggableVm for KvmVm {
     fn set_single_step(&mut self, enable: bool) -> std::result::Result<(), DebugError> {
         use kvm_bindings::KVM_GUESTDBG_SINGLESTEP;
 
-        log::info!("Setting single step to {}", enable);
+        tracing::info!("Setting single step to {}", enable);
         if enable {
             self.debug_regs.control |= KVM_GUESTDBG_SINGLESTEP;
         } else {

src/hyperlight_host/src/hypervisor/virtual_machine/mshv.rs

@@ -56,7 +56,7 @@ pub(crate) fn is_hypervisor_present() -> bool {
     match Mshv::new() {
         Ok(_) => true,
         Err(_) => {
-            log::info!("MSHV is not available on this system");
+            tracing::info!("MSHV is not available on this system");
             false
         }
     }

src/hyperlight_host/src/hypervisor/virtual_machine/whp.rs

@@ -59,7 +59,7 @@ pub(crate) fn is_hypervisor_present() -> bool {
     } {
         Ok(_) => unsafe { capability.HypervisorPresent.as_bool() },
         Err(_) => {
-            log::info!("Windows Hypervisor Platform is not available on this system");
+            tracing::info!("Windows Hypervisor Platform is not available on this system");
             false
         }
     }
@@ -770,7 +770,7 @@ impl Drop for WhpVm {
         // (HyperlightVm::drop() runs before its fields are dropped, so
         // set_dropped() completes before this Drop impl runs.)
         if let Err(e) = unsafe { WHvDeletePartition(self.partition) } {
-            log::error!("Failed to delete partition: {}", e);
+            tracing::error!("Failed to delete partition: {}", e);
         }
     }
 }

src/hyperlight_host/src/sandbox/trace/mem_profile.rs

@@ -63,7 +63,7 @@ impl MemTraceInfo {
         path.push(uuid::Uuid::new_v4().to_string());
         path.set_extension("trace");
 
-        log::info!("Creating trace file at: {}", path.display());
+        tracing::info!("Creating trace file at: {}", path.display());
         println!("Creating trace file at: {}", path.display());
 
         let hash = unwind_module.hash();