GuestActivityState Enum created

hypervisor/src/intel/mod.rs

@@ -10,6 +10,7 @@ pub mod page;
 pub mod paging;
 pub mod segmentation;
 pub mod shared;
+pub mod state;
 pub mod support;
 pub mod vm;
 pub mod vmcs;

hypervisor/src/intel/state.rs

@@ -0,0 +1,17 @@
+/// Represents the activity state of a logical processor in VMX operation.
+#[repr(u32)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub enum GuestActivityState {
+    /// The logical processor is executing instructions normally.
+    Active = 0x00000000,
+
+    /// The logical processor is inactive because it executed the HLT instruction.
+    Hlt = 0x00000001,
+
+    /// The logical processor is inactive because it incurred a triple fault
+    /// or some other serious error.
+    Shutdown = 0x00000002,
+
+    /// The logical processor is inactive because it is waiting for a startup-IPI (SIPI).
+    WaitForSipi = 0x00000003,
+}

hypervisor/src/intel/vmexit/init.rs

@@ -10,6 +10,7 @@ use {
         capture::GuestRegisters,
         invvpid::invvpid_single_context,
         segmentation::VmxSegmentAccessRights,
+        state::GuestActivityState,
         support::{
             cr2_write, dr0_read, dr0_write, dr1_read, dr1_write, dr2_read, dr2_write, dr3_read,
             dr3_write, dr6_read, dr6_write, dr7_read, rdmsr, vmread, vmwrite,
@@ -218,8 +219,10 @@ pub fn handle_init_signal(guest_registers: &mut GuestRegisters) -> ExitType {
     //
     // Set the activity state to "Wait for SIPI".
     //
-    let vmx_wait_for_sipi = 0x3u64;
-    vmwrite(vmcs::guest::ACTIVITY_STATE, vmx_wait_for_sipi);
+    vmwrite(
+        vmcs::guest::ACTIVITY_STATE,
+        GuestActivityState::WaitForSipi as u32,
+    );
 
     ExitType::Continue
 }

hypervisor/src/intel/vmexit/sipi.rs

@@ -8,6 +8,7 @@
 use {
     crate::intel::{
         capture::GuestRegisters,
+        state::GuestActivityState,
         support::{vmread, vmwrite},
         vmexit::ExitType,
     },
@@ -36,8 +37,10 @@ pub fn handle_sipi_signal(guest_registers: &mut GuestRegisters) -> ExitType {
     guest_registers.rip = 0x0u64;
     vmwrite(vmcs::guest::RIP, guest_registers.rip);
 
-    let vmx_active = 0x0u64;
-    vmwrite(vmcs::guest::ACTIVITY_STATE, vmx_active);
+    vmwrite(
+        vmcs::guest::ACTIVITY_STATE,
+        GuestActivityState::Active as u32,
+    );
 
     ExitType::Continue
 }