HVM capability enhancement: asynchronous upcalls to ROS userspace

[palacios.git] / palacios / src / palacios / vmx.c

diff --git a/palacios/src/palacios/vmx.c b/palacios/src/palacios/vmx.c
index 23d631a..f45ffa3 100644 (file)
--- a/palacios/src/palacios/vmx.c
+++ b/palacios/src/palacios/vmx.c
@@ -546,7 +546,10 @@ static int init_vmcs_bios(struct guest_info * core, struct vmx_data * vmx_state)
     vmx_ret |= check_vmcs_write(VMCS_LINK_PTR_HIGH, (addr_t)0xffffffffUL);
 #endif
 
-
+    if (vmx_ret != VMX_SUCCESS) { 
+       PrintError(core->vm_info, core, "Error configuring VMX\n");
+       return -1;
+    }
 
  
 
@@ -621,6 +624,11 @@ static void __init_vmx_vmcs(void * arg) {
     PrintDebug(core->vm_info, core, "Serializing VMCS: %p\n", (void *)vmx_state->vmcs_ptr_phys);
     vmx_ret = vmcs_clear(vmx_state->vmcs_ptr_phys);
 
+    if (vmx_ret != VMX_SUCCESS) { 
+       PrintError(core->vm_info,core,"VMCS Clear failed\n");
+       return;
+    }
+
     core->core_run_state = CORE_STOPPED;
     return;
 }
@@ -986,6 +994,10 @@ int v3_vmx_enter(struct guest_info * info) {
     v3_mem_track_entry(info);
 #endif 
 
+#ifdef V3_CONFIG_HVM
+    v3_handle_hvm_entry(info);
+#endif
+
     // Update timer devices late after being in the VM so that as much 
     // of the time in the VM is accounted for as possible. Also do it before
     // updating IRQ entry state so that any interrupts the timers raise get 
@@ -1130,6 +1142,8 @@ int v3_vmx_enter(struct guest_info * info) {
 
     if (info->shdw_pg_mode == NESTED_PAGING) {
        check_vmcs_read(VMCS_GUEST_PHYS_ADDR, &(exit_info.ept_fault_addr));
+    } else {
+       exit_info.ept_fault_addr = 0;
     }
 
     //PrintDebug(info->vm_info, info, "VMX Exit taken, id-qual: %u-%lu\n", exit_info.exit_reason, exit_info.exit_qual);
@@ -1186,6 +1200,10 @@ int v3_vmx_enter(struct guest_info * info) {
        v3_handle_timeouts(info, guest_cycles);
     }
 
+#ifdef V3_CONFIG_HVM
+    v3_handle_hvm_exit(info);
+#endif
+
 #ifdef V3_CONFIG_MEM_TRACK
     v3_mem_track_exit(info);
 #endif 
@@ -1259,6 +1277,18 @@ int v3_start_vmx_guest(struct guest_info * info) {
        }
        
        
+#ifdef V3_CONFIG_HVM
+        if (v3_handle_hvm_reset(info) > 0) {
+           continue;
+        }
+#endif
+       
+#ifdef V3_CONFIG_MULTIBOOT
+        if (v3_handle_multiboot_reset(info) > 0) {
+           continue;
+        }
+#endif
+
 #ifdef V3_CONFIG_PMU_TELEMETRY
        v3_pmu_telemetry_start(info);
 #endif
@@ -1284,9 +1314,15 @@ int v3_start_vmx_guest(struct guest_info * info) {
             linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
             
             if (info->mem_mode == PHYSICAL_MEM) {
-                v3_gpa_to_hva(info, linear_addr, &host_addr);
+                if (v3_gpa_to_hva(info, linear_addr, &host_addr)) {
+                   PrintError(info->vm_info, info, "Cannot translate address\n");
+                   return -1;
+               }
             } else if (info->mem_mode == VIRTUAL_MEM) {
-                v3_gva_to_hva(info, linear_addr, &host_addr);
+                if (v3_gva_to_hva(info, linear_addr, &host_addr)) {
+                   PrintError(info->vm_info, info, "Cannot translate address\n");
+                   return -1;
+               }
             }
             
             V3_Print(info->vm_info, info, "VMX core %u: Host Address of rip = 0x%p\n", info->vcpu_id, (void *)host_addr);