Changes to try to make time handling better. Also disabled TSC offsetting for now...

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

diff --git a/palacios/src/palacios/vmx.c b/palacios/src/palacios/vmx.c
index aa821da..5a48935 100644 (file)
--- a/palacios/src/palacios/vmx.c
+++ b/palacios/src/palacios/vmx.c
@@ -594,7 +594,12 @@ int v3_vmx_load_core(struct guest_info * core, void * ctx){
     /* Get the CPU mode to set the guest_ia32e entry ctrl */
 
     if (core->shdw_pg_mode == SHADOW_PAGING) {
-       if (shadow_cr0->pg){
+       if (v3_get_vm_mem_mode(core) == VIRTUAL_MEM) {
+           if (v3_activate_shadow_pt(core) == -1) {
+               PrintError("Failed to activate shadow page tables\n");
+               return -1;
+           }
+       } else {
            if (v3_activate_passthrough_pt(core) == -1) {
                PrintError("Failed to activate passthrough page tables\n");
                return -1;
@@ -833,11 +838,10 @@ int v3_vmx_enter(struct guest_info * info) {
     // Perform last-minute time bookkeeping prior to entering the VM
     v3_time_enter_vm(info);
 
-    tsc_offset_high = (uint32_t)((v3_tsc_host_offset(&info->time_state) >> 32) & 0xffffffff);
-    tsc_offset_low = (uint32_t)(v3_tsc_host_offset(&info->time_state) & 0xffffffff);
-    check_vmcs_write(VMCS_TSC_OFFSET_HIGH, tsc_offset_high);
-    check_vmcs_write(VMCS_TSC_OFFSET, tsc_offset_low);
-
+    // tsc_offset_high = (uint32_t)((v3_tsc_host_offset(&info->time_state) >> 32) & 0xffffffff);
+    // tsc_offset_low = (uint32_t)(v3_tsc_host_offset(&info->time_state) & 0xffffffff);
+    // check_vmcs_write(VMCS_TSC_OFFSET_HIGH, tsc_offset_high);
+    // check_vmcs_write(VMCS_TSC_OFFSET, tsc_offset_low);
 
     if (v3_update_vmcs_host_state(info)) {
        v3_enable_ints();
@@ -950,6 +954,9 @@ int v3_start_vmx_guest(struct guest_info * info) {
         }
        
        PrintDebug("VMX core %u initialized\n", info->vcpu_id);
+
+       // We'll be paranoid about race conditions here
+       v3_wait_at_barrier(info);
     }