X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm.c;h=cd741c9f3e414d039145ed467d6e7a38c3d35a44;hb=281d544b5352321631fb51c394e1ae0a9680b752;hp=d23c56d8610115f7ef1ec256be06f1f30eb779da;hpb=382829fe58cb541af371547325c5502e37032ecd;p=palacios.git

diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c
index d23c56d..cd741c9 100644
--- a/palacios/src/palacios/svm.c
+++ b/palacios/src/palacios/svm.c
@@ -1,4 +1,3 @@
-
 /* 
  * This file is part of the Palacios Virtual Machine Monitor developed
  * by the V3VEE Project with funding from the United States National 
@@ -36,6 +35,11 @@
 #include <palacios/svm_msr.h>
 
 #include <palacios/vmm_rbtree.h>
+#include <palacios/vmm_barrier.h>
+
+#ifdef V3_CONFIG_CHECKPOINT
+#include <palacios/vmm_checkpoint.h>
+#endif
 
 #include <palacios/vmm_direct_paging.h>
 
@@ -81,6 +85,25 @@ static vmcb_t * Allocate_VMCB() {
 }
 
 
+static int v3_svm_handle_efer_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data)
+{
+    int status;
+
+    // Call arch-independent handler
+    if ((status = v3_handle_efer_write(core, msr, src, priv_data)) != 0) {
+	return status;
+    }
+
+    // SVM-specific code
+    {
+	// Ensure that hardware visible EFER.SVME bit is set (SVM Enable)
+	struct efer_64 * hw_efer = (struct efer_64 *)&(core->ctrl_regs.efer);
+	hw_efer->svme = 1;
+    }
+
+    return 0;
+}
+
 
 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info * core) {
     vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
@@ -221,7 +244,7 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info * core) {
 
     v3_hook_msr(core->vm_info, EFER_MSR, 
 		&v3_handle_efer_read,
-		&v3_handle_efer_write, 
+		&v3_svm_handle_efer_write, 
 		core);
 
     if (core->shdw_pg_mode == SHADOW_PAGING) {
@@ -319,6 +342,27 @@ int v3_deinit_svm_vmcb(struct guest_info * core) {
 }
 
 
+#ifdef V3_CONFIG_CHECKPOINT
+int v3_svm_save_core(struct guest_info * core, void * ctx){
+
+    v3_chkpt_save_8(ctx, "cpl", &(core->cpl));
+    v3_chkpt_save(ctx, "vmcb_data", PAGE_SIZE, core->vmm_data);
+
+    return 0;
+}
+
+int v3_svm_load_core(struct guest_info * core, void * ctx){
+    
+    v3_chkpt_load_8(ctx, "cpl", &(core->cpl));
+
+    if (v3_chkpt_load(ctx, "vmcb_data", PAGE_SIZE, core->vmm_data) == -1) {
+	return -1;
+    }
+
+    return 0;
+}
+#endif
+
 static int update_irq_exit_state(struct guest_info * info) {
     vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
 
@@ -425,6 +469,18 @@ static int update_irq_entry_state(struct guest_info * info) {
 		break;
 	    case V3_SOFTWARE_INTR:
 		guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
+
+#ifdef V3_CONFIG_DEBUG_INTERRUPTS
+		PrintDebug("Injecting software interrupt --  type: %d, vector: %d\n", 
+			   SVM_INJECTION_SOFT_INTR, info->intr_core_state.swintr_vector);
+#endif
+		guest_ctrl->EVENTINJ.vector = info->intr_core_state.swintr_vector;
+		guest_ctrl->EVENTINJ.valid = 1;
+            
+		/* reset swintr state */
+		info->intr_core_state.swintr_posted = 0;
+		info->intr_core_state.swintr_vector = 0;
+		
 		break;
 	    case V3_VIRTUAL_IRQ:
 		guest_ctrl->EVENTINJ.type = SVM_INJECTION_IRQ;
@@ -515,6 +571,7 @@ int v3_svm_enter(struct guest_info * info) {
     v3_time_enter_vm(info);
     guest_ctrl->TSC_OFFSET = v3_tsc_host_offset(&info->time_state);
 
+
     //V3_Print("Calling v3_svm_launch\n");
 
     v3_svm_launch((vmcb_t *)V3_PAddr(info->vmm_data), &(info->vm_regs), (vmcb_t *)host_vmcbs[V3_Get_CPU()]);
@@ -602,6 +659,9 @@ int v3_start_svm_guest(struct guest_info * info) {
 	}
 
 	PrintDebug("SVM core %u(on %u) initialized\n", info->vcpu_id, info->pcpu_id);
+
+	// We'll be paranoid about race conditions here
+	v3_wait_at_barrier(info);
     } 
 
     PrintDebug("SVM core %u(on %u): I am starting at CS=0x%x (base=0x%p, limit=0x%x),  RIP=0x%p\n", 
@@ -661,6 +721,8 @@ int v3_start_svm_guest(struct guest_info * info) {
 	    break;
 	}
 
+	v3_wait_at_barrier(info);
+
 
 	if (info->vm_info->run_state == VM_STOPPED) {
 	    info->core_run_state = CORE_STOPPED;