X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmx.c;h=ca875bb2ec806ff8aa2ab49e0952fa8d0dced4c0;hb=281d544b5352321631fb51c394e1ae0a9680b752;hp=aa821daee83534a9be6022d2ff7cc9711821d9ce;hpb=6ee36e0a7e4585bd0e4235eeb60644fffe230af3;p=palacios.git

diff --git a/palacios/src/palacios/vmx.c b/palacios/src/palacios/vmx.c
index aa821da..ca875bb 100644
--- a/palacios/src/palacios/vmx.c
+++ b/palacios/src/palacios/vmx.c
@@ -136,53 +136,6 @@ static int init_vmcs_bios(struct guest_info * core, struct vmx_data * vmx_state)
     /******* Setup Host State **********/
 
     /* Cache GDTR, IDTR, and TR in host struct */
-    addr_t gdtr_base;
-    struct {
-        uint16_t selector;
-        addr_t   base;
-    } __attribute__((packed)) tmp_seg;
-    
-
-    __asm__ __volatile__(
-			 "sgdt (%0);"
-			 :
-			 : "q"(&tmp_seg)
-			 : "memory"
-			 );
-    gdtr_base = tmp_seg.base;
-    vmx_state->host_state.gdtr.base = gdtr_base;
-
-    __asm__ __volatile__(
-			 "sidt (%0);"
-			 :
-			 : "q"(&tmp_seg)
-			 : "memory"
-			 );
-    vmx_state->host_state.idtr.base = tmp_seg.base;
-
-    __asm__ __volatile__(
-			 "str (%0);"
-			 :
-			 : "q"(&tmp_seg)
-			 : "memory"
-			 );
-    vmx_state->host_state.tr.selector = tmp_seg.selector;
-
-    /* The GDTR *index* is bits 3-15 of the selector. */
-    struct tss_descriptor * desc = NULL;
-    desc = (struct tss_descriptor *)(gdtr_base + (8 * (tmp_seg.selector >> 3)));
-
-    tmp_seg.base = ((desc->base1) |
-		    (desc->base2 << 16) |
-		    (desc->base3 << 24) |
-#ifdef __V3_64BIT__
-		    ((uint64_t)desc->base4 << 32)
-#else 
-		    (0)
-#endif
-		    );
-
-    vmx_state->host_state.tr.base = tmp_seg.base;
 
 
     /********** Setup VMX Control Fields ***********/
@@ -213,10 +166,6 @@ static int init_vmcs_bios(struct guest_info * core, struct vmx_data * vmx_state)
 
 
 
-    
-
-
-
 #ifdef __V3_64BIT__
     // Ensure host runs in 64-bit mode at each VM EXIT
     vmx_state->exit_ctrls.host_64_on = 1;
@@ -594,7 +543,12 @@ 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;
@@ -607,6 +561,14 @@ int v3_vmx_load_core(struct guest_info * core, void * ctx){
 #endif
 
 
+void v3_flush_vmx_vm_core(struct guest_info * core) {
+    struct vmx_data * vmx_info = (struct vmx_data *)(core->vmm_data);
+    vmcs_clear(vmx_info->vmcs_ptr_phys);
+    vmx_info->state = VMX_UNLAUNCHED;
+}
+
+
+
 static int update_irq_exit_state(struct guest_info * info) {
     struct vmx_exit_idt_vec_info idt_vec_info;
 
@@ -838,7 +800,6 @@ int v3_vmx_enter(struct guest_info * info) {
     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();
         PrintError("Could not write host state\n");
@@ -856,19 +817,22 @@ int v3_vmx_enter(struct guest_info * info) {
 	ret = v3_vmx_resume(&(info->vm_regs), info, &(info->ctrl_regs));
     }
     
+
+
     //  PrintDebug("VMX Exit: ret=%d\n", ret);
 
     if (ret != VMX_SUCCESS) {
 	uint32_t error = 0;
-
         vmcs_read(VMCS_INSTR_ERR, &error);
 
 	v3_enable_ints();
 
-        PrintError("VMENTRY Error: %d\n", error);
+	PrintError("VMENTRY Error: %d (launch_ret = %d)\n", error, ret);
 	return -1;
     }
 
+
+
     // Immediate exit from VM time bookkeeping
     v3_time_exit_vm(info);
 
@@ -950,6 +914,9 @@ 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);
     }