X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmx.c;h=ee12c08a99522691d210f1518e7a5280404da00f;hb=67a6b30f915c83005bf0e3ae4a2d9f9598b10013;hp=11522f44ba3e92d2978199cb38ab893a33f778ed;hpb=c33edc166097522d640b65af5376ca940ac13838;p=palacios-OLD.git

diff --git a/palacios/src/palacios/vmx.c b/palacios/src/palacios/vmx.c
index 11522f4..ee12c08 100644
--- a/palacios/src/palacios/vmx.c
+++ b/palacios/src/palacios/vmx.c
@@ -34,6 +34,10 @@
 #include <palacios/vmm_decoder.h>
 #include <palacios/vmm_barrier.h>
 
+#ifdef V3_CONFIG_CHECKPOINT
+#include <palacios/vmm_checkpoint.h>
+#endif
+
 #include <palacios/vmx_ept.h>
 #include <palacios/vmx_assist.h>
 #include <palacios/vmx_hw_info.h>
@@ -132,53 +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 ***********/
@@ -209,10 +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;
@@ -559,6 +512,63 @@ int v3_deinit_vmx_vmcs(struct guest_info * core) {
 }
 
 
+
+#ifdef V3_CONFIG_CHECKPOINT
+/* 
+ * JRL: This is broken
+ */
+int v3_vmx_save_core(struct guest_info * core, void * ctx){
+    uint64_t vmcs_ptr = vmcs_store();
+
+    v3_chkpt_save(ctx, "vmcs_data", PAGE_SIZE, (void *)vmcs_ptr);
+
+    return 0;
+}
+
+int v3_vmx_load_core(struct guest_info * core, void * ctx){
+    struct vmx_data * vmx_info = (struct vmx_data *)(core->vmm_data);
+    struct cr0_32 * shadow_cr0;
+    char vmcs[PAGE_SIZE_4KB];
+
+    v3_chkpt_load(ctx, "vmcs_data", PAGE_SIZE_4KB, vmcs);
+
+    vmcs_clear(vmx_info->vmcs_ptr_phys);
+    vmcs_load((addr_t)vmcs);
+
+    v3_vmx_save_vmcs(core);
+
+    shadow_cr0 = (struct cr0_32 *)&(core->ctrl_regs.cr0);
+
+
+    /* Get the CPU mode to set the guest_ia32e entry ctrl */
+
+    if (core->shdw_pg_mode == SHADOW_PAGING) {
+	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;
+	    }
+	}
+    }
+
+    return 0;
+}
+#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;
 
@@ -800,27 +810,28 @@ int v3_vmx_enter(struct guest_info * info) {
 
     if (vmx_info->state == VMX_UNLAUNCHED) {
 	vmx_info->state = VMX_LAUNCHED;
-
-	info->vm_info->run_state = VM_RUNNING;
 	ret = v3_vmx_launch(&(info->vm_regs), info, &(info->ctrl_regs));
     } else {
 	V3_ASSERT(vmx_info->state != VMX_UNLAUNCHED);
 	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);
 
@@ -891,17 +902,25 @@ int v3_start_vmx_guest(struct guest_info * info) {
 
     if (info->vcpu_id == 0) {
 	info->core_run_state = CORE_RUNNING;
-	info->vm_info->run_state = VM_RUNNING;
     } else {
 
         PrintDebug("VMX core %u: Waiting for core initialization\n", info->vcpu_id);
 
         while (info->core_run_state == CORE_STOPPED) {
+
+	    if (info->vm_info->run_state == VM_STOPPED) {
+		// The VM was stopped before this core was initialized. 
+		return 0;
+	    }
+
             v3_yield(info);
             //PrintDebug("VMX core %u: still waiting for INIT\n",info->vcpu_id);
         }
 	
 	PrintDebug("VMX core %u initialized\n", info->vcpu_id);
+
+	// We'll be paranoid about race conditions here
+	v3_wait_at_barrier(info);
     }