X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm.c;h=82073f0619b6c54e1951f24c608698ddbc642572;hb=e23a867d9dcecc70fc76adc0f89404dbc50e5b78;hp=7ae2239cfd3ba5cc6e97c14396aa1d803d3ee508;hpb=28b1d0ae6db40cb3e1f5a9b3596b625d2f2af0e4;p=palacios.git

diff --git a/palacios/src/palacios/vmm.c b/palacios/src/palacios/vmm.c
index 7ae2239..82073f0 100644
--- a/palacios/src/palacios/vmm.c
+++ b/palacios/src/palacios/vmm.c
@@ -1,36 +1,131 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
 #include <palacios/vmm.h>
 #include <palacios/svm.h>
 #include <palacios/vmx.h>
 #include <palacios/vmm_intr.h>
+#include <palacios/vmm_config.h>
+#include <palacios/vm_guest.h>
+#include <palacios/vmm_instrument.h>
+#include <palacios/vmm_ctrl_regs.h>
+#include <palacios/vmm_lowlevel.h>
+
 
-uint_t vmm_cpu_type;
 
 
+v3_cpu_arch_t v3_cpu_type;
+struct v3_os_hooks * os_hooks = NULL;
 
 
-struct vmm_os_hooks * os_hooks = NULL;
+
+static struct guest_info * allocate_guest() {
+    void * info = V3_Malloc(sizeof(struct guest_info));
+    memset(info, 0, sizeof(struct guest_info));
+    return info;
+}
 
 
 
+void Init_V3(struct v3_os_hooks * hooks, struct v3_ctrl_ops * vmm_ops) {
+    
+    // Set global variables. 
+    os_hooks = hooks;
+    v3_cpu_type = V3_INVALID_CPU;
 
-void Init_VMM(struct vmm_os_hooks * hooks, struct vmm_ctrl_ops * vmm_ops) {
-  vmm_cpu_type = VMM_INVALID_CPU;
+    // Register all the possible device types
+    v3_init_devices();
 
-  os_hooks = hooks;
 
+#ifdef INSTRUMENT_VMM
+    v3_init_instrumentation();
+#endif
+
+    vmm_ops->allocate_guest = &allocate_guest;
+
+    if (v3_is_svm_capable()) {
+        PrintDebug("Machine is SVM Capable\n");
+        v3_init_SVM(vmm_ops);
+    } else if (v3_is_vmx_capable()) {
+        PrintDebug("Machine is VMX Capable\n");
+        v3_init_vmx(vmm_ops);
+    } else {
+        PrintDebug("CPU has no virtualization Extensions\n");
+    }
+}
 
-  if (is_svm_capable()) {
-    vmm_cpu_type = VMM_SVM_CPU;
-    PrintDebug("Machine is SVM Capable\n");
 
-    Init_SVM(vmm_ops);
 
-    /*
-  } else if (is_vmx_capable()) {
-    vmm_cpu_type = VMM_VMX_CPU;
-    PrintDebug("Machine is VMX Capable\n");
-    //Init_VMX();*/
-  } else {
-    PrintDebug("CPU has no virtualization Extensions\n");
-  }
+#ifdef __V3_32BIT__
+
+v3_cpu_mode_t v3_get_host_cpu_mode() {
+    uint32_t cr4_val;
+    struct cr4_32 * cr4;
+
+    __asm__ (
+	     "movl %%cr4, %0; "
+	     : "=r"(cr4_val) 
+	     );
+
+    
+    cr4 = (struct cr4_32 *)&(cr4_val);
+
+    if (cr4->pae == 1) {
+	return PROTECTED_PAE;
+    } else {
+	return PROTECTED;
+    }
+}
+
+#elif __V3_64BIT__
+
+v3_cpu_mode_t v3_get_host_cpu_mode() {
+    return LONG;
+}
+
+#endif 
+
+
+#define V3_Yield(addr)					\
+    do {						\
+	extern struct v3_os_hooks * os_hooks;		\
+	if ((os_hooks) && (os_hooks)->yield_cpu) {	\
+	    (os_hooks)->yield_cpu();			\
+	}						\
+    } while (0)						\
+
+
+void v3_yield_cond(struct guest_info * info) {
+    uint64_t cur_cycle;
+    rdtscll(cur_cycle);
+
+    if (cur_cycle > (info->yield_start_cycle + info->yield_cycle_period)) {
+
+	PrintDebug("Conditional Yield (cur_cyle=%p, start_cycle=%p, period=%p)\n", 
+		   (void *)cur_cycle, (void *)info->yield_start_cycle, (void *)info->yield_cycle_period);
+
+	V3_Yield();
+	rdtscll(info->yield_start_cycle);
+    }
+}
+
+void v3_yield(struct guest_info * info) {
+    V3_Yield();
+    rdtscll(info->yield_start_cycle);
 }