X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm.c;h=27edd92ac677bf2c79b4cca6e1658a59eae0a081;hb=e8c6db81c1ad76fab0f6a783c03654145e41599d;hp=de1edeefcab491ab555a007e4bbbf385a85fe020;hpb=0b618729352e97aa06ec2f19f33595f6caaeb9d1;p=palacios.git

diff --git a/palacios/src/palacios/vmm.c b/palacios/src/palacios/vmm.c
index de1edee..27edd92 100644
--- a/palacios/src/palacios/vmm.c
+++ b/palacios/src/palacios/vmm.c
@@ -1,37 +1,198 @@
+/* 
+ * 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/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>
+
+#ifdef CONFIG_SVM
 #include <palacios/svm.h>
+#endif
+#ifdef CONFIG_VMX
 #include <palacios/vmx.h>
-#include <palacios/vmm_intr.h>
+#endif
+
+
+v3_cpu_arch_t v3_cpu_types[CONFIG_MAX_CPUS];
+struct v3_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;
+}
+
 
-uint_t vmm_cpu_type;
+struct vmm_init_arg {
+    int cpu_id;
+    struct v3_ctrl_ops * vmm_ops;
+};
 
+static void init_cpu(void * arg) {
+    struct vmm_init_arg * vmm_arg = (struct vmm_init_arg *)arg;
+    int cpu_id = vmm_arg->cpu_id;
+    struct v3_ctrl_ops * vmm_ops = vmm_arg->vmm_ops;
 
+#ifdef CONFIG_SVM
+    if (v3_is_svm_capable()) {
+        PrintDebug("Machine is SVM Capable\n");
+        v3_init_svm_cpu(cpu_id);
+	
+	if (cpu_id == 0) {
+	    v3_init_svm_hooks(vmm_ops);
+	}
+    } else 
+#endif
+#ifdef CONFIG_VMX
+    if (v3_is_vmx_capable()) {
+	PrintDebug("Machine is VMX Capable\n");
+	v3_init_vmx_cpu(cpu_id);
 
+	if (cpu_id == 0) {
+	    v3_init_vmx_hooks(vmm_ops);
+	}	
+    } else 
+#endif
+    {
+       PrintError("CPU has no virtualization Extensions\n");
+    }
+}
+
+
+
+void Init_V3(struct v3_os_hooks * hooks, struct v3_ctrl_ops * vmm_ops, int num_cpus) {
+    int i;
+    struct vmm_init_arg arg;
+    arg.vmm_ops = vmm_ops;    
+
+    // Set global variables. 
+    os_hooks = hooks;
+
+    for (i = 0; i < CONFIG_MAX_CPUS; i++) {
+	v3_cpu_types[i] = V3_INVALID_CPU;
+    }
 
-struct vmm_os_hooks * os_hooks = NULL;
+    // Register all the possible device types
+    v3_init_devices();
 
 
+#ifdef INSTRUMENT_VMM
+    v3_init_instrumentation();
+#endif
 
+    vmm_ops->allocate_guest = &allocate_guest;
 
 
-void Init_VMM(struct vmm_os_hooks * hooks, struct vmm_ctrl_ops * vmm_ops) {
-  vmm_cpu_type = VMM_INVALID_CPU;
+    if ((hooks) && (hooks->call_on_cpu)) {
+
+	for (i = 0; i < num_cpus; i++) {
+	    arg.cpu_id = i;
+
+	    V3_Print("Initializing VMM extensions on cpu %d\n", i);
+	    hooks->call_on_cpu(i, &init_cpu, &arg);
+	}
+    }
+
+
+}
 
-  os_hooks = hooks;
 
 
-  if (is_svm_capable()) {
-    vmm_cpu_type = VMM_SVM_CPU;
-    PrintDebug("Machine is SVM Capable\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);
+    }
+}
+
+/* 
+ * unconditional cpu yield 
+ * if the yielding thread is a guest context, the guest quantum is reset on resumption 
+ * Non guest context threads should call this function with a NULL argument
+ */
+void v3_yield(struct guest_info * info) {
+    V3_Yield();
+
+    if (info) {
+	rdtscll(info->yield_start_cycle);
+    }
+}
+
+
 
-    Init_SVM(vmm_ops);
+void v3_interrupt_cpu(struct guest_info * info, int logical_cpu) {
+    extern struct v3_os_hooks * os_hooks;
 
-    /*
-  } 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");
-  }
+    if ((os_hooks) && (os_hooks)->interrupt_cpu) {
+	(os_hooks)->interrupt_cpu(info, logical_cpu);
+    }
 }