Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


Basic HRT startup for HVM, plus assorted cleanup
[palacios.git] / palacios / src / palacios / vm_guest.c
index 5dcf707..d325e6b 100644 (file)
-/* Northwestern University */
-/* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
+/* 
+ * 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/vm_guest.h>
 #include <palacios/vmm_ctrl_regs.h>
 #include <palacios/vmm.h>
+#include <palacios/vmm_decoder.h>
+#include <palacios/vmcb.h>
+#include <palacios/vm_guest_mem.h>
+#include <palacios/vmm_lowlevel.h>
+#include <palacios/vmm_sprintf.h>
+#include <palacios/vmm_xed.h>
+#include <palacios/vmm_direct_paging.h>
+#include <palacios/vmm_barrier.h>
+#include <palacios/vmm_debug.h>
+
+#ifdef V3_CONFIG_MEM_TRACK
+#include <palacios/vmm_mem_track.h>
+#endif
+
+
+v3_cpu_mode_t v3_get_vm_cpu_mode(struct guest_info * info) {
+    struct cr0_32 * cr0;
+    struct efer_64 * efer;
+    struct v3_segment * cs = &(info->segments.cs);
+    struct cr4_32 * cr4;
 
+    if (info->shdw_pg_mode == SHADOW_PAGING) {
+       cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
+       efer = (struct efer_64 *)&(info->shdw_pg_state.guest_efer);
+        cr4 = (struct cr4_32 *)&(info->shdw_pg_state.guest_cr4);
+    } else if (info->shdw_pg_mode == NESTED_PAGING) {
+       cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
+       efer = (struct efer_64 *)&(info->ctrl_regs.efer);
+        cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
+    } else {
+        PrintError(info->vm_info, info, "Invalid Paging Mode...\n");
+       V3_ASSERT(info->vm_info, info, 0);
+       return -1;
+    }
 
-vm_cpu_mode_t get_cpu_mode(struct guest_info * info) {
-  struct cr0_32 * cr0;
-  struct cr4_32 * cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
-  struct efer_64 * efer = (struct efer_64 *)&(info->ctrl_regs.efer);
-  struct v3_segment * cs = &(info->segments.cs);
-
-  if (info->shdw_pg_mode == SHADOW_PAGING) {
-    cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
-  } else if (info->shdw_pg_mode == NESTED_PAGING) {
-    cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
-  } else {
-    PrintError("Invalid Paging Mode...\n");
-    V3_ASSERT(0);
-    return -1;
-  }
-
-  if (cr0->pe == 0) {
-    return REAL;
-  } else if ((cr4->pae == 0) && (efer->lma == 0)) {
-    return PROTECTED;
-  } else if (efer->lma == 0) {
-    return PROTECTED_PAE;
-  } else if ((efer->lma == 1) && (cs->long_mode == 1)) {
-    return LONG;
-  } else {
-    return LONG_32_COMPAT;
-  }
+    if (cr0->pe == 0) {
+       return REAL;
+    } else if ((cr4->pae == 0) && (efer->lme == 0)) {
+       return PROTECTED;
+    } else if (efer->lme == 0) {
+       return PROTECTED_PAE;
+    } else if ((efer->lme == 1) && (cs->long_mode == 1)) {
+       return LONG;
+    } else {
+       // What about LONG_16_COMPAT???
+       return LONG_32_COMPAT;
+    }
 }
 
-vm_mem_mode_t get_mem_mode(struct guest_info * info) {
-  struct cr0_32 * cr0;
+// Get address width in bytes
+uint_t v3_get_addr_width(struct guest_info * info) {
+    struct cr0_32 * cr0;
+    struct cr4_32 * cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
+    struct efer_64 * efer;
+    struct v3_segment * cs = &(info->segments.cs);
 
-  if (info->shdw_pg_mode == SHADOW_PAGING) {
-    cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
-  } else if (info->shdw_pg_mode == NESTED_PAGING) {
-    cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
-  } else {
-    PrintError("Invalid Paging Mode...\n");
-    V3_ASSERT(0);
-    return -1;
-  }
 
+    if (info->shdw_pg_mode == SHADOW_PAGING) {
+       cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
+       efer = (struct efer_64 *)&(info->shdw_pg_state.guest_efer);
+    } else if (info->shdw_pg_mode == NESTED_PAGING) {
+       cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
+       efer = (struct efer_64 *)&(info->ctrl_regs.efer);
+    } else {
+        PrintError(info->vm_info, info, "Invalid Paging Mode...\n");
+       V3_ASSERT(info->vm_info, info, 0);
+       return -1;
+    }
 
+    if (cr0->pe == 0) {
+       return 2;
+    } else if ((cr4->pae == 0) && (efer->lme == 0)) {
+       return 4;
+    } else if (efer->lme == 0) {
+       return 4;
+    } else if ((efer->lme == 1) && (cs->long_mode == 1)) {
+       return 8;
+    } else {
+       // What about LONG_16_COMPAT???
+       return 4;
+    }
+}
+
+
+static const uchar_t REAL_STR[] = "Real";
+static const uchar_t PROTECTED_STR[] = "Protected";
+static const uchar_t PROTECTED_PAE_STR[] = "Protected+PAE";
+static const uchar_t LONG_STR[] = "Long";
+static const uchar_t LONG_32_COMPAT_STR[] = "32bit Compat";
+static const uchar_t LONG_16_COMPAT_STR[] = "16bit Compat";
 
-  if (cr0->pg == 0) {
-    return PHYSICAL_MEM;
-  } else {
-    return VIRTUAL_MEM;
-  }
+const uchar_t * v3_cpu_mode_to_str(v3_cpu_mode_t mode) {
+    switch (mode) {
+       case REAL:
+           return REAL_STR;
+       case PROTECTED:
+           return PROTECTED_STR;
+       case PROTECTED_PAE:
+           return PROTECTED_PAE_STR;
+       case LONG:
+           return LONG_STR;
+       case LONG_32_COMPAT:
+           return LONG_32_COMPAT_STR;
+       case LONG_16_COMPAT:
+           return LONG_16_COMPAT_STR;
+       default:
+           return NULL;
+    }
 }
 
+v3_mem_mode_t v3_get_vm_mem_mode(struct guest_info * info) {
+    struct cr0_32 * cr0;
 
-void PrintV3Segments(struct guest_info * info) {
-  struct v3_segments * segs = &(info->segments);
-  int i = 0;
-  struct v3_segment * seg_ptr;
+    if (info->shdw_pg_mode == SHADOW_PAGING) {
+       cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
+    } else if (info->shdw_pg_mode == NESTED_PAGING) {
+       cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
+    } else {
+       PrintError(info->vm_info, info, "Invalid Paging Mode...\n");
+       V3_ASSERT(info->vm_info, info, 0);
+       return -1;
+    }
 
-  seg_ptr=(struct v3_segment *)segs;
-  
-  char *seg_names[] = {"CS", "DS" , "ES", "FS", "GS", "SS" , "LDTR", "GDTR", "IDTR", "TR", NULL};
-  PrintDebug("Segments\n");
+    if (cr0->pg == 0) {
+       return PHYSICAL_MEM;
+    } else {
+       return VIRTUAL_MEM;
+    }
+}
+
+static const uchar_t PHYS_MEM_STR[] = "Physical Memory";
+static const uchar_t VIRT_MEM_STR[] = "Virtual Memory";
 
-  for (i = 0; seg_names[i] != NULL; i++) {
+const uchar_t * v3_mem_mode_to_str(v3_mem_mode_t mode) {
+    switch (mode) {
+       case PHYSICAL_MEM:
+           return PHYS_MEM_STR;
+       case VIRTUAL_MEM:
+           return VIRT_MEM_STR;
+       default:
+           return NULL;
+    }
+}
 
-    PrintDebug("\t%s: Sel=%x, base=%x, limit=%x\n", seg_names[i], seg_ptr[i].selector, seg_ptr[i].base, seg_ptr[i].limit);
 
-  }
 
+
+
+
+
+#include <palacios/vmcs.h>
+#include <palacios/vmcb.h>
+static int info_hcall(struct guest_info * core, uint_t hcall_id, void * priv_data) {
+    extern v3_cpu_arch_t v3_mach_type;
+    int cpu_valid = 0;
+
+    V3_Print(core->vm_info, core, "************** Guest State ************\n");
+    v3_print_guest_state(core);
+    
+    // init SVM/VMX
+#ifdef V3_CONFIG_SVM
+    if ((v3_mach_type == V3_SVM_CPU) || (v3_mach_type == V3_SVM_REV3_CPU)) {
+       cpu_valid = 1;
+       PrintDebugVMCB((vmcb_t *)(core->vmm_data));
+    }
+#endif
+#ifdef V3_CONFIG_VMX
+    if ((v3_mach_type == V3_VMX_CPU) || (v3_mach_type == V3_VMX_EPT_CPU) || (v3_mach_type == V3_VMX_EPT_UG_CPU)) {
+       cpu_valid = 1;
+       v3_print_vmcs();
+    }
+#endif
+    if (!cpu_valid) {
+       PrintError(core->vm_info, core, "Invalid CPU Type 0x%x\n", v3_mach_type);
+       return -1;
+    }
+    
+
+    return 0;
 }
 
 
-void PrintV3CtrlRegs(struct guest_info * info) {
-  struct v3_ctrl_regs * regs = &(info->ctrl_regs);
-  int i = 0;
-  v3_reg_t * reg_ptr;
-  char * reg_names[] = {"CR0", "CR2", "CR3", "CR4", "CR8", "FLAGS", NULL};
+#ifdef V3_CONFIG_SVM
+#include <palacios/svm.h>
+#include <palacios/svm_io.h>
+#include <palacios/svm_msr.h>
+#include <palacios/svm_exits.h>
+#endif
+
+#ifdef V3_CONFIG_VMX
+#include <palacios/vmx.h>
+#include <palacios/vmx_io.h>
+#include <palacios/vmx_msr.h>
+#include <palacios/vmx_exits.h>
+#endif
+
+
+int v3_init_vm(struct v3_vm_info * vm) {
+    extern v3_cpu_arch_t v3_mach_type;
+
+    v3_init_events(vm);
+
+#ifdef V3_CONFIG_TELEMETRY
+    v3_init_telemetry(vm);
+#endif
 
-  reg_ptr= (v3_reg_t *)regs;
+    v3_init_exit_hooks(vm);
+    v3_init_hypercall_map(vm);
+    v3_init_io_map(vm);
+    v3_init_msr_map(vm);
+    v3_init_cpuid_map(vm);
+    v3_init_host_events(vm);
 
-  PrintDebug("32 bit Ctrl Regs:\n");
+    v3_init_intr_routers(vm);
+    v3_init_ext_manager(vm);
 
-  for (i = 0; reg_names[i] != NULL; i++) {
-    PrintDebug("\t%s=0x%x\n", reg_names[i], reg_ptr[i]);  
-  }
+    v3_init_barrier(vm);
+
+    // Initialize the memory map
+    if (v3_init_mem_map(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "Could not initialize shadow map\n");
+       return -1;
+    }
+
+    v3_init_mem_hooks(vm);
+
+    if (v3_init_shdw_impl(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "VM initialization error in shadow implementaion\n");
+       return -1;
+    }
+
+    if (v3_init_passthrough_paging(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "VM initialization error in passthrough paging\n");
+       return -1;
+    }
+
+    if (v3_init_nested_paging(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "VM initialization error in nested paging\n");
+       return -1;
+    }
+
+#ifdef V3_CONFIG_MEM_TRACK
+    v3_mem_track_init(vm);
+#endif
+
+    v3_init_time_vm(vm);
+
+    v3_init_vm_debugging(vm);
+
+
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_init_symbiotic_vm(vm);
+#endif
+
+    v3_init_dev_mgr(vm);
+
+
+    // init SVM/VMX
+    switch (v3_mach_type) {
+#ifdef V3_CONFIG_SVM
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           v3_init_svm_io_map(vm);
+           v3_init_svm_msr_map(vm);
+           v3_init_svm_exits(vm);
+           break;
+#endif
+#ifdef V3_CONFIG_VMX
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+       case V3_VMX_EPT_UG_CPU:
+           v3_init_vmx_io_map(vm);
+           v3_init_vmx_msr_map(vm);
+           v3_init_vmx_exits(vm);
+           break;
+#endif
+       default:
+           PrintError(vm, VCORE_NONE, "Invalid CPU Type 0x%x\n", v3_mach_type);
+           return -1;
+    }
+    
+    v3_register_hypercall(vm, GUEST_INFO_HCALL, info_hcall, NULL);
+
+    V3_Print(vm, VCORE_NONE, "GUEST_INFO_HCALL=%x\n", GUEST_INFO_HCALL);
+
+    return 0;
 }
 
 
-void PrintV3GPRs(struct guest_info * info) {
-  struct v3_gprs * regs = &(info->vm_regs);
-  int i = 0;
-  v3_reg_t * reg_ptr;
-  char * reg_names[] = { "RDI", "RSI", "RBP", "RSP", "RBX", "RDX", "RCX", "RAX", NULL};
+int v3_free_vm_internal(struct v3_vm_info * vm) {
+    extern v3_cpu_arch_t v3_mach_type;
+
+    v3_remove_hypercall(vm, GUEST_INFO_HCALL);
+
+
+#ifdef V3_CONFIG_HVM
+    v3_deinit_hvm_vm(vm);
+#endif
+
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_deinit_symbiotic_vm(vm);
+#endif
+
+    // init SVM/VMX
+    switch (v3_mach_type) {
+#ifdef V3_CONFIG_SVM
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           v3_deinit_svm_io_map(vm);
+           v3_deinit_svm_msr_map(vm);
+           break;
+#endif
+#ifdef V3_CONFIG_VMX
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+       case V3_VMX_EPT_UG_CPU:
+           v3_deinit_vmx_io_map(vm);
+           v3_deinit_vmx_msr_map(vm);
+           break;
+#endif
+       default:
+           PrintError(vm, VCORE_NONE, "Invalid CPU Type 0x%x\n", v3_mach_type);
+           return -1;
+    }
+
+    v3_deinit_dev_mgr(vm);
+
+    v3_deinit_time_vm(vm);
 
-  reg_ptr= (v3_reg_t *)regs;
+    v3_deinit_mem_hooks(vm);
 
-  PrintDebug("32 bit GPRs:\n");
+#ifdef V3_CONFIG_SWAPPING
+    v3_deinit_swapping_vm(vm);
+#endif
 
-  for (i = 0; reg_names[i] != NULL; i++) {
-    PrintDebug("\t%s=0x%x\n", reg_names[i], reg_ptr[i]);  
-  }
+    v3_delete_mem_map(vm);
+    v3_deinit_shdw_impl(vm);
+    v3_deinit_passthrough_paging(vm);
+    v3_deinit_nested_paging(vm);
+
+    v3_deinit_ext_manager(vm);
+    v3_deinit_intr_routers(vm);
+    v3_deinit_host_events(vm);
+
+    v3_deinit_barrier(vm);
+
+    v3_deinit_cpuid_map(vm);
+    v3_deinit_msr_map(vm);
+    v3_deinit_io_map(vm);
+    v3_deinit_hypercall_map(vm);
+
+    v3_deinit_exit_hooks(vm);
+
+#ifdef V3_CONFIG_TELEMETRY
+    v3_deinit_telemetry(vm);
+#endif
+
+
+    v3_deinit_events(vm);
+
+#ifdef V3_CONFIG_MEM_TRACK
+    v3_mem_track_deinit(vm);
+#endif
+
+    v3_fw_cfg_deinit(vm);
+
+
+    return 0;
+}
+
+
+int v3_init_core(struct guest_info * core) {
+    extern v3_cpu_arch_t v3_mach_type;
+    struct v3_vm_info * vm = core->vm_info;
+
+
+
+    /*
+     * Initialize the subsystem data strutures
+     */
+#ifdef V3_CONFIG_TELEMETRY
+    v3_init_core_telemetry(core);
+#endif
+
+    if (core->shdw_pg_mode == SHADOW_PAGING) {
+        v3_init_passthrough_paging_core(core);
+       v3_init_shdw_pg_state(core);
+    } else {
+        //done later due to SVM/VMX differences 
+        //v3_init_nested_paging_core(core);
+    }
+
+    v3_init_time_core(core);
+    v3_init_intr_controllers(core);
+    v3_init_exception_state(core);
+
+    v3_init_decoder(core);
+
+
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_init_symbiotic_core(core);
+#endif
+
+    // init SVM/VMX
+
+
+    switch (v3_mach_type) {
+#ifdef V3_CONFIG_SVM
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           if (v3_init_svm_vmcb(core, vm->vm_class) == -1) {
+               PrintError(vm, core, "Error in SVM initialization\n");
+               return -1;
+           }
+           break;
+#endif
+#ifdef V3_CONFIG_VMX
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+       case V3_VMX_EPT_UG_CPU:
+           if (v3_init_vmx_vmcs(core, vm->vm_class) == -1) {
+               PrintError(vm, core, "Error in VMX initialization\n");
+               return -1;
+           }
+           break;
+#endif
+       default:
+            PrintError(vm, core, "Invalid CPU Type 0x%x\n", v3_mach_type);
+           return -1;
+    }
+    
+    v3_init_exit_hooks_core(core);
+
+
+    return 0;
+}
+
+
+
+int v3_free_core(struct guest_info * core) {
+    extern v3_cpu_arch_t v3_mach_type;
+
+    
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_deinit_symbiotic_core(core);
+#endif
+
+#ifdef V3_CONFIG_HVM
+    v3_deinit_hvm_core(core);
+#endif
+
+    v3_deinit_decoder(core);
+
+    v3_deinit_intr_controllers(core);
+    v3_deinit_time_core(core);
+
+    if (core->shdw_pg_mode == SHADOW_PAGING) {
+       v3_deinit_shdw_pg_state(core);
+        v3_deinit_passthrough_paging_core(core);
+   } else {
+        v3_deinit_nested_paging_core(core);
+    }
+
+    v3_free_passthrough_pts(core);
+
+#ifdef V3_CONFIG_TELEMETRY
+    v3_deinit_core_telemetry(core);
+#endif
+
+
+    switch (v3_mach_type) {
+#ifdef V3_CONFIG_SVM
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           if (v3_deinit_svm_vmcb(core) == -1) {
+               PrintError(VM_NONE,VCORE_NONE, "Error in SVM deinitialization\n");
+               return -1;
+           }
+           break;
+#endif
+#ifdef V3_CONFIG_VMX
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+       case V3_VMX_EPT_UG_CPU:
+           if (v3_deinit_vmx_vmcs(core) == -1) {
+               PrintError(VM_NONE, VCORE_NONE, "Error in VMX initialization\n");
+               return -1;
+           }
+           break;
+#endif
+       default:
+           PrintError(core->vm_info, core, "Invalid CPU Type 0x%x\n", v3_mach_type);
+           return -1;
+    }
+
+    return 0;
 }
+
+
+