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.


free configuration data during deinitialization
[palacios.git] / palacios / src / palacios / vm_guest.c
index 17b1be8..36ec7d2 100644 (file)
@@ -28,6 +28,9 @@
 #include <palacios/vm_guest_mem.h>
 #include <palacios/vmm_lowlevel.h>
 #include <palacios/vmm_sprintf.h>
+#include <palacios/vmm_muxer.h>
+#include <palacios/vmm_xed.h>
+#include <palacios/vmm_direct_paging.h>
 
 
 
@@ -198,7 +201,7 @@ int v3_translate_segment(struct guest_info * info, uint16_t selector, struct v3_
        return -1;
     }
 
-    if (guest_va_to_host_va(info, gdt->base, &gdt_addr) == -1) {
+    if (v3_gva_to_hva(info, gdt->base, &gdt_addr) == -1) {
        PrintError("Unable to translate GDT address\n");
        return -1;
     }
@@ -257,6 +260,55 @@ void v3_print_ctrl_regs(struct guest_info * info) {
 }
 
 
+static int safe_gva_to_hva(struct guest_info * info, addr_t linear_addr, addr_t * host_addr) {
+    /* select the proper translation based on guest mode */
+    if (info->mem_mode == PHYSICAL_MEM) {
+       if (v3_gpa_to_hva(info, linear_addr, host_addr) == -1) return -1;
+    } else if (info->mem_mode == VIRTUAL_MEM) {
+       if (v3_gva_to_hva(info, linear_addr, host_addr) == -1) return -1;
+    }
+    return 0;
+}
+
+static int v3_print_disassembly(struct guest_info * info) {
+    int passed_rip = 0;
+    addr_t rip, rip_linear, rip_host;
+
+    /* we don't know where the instructions preceding RIP start, so we just take
+     * a guess and hope the instruction stream synced up with our disassembly
+     * some time before RIP; if it has not we correct RIP at that point
+     */
+
+    /* start disassembly 64 bytes before current RIP, continue 32 bytes after */
+    rip = (addr_t) info->rip - 64;
+    while ((int) (rip - info->rip) < 32) {
+       /* always print RIP, even if the instructions before were bad */
+       if (!passed_rip && rip >= info->rip) {
+           if (rip != info->rip) {
+               V3_Print("***** bad disassembly up to this point *****\n");
+               rip = info->rip;
+           }
+           passed_rip = 1;
+       }
+
+       /* look up host virtual address for this instruction */
+       rip_linear = get_addr_linear(info, rip, &(info->segments.cs));
+       if (safe_gva_to_hva(info, rip_linear, &rip_host) < 0) {
+           rip++;
+           continue;
+       }
+
+       /* print disassembled instrcution (updates rip) */
+       if (v3_disasm(info, (void *) rip_host, &rip, rip == info->rip) < 0) {
+           rip++;
+           continue;
+       }
+    }
+
+    return 0;
+}
+
+
 void v3_print_guest_state(struct guest_info * info) {
     addr_t linear_addr = 0; 
 
@@ -278,7 +330,11 @@ void v3_print_guest_state(struct guest_info * info) {
     }
     v3_print_GPRs(info);
 
+    v3_print_mem_map(info->vm_info);
+
     v3_print_stack(info);
+
+    v3_print_disassembly(info);
 }
 
 
@@ -294,12 +350,12 @@ void v3_print_stack(struct guest_info * info) {
     V3_Print("Stack  at %p:\n", (void *)linear_addr);
    
     if (info->mem_mode == PHYSICAL_MEM) {
-       if (guest_pa_to_host_va(info, linear_addr, &host_addr) == -1) {
+       if (v3_gpa_to_hva(info, linear_addr, &host_addr) == -1) {
            PrintError("Could not translate Stack address\n");
            return;
        }
     } else if (info->mem_mode == VIRTUAL_MEM) {
-       if (guest_va_to_host_va(info, linear_addr, &host_addr) == -1) {
+       if (v3_gva_to_hva(info, linear_addr, &host_addr) == -1) {
            PrintError("Could not translate Virtual Stack address\n");
            return;
        }
@@ -329,7 +385,7 @@ void v3_print_GPRs(struct guest_info * info) {
     v3_reg_t * reg_ptr;
     char * reg_names[] = { "RDI", "RSI", "RBP", "RSP", "RBX", "RDX", "RCX", "RAX", NULL};
 
-    reg_ptr= (v3_reg_t *)regs;
+    reg_ptr = (v3_reg_t *)regs;
 
     V3_Print("32 bit GPRs:\n");
 
@@ -362,24 +418,27 @@ void v3_print_GPRs(struct guest_info * info) {
 #include <palacios/vmcs.h>
 #include <palacios/vmcb.h>
 static int info_hcall(struct guest_info * core, uint_t hcall_id, void * priv_data) {
-    v3_cpu_arch_t cpu_type = v3_get_cpu_type(v3_get_cpu_id());
-    
+    v3_cpu_arch_t cpu_type = v3_get_cpu_type(V3_Get_CPU());
+    int cpu_valid = 0;
+
+    V3_Print("************** Guest State ************\n");
     v3_print_guest_state(core);
     
-
     // init SVM/VMX
 #ifdef CONFIG_SVM
     if ((cpu_type == V3_SVM_CPU) || (cpu_type == V3_SVM_REV3_CPU)) {
+       cpu_valid = 1;
        PrintDebugVMCB((vmcb_t *)(core->vmm_data));
     }
 #endif
 #ifdef CONFIG_VMX
-    else if ((cpu_type == V3_VMX_CPU) || (cpu_type == V3_VMX_EPT_CPU)) {
+    if ((cpu_type == V3_VMX_CPU) || (cpu_type == V3_VMX_EPT_CPU)) {
+       cpu_valid = 1;
        v3_print_vmcs();
     }
 #endif
-    else {
-       PrintError("Invalid CPU Type\n");
+    if (!cpu_valid) {
+       PrintError("Invalid CPU Type 0x%x\n", cpu_type);
        return -1;
     }
     
@@ -402,7 +461,11 @@ static int info_hcall(struct guest_info * core, uint_t hcall_id, void * priv_dat
 
 
 int v3_init_vm(struct v3_vm_info * vm) {
-    v3_cpu_arch_t cpu_type = v3_get_cpu_type(v3_get_cpu_id());
+    v3_cpu_arch_t cpu_type = v3_get_cpu_type(V3_Get_CPU());
+
+    if (v3_get_foreground_vm() == NULL) {
+       v3_set_foreground_vm(vm);
+    }
 
 #ifdef CONFIG_TELEMETRY
     v3_init_telemetry(vm);
@@ -421,6 +484,7 @@ int v3_init_vm(struct v3_vm_info * vm) {
        return -1;
     }
 
+    v3_init_mem_hooks(vm);
 
     if (v3_init_shdw_impl(vm) == -1) {
        PrintError("VM initialization error in shadow implementaion\n");
@@ -428,6 +492,8 @@ int v3_init_vm(struct v3_vm_info * vm) {
     }
 
 
+    v3_init_time_vm(vm);
+
 
 #ifdef CONFIG_SYMBIOTIC
     v3_init_symbiotic_vm(vm);
@@ -437,35 +503,87 @@ int v3_init_vm(struct v3_vm_info * vm) {
 
 
     // init SVM/VMX
+    switch (cpu_type) {
 #ifdef CONFIG_SVM
-    if ((cpu_type == V3_SVM_CPU) || (cpu_type == V3_SVM_REV3_CPU)) {
-       v3_init_svm_io_map(vm);
-       v3_init_svm_msr_map(vm);
-    }
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           v3_init_svm_io_map(vm);
+           v3_init_svm_msr_map(vm);
+           break;
 #endif
 #ifdef CONFIG_VMX
-    else if ((cpu_type == V3_VMX_CPU) || (cpu_type == V3_VMX_EPT_CPU)) {
-       v3_init_vmx_io_map(vm);
-       v3_init_vmx_msr_map(vm);
-    }
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+           v3_init_vmx_io_map(vm);
+           v3_init_vmx_msr_map(vm);
+           break;
 #endif
-    else {
-       PrintError("Invalid CPU Type\n");
-       return -1;
+       default:
+           PrintError("Invalid CPU Type 0x%x\n", cpu_type);
+           return -1;
     }
     
+    v3_register_hypercall(vm, GUEST_INFO_HCALL, info_hcall, NULL);
 
+    V3_Print("GUEST_INFO_HCALL=%x\n", GUEST_INFO_HCALL);
 
-    v3_register_hypercall(vm, GUEST_INFO_HCALL, info_hcall, NULL);
+    return 0;
+}
 
 
-    V3_Print("GUEST_INFO_HCALL=%x\n", GUEST_INFO_HCALL);
+int v3_free_vm_internal(struct v3_vm_info * vm) {
+    v3_cpu_arch_t cpu_type = v3_get_cpu_type(V3_Get_CPU());
+
+    v3_remove_hypercall(vm, GUEST_INFO_HCALL);
+
+
+    // init SVM/VMX
+    switch (cpu_type) {
+#ifdef 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 CONFIG_VMX
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+           v3_deinit_vmx_io_map(vm);
+           v3_deinit_vmx_msr_map(vm);
+           break;
+#endif
+       default:
+           PrintError("Invalid CPU Type 0x%x\n", cpu_type);
+           return -1;
+    }
+
+    v3_deinit_dev_mgr(vm);
+
+    v3_deinit_time_vm(vm);
+
+    v3_deinit_shdw_impl(vm);
+    v3_deinit_mem_hooks(vm);
+    v3_delete_mem_map(vm);
+
+    v3_deinit_intr_routers(vm);
+    v3_deinit_host_events(vm);
+
+    v3_deinit_cpuid_map(vm);
+    v3_deinit_msr_map(vm);
+    v3_deinit_io_map(vm);
+    v3_deinit_hypercall_map(vm);
+
+#ifdef CONFIG_TELEMETRY
+    //v3_deinit_telemetry(vm);
+#endif
 
     return 0;
 }
 
+
 int v3_init_core(struct guest_info * core) {
-    v3_cpu_arch_t cpu_type = v3_get_cpu_type(v3_get_cpu_id());
+    v3_cpu_arch_t cpu_type = v3_get_cpu_type(V3_Get_CPU());
     struct v3_vm_info * vm = core->vm_info;
 
     /*
@@ -479,7 +597,7 @@ int v3_init_core(struct guest_info * core) {
        v3_init_shdw_pg_state(core);
     }
 
-    v3_init_time(core);
+    v3_init_time_core(core);
     v3_init_intr_controllers(core);
     v3_init_exception_state(core);
 
@@ -491,26 +609,82 @@ int v3_init_core(struct guest_info * core) {
 #endif
 
     // init SVM/VMX
+
+
+    switch (cpu_type) {
 #ifdef CONFIG_SVM
-    if ((cpu_type == V3_SVM_CPU) || (cpu_type == V3_SVM_REV3_CPU)) {
-       if (v3_init_svm_vmcb(core, vm->vm_class) == -1) {
-           PrintError("Error in SVM initialization\n");
-           return -1;
-       }
-    }
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           if (v3_init_svm_vmcb(core, vm->vm_class) == -1) {
+               PrintError("Error in SVM initialization\n");
+               return -1;
+           }
+           break;
 #endif
 #ifdef CONFIG_VMX
-    else if ((cpu_type == V3_VMX_CPU) || (cpu_type == V3_VMX_EPT_CPU)) {
-       if (v3_init_vmx_vmcs(core, vm->vm_class) == -1) {
-           PrintError("Error in VMX initialization\n");
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+           if (v3_init_vmx_vmcs(core, vm->vm_class) == -1) {
+               PrintError("Error in VMX initialization\n");
+               return -1;
+           }
+           break;
+#endif
+       default:
+           PrintError("Invalid CPU Type 0x%x\n", cpu_type);
            return -1;
-       }
     }
+
+    return 0;
+}
+
+
+
+int v3_free_core(struct guest_info * core) {
+    v3_cpu_arch_t cpu_type = v3_get_cpu_type(V3_Get_CPU());
+
+    
+#ifdef CONFIG_SYMBIOTIC
+    //v3_deinit_symbiotic_core(core);
 #endif
-    else {
-       PrintError("Invalid CPU Type\n");
-       return -1;
+
+    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_free_passthrough_pts(core);
+
+    switch (cpu_type) {
+#ifdef CONFIG_SVM
+       case V3_SVM_CPU:
+       case V3_SVM_REV3_CPU:
+           if (v3_deinit_svm_vmcb(core) == -1) {
+               PrintError("Error in SVM initialization\n");
+               return -1;
+           }
+           break;
+#endif
+#ifdef CONFIG_VMX
+       case V3_VMX_CPU:
+       case V3_VMX_EPT_CPU:
+           if (v3_deinit_vmx_vmcs(core) == -1) {
+               PrintError("Error in VMX initialization\n");
+               return -1;
+           }
+           break;
+#endif
+       default:
+           PrintError("Invalid CPU Type 0x%x\n", cpu_type);
+           return -1;
     }
 
     return 0;
 }
+
+
+