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 94bbc7b..d325e6b 100644 (file)
 #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 cr4_32 * cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
     struct v3_segment * cs = &(info->segments.cs);
-    vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
+    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 *)&(guest_state->efer);
+       efer = (struct efer_64 *)&(info->ctrl_regs.efer);
+        cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
     } else {
-       PrintError("Invalid Paging Mode...\n");
-       V3_ASSERT(0);
+        PrintError(info->vm_info, info, "Invalid Paging Mode...\n");
+       V3_ASSERT(info->vm_info, info, 0);
        return -1;
     }
 
@@ -70,17 +78,17 @@ uint_t v3_get_addr_width(struct guest_info * info) {
     struct cr4_32 * cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
     struct efer_64 * efer;
     struct v3_segment * cs = &(info->segments.cs);
-    vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
+
 
     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 *)&(guest_state->efer);
+       efer = (struct efer_64 *)&(info->ctrl_regs.efer);
     } else {
-       PrintError("Invalid Paging Mode...\n");
-       V3_ASSERT(0);
+        PrintError(info->vm_info, info, "Invalid Paging Mode...\n");
+       V3_ASSERT(info->vm_info, info, 0);
        return -1;
     }
 
@@ -133,8 +141,8 @@ v3_mem_mode_t v3_get_vm_mem_mode(struct guest_info * info) {
     } 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);
+       PrintError(info->vm_info, info, "Invalid Paging Mode...\n");
+       V3_ASSERT(info->vm_info, info, 0);
        return -1;
     }
 
@@ -160,158 +168,358 @@ const uchar_t * v3_mem_mode_to_str(v3_mem_mode_t mode) {
 }
 
 
-void v3_print_segments(struct guest_info * info) {
-    struct v3_segments * segs = &(info->segments);
-    int i = 0;
-    struct v3_segment * seg_ptr;
 
-    seg_ptr=(struct v3_segment *)segs;
-  
-    char *seg_names[] = {"CS", "DS" , "ES", "FS", "GS", "SS" , "LDTR", "GDTR", "IDTR", "TR", NULL};
-    PrintDebug("Segments\n");
 
-    for (i = 0; seg_names[i] != NULL; i++) {
 
-       PrintDebug("\t%s: Sel=%x, base=%p, limit=%x (long_mode=%d, db=%d)\n", seg_names[i], seg_ptr[i].selector, 
-                  (void *)(addr_t)seg_ptr[i].base, seg_ptr[i].limit,
-                  seg_ptr[i].long_mode, seg_ptr[i].db);
 
+
+#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;
 }
 
-//
-// We don't handle those fancy 64 bit system segments...
-//
-int v3_translate_segment(struct guest_info * info, uint16_t selector, struct v3_segment * seg) {
-    struct v3_segment * gdt = &(info->segments.gdtr);
-    addr_t gdt_addr = 0;
-    uint16_t seg_offset = (selector & ~0x7);
-    addr_t seg_addr = 0;
-    struct gen_segment * gen_seg = NULL;
-    struct seg_selector sel;
 
-    memset(seg, 0, sizeof(struct v3_segment));
+#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
+
+    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);
+
+    v3_init_intr_routers(vm);
+    v3_init_ext_manager(vm);
 
-    sel.value = selector;
+    v3_init_barrier(vm);
 
-    if (sel.ti == 1) {
-       PrintError("LDT translations not supported\n");
+    // Initialize the memory map
+    if (v3_init_mem_map(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "Could not initialize shadow map\n");
        return -1;
     }
 
-    if (guest_va_to_host_va(info, gdt->base, &gdt_addr) == -1) {
-       PrintError("Unable to translate GDT address\n");
+    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;
     }
 
-    seg_addr = gdt_addr + seg_offset;
-    gen_seg = (struct gen_segment *)seg_addr;
+    if (v3_init_passthrough_paging(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "VM initialization error in passthrough paging\n");
+       return -1;
+    }
 
-    //translate
-    seg->selector = selector;
+    if (v3_init_nested_paging(vm) == -1) {
+        PrintError(vm, VCORE_NONE, "VM initialization error in nested paging\n");
+       return -1;
+    }
 
-    seg->limit = gen_seg->limit_hi;
-    seg->limit <<= 16;
-    seg->limit += gen_seg->limit_lo;
+#ifdef V3_CONFIG_MEM_TRACK
+    v3_mem_track_init(vm);
+#endif
 
-    seg->base = gen_seg->base_hi;
-    seg->base <<= 24;
-    seg->base += gen_seg->base_lo;
+    v3_init_time_vm(vm);
 
-    if (gen_seg->granularity == 1) {
-       seg->limit <<= 12;
-       seg->limit |= 0xfff;
-    }
+    v3_init_vm_debugging(vm);
 
-    seg->type = gen_seg->type;
-    seg->system = gen_seg->system;
-    seg->dpl = gen_seg->dpl;
-    seg->present = gen_seg->present;
-    seg->avail = gen_seg->avail;
-    seg->long_mode = gen_seg->long_mode;
-    seg->db = gen_seg->db;
-    seg->granularity = gen_seg->granularity;
+
+#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;
 }
 
 
+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);
 
-void v3_print_ctrl_regs(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};
-    vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(info->vmm_data);
 
-    reg_ptr = (v3_reg_t *)regs;
+#ifdef V3_CONFIG_HVM
+    v3_deinit_hvm_vm(vm);
+#endif
 
-    PrintDebug("32 bit Ctrl Regs:\n");
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_deinit_symbiotic_vm(vm);
+#endif
 
-    for (i = 0; reg_names[i] != NULL; i++) {
-       PrintDebug("\t%s=0x%p\n", reg_names[i], (void *)(addr_t)reg_ptr[i]);  
+    // 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;
     }
 
-    PrintDebug("\tEFER=0x%p\n", (void*)(addr_t)(guest_state->efer));
+    v3_deinit_dev_mgr(vm);
+
+    v3_deinit_time_vm(vm);
+
+    v3_deinit_mem_hooks(vm);
 
+#ifdef V3_CONFIG_SWAPPING
+    v3_deinit_swapping_vm(vm);
+#endif
+
+    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;
 }
 
 
-void v3_print_guest_state(struct guest_info * info) {
-    addr_t linear_addr = 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;
 
-    PrintDebug("RIP: %p\n", (void *)(addr_t)(info->rip));
-    linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
-    PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
 
-    v3_print_segments(info);
-    v3_print_ctrl_regs(info);
 
-    if (info->shdw_pg_mode == SHADOW_PAGING) {
-       PrintDebug("Shadow Paging Guest Registers:\n");
-       PrintDebug("\tGuest CR0=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr0));
-       PrintDebug("\tGuest CR3=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr3));
-       PrintDebug("\tGuest EFER=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_efer.value));
-       // CR4
+    /*
+     * 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_print_GPRs(info);
-}
 
+    v3_init_time_core(core);
+    v3_init_intr_controllers(core);
+    v3_init_exception_state(core);
+
+    v3_init_decoder(core);
 
-#ifdef __V3_32BIT__
 
-void v3_print_GPRs(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};
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_init_symbiotic_core(core);
+#endif
 
-    reg_ptr= (v3_reg_t *)regs;
+    // init SVM/VMX
 
-    PrintDebug("32 bit GPRs:\n");
 
-    for (i = 0; reg_names[i] != NULL; i++) {
-       PrintDebug("\t%s=0x%p\n", reg_names[i], (void *)(addr_t)reg_ptr[i]);  
+    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;
 }
 
-#elif __V3_64BIT__
 
-void v3_print_GPRs(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", \
-                          "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15", NULL};
 
-    reg_ptr= (v3_reg_t *)regs;
+int v3_free_core(struct guest_info * core) {
+    extern v3_cpu_arch_t v3_mach_type;
 
-    PrintDebug("64 bit GPRs:\n");
+    
+#ifdef V3_CONFIG_SYMBIOTIC
+    v3_deinit_symbiotic_core(core);
+#endif
 
-    for (i = 0; reg_names[i] != NULL; i++) {
-       PrintDebug("\t%s=0x%p\n", reg_names[i], (void *)(addr_t)reg_ptr[i]);  
+#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;
+}
+
+
+