X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmx.c;h=5a48935ce007ce40884a02f26626d9c7042be43b;hb=f88a692d094459f0326c5c891df5ea81b5476ba6;hp=03dab64576ef5547dd300530faf3bfedd5580b57;hpb=a489c2ba0f26f4be1fa98d4af2c2bfa113c28dde;p=palacios.git diff --git a/palacios/src/palacios/vmx.c b/palacios/src/palacios/vmx.c index 03dab64..5a48935 100644 --- a/palacios/src/palacios/vmx.c +++ b/palacios/src/palacios/vmx.c @@ -31,6 +31,12 @@ #include #include #include +#include +#include + +#ifdef V3_CONFIG_CHECKPOINT +#include +#endif #include #include @@ -557,6 +563,55 @@ int v3_deinit_vmx_vmcs(struct guest_info * core) { } + +#ifdef V3_CONFIG_CHECKPOINT +/* + * JRL: This is broken + */ +int v3_vmx_save_core(struct guest_info * core, void * ctx){ + uint64_t vmcs_ptr = vmcs_store(); + + v3_chkpt_save(ctx, "vmcs_data", PAGE_SIZE, (void *)vmcs_ptr); + + return 0; +} + +int v3_vmx_load_core(struct guest_info * core, void * ctx){ + struct vmx_data * vmx_info = (struct vmx_data *)(core->vmm_data); + struct cr0_32 * shadow_cr0; + char vmcs[PAGE_SIZE_4KB]; + + v3_chkpt_load(ctx, "vmcs_data", PAGE_SIZE_4KB, vmcs); + + vmcs_clear(vmx_info->vmcs_ptr_phys); + vmcs_load((addr_t)vmcs); + + v3_vmx_save_vmcs(core); + + shadow_cr0 = (struct cr0_32 *)&(core->ctrl_regs.cr0); + + + /* Get the CPU mode to set the guest_ia32e entry ctrl */ + + if (core->shdw_pg_mode == SHADOW_PAGING) { + if (v3_get_vm_mem_mode(core) == VIRTUAL_MEM) { + if (v3_activate_shadow_pt(core) == -1) { + PrintError("Failed to activate shadow page tables\n"); + return -1; + } + } else { + if (v3_activate_passthrough_pt(core) == -1) { + PrintError("Failed to activate passthrough page tables\n"); + return -1; + } + } + } + + return 0; +} +#endif + + static int update_irq_exit_state(struct guest_info * info) { struct vmx_exit_idt_vec_info idt_vec_info; @@ -758,7 +813,9 @@ int v3_vmx_enter(struct guest_info * info) { v3_update_timers(info); if (vmcs_store() != vmx_info->vmcs_ptr_phys) { + vmcs_clear(vmx_info->vmcs_ptr_phys); vmcs_load(vmx_info->vmcs_ptr_phys); + vmx_info->state = VMX_UNLAUNCHED; } v3_vmx_restore_vmcs(info); @@ -781,35 +838,10 @@ int v3_vmx_enter(struct guest_info * info) { // Perform last-minute time bookkeeping prior to entering the VM v3_time_enter_vm(info); - tsc_offset_high = (uint32_t)((v3_tsc_host_offset(&info->time_state) >> 32) & 0xffffffff); - tsc_offset_low = (uint32_t)(v3_tsc_host_offset(&info->time_state) & 0xffffffff); - check_vmcs_write(VMCS_TSC_OFFSET_HIGH, tsc_offset_high); - check_vmcs_write(VMCS_TSC_OFFSET, tsc_offset_low); - - - /* determine if we need to move to a different physical core */ - if(info->core_move_state == CORE_MOVE_PENDING) { - vmcs_clear(vmx_info->vmcs_ptr_phys); - - v3_enable_ints(); - - if(V3_MOVE_THREAD_TO_CPU(info->target_pcpu_id, info->core_thread) != 0){ - PrintError("Failed to move vcore %d to CPU %d\n", info->vcpu_id, info->target_pcpu_id); - } else { - info->pcpu_id = info->target_pcpu_id; - PrintDebug("Core move done, vcore %d is running on CPU %d now\n", info->vcpu_id, V3_Get_CPU()); - } - - /* disable global interrupts, - * NOTE now it is being running on a different CPU - */ - v3_disable_ints(); - - vmcs_load(vmx_info->vmcs_ptr_phys); - vmx_info->state = VMX_UNLAUNCHED; - info->core_move_state= CORE_MOVE_DONE; - } - + // tsc_offset_high = (uint32_t)((v3_tsc_host_offset(&info->time_state) >> 32) & 0xffffffff); + // tsc_offset_low = (uint32_t)(v3_tsc_host_offset(&info->time_state) & 0xffffffff); + // check_vmcs_write(VMCS_TSC_OFFSET_HIGH, tsc_offset_high); + // check_vmcs_write(VMCS_TSC_OFFSET, tsc_offset_low); if (v3_update_vmcs_host_state(info)) { v3_enable_ints(); @@ -820,6 +852,7 @@ int v3_vmx_enter(struct guest_info * info) { if (vmx_info->state == VMX_UNLAUNCHED) { vmx_info->state = VMX_LAUNCHED; + info->vm_info->run_state = VM_RUNNING; ret = v3_vmx_launch(&(info->vm_regs), info, &(info->ctrl_regs)); } else { @@ -896,7 +929,7 @@ int v3_vmx_enter(struct guest_info * info) { v3_yield_cond(info); if (v3_handle_vmx_exit(info, &exit_info) == -1) { - PrintError("Error in VMX exit handler\n"); + PrintError("Error in VMX exit handler (Exit reason=%x)\n", exit_info.exit_reason); return -1; } @@ -921,6 +954,9 @@ int v3_start_vmx_guest(struct guest_info * info) { } PrintDebug("VMX core %u initialized\n", info->vcpu_id); + + // We'll be paranoid about race conditions here + v3_wait_at_barrier(info); } @@ -941,11 +977,40 @@ int v3_start_vmx_guest(struct guest_info * info) { } if (v3_vmx_enter(info) == -1) { + + addr_t host_addr; + addr_t linear_addr = 0; + + info->vm_info->run_state = VM_ERROR; + + V3_Print("VMX core %u: VMX ERROR!!\n", info->vcpu_id); + + v3_print_guest_state(info); + + V3_Print("VMX core %u\n", info->vcpu_id); + + linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs)); + + if (info->mem_mode == PHYSICAL_MEM) { + v3_gpa_to_hva(info, linear_addr, &host_addr); + } else if (info->mem_mode == VIRTUAL_MEM) { + v3_gva_to_hva(info, linear_addr, &host_addr); + } + + V3_Print("VMX core %u: Host Address of rip = 0x%p\n", info->vcpu_id, (void *)host_addr); + + V3_Print("VMX core %u: Instr (15 bytes) at %p:\n", info->vcpu_id, (void *)host_addr); + v3_dump_mem((uint8_t *)host_addr, 15); + + v3_print_stack(info); + + v3_print_vmcs(); print_exit_log(info); return -1; } + v3_wait_at_barrier(info); if (info->vm_info->run_state == VM_STOPPED) {