#include <palacios/vmx.h>
#include <palacios/vmcs.h>
#include <palacios/vmm.h>
+#include <palacios/vmx_lowlevel.h>
//
#include <palacios/vmm_util.h>
#include <palacios/vmm_string.h>
+#include <palacios/vmm_ctrl_regs.h>
#define ROMBIOS_DEBUG_PORT 0x403
-static struct VM theVM;
static uint_t GetLinearIP(struct VM * vm) {
if (vm->state == VM_VMXASSIST_V8086_BIOS || vm->state == VM_VMXASSIST_V8086) {
#define MAX_CODE 512
#define INSTR_OFFSET_START 17
#define NOP_SEQ_LEN 10
-#define INSTR_OFFSET_END (INSTR_OFFSET_START+NOP_SEQ_LEN-1)
+#define INSTR_OFFSET_END (INSTR_OFFSET_START + NOP_SEQ_LEN - 1)
#define TEMPLATE_CODE_LEN 35
-uint_t oldesp=0;
-uint_t myregs=0;
+uint_t oldesp = 0;
+uint_t myregs = 0;
+static struct vmcs_data* vmxon_ptr;
-extern uint_t VMCS_CLEAR();
-extern uint_t VMCS_LOAD();
-extern uint_t VMCS_STORE();
extern uint_t VMCS_LAUNCH();
-extern uint_t VMCS_RESUME();
extern uint_t Init_VMCS_HostState();
extern uint_t Init_VMCS_GuestState();
}
-static void V8086ModeSegmentRegisterFixup(struct VM *vm)
+static void setup_v8086_mode_for_boot(struct guest_info* vm_info)
{
- vm->vmcs.guestStateArea.cs.baseAddr = vm->vmcs.guestStateArea.cs.selector << 4;
- vm->vmcs.guestStateArea.es.baseAddr = vm->vmcs.guestStateArea.es.selector << 4;
- vm->vmcs.guestStateArea.ss.baseAddr = vm->vmcs.guestStateArea.ss.selector << 4;
- vm->vmcs.guestStateArea.ds.baseAddr = vm->vmcs.guestStateArea.ds.selector << 4;
- vm->vmcs.guestStateArea.fs.baseAddr = vm->vmcs.guestStateArea.fs.selector << 4;
- vm->vmcs.guestStateArea.gs.baseAddr = vm->vmcs.guestStateArea.gs.selector << 4;
-}
-
-static void SetupV8086ModeForBoot(struct VM *vm)
-{
- vm->state = VM_VMXASSIST_V8086_BIOS;
-
- // Put guest into V8086 mode on return
- vm->vmcs.guestStateArea.rflags |= EFLAGS_VM | EFLAGS_IOPL_HI | EFLAGS_IOPL_LO ;
-
- // We will start at f000:fff0 on return
- //
- // We want this to look as much as possible as a processor
- // reset
- vm->vmcs.guestStateArea.rip = 0xfff0; // note, 16 bit rip
- vm->vmcs.guestStateArea.cs.selector = 0xf000;
- vm->vmcs.guestStateArea.cs.limit = 0xffff;
- vm->vmcs.guestStateArea.cs.access.as_dword = 0xf3;
-
- vm->vmcs.guestStateArea.ss.selector = 0x0000;
- vm->vmcs.guestStateArea.ss.limit = 0xffff;
- vm->vmcs.guestStateArea.ss.access.as_dword = 0xf3;
-
- vm->vmcs.guestStateArea.ds.selector = 0x0000;
- vm->vmcs.guestStateArea.ds.limit = 0xffff;
- vm->vmcs.guestStateArea.ds.access.as_dword = 0xf3;
-
- vm->vmcs.guestStateArea.es.selector = 0x0000;
- vm->vmcs.guestStateArea.es.limit = 0xffff;
- vm->vmcs.guestStateArea.es.access.as_dword = 0xf3;
-
- vm->vmcs.guestStateArea.fs.selector = 0x0000;
- vm->vmcs.guestStateArea.fs.limit = 0xffff;
- vm->vmcs.guestStateArea.fs.access.as_dword = 0xf3;
-
- vm->vmcs.guestStateArea.gs.selector = 0x0000;
- vm->vmcs.guestStateArea.gs.limit = 0xffff;
- vm->vmcs.guestStateArea.gs.access.as_dword = 0xf3;
-
- V8086ModeSegmentRegisterFixup(vm);
-
- PrintTrace_VMCSData(&(vm->vmcs));
+ ((struct vmx_data*)vm_info->vmm_data)->state = VMXASSIST_V8086_BIOS;
+ ((struct rflags)info->ctrl_regs.rflags).vm = 1;
+ ((struct rflags)info->ctrl_regs.rflags).iopl = 3;
+
+
+ vm_info->rip = 0xfff0;
+
+ vm_info->segments.cs.selector = 0xf000;
+ vm_info->segments.cs.base = 0xf000<<4;
+ vm_info->segments.cs.limit = 0xffff;
+ vm_info->segments.cs.type = 3;
+ vm_info->segments.cs.system = 1;
+ vm_info->segments.cs.dpl = 3;
+ vm_info->segments.cs.present = 1;
+ vm_info->segments.cs.granularity = 0;
+
+ vm_info->segments.ss.selector = 0x0000;
+ vm_info->segments.ss.base = 0x0000<<4;
+ vm_info->segments.ss.limit = 0xffff;
+ vm_info->segments.ss.type = 3;
+ vm_info->segments.ss.system = 1;
+ vm_info->segments.ss.dpl = 3;
+ vm_info->segments.ss.present = 1;
+ vm_info->segments.ss.granularity = 0;
+
+ vm_info->segments.es.selector = 0x0000;
+ vm_info->segments.es.base = 0x0000<<4;
+ vm_info->segments.es.limit = 0xffff;
+ vm_info->segments.es.type = 3;
+ vm_info->segments.es.system = 1;
+ vm_info->segments.es.dpl = 3;
+ vm_info->segments.es.present = 1;
+ vm_info->segments.es.granularity = 0;
+
+ vm_info->segments.fs.selector = 0x0000;
+ vm_info->segments.fs.base = 0x0000<<4;
+ vm_info->segments.fs.limit = 0xffff;
+ vm_info->segments.fs.type = 3;
+ vm_info->segments.fs.system = 1;
+ vm_info->segments.fs.dpl = 3;
+ vm_info->segments.fs.present = 1;
+ vm_info->segments.fs.granularity = 0;
+
+ vm_info->segments.gs.selector = 0x0000;
+ vm_info->segments.gs.base = 0x0000<<4;
+ vm_info->segments.gs.limit = 0xffff;
+ vm_info->segments.gs.type = 3;
+ vm_info->segments.gs.system = 1;
+ vm_info->segments.gs.dpl = 3;
+ vm_info->segments.gs.present = 1;
+ vm_info->segments.gs.granularity = 0;
}
-
-
-
static void ConfigureExits(struct VM *vm)
{
PrintTrace("Guest ESP: 0x%x (%u)\n", guest_esp, guest_esp);
- exit_eip=(uint_t)RunVMM;
+ exit_eip = (uint_t)RunVMM;
PrintTrace("Clear\n");
VMCS_CLEAR(vmcs);
/* Guest state */
PrintTrace("Setting up guest state\n");
PrintTrace("GUEST_RIP: %x (%u)\n", entry_eip, entry_eip);
- VMCS_WRITE(GUEST_RIP,&entry_eip);
+ VMCS_WRITE(GUEST_RIP, &entry_eip);
SetCRBitsCorrectly(IA32_VMX_CR0_FIXED0_MSR, IA32_VMX_CR0_FIXED1_MSR, GUEST_CR0);
SetCRBitsCorrectly(IA32_VMX_CR4_FIXED0_MSR, IA32_VMX_CR4_FIXED1_MSR, GUEST_CR4);
ret = Init_VMCS_GuestState();
PrintTrace("InitGuestState returned\n");
+
if (ret != VMX_SUCCESS) {
if (ret == VMX_FAIL_VALID) {
PrintTrace("Init Guest state: VMCS FAILED WITH ERROR\n");
return ret;
}
PrintTrace("GUEST_RSP: %x (%u)\n", guest_esp, (uint_t)guest_esp);
- VMCS_WRITE(GUEST_RSP,&guest_esp);
+ VMCS_WRITE(GUEST_RSP, &guest_esp);
// tmpReg = 0x4100;
tmpReg = 0xffffffff;
- if (VMCS_WRITE(EXCEPTION_BITMAP,&tmpReg ) != VMX_SUCCESS) {
+ if (VMCS_WRITE(EXCEPTION_BITMAP, &tmpReg) != VMX_SUCCESS) {
PrintInfo("Bitmap error\n");
}
-static vmcs_t * allocate_vmcs() {
+static vmcs_data* allocate_vmcs() {
reg_ex_t msr;
- vmcs_t * vmcs_page = (vmcs_t *)V3_VAddr(V3_AllocPages(1));
+ vmcs_data* vmcs_page = (vmcs_data*)V3_VAddr(V3_AllocPages(1));
- memset(vmcb_page, 0, 4096);
+ memset(vmcs_page, 0, 4096);
v3_get_msr(VMX_BASIC_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
- *(uint32_t *)vmcs_page = ((struct vmx_basic_msr *)msr.val)->revision;
+ vmcs_page->revision = ((struct vmx_basic_msr)msr).revision;
return vmcs_page;
}
-static void init_vmcs_bios(vmcs_t * vmcs, struct guest_info * vm_info) {
+static void init_vmcs_bios(struct guest_info * vm_info)
+{
+
}
static int init_vmx_guest(struct guest_info * info, struct v3_vm_config * config_ptr) {
v3_pre_config_guest(info, config_ptr);
+ struct vmx_data* data;
+
+ PrintDebug("Allocating vmx_data\n");
+ data = (struct vmx_data*)V3_Malloc(sizeof(struct vmx_data));
PrintDebug("Allocating VMCS\n");
- info->vmm_data = (void *)allocate_vmcs();
+ data->vmcs = allocate_vmcs();
- PrintDebug("Initializing VMCS (addr=%p)\n", (void *)info->vmm_data);
- init_vmcs_bios((vmcs_t *)(info->vmm_data), info);
+ info->vmm_data = (void*)data;
+
+ PrintDebug("Initializing VMCS (addr=%p)\n", info->vmm_data);
+ init_vmcs_bios((struct vmx_data*)(info->vmm_data), info);
v3_post_config_guest(info, config_ptr);
-static int start_svm_guest(struct guest_info *info) {
+static int start_vmx_guest(struct guest_info *info) {
+ struct vmx_data* vmx_data = (struct vmx_data*)info->vmm_data;
+ int vmx_ret;
+
+ // Have to do a whole lot of flag setting here
+ vmx_ret = vmcs_clear(vmx_data->vmcs);
+ if(vmx_ret != VMX_SUCCESS) {
+ PrintDebug("VMCS Clear failed\n");
+ return -1;
+ }
+ vmx_ret = vmcs_load(vmx_data->vmcs);
+ if(vmx_ret != VMX_SUCCESS) {
+ PrintDebug("Executing VMPTRLD\n");
+ return -1;
+ }
+
+ // Setup guest state
return -1;
}
}
} else {
- PrintDebug("VMX not supported on this cpu\n");
- return 0;
+ PrintDebug("VMX not supported on this cpu\n");
+ return 0;
}
return 1;
-
}
static int has_vmx_nested_paging() {
- vmwrite(HOST_IDTR_BASE,
+ // vmwrite(HOST_IDTR_BASE,
}
void v3_init_vmx(struct v3_ctrl_ops * vm_ops) {
v3_msr_t basic_msr;
- // Setup the host state save area
- void * host_state = V3_AllocPages(1);
-
- v3_get_msr(VMX_BASIC_MSR, &(basic_msr.hi), &(basic_msr.lo));
-
- *(uint32_t *)host_state = ((struct vmx_basic_msr *)basic_msr.value)->revision;
- PrintDebug("VMX revision: 0x%p\n", host_state);
-
__asm__ __volatile__ (
"movl %%cr4, %%ebx; "
"orl %%ebx, 0x00002000; "
"movl %%ebx, %%cr0"
);
+ // Setup VMXON Region
+ vmxon_ptr = allocate_vmcs();
+ PrintDebug("VMX revision: 0x%p\n", (void*)vmxon_ptr);
- if (v3_enable_vmx(host_state) == 0) {
- PrintDebug("VMX Enabled\n");
+ if (v3_enable_vmx(vmxon_ptr) == 0) {
+ PrintDebug("VMX Enabled\n");
} else {
- PrintDebug("VMX initialization failure\n");
+ PrintError("VMX initialization failure\n");
+ return;
}
if (has_vmx_nested_paging() == 1) {
- v3_cpu_type = V3_VMX_EPT_CPU;
+ v3_cpu_type = V3_VMX_EPT_CPU;
} else {
- v3_cpu_type = V3_VMX_CPU;
+ v3_cpu_type = V3_VMX_CPU;
}
// Setup the VMX specific vmm operations
