#include <palacios/vmm_lowlevel.h>
#include <palacios/vmm_config.h>
#include <palacios/vmm_ctrl_regs.h>
+#include <palacios/vm_guest_mem.h>
+static addr_t vmxon_ptr_phys;
+extern int v3_vmx_exit_handler();
+extern int v3_vmx_vmlaunch(struct v3_gprs * vm_regs);
-//
-//
-// CRUFT
-//
-//
-
-#if 0
-
-#include <palacios/vmm_util.h>
-#include <palacios/vmm_string.h>
-#include <palacios/vmm_ctrl_regs.h>
-
-
-
-extern int Launch_VM(ullong_t vmcsPtr, uint_t eip);
-
-#define NUMPORTS 65536
-
-
-#define VMXASSIST_INFO_PORT 0x0e9
-#define ROMBIOS_PANIC_PORT 0x400
-#define ROMBIOS_PANIC_PORT2 0x401
-#define ROMBIOS_INFO_PORT 0x402
-#define ROMBIOS_DEBUG_PORT 0x403
-
-
-
-static uint_t GetLinearIP(struct VM * vm) {
- if (vm->state == VM_VMXASSIST_V8086_BIOS || vm->state == VM_VMXASSIST_V8086) {
- return vm->vmcs.guestStateArea.cs.baseAddr + vm->vmcs.guestStateArea.rip;
- } else {
- return vm->vmcs.guestStateArea.rip;
- }
-}
-
-
-
-
-#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 TEMPLATE_CODE_LEN 35
-
-uint_t oldesp = 0;
-uint_t myregs = 0;
-
-
-
-
-
-extern uint_t VMCS_LAUNCH();
-extern uint_t Init_VMCS_HostState();
-extern uint_t Init_VMCS_GuestState();
-
-
-
-
-extern int Get_CR2();
-extern int vmRunning;
-
-
-
-
-
-void DecodeCurrentInstruction(struct VM *vm, struct Instruction *inst)
-{
- // this is a gruesome hack
- uint_t address = GetLinearIP(vm);
- uint_t length = vm->vmcs.exitInfoFields.instrLength;
- unsigned char *t = (unsigned char *) address;
-
-
-
- PrintTrace("DecodeCurrentInstruction: instruction is\n");
- PrintTraceMemDump(t,length);
-
- if (length==3 && t[0]==0x0f && t[1]==0x22 && t[2]==0xc0) {
- // mov from eax to cr0
- // usually used to signal
- inst->type=VM_MOV_TO_CR0;
- inst->address=address;
- inst->size=length;
- inst->input1=vm->registers.eax;
- inst->input2=vm->vmcs.guestStateArea.cr0;
- inst->output=vm->registers.eax;
- PrintTrace("MOV FROM EAX TO CR0\n");
- } else {
- inst->type=VM_UNKNOWN_INST;
- }
-}
-
-
-
-static void ConfigureExits(struct VM *vm)
-{
- CopyOutVMCSExecCtrlFields(&(vm->vmcs.execCtrlFields));
-
- vm->vmcs.execCtrlFields.pinCtrls |= 0
- // EXTERNAL_INTERRUPT_EXITING
- | NMI_EXITING;
- vm->vmcs.execCtrlFields.procCtrls |= 0
- // INTERRUPT_WINDOWS_EXIT
- | USE_TSC_OFFSETTING
- | HLT_EXITING
- | INVLPG_EXITING
- | MWAIT_EXITING
- | RDPMC_EXITING
- | RDTSC_EXITING
- | MOVDR_EXITING
- | UNCONDITION_IO_EXITING
- | MONITOR_EXITING
- | PAUSE_EXITING ;
-
- CopyInVMCSExecCtrlFields(&(vm->vmcs.execCtrlFields));
-
- CopyOutVMCSExitCtrlFields(&(vm->vmcs.exitCtrlFields));
-
- vm->vmcs.exitCtrlFields.exitCtrls |= ACK_IRQ_ON_EXIT;
-
- CopyInVMCSExitCtrlFields(&(vm->vmcs.exitCtrlFields));
-
-
-/* VMCS_READ(VM_EXIT_CTRLS, &flags); */
-/* flags |= ACK_IRQ_ON_EXIT; */
-/* VMCS_WRITE(VM_EXIT_CTRLS, &flags); */
-}
-
-
-extern int RunVMM();
-extern int SAFE_VM_LAUNCH();
-
-int MyLaunch(struct VM *vm)
+static int inline check_vmcs_write(vmcs_field_t field, addr_t val)
{
- ullong_t vmcs = (ullong_t)((uint_t) (vm->vmcsregion));
- uint_t entry_eip = vm->descriptor.entry_ip;
- uint_t exit_eip = vm->descriptor.exit_eip;
- uint_t guest_esp = vm->descriptor.guest_esp;
- uint_t f = 0xffffffff;
- uint_t tmpReg = 0;
- int ret;
- int vmm_ret = 0;
-
- PrintTrace("Guest ESP: 0x%x (%u)\n", guest_esp, guest_esp);
-
- exit_eip = (uint_t)RunVMM;
-
- PrintTrace("Clear\n");
- VMCS_CLEAR(vmcs);
- PrintTrace("Load\n");
- VMCS_LOAD(vmcs);
-
-
- PrintTrace("VMCS_LINK_PTR\n");
- VMCS_WRITE(VMCS_LINK_PTR, &f);
- PrintTrace("VMCS_LINK_PTR_HIGH\n");
- VMCS_WRITE(VMCS_LINK_PTR_HIGH, &f);
-
-
- SetCtrlBitsCorrectly(IA32_VMX_PINBASED_CTLS_MSR, PIN_VM_EXEC_CTRLS);
- SetCtrlBitsCorrectly(IA32_VMX_PROCBASED_CTLS_MSR, PROC_VM_EXEC_CTRLS);
- SetCtrlBitsCorrectly(IA32_VMX_EXIT_CTLS_MSR, VM_EXIT_CTRLS);
- SetCtrlBitsCorrectly(IA32_VMX_ENTRY_CTLS_MSR, VM_ENTRY_CTRLS);
-
- //
- //
- //SetCtrlBitsCorrectly(IA32_something,GUEST_IA32_DEBUGCTL);
- //SetCtrlBitsCorrectly(IA32_something,GUEST_IA32_DEBUGCTL_HIGH);
-
-
- /* Host state */
- PrintTrace("Setting up host state\n");
- SetCRBitsCorrectly(IA32_VMX_CR0_FIXED0_MSR, IA32_VMX_CR0_FIXED1_MSR, HOST_CR0);
- SetCRBitsCorrectly(IA32_VMX_CR4_FIXED0_MSR, IA32_VMX_CR4_FIXED1_MSR, HOST_CR4);
- ret = Init_VMCS_HostState();
-
- if (ret != VMX_SUCCESS) {
- if (ret == VMX_FAIL_VALID) {
- PrintTrace("Init Host state: VMCS FAILED WITH ERROR\n");
- } else {
- PrintTrace("Init Host state: Invalid VMCS\n");
- }
- return ret;
- }
-
- // PrintTrace("HOST_RIP: %x (%u)\n", exit_eip, exit_eip);
- VMCS_WRITE(HOST_RIP, &exit_eip);
-
- /* Guest state */
- PrintTrace("Setting up guest state\n");
- PrintTrace("GUEST_RIP: %x (%u)\n", entry_eip, 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");
+ int ret = 0;
+ ret = vmcs_write(field,val);
- if (ret != VMX_SUCCESS) {
- if (ret == VMX_FAIL_VALID) {
- PrintTrace("Init Guest state: VMCS FAILED WITH ERROR\n");
- } else {
- PrintTrace("Init Guest state: Invalid VMCS\n");
+ if (ret != VMX_SUCCESS) {
+ PrintError("VMWRITE error on %s!: %d\n", v3_vmcs_field_to_str(field), ret);
+ return 1;
}
- return ret;
- }
- PrintTrace("GUEST_RSP: %x (%u)\n", guest_esp, (uint_t)guest_esp);
- VMCS_WRITE(GUEST_RSP, &guest_esp);
-
- // tmpReg = 0x4100;
- tmpReg = 0xffffffff;
- if (VMCS_WRITE(EXCEPTION_BITMAP, &tmpReg) != VMX_SUCCESS) {
- PrintInfo("Bitmap error\n");
- }
-
- ConfigureExits(vm);
-
- PrintTrace("VMCS_LAUNCH\n");
-
- vm->state=VM_VMXASSIST_STARTUP;
-
- vmm_ret = SAFE_VM_LAUNCH();
-
- PrintTrace("VMM error %d\n", vmm_ret);
-
- return vmm_ret;
-}
-
-
-
-
-int VMLaunch(struct VMDescriptor *vm)
-{
- VMCS * vmcs = CreateVMCS();
- int rc;
-
- ullong_t vmcs_ptr = (ullong_t)((uint_t)vmcs);
- uint_t top = (vmcs_ptr >> 32) & 0xffffffff;
- uint_t bottom = (vmcs_ptr) & 0xffffffff;
- theVM.vmcsregion = vmcs;
- theVM.descriptor = *vm;
-
- PrintTrace("vmcs_ptr_top=%x vmcs_ptr_bottom=%x, eip=%x\n", top, bottom, vm->entry_ip);
- rc = MyLaunch(&theVM); // vmcs_ptr, vm->entry_ip, vm->exit_eip, vm->guest_esp);
- PrintTrace("Returned from MyLaunch();\n");
- return rc;
+ return 0;
}
-
-
-
-//
-//
-// END CRUFT
-//
-//
-
-#endif
-
static int update_vmcs_host_state(struct guest_info * info) {
+ int vmx_ret = 0;
addr_t tmp;
struct vmx_data * arch_data = (struct vmx_data *)(info->vmm_data);
struct v3_msr tmp_msr;
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_CR0, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_CR0, tmp);
__asm__ __volatile__ ( "movq %%cr3, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_CR3, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_CR3, tmp);
__asm__ __volatile__ ( "movq %%cr4, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_CR4, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_CR4, tmp);
- vmcs_write(VMCS_HOST_GDTR_BASE, arch_data->host_state.gdtr.base);
- vmcs_write(VMCS_HOST_IDTR_BASE, arch_data->host_state.idtr.base);
- vmcs_write(VMCS_HOST_TR_BASE, arch_data->host_state.tr.base);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_GDTR_BASE, arch_data->host_state.gdtr.base);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_IDTR_BASE, arch_data->host_state.idtr.base);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_TR_BASE, arch_data->host_state.tr.base);
#define FS_BASE_MSR 0xc0000100
#define GS_BASE_MSR 0xc0000101
// FS.BASE MSR
v3_get_msr(FS_BASE_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_HOST_FS_BASE, tmp_msr.value);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_FS_BASE, tmp_msr.value);
// GS.BASE MSR
v3_get_msr(GS_BASE_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_HOST_GS_BASE, tmp_msr.value);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_GS_BASE, tmp_msr.value);
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_CS_SELECTOR, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_CS_SELECTOR, tmp);
__asm__ __volatile__ ( "movq %%ss, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_SS_SELECTOR, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_SS_SELECTOR, tmp);
__asm__ __volatile__ ( "movq %%ds, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_DS_SELECTOR, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_DS_SELECTOR, tmp);
__asm__ __volatile__ ( "movq %%es, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_ES_SELECTOR, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_ES_SELECTOR, tmp);
__asm__ __volatile__ ( "movq %%fs, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_FS_SELECTOR, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_FS_SELECTOR, tmp);
__asm__ __volatile__ ( "movq %%gs, %0; "
: "=q"(tmp)
:
);
- vmcs_write(VMCS_HOST_GS_SELECTOR, tmp);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_GS_SELECTOR, tmp);
- vmcs_write(VMCS_HOST_TR_SELECTOR, arch_data->host_state.tr.selector);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_TR_SELECTOR, arch_data->host_state.tr.selector);
#define SYSENTER_CS_MSR 0x00000174
// SYSENTER CS MSR
v3_get_msr(SYSENTER_CS_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_HOST_SYSENTER_CS, tmp_msr.value);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_SYSENTER_CS, tmp_msr.lo);
// SYSENTER_ESP MSR
v3_get_msr(SYSENTER_ESP_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_HOST_SYSENTER_ESP, tmp_msr.value);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_SYSENTER_ESP, tmp_msr.value);
// SYSENTER_EIP MSR
v3_get_msr(SYSENTER_EIP_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_HOST_SYSENTER_EIP, tmp_msr.value);
+ vmx_ret |= check_vmcs_write(VMCS_HOST_SYSENTER_EIP, tmp_msr.value);
-
-
- return 0;
+ return vmx_ret;
}
-static addr_t vmxon_ptr_phys;
-extern int v3_vmx_exit_handler();
-extern int v3_vmx_vmlaunch();
#if 0
PrintDebug("MSR %x = %x : %x \n", msr_num, mask_msr.hi, mask_msr.lo);
- val &= mask_msr.lo;
- val &= mask_msr.hi;
+ val |= mask_msr.lo;
+ val |= mask_msr.hi;
return val;
}
PrintDebug("MSR %x = %p, %x = %p \n", msr_num0, (void*)msr0_val, msr_num1, (void*)msr1_val);
- val &= msr0_val;
- val &= msr1_val;
+ val |= msr0_val;
+ val |= msr1_val;
return val;
}
#endif
-static int inline check_vmcs_write(vmcs_field_t field, addr_t val)
-{
- int ret = 0;
- ret = vmcs_write(field,val);
-
- if (ret != VMX_SUCCESS) {
- PrintError("VMWRITE error on %s!: %d\n", v3_vmcs_field_to_str(field), ret);
- return 1;
- }
-
- return 0;
-}
-
static void inline translate_segment_access(struct v3_segment * v3_seg,
struct vmcs_segment_access * access)
/* CS Segment */
translate_segment_access(&(info->segments.cs), &access);
- ret &= check_vmcs_write(VMCS_GUEST_CS_BASE, info->segments.cs.base);
- ret &= check_vmcs_write(VMCS_GUEST_CS_SELECTOR, info->segments.cs.selector);
- ret &= check_vmcs_write(VMCS_GUEST_CS_LIMIT, info->segments.cs.limit);
- ret &= check_vmcs_write(VMCS_GUEST_CS_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_CS_BASE, info->segments.cs.base);
+ ret |= check_vmcs_write(VMCS_GUEST_CS_SELECTOR, info->segments.cs.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_CS_LIMIT, info->segments.cs.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_CS_ACCESS, access.value);
/* SS Segment */
translate_segment_access(&(info->segments.ss), &access);
- ret &= check_vmcs_write(VMCS_GUEST_SS_BASE, info->segments.ss.base);
- ret &= check_vmcs_write(VMCS_GUEST_SS_SELECTOR, info->segments.ss.selector);
- ret &= check_vmcs_write(VMCS_GUEST_SS_LIMIT, info->segments.ss.limit);
- ret &= check_vmcs_write(VMCS_GUEST_SS_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_SS_BASE, info->segments.ss.base);
+ ret |= check_vmcs_write(VMCS_GUEST_SS_SELECTOR, info->segments.ss.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_SS_LIMIT, info->segments.ss.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_SS_ACCESS, access.value);
/* DS Segment */
translate_segment_access(&(info->segments.ds), &access);
- ret &= check_vmcs_write(VMCS_GUEST_DS_BASE, info->segments.ds.base);
- ret &= check_vmcs_write(VMCS_GUEST_DS_SELECTOR, info->segments.ds.selector);
- ret &= check_vmcs_write(VMCS_GUEST_DS_LIMIT, info->segments.ds.limit);
- ret &= check_vmcs_write(VMCS_GUEST_DS_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_DS_BASE, info->segments.ds.base);
+ ret |= check_vmcs_write(VMCS_GUEST_DS_SELECTOR, info->segments.ds.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_DS_LIMIT, info->segments.ds.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_DS_ACCESS, access.value);
/* ES Segment */
translate_segment_access(&(info->segments.es), &access);
- ret &= check_vmcs_write(VMCS_GUEST_ES_BASE, info->segments.es.base);
- ret &= check_vmcs_write(VMCS_GUEST_ES_SELECTOR, info->segments.es.selector);
- ret &= check_vmcs_write(VMCS_GUEST_ES_LIMIT, info->segments.es.limit);
- ret &= check_vmcs_write(VMCS_GUEST_ES_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_ES_BASE, info->segments.es.base);
+ ret |= check_vmcs_write(VMCS_GUEST_ES_SELECTOR, info->segments.es.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_ES_LIMIT, info->segments.es.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_ES_ACCESS, access.value);
/* FS Segment */
translate_segment_access(&(info->segments.fs), &access);
- ret &= check_vmcs_write(VMCS_GUEST_FS_BASE, info->segments.fs.base);
- ret &= check_vmcs_write(VMCS_GUEST_FS_SELECTOR, info->segments.fs.selector);
- ret &= check_vmcs_write(VMCS_GUEST_FS_LIMIT, info->segments.fs.limit);
- ret &= check_vmcs_write(VMCS_GUEST_FS_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_FS_BASE, info->segments.fs.base);
+ ret |= check_vmcs_write(VMCS_GUEST_FS_SELECTOR, info->segments.fs.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_FS_LIMIT, info->segments.fs.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_FS_ACCESS, access.value);
/* GS Segment */
translate_segment_access(&(info->segments.gs), &access);
- ret &= check_vmcs_write(VMCS_GUEST_GS_BASE, info->segments.gs.base);
- ret &= check_vmcs_write(VMCS_GUEST_GS_SELECTOR, info->segments.gs.selector);
- ret &= check_vmcs_write(VMCS_GUEST_GS_LIMIT, info->segments.gs.limit);
- ret &= check_vmcs_write(VMCS_GUEST_GS_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_GS_BASE, info->segments.gs.base);
+ ret |= check_vmcs_write(VMCS_GUEST_GS_SELECTOR, info->segments.gs.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_GS_LIMIT, info->segments.gs.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_GS_ACCESS, access.value);
/* LDTR segment */
translate_segment_access(&(info->segments.ldtr), &access);
- ret &= check_vmcs_write(VMCS_GUEST_LDTR_BASE, info->segments.ldtr.base);
- ret &= check_vmcs_write(VMCS_GUEST_LDTR_SELECTOR, info->segments.ldtr.selector);
- ret &= check_vmcs_write(VMCS_GUEST_LDTR_LIMIT, info->segments.ldtr.limit);
- ret &= check_vmcs_write(VMCS_GUEST_LDTR_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_LDTR_BASE, info->segments.ldtr.base);
+ ret |= check_vmcs_write(VMCS_GUEST_LDTR_SELECTOR, info->segments.ldtr.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_LDTR_LIMIT, info->segments.ldtr.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_LDTR_ACCESS, access.value);
/* TR Segment */
translate_segment_access(&(info->segments.tr), &access);
- ret &= check_vmcs_write(VMCS_GUEST_TR_BASE, info->segments.tr.base);
- ret &= check_vmcs_write(VMCS_GUEST_TR_SELECTOR, info->segments.ldtr.selector);
- ret &= check_vmcs_write(VMCS_GUEST_TR_LIMIT, info->segments.tr.limit);
- ret &= check_vmcs_write(VMCS_GUEST_TR_ACCESS, access.value);
+ ret |= check_vmcs_write(VMCS_GUEST_TR_BASE, info->segments.tr.base);
+ ret |= check_vmcs_write(VMCS_GUEST_TR_SELECTOR, info->segments.ldtr.selector);
+ ret |= check_vmcs_write(VMCS_GUEST_TR_LIMIT, info->segments.tr.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_TR_ACCESS, access.value);
/* GDTR Segment */
- ret &= check_vmcs_write(VMCS_GUEST_GDTR_BASE, info->segments.gdtr.base);
- ret &= check_vmcs_write(VMCS_GUEST_GDTR_LIMIT, info->segments.gdtr.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_GDTR_BASE, info->segments.gdtr.base);
+ ret |= check_vmcs_write(VMCS_GUEST_GDTR_LIMIT, info->segments.gdtr.limit);
/* IDTR Segment*/
- ret &= check_vmcs_write(VMCS_GUEST_IDTR_BASE, info->segments.idtr.base);
- ret &= check_vmcs_write(VMCS_GUEST_IDTR_LIMIT, info->segments.idtr.limit);
+ ret |= check_vmcs_write(VMCS_GUEST_IDTR_BASE, info->segments.idtr.base);
+ ret |= check_vmcs_write(VMCS_GUEST_IDTR_LIMIT, info->segments.idtr.limit);
return ret;
}
((struct rflags *)&(vm_info->ctrl_regs.rflags))->iopl = 3;
- vm_info->rip = 0xfff0;
+ vm_info->rip = 0xd0000;
+ vm_info->vm_regs.rsp = 0x80000;
vm_info->segments.cs.selector = 0xf000;
vm_info->segments.cs.base = 0xf000 << 4;
}
-
static int init_vmcs_bios(struct guest_info * vm_info)
{
// TODO: Fix vmcs fields so they're 32-bit
struct vmx_data * vmx_data = (struct vmx_data *)vm_info->vmm_data;
- int vmx_ret;
+ int vmx_ret = 0;
- // Have to do a whole lot of flag setting here
- PrintDebug("Clearing VMCS\n");
+ PrintDebug("Clearing VMCS: %p\n",(void*)vmx_data->vmcs_ptr_phys);
vmx_ret = vmcs_clear(vmx_data->vmcs_ptr_phys);
if (vmx_ret != VMX_SUCCESS) {
/* Write VMX Control Fields */
v3_get_msr(VMX_PINBASED_CTLS_MSR,&(tmp_msr.hi),&(tmp_msr.lo));
- vmcs_write(VMCS_PIN_CTRLS, tmp_msr.lo);
+ /* Add NMI exiting */
+ tmp_msr.lo |= NMI_EXIT;
+ check_vmcs_write(VMCS_PIN_CTRLS, tmp_msr.lo);
v3_get_msr(VMX_PROCBASED_CTLS_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_PROC_CTRLS, tmp_msr.lo);
+ /* Add unconditional I/O */
+ tmp_msr.lo |= UNCOND_IO_EXIT;
+ check_vmcs_write(VMCS_PROC_CTRLS, tmp_msr.lo);
v3_get_msr(VMX_EXIT_CTLS_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_EXIT_CTRLS, tmp_msr.lo);
+ tmp_msr.lo |= HOST_ADDR_SPACE_SIZE;
+ check_vmcs_write(VMCS_EXIT_CTRLS, tmp_msr.lo);
+
v3_get_msr(VMX_ENTRY_CTLS_MSR, &(tmp_msr.hi), &(tmp_msr.lo));
- vmcs_write(VMCS_ENTRY_CTRLS, tmp_msr.lo);
+ check_vmcs_write(VMCS_ENTRY_CTRLS, tmp_msr.lo);
+
+
+ check_vmcs_write(VMCS_EXCP_BITMAP, 0xffffffff);
/* Cache GDTR, IDTR, and TR in host struct */
struct {
: "q"(&tmp_seg)
: "memory"
);
- vmx_data->host_state.gdtr.base = gdtr_base = tmp_seg.base;
+ gdtr_base = tmp_seg.base;
+ vmx_data->host_state.gdtr.base = gdtr_base;
__asm__ __volatile__(
"sidt (%0);"
);
vmx_data->host_state.tr.selector = tmp_seg.selector;
- struct tss_descriptor desc = ((struct tss_descriptor *)gdtr_base)[tmp_seg.selector];
-
+ /* The GDTR *index* is bits 3-15 of the selector. */
+ struct tss_descriptor * desc = (struct tss_descriptor *)
+ (gdtr_base + 8*(tmp_seg.selector>>3));
+
tmp_seg.base = (
- (desc.base1) |
- (desc.base2 << 16) |
- (desc.base3 << 24) |
+ (desc->base1) |
+ (desc->base2 << 16) |
+ (desc->base3 << 24) |
#ifdef __V3_64BIT__
- ((uint64_t)desc.base4 << 32)
+ ((uint64_t)desc->base4 << 32)
#else
(0)
#endif
vmx_data->host_state.tr.base = tmp_seg.base;
- update_vmcs_host_state(vm_info);
- vmcs_write(VMCS_HOST_RIP, (addr_t)&v3_vmx_exit_handler);
+ if(update_vmcs_host_state(vm_info)) {
+ PrintError("Could not write host state\n");
+ return -1;
+ }
// Setup guest state
// TODO: This is not 32-bit safe!
- vmx_ret &= check_vmcs_write(VMCS_GUEST_RIP, vm_info->rip);
- vmx_ret &= check_vmcs_write(VMCS_GUEST_CR0, 0x60000010);
+ vmx_ret |= check_vmcs_write(VMCS_GUEST_RIP, vm_info->rip);
+ vmx_ret |= check_vmcs_write(VMCS_GUEST_RSP, vm_info->vm_regs.rsp);
+ vmx_ret |= check_vmcs_write(VMCS_GUEST_CR0, 0x80000021);
- vmx_ret &= vmcs_write_guest_segments(vm_info);
+ vmx_ret |= vmcs_write_guest_segments(vm_info);
- vmx_ret &= check_vmcs_write(VMCS_GUEST_RFLAGS, vm_info->ctrl_regs.rflags);
- vmx_ret &= check_vmcs_write(VMCS_LINK_PTR, 0xffffffffffffffff);
+ vmx_ret |= check_vmcs_write(VMCS_GUEST_RFLAGS, vm_info->ctrl_regs.rflags);
+ vmx_ret |= check_vmcs_write(VMCS_LINK_PTR, 0xffffffffffffffff);
if (vmx_ret != 0) {
PrintError("Could not initialize VMCS segments\n");
return -1;
}
- v3_print_vmcs_guest_state();
- return 0;
-}
+#define VMXASSIST_START 0x000d0000
+ extern uint8_t vmxassist_start[];
+ extern uint8_t vmxassist_end[];
-int v3_vmx_handle_exit()
-{
- PrintDebug("Exit taken!\n");
+ addr_t vmxassist_dst = 0;
+ if(guest_pa_to_host_va(vm_info, VMXASSIST_START, &vmxassist_dst) == -1) {
+ PrintError("Could not find VMXASSIST destination\n");
+ return -1;
+ }
+ memcpy((void*)vmxassist_dst, vmxassist_start, vmxassist_end-vmxassist_start);
+
+ v3_print_vmcs_host_state();
+ v3_print_vmcs_guest_state();
return 0;
}
static int init_vmx_guest(struct guest_info * info, struct v3_vm_config * config_ptr) {
- PrintDebug("Entering init_vmx_guest\n");
v3_pre_config_guest(info, config_ptr);
struct vmx_data * data = NULL;
return -1;
}
- //v3_post_config_guest(info, config_ptr);
+ //v3_post_config_guest(info, config_ptr);
return 0;
}
PrintDebug("Attempting VMLAUNCH\n");
- ret = v3_vmx_vmlaunch();
-
- PrintDebug("Returned from VMLAUNCH\n");
-
- vmcs_read(VMCS_INSTR_ERR, &error, 4);
-
+ ret = v3_vmx_vmlaunch(&(info->vm_regs));
if (ret != VMX_SUCCESS) {
+ vmcs_read(VMCS_INSTR_ERR, &error, 4);
PrintError("VMLAUNCH failed: %d\n", error);
+
+ v3_print_vmcs_guest_state();
+ v3_print_vmcs_host_state();
}
+ PrintDebug("Returned from VMLAUNCH ret=%d(0x%x)\n", ret, ret);
return -1;
}
//
// Should check and return Error here....
+
// Setup VMXON Region
vmxon_ptr_phys = allocate_vmcs();
PrintDebug("VMXON pointer: 0x%p\n", (void*)vmxon_ptr_phys);
vm_ops->has_nested_paging = &has_vmx_nested_paging;
}
+
