#include <palacios/vmm_decoder.h>
#include <palacios/vmm_barrier.h>
#include <palacios/vmm_timeout.h>
+#include <palacios/vmm_debug.h>
#ifdef V3_CONFIG_CHECKPOINT
#include <palacios/vmm_checkpoint.h>
#include <palacios/vmx_assist.h>
#include <palacios/vmx_hw_info.h>
+#ifdef V3_CONFIG_MEM_TRACK
+#include <palacios/vmm_mem_track.h>
+#endif
+
#ifndef V3_CONFIG_DEBUG_VMX
#undef PrintDebug
#define PrintDebug(fmt, args...)
ret = vmcs_write(field, val);
if (ret != VMX_SUCCESS) {
- PrintError("VMWRITE error on %s!: %d\n", v3_vmcs_field_to_str(field), ret);
+ PrintError(VM_NONE, VCORE_NONE, "VMWRITE error on %s!: %d\n", v3_vmcs_field_to_str(field), ret);
return 1;
}
ret = vmcs_read(field, val);
if (ret != VMX_SUCCESS) {
- PrintError("VMREAD error on %s!: %d\n", v3_vmcs_field_to_str(field), ret);
+ PrintError(VM_NONE, VCORE_NONE, "VMREAD error on %s!: %d\n", v3_vmcs_field_to_str(field), ret);
}
return ret;
static addr_t allocate_vmcs() {
+ void *temp;
struct vmcs_data * vmcs_page = NULL;
- PrintDebug("Allocating page\n");
+ PrintDebug(VM_NONE, VCORE_NONE, "Allocating page\n");
- vmcs_page = (struct vmcs_data *)V3_VAddr(V3_AllocPages(1));
+ temp = V3_AllocPages(1); // need not be shadow-safe, not exposed to guest
+ if (!temp) {
+ PrintError(VM_NONE, VCORE_NONE, "Cannot allocate VMCS\n");
+ return -1;
+ }
+ vmcs_page = (struct vmcs_data *)V3_VAddr(temp);
memset(vmcs_page, 0, 4096);
vmcs_page->revision = hw_info.basic_info.revision;
- PrintDebug("VMX Revision: 0x%x\n", vmcs_page->revision);
+ PrintDebug(VM_NONE, VCORE_NONE, "VMX Revision: 0x%x\n", vmcs_page->revision);
return (addr_t)V3_PAddr((void *)vmcs_page);
}
#if 0
static int debug_efer_read(struct guest_info * core, uint_t msr, struct v3_msr * src, void * priv_data) {
struct v3_msr * efer = (struct v3_msr *)&(core->ctrl_regs.efer);
- V3_Print("\n\nEFER READ (val = %p)\n", (void *)efer->value);
+ V3_Print(core->vm_info, core, "\n\nEFER READ (val = %p)\n", (void *)efer->value);
v3_print_guest_state(core);
v3_print_vmcs();
static int debug_efer_write(struct guest_info * core, uint_t msr, struct v3_msr src, void * priv_data) {
struct v3_msr * efer = (struct v3_msr *)&(core->ctrl_regs.efer);
- V3_Print("\n\nEFER WRITE (old_val = %p) (new_val = %p)\n", (void *)efer->value, (void *)src.value);
+ V3_Print(core->vm_info, core, "\n\nEFER WRITE (old_val = %p) (new_val = %p)\n", (void *)efer->value, (void *)src.value);
v3_print_guest_state(core);
v3_print_vmcs();
// disable global interrupts for vm state initialization
v3_disable_ints();
- PrintDebug("Loading VMCS\n");
+ PrintDebug(core->vm_info, core, "Loading VMCS\n");
vmx_ret = vmcs_load(vmx_state->vmcs_ptr_phys);
vmx_state->state = VMX_UNLAUNCHED;
if (vmx_ret != VMX_SUCCESS) {
- PrintError("VMPTRLD failed\n");
+ PrintError(core->vm_info, core, "VMPTRLD failed\n");
return -1;
}
vmx_state->sec_proc_ctrls.value = hw_info.sec_proc_ctrls.def_val;
/* Print Control MSRs */
- V3_Print("CR0 MSR: req_val=%p, req_mask=%p\n", (void *)(addr_t)hw_info.cr0.req_val, (void *)(addr_t)hw_info.cr0.req_mask);
- V3_Print("CR4 MSR: req_val=%p, req_mask=%p\n", (void *)(addr_t)hw_info.cr4.req_val, (void *)(addr_t)hw_info.cr4.req_mask);
+ V3_Print(core->vm_info, core, "CR0 MSR: req_val=%p, req_mask=%p\n", (void *)(addr_t)hw_info.cr0.req_val, (void *)(addr_t)hw_info.cr0.req_mask);
+ V3_Print(core->vm_info, core, "CR4 MSR: req_val=%p, req_mask=%p\n", (void *)(addr_t)hw_info.cr4.req_val, (void *)(addr_t)hw_info.cr4.req_mask);
/* Add external interrupts, NMI exiting, and virtual NMI */
vmx_state->pin_ctrls.nmi_exit = 1;
+ vmx_state->pin_ctrls.virt_nmi = 1;
vmx_state->pin_ctrls.ext_int_exit = 1;
+
/* We enable the preemption timer by default to measure accurate guest time */
if (avail_pin_ctrls.active_preempt_timer) {
- V3_Print("VMX Preemption Timer is available\n");
+ V3_Print(core->vm_info, core, "VMX Preemption Timer is available\n");
vmx_state->pin_ctrls.active_preempt_timer = 1;
vmx_state->exit_ctrls.save_preempt_timer = 1;
}
+ // we want it to use this when halting
vmx_state->pri_proc_ctrls.hlt_exit = 1;
+ // cpuid tells it that it does not have these instructions
+ vmx_state->pri_proc_ctrls.monitor_exit = 1;
+ vmx_state->pri_proc_ctrls.mwait_exit = 1;
+ // we don't need to handle a pause, although this is where
+ // we could pull out of a spin lock acquire or schedule to find its partner
vmx_state->pri_proc_ctrls.pause_exit = 0;
+
vmx_state->pri_proc_ctrls.tsc_offset = 1;
#ifdef V3_CONFIG_TIME_VIRTUALIZE_TSC
vmx_state->pri_proc_ctrls.rdtsc_exit = 1;
// Setup Guests initial PAT field
vmx_ret |= check_vmcs_write(VMCS_GUEST_PAT, 0x0007040600070406LL);
+ // Capture CR8 mods so that we can keep the apic_tpr correct
+ vmx_state->pri_proc_ctrls.cr8_ld_exit = 1;
+ vmx_state->pri_proc_ctrls.cr8_str_exit = 1;
+
+
/* Setup paging */
if (core->shdw_pg_mode == SHADOW_PAGING) {
- PrintDebug("Creating initial shadow page table\n");
+ PrintDebug(core->vm_info, core, "Creating initial shadow page table\n");
if (v3_init_passthrough_pts(core) == -1) {
- PrintError("Could not initialize passthrough page tables\n");
+ PrintError(core->vm_info, core, "Could not initialize passthrough page tables\n");
return -1;
}
// Cause VM_EXIT whenever CR4.VMXE or CR4.PAE bits are written
- vmx_ret |= check_vmcs_write(VMCS_CR4_MASK, CR4_VMXE | CR4_PAE);
+ vmx_ret |= check_vmcs_write(VMCS_CR4_MASK, CR4_VMXE | CR4_PAE );
- core->ctrl_regs.cr3 = core->direct_map_pt;
+ v3_activate_passthrough_pt(core);
// vmx_state->pinbased_ctrls |= NMI_EXIT;
/* Add CR exits */
vmx_state->pri_proc_ctrls.cr3_ld_exit = 1;
vmx_state->pri_proc_ctrls.cr3_str_exit = 1;
-
+
+ // Note that we intercept cr4.pae writes
+ // and we have cr4 read-shadowed to the shadow pager's cr4
+
vmx_state->pri_proc_ctrls.invlpg_exit = 1;
/* Add page fault exits */
- if (v3_init_ept(core, &hw_info) == -1) {
- PrintError("Error initializing EPT\n");
+ if (v3_init_nested_paging_core(core, &hw_info) == -1) {
+ PrintError(core->vm_info, core, "Error initializing EPT\n");
return -1;
}
// Cause VM_EXIT whenever the CR4.VMXE bit is set
vmx_ret |= check_vmcs_write(VMCS_CR4_MASK, CR4_VMXE);
#define CR0_NE 0x00000020
- vmx_ret |= check_vmcs_write(VMCS_CR0_MASK, CR0_NE);
- //((struct cr0_32 *)&(core->shdw_pg_state.guest_cr0))->ne = 1;
+#define CR0_CD 0x40000000
+ vmx_ret |= check_vmcs_write(VMCS_CR0_MASK, CR0_NE | CR0_CD);
+ ((struct cr0_32 *)&(core->shdw_pg_state.guest_cr0))->ne = 1;
+ ((struct cr0_32 *)&(core->shdw_pg_state.guest_cr0))->cd = 0;
- if (v3_init_ept(core, &hw_info) == -1) {
- PrintError("Error initializing EPT\n");
+ if (v3_init_nested_paging_core(core, &hw_info) == -1) {
+ PrintError(core->vm_info, core, "Error initializing EPT\n");
return -1;
}
// v3_hook_msr(core->vm_info, EFER_MSR, &debug_efer_read, &debug_efer_write, core);
v3_hook_msr(core->vm_info, EFER_MSR, NULL, NULL, NULL);
} else {
- PrintError("Invalid Virtual paging mode (pg_mode=%d) (mach_type=%d)\n", core->shdw_pg_mode, v3_mach_type);
+ PrintError(core->vm_info, core, "Invalid Virtual paging mode (pg_mode=%d) (mach_type=%d)\n", core->shdw_pg_mode, v3_mach_type);
return -1;
}
int max_msrs = (hw_info.misc_info.max_msr_cache_size + 1) * 4;
int msr_ret = 0;
- V3_Print("Setting up MSR load/store areas (max_msr_count=%d)\n", max_msrs);
+ V3_Print(core->vm_info, core, "Setting up MSR load/store areas (max_msr_count=%d)\n", max_msrs);
if (max_msrs < 4) {
- PrintError("Max MSR cache size is too small (%d)\n", max_msrs);
+ PrintError(core->vm_info, core, "Max MSR cache size is too small (%d)\n", max_msrs);
return -1;
}
- vmx_state->msr_area_paddr = (addr_t)V3_AllocPages(1);
+ vmx_state->msr_area_paddr = (addr_t)V3_AllocPages(1); // need not be shadow-safe, not exposed to guest
if (vmx_state->msr_area_paddr == (addr_t)NULL) {
- PrintError("could not allocate msr load/store area\n");
+ PrintError(core->vm_info, core, "could not allocate msr load/store area\n");
return -1;
}
msr_ret |= v3_hook_msr(core->vm_info, IA32_CSTAR_MSR, NULL, NULL, NULL);
if (msr_ret != 0) {
- PrintError("Error configuring MSR save/restore area\n");
+ PrintError(core->vm_info, core, "Error configuring MSR save/restore area\n");
return -1;
}
#endif
+
if (v3_update_vmcs_ctrl_fields(core)) {
- PrintError("Could not write control fields!\n");
+ PrintError(core->vm_info, core, "Could not write control fields!\n");
return -1;
}
/*
if (v3_update_vmcs_host_state(core)) {
- PrintError("Could not write host state\n");
+ PrintError(core->vm_info, core, "Could not write host state\n");
return -1;
}
*/
int vmx_ret = 0;
vmx_state = (struct vmx_data *)V3_Malloc(sizeof(struct vmx_data));
+
+ if (!vmx_state) {
+ PrintError(core->vm_info, core, "Unable to allocate in initializing vmx vmcs\n");
+ return;
+ }
+
memset(vmx_state, 0, sizeof(struct vmx_data));
- PrintDebug("vmx_data pointer: %p\n", (void *)vmx_state);
+ PrintDebug(core->vm_info, core, "vmx_data pointer: %p\n", (void *)vmx_state);
- PrintDebug("Allocating VMCS\n");
+ PrintDebug(core->vm_info, core, "Allocating VMCS\n");
vmx_state->vmcs_ptr_phys = allocate_vmcs();
- PrintDebug("VMCS pointer: %p\n", (void *)(vmx_state->vmcs_ptr_phys));
+ PrintDebug(core->vm_info, core, "VMCS pointer: %p\n", (void *)(vmx_state->vmcs_ptr_phys));
core->vmm_data = vmx_state;
vmx_state->state = VMX_UNLAUNCHED;
- PrintDebug("Initializing VMCS (addr=%p)\n", core->vmm_data);
+ PrintDebug(core->vm_info, core, "Initializing VMCS (addr=%p)\n", core->vmm_data);
// TODO: Fix vmcs fields so they're 32-bit
- PrintDebug("Clearing VMCS: %p\n", (void *)vmx_state->vmcs_ptr_phys);
+ PrintDebug(core->vm_info, core, "Clearing VMCS: %p\n", (void *)vmx_state->vmcs_ptr_phys);
vmx_ret = vmcs_clear(vmx_state->vmcs_ptr_phys);
if (vmx_ret != VMX_SUCCESS) {
- PrintError("VMCLEAR failed\n");
+ PrintError(core->vm_info, core, "VMCLEAR failed\n");
return;
}
if (core->vm_info->vm_class == V3_PC_VM) {
- PrintDebug("Initializing VMCS\n");
+ PrintDebug(core->vm_info, core, "Initializing VMCS\n");
if (init_vmcs_bios(core, vmx_state) == -1) {
- PrintError("Error initializing VMCS to BIOS state\n");
+ PrintError(core->vm_info, core, "Error initializing VMCS to BIOS state\n");
return;
}
} else {
- PrintError("Invalid VM Class\n");
+ PrintError(core->vm_info, core, "Invalid VM Class\n");
return;
}
- PrintDebug("Serializing VMCS: %p\n", (void *)vmx_state->vmcs_ptr_phys);
+ PrintDebug(core->vm_info, core, "Serializing VMCS: %p\n", (void *)vmx_state->vmcs_ptr_phys);
vmx_ret = vmcs_clear(vmx_state->vmcs_ptr_phys);
core->core_run_state = CORE_STOPPED;
}
if (i == V3_CONFIG_MAX_CPUS) {
- PrintError("Could not find VALID CPU for VMX guest initialization\n");
+ PrintError(core->vm_info, core, "Could not find VALID CPU for VMX guest initialization\n");
return -1;
}
}
if (core->core_run_state != CORE_STOPPED) {
- PrintError("Error initializing VMX Core\n");
+ PrintError(core->vm_info, core, "Error initializing VMX Core\n");
return -1;
}
* 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;
+ struct vmx_data * vmx_info = (struct vmx_data *)(core->vmm_data);
+
+ // note that the vmcs pointer is an HPA, but we need an HVA
+ if (v3_chkpt_save(ctx, "vmcs_data", PAGE_SIZE_4KB,
+ V3_VAddr((void*) (vmx_info->vmcs_ptr_phys)))) {
+ PrintError(core->vm_info, core, "Could not save vmcs data for VMX\n");
+ return -1;
+ }
+
+ 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);
+ struct vmx_data * vmx_info = (struct vmx_data *)(core->vmm_data);
+ struct cr0_32 * shadow_cr0;
+ addr_t vmcs_page_paddr; //HPA
+
+ vmcs_page_paddr = (addr_t) V3_AllocPages(1); // need not be shadow-safe, not exposed to guest
+
+ if (!vmcs_page_paddr) {
+ PrintError(core->vm_info, core, "Could not allocate space for a vmcs in VMX\n");
+ return -1;
+ }
+
+ if (v3_chkpt_load(ctx, "vmcs_data", PAGE_SIZE_4KB,
+ V3_VAddr((void *)vmcs_page_paddr)) == -1) {
+ PrintError(core->vm_info, core, "Could not load vmcs data for VMX\n");
+ V3_FreePages((void*)vmcs_page_paddr,1);
+ return -1;
+ }
+
+ vmcs_clear(vmx_info->vmcs_ptr_phys);
+
+ // Probably need to delete the old one...
+ V3_FreePages((void*)(vmx_info->vmcs_ptr_phys),1);
+
+ vmcs_load(vmcs_page_paddr);
+
+ 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;
- }
- }
+ /* 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(core->vm_info, core, "Failed to activate shadow page tables\n");
+ return -1;
+ }
+ } else {
+ if (v3_activate_passthrough_pt(core) == -1) {
+ PrintError(core->vm_info, core, "Failed to activate passthrough page tables\n");
+ return -1;
+ }
}
-
- return 0;
+ }
+
+ return 0;
}
#endif
if ((info->intr_core_state.irq_started == 1) && (idt_vec_info.valid == 0)) {
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("Calling v3_injecting_intr\n");
+ V3_Print(info->vm_info, info, "Calling v3_injecting_intr\n");
#endif
info->intr_core_state.irq_started = 0;
v3_injecting_intr(info, info->intr_core_state.irq_vector, V3_EXTERNAL_IRQ);
int_info.error_code = 1;
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("Injecting exception %d with error code %x\n",
+ V3_Print(info->vm_info, info, "Injecting exception %d with error code %x\n",
int_info.vector, info->excp_state.excp_error_code);
#endif
}
int_info.valid = 1;
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("Injecting exception %d (EIP=%p)\n", int_info.vector, (void *)(addr_t)info->rip);
+ V3_Print(info->vm_info, info, "Injecting exception %d (EIP=%p)\n", int_info.vector, (void *)(addr_t)info->rip);
#endif
check_vmcs_write(VMCS_ENTRY_INT_INFO, int_info.value);
if ((info->intr_core_state.irq_started == 1) && (idt_vec_info.valid == 1)) {
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("IRQ pending from previous injection\n");
+ V3_Print(info->vm_info, info, "IRQ pending from previous injection\n");
#endif
// Copy the IDT vectoring info over to reinject the old interrupt
switch (v3_intr_pending(info)) {
case V3_EXTERNAL_IRQ: {
- info->intr_core_state.irq_vector = v3_get_intr(info);
+
+ int irq = v3_get_intr(info);
+
+ if (irq<0) {
+ break;
+ }
+
+ info->intr_core_state.irq_vector = irq;
ent_int.vector = info->intr_core_state.irq_vector;
ent_int.type = 0;
ent_int.error_code = 0;
ent_int.valid = 1;
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("Injecting Interrupt %d at exit %u(EIP=%p)\n",
+ V3_Print(info->vm_info, info, "Injecting Interrupt %d at exit %u(EIP=%p)\n",
info->intr_core_state.irq_vector,
(uint32_t)info->num_exits,
(void *)(addr_t)info->rip);
break;
}
case V3_NMI:
- PrintDebug("Injecting NMI\n");
+ PrintDebug(info->vm_info, info, "Injecting NMI\n");
ent_int.type = 2;
ent_int.vector = 2;
break;
case V3_SOFTWARE_INTR:
- PrintDebug("Injecting software interrupt\n");
+ PrintDebug(info->vm_info, info, "Injecting software interrupt\n");
ent_int.type = 4;
ent_int.valid = 1;
check_vmcs_read(VMCS_EXIT_INSTR_LEN, &instr_len);
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("Enabling Interrupt-Window exiting: %d\n", instr_len);
+ V3_Print(info->vm_info, info, "Enabling Interrupt-Window exiting: %d\n", instr_len);
#endif
vmx_info->pri_proc_ctrls.int_wndw_exit = 1;
int i = 0;
- V3_Print("\nExit Log (%d total exits):\n", (uint32_t)info->num_exits);
+ V3_Print(info->vm_info, info, "\nExit Log (%d total exits):\n", (uint32_t)info->num_exits);
for (i = 0; i < 10; i++) {
struct vmx_exit_info * tmp = &exit_log[cnt];
- V3_Print("%d:\texit_reason = %p\n", i, (void *)(addr_t)tmp->exit_reason);
- V3_Print("\texit_qual = %p\n", (void *)tmp->exit_qual);
- V3_Print("\tint_info = %p\n", (void *)(addr_t)tmp->int_info);
- V3_Print("\tint_err = %p\n", (void *)(addr_t)tmp->int_err);
- V3_Print("\tinstr_info = %p\n", (void *)(addr_t)tmp->instr_info);
- V3_Print("\tguest_linear_addr= %p\n", (void *)(addr_t)tmp->guest_linear_addr);
- V3_Print("\tRIP = %p\n", (void *)rip_log[cnt]);
+ V3_Print(info->vm_info, info, "%d:\texit_reason = %p\n", i, (void *)(addr_t)tmp->exit_reason);
+ V3_Print(info->vm_info, info, "\texit_qual = %p\n", (void *)tmp->exit_qual);
+ V3_Print(info->vm_info, info, "\tint_info = %p\n", (void *)(addr_t)tmp->int_info);
+ V3_Print(info->vm_info, info, "\tint_err = %p\n", (void *)(addr_t)tmp->int_err);
+ V3_Print(info->vm_info, info, "\tinstr_info = %p\n", (void *)(addr_t)tmp->instr_info);
+ V3_Print(info->vm_info, info, "\tguest_linear_addr= %p\n", (void *)(addr_t)tmp->guest_linear_addr);
+ V3_Print(info->vm_info, info, "\tRIP = %p\n", (void *)rip_log[cnt]);
cnt--;
v3_vmx_config_tsc_virtualization(struct guest_info * info) {
struct vmx_data * vmx_info = (struct vmx_data *)(info->vmm_data);
- if (info->time_state.time_flags & V3_TIME_TRAP_RDTSC) {
+ if (info->time_state.flags & VM_TIME_TRAP_RDTSC) {
if (!vmx_info->pri_proc_ctrls.rdtsc_exit) {
vmx_info->pri_proc_ctrls.rdtsc_exit = 1;
check_vmcs_write(VMCS_PROC_CTRLS, vmx_info->pri_proc_ctrls.value);
check_vmcs_write(VMCS_PROC_CTRLS, vmx_info->pri_proc_ctrls.value);
}
- tsc_offset = v3_tsc_host_offset(&info->time_state);
+ if (info->time_state.flags & VM_TIME_TSC_PASSTHROUGH) {
+ tsc_offset = 0;
+ } else {
+ tsc_offset = v3_tsc_host_offset(&info->time_state);
+ }
tsc_offset_high = (uint32_t)(( tsc_offset >> 32) & 0xffffffff);
tsc_offset_low = (uint32_t)(tsc_offset & 0xffffffff);
uint64_t guest_cycles = 0;
// Conditionally yield the CPU if the timeslice has expired
- v3_yield_cond(info);
+ v3_schedule(info);
- // disable global interrupts for vm state transition
- v3_disable_ints();
+#ifdef V3_CONFIG_MEM_TRACK
+ v3_mem_track_entry(info);
+#endif
// Update timer devices late after being in the VM so that as much
// of the time in the VM is accounted for as possible. Also do it before
// updating IRQ entry state so that any interrupts the timers raise get
- // handled on the next VM entry. Must be done with interrupts disabled.
- v3_advance_time(info);
+ // handled on the next VM entry.
+ v3_advance_time(info, NULL);
v3_update_timers(info);
+ // disable global interrupts for vm state transition
+ v3_disable_ints();
+
if (vmcs_store() != vmx_info->vmcs_ptr_phys) {
vmcs_clear(vmx_info->vmcs_ptr_phys);
vmcs_load(vmx_info->vmcs_ptr_phys);
}
- // Perform last-minute time bookkeeping prior to entering the VM
- v3_time_enter_vm(info);
+ // Perform last-minute time setup prior to entering the VM
v3_vmx_config_tsc_virtualization(info);
-
-
if (v3_update_vmcs_host_state(info)) {
v3_enable_ints();
- PrintError("Could not write host state\n");
+ PrintError(info->vm_info, info, "Could not write host state\n");
return -1;
}
check_vmcs_write(VMCS_PREEMPT_TIMER, preempt_window);
}
-
+
+ V3_FP_ENTRY_RESTORE(info);
{
uint64_t entry_tsc = 0;
uint64_t exit_tsc = 0;
+#ifdef V3_CONFIG_PWRSTAT_TELEMETRY
+ v3_pwrstat_telemetry_enter(info);
+#endif
+
+#ifdef V3_CONFIG_PMU_TELEMETRY
+ v3_pmu_telemetry_enter(info);
+#endif
+
if (vmx_info->state == VMX_UNLAUNCHED) {
vmx_info->state = VMX_LAUNCHED;
rdtscll(entry_tsc);
rdtscll(exit_tsc);
} else {
- V3_ASSERT(vmx_info->state != VMX_UNLAUNCHED);
+ V3_ASSERT(info->vm_info, info,vmx_info->state != VMX_UNLAUNCHED);
rdtscll(entry_tsc);
ret = v3_vmx_resume(&(info->vm_regs), info, &(info->ctrl_regs));
rdtscll(exit_tsc);
}
guest_cycles = exit_tsc - entry_tsc;
+
+#ifdef V3_CONFIG_PMU_TELEMETRY
+ v3_pmu_telemetry_exit(info);
+#endif
+
+#ifdef V3_CONFIG_PWRSTAT_TELEMETRY
+ v3_pwrstat_telemetry_exit(info);
+#endif
}
- // PrintDebug("VMX Exit: ret=%d\n", ret);
+ // PrintDebug(info->vm_info, info, "VMX Exit: ret=%d\n", ret);
if (ret != VMX_SUCCESS) {
uint32_t error = 0;
v3_enable_ints();
- PrintError("VMENTRY Error: %d (launch_ret = %d)\n", error, ret);
+ PrintError(info->vm_info, info, "VMENTRY Error: %d (launch_ret = %d)\n", error, ret);
return -1;
}
info->num_exits++;
+ V3_FP_EXIT_SAVE(info);
+
/* If we have the preemption time, then use it to get more accurate guest time */
if (vmx_info->pin_ctrls.active_preempt_timer) {
uint32_t cycles_left = 0;
}
// Immediate exit from VM time bookkeeping
- v3_time_exit_vm(info, &guest_cycles);
-
+ v3_advance_time(info, &guest_cycles);
/* Update guest state */
v3_vmx_save_vmcs(info);
check_vmcs_read(VMCS_GUEST_PHYS_ADDR, &(exit_info.ept_fault_addr));
}
- //PrintDebug("VMX Exit taken, id-qual: %u-%lu\n", exit_info.exit_reason, exit_info.exit_qual);
+ //PrintDebug(info->vm_info, info, "VMX Exit taken, id-qual: %u-%lu\n", exit_info.exit_reason, exit_info.exit_qual);
exit_log[info->num_exits % 10] = exit_info;
rip_log[info->num_exits % 10] = get_addr_linear(info, info->rip, &(info->segments.cs));
update_irq_exit_state(info);
#endif
- if (exit_info.exit_reason == VMEXIT_INTR_WINDOW) {
+ if (exit_info.exit_reason == VMX_EXIT_INTR_WINDOW) {
// This is a special case whose only job is to inject an interrupt
vmcs_read(VMCS_PROC_CTRLS, &(vmx_info->pri_proc_ctrls.value));
vmx_info->pri_proc_ctrls.int_wndw_exit = 0;
vmcs_write(VMCS_PROC_CTRLS, vmx_info->pri_proc_ctrls.value);
#ifdef V3_CONFIG_DEBUG_INTERRUPTS
- V3_Print("Interrupts available again! (RIP=%llx)\n", info->rip);
+ V3_Print(info->vm_info, info, "Interrupts available again! (RIP=%llx)\n", info->rip);
#endif
}
+
+ // Lastly we check for an NMI exit, and reinject if so
+ {
+ struct vmx_basic_exit_info * basic_info = (struct vmx_basic_exit_info *)&(exit_info.exit_reason);
+
+ if (basic_info->reason == VMX_EXIT_INFO_EXCEPTION_OR_NMI) {
+ if ((uint8_t)exit_info.int_info == 2) {
+ asm("int $2");
+ }
+ }
+ }
+
// reenable global interrupts after vm exit
v3_enable_ints();
// Conditionally yield the CPU if the timeslice has expired
- v3_yield_cond(info);
+ v3_schedule(info);
+ v3_advance_time(info, NULL);
+ v3_update_timers(info);
if (v3_handle_vmx_exit(info, &exit_info) == -1) {
- PrintError("Error in VMX exit handler (Exit reason=%x)\n", exit_info.exit_reason);
+ PrintError(info->vm_info, info, "Error in VMX exit handler (Exit reason=%x)\n", exit_info.exit_reason);
return -1;
}
v3_handle_timeouts(info, guest_cycles);
}
+#ifdef V3_CONFIG_MEM_TRACK
+ v3_mem_track_exit(info);
+#endif
+
return 0;
}
int v3_start_vmx_guest(struct guest_info * info) {
- PrintDebug("Starting VMX core %u\n", info->vcpu_id);
-
- if (info->vcpu_id == 0) {
- info->core_run_state = CORE_RUNNING;
- } else {
-
- PrintDebug("VMX core %u: Waiting for core initialization\n", info->vcpu_id);
-
- while (info->core_run_state == CORE_STOPPED) {
-
- if (info->vm_info->run_state == VM_STOPPED) {
- // The VM was stopped before this core was initialized.
- return 0;
- }
+ PrintDebug(info->vm_info, info, "Starting VMX core %u\n", info->vcpu_id);
- v3_yield(info);
- //PrintDebug("VMX core %u: still waiting for INIT\n",info->vcpu_id);
- }
-
- PrintDebug("VMX core %u initialized\n", info->vcpu_id);
-
- // We'll be paranoid about race conditions here
- v3_wait_at_barrier(info);
+#if V3_CONFIG_HVM
+ if (v3_setup_hvm_vm_for_boot(vm)) {
+ PrintError(vm, VCORE_NONE, "HVM setup for boot failed\n");
+ return -1;
}
-
-
- PrintDebug("VMX core %u: I am starting at CS=0x%x (base=0x%p, limit=0x%x), RIP=0x%p\n",
- info->vcpu_id, info->segments.cs.selector, (void *)(info->segments.cs.base),
- info->segments.cs.limit, (void *)(info->rip));
-
-
- PrintDebug("VMX core %u: Launching VMX VM on logical core %u\n", info->vcpu_id, info->pcpu_id);
-
- v3_start_time(info);
-
+#endif
+
while (1) {
-
- if (info->vm_info->run_state == VM_STOPPED) {
- info->core_run_state = CORE_STOPPED;
- break;
+ if (info->core_run_state == CORE_STOPPED) {
+ if (info->vcpu_id == 0) {
+ info->core_run_state = CORE_RUNNING;
+ } else {
+
+ PrintDebug(info->vm_info, info, "VMX core %u: Waiting for core initialization\n", info->vcpu_id);
+
+ V3_NO_WORK(info);
+
+ while (info->core_run_state == CORE_STOPPED) {
+
+ if (info->vm_info->run_state == VM_STOPPED) {
+ // The VM was stopped before this core was initialized.
+ return 0;
+ }
+
+ V3_STILL_NO_WORK(info);
+ //PrintDebug(info->vm_info, info, "VMX core %u: still waiting for INIT\n",info->vcpu_id);
+ }
+
+ V3_HAVE_WORK_AGAIN(info);
+
+ PrintDebug(info->vm_info, info, "VMX core %u initialized\n", info->vcpu_id);
+
+ // We'll be paranoid about race conditions here
+ v3_wait_at_barrier(info);
+ }
+
+
+ PrintDebug(info->vm_info, info, "VMX core %u: I am starting at CS=0x%x (base=0x%p, limit=0x%x), RIP=0x%p\n",
+ info->vcpu_id, info->segments.cs.selector, (void *)(info->segments.cs.base),
+ info->segments.cs.limit, (void *)(info->rip));
+
+
+ PrintDebug(info->vm_info, info, "VMX core %u: Launching VMX VM on logical core %u\n", info->vcpu_id, info->pcpu_id);
+
+ v3_start_time(info);
+
+
+ if (info->vm_info->run_state == VM_STOPPED) {
+ info->core_run_state = CORE_STOPPED;
+ break;
+ }
}
-
+
+
+#ifdef V3_CONFIG_PMU_TELEMETRY
+ v3_pmu_telemetry_start(info);
+#endif
+
+#ifdef V3_CONFIG_PWRSTAT_TELEMETRY
+ v3_pwrstat_telemetry_start(info);
+#endif
+
+
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(info->vm_info, info, "VMX core %u: VMX ERROR!!\n", info->vcpu_id);
v3_print_guest_state(info);
- V3_Print("VMX core %u\n", info->vcpu_id);
+ V3_Print(info->vm_info, info, "VMX core %u\n", info->vcpu_id);
linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
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(info->vm_info, info, "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_Print(info->vm_info, info, "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);
}
/*
if ((info->num_exits % 5000) == 0) {
- V3_Print("VMX Exit number %d\n", (uint32_t)info->num_exits);
+ V3_Print(info->vm_info, info, "VMX Exit number %d\n", (uint32_t)info->num_exits);
}
*/
}
+#ifdef V3_CONFIG_PMU_TELEMETRY
+ v3_pmu_telemetry_end(info);
+#endif
+
+#ifdef V3_CONFIG_PWRSTAT_TELEMETRY
+ v3_pwrstat_telemetry_end(info);
+#endif
+
return 0;
}
v3_cpuid(0x1, &eax, &ebx, &ecx, &edx);
- PrintDebug("ECX: 0x%x\n", ecx);
+ PrintDebug(VM_NONE, VCORE_NONE, "ECX: 0x%x\n", ecx);
if (ecx & CPUID_1_ECX_VTXFLAG) {
v3_get_msr(VMX_FEATURE_CONTROL_MSR, &(feature_msr.hi), &(feature_msr.lo));
- PrintDebug("MSRREGlow: 0x%.8x\n", feature_msr.lo);
+ PrintDebug(VM_NONE, VCORE_NONE, "MSRREGlow: 0x%.8x\n", feature_msr.lo);
if ((feature_msr.lo & CPUID_VMX_FEATURES) != CPUID_VMX_FEATURES) {
- PrintDebug("VMX is locked -- enable in the BIOS\n");
+ PrintDebug(VM_NONE, VCORE_NONE, "VMX is locked -- enable in the BIOS\n");
return 0;
}
} else {
- PrintDebug("VMX not supported on this cpu\n");
+ PrintDebug(VM_NONE, VCORE_NONE, "VMX not supported on this cpu\n");
return 0;
}
if (v3_mach_type == V3_INVALID_CPU) {
if (v3_init_vmx_hw(&hw_info) == -1) {
- PrintError("Could not initialize VMX hardware features on cpu %d\n", cpu_id);
+ PrintError(VM_NONE, VCORE_NONE, "Could not initialize VMX hardware features on cpu %d\n", cpu_id);
return;
}
}
if (vmx_on(vmx_on_region) == VMX_SUCCESS) {
- V3_Print("VMX Enabled\n");
+ V3_Print(VM_NONE, VCORE_NONE, "VMX Enabled\n");
host_vmcs_ptrs[cpu_id] = vmx_on_region;
} else {
- V3_Print("VMX already enabled\n");
+ V3_Print(VM_NONE, VCORE_NONE, "VMX already enabled\n");
V3_FreePages((void *)vmx_on_region, 1);
}
- PrintDebug("VMXON pointer: 0x%p\n", (void *)host_vmcs_ptrs[cpu_id]);
+ PrintDebug(VM_NONE, VCORE_NONE, "VMXON pointer: 0x%p\n", (void *)host_vmcs_ptrs[cpu_id]);
{
struct vmx_sec_proc_ctrls sec_proc_ctrls;
sec_proc_ctrls.value = v3_vmx_get_ctrl_features(&(hw_info.sec_proc_ctrls));
if (sec_proc_ctrls.enable_ept == 0) {
- V3_Print("VMX EPT (Nested) Paging not supported\n");
+ V3_Print(VM_NONE, VCORE_NONE, "VMX EPT (Nested) Paging not supported\n");
v3_cpu_types[cpu_id] = V3_VMX_CPU;
} else if (sec_proc_ctrls.unrstrct_guest == 0) {
- V3_Print("VMX EPT (Nested) Paging supported\n");
+ V3_Print(VM_NONE, VCORE_NONE, "VMX EPT (Nested) Paging supported\n");
v3_cpu_types[cpu_id] = V3_VMX_EPT_CPU;
} else {
- V3_Print("VMX EPT (Nested) Paging + Unrestricted guest supported\n");
+ V3_Print(VM_NONE, VCORE_NONE, "VMX EPT (Nested) Paging + Unrestricted guest supported\n");
v3_cpu_types[cpu_id] = V3_VMX_EPT_UG_CPU;
}
}
v3_cpu_types[cpu_id] = V3_INVALID_CPU;
if (host_vmcs_ptrs[cpu_id] != 0) {
- V3_Print("Disabling VMX\n");
+ V3_Print(VM_NONE, VCORE_NONE, "Disabling VMX\n");
if (vmx_off() != VMX_SUCCESS) {
- PrintError("Error executing VMXOFF\n");
+ PrintError(VM_NONE, VCORE_NONE, "Error executing VMXOFF\n");
}
V3_FreePages((void *)host_vmcs_ptrs[cpu_id], 1);
