#include <palacios/vmm_sprintf.h>
+#ifndef CONFIG_DEBUG_SVM
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
+#endif
+
+
uint32_t v3_last_exit;
// This is a global pointer to the host's VMCB
//
-
-
ctrl_area->svm_instrs.VMRUN = 1;
ctrl_area->svm_instrs.VMMCALL = 1;
ctrl_area->svm_instrs.VMLOAD = 1;
ctrl_area->instrs.CPUID = 1;
ctrl_area->instrs.HLT = 1;
+
+#ifdef CONFIG_TIME_VIRTUALIZE_TSC
+ ctrl_area->instrs.rdtsc = 1;
+ ctrl_area->svm_instrs.rdtscp = 1;
+#endif
+
// guest_state->cr0 = 0x00000001; // PE
/*
ctrl_area->instrs.NMI = 1;
- ctrl_area->instrs.SMI = 1;
+ ctrl_area->instrs.SMI = 0; // allow SMIs to run in guest
ctrl_area->instrs.INIT = 1;
ctrl_area->instrs.PAUSE = 1;
ctrl_area->instrs.shutdown_evts = 1;
static int update_irq_exit_state(struct guest_info * info) {
vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
+ // Fix for QEMU bug using EVENTINJ as an internal cache
+ guest_ctrl->EVENTINJ.valid = 0;
+
if ((info->intr_core_state.irq_pending == 1) && (guest_ctrl->guest_ctrl.V_IRQ == 0)) {
#ifdef CONFIG_DEBUG_INTERRUPTS
int v3_svm_enter(struct guest_info * info) {
vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
- ullong_t tmp_tsc;
addr_t exit_code = 0, exit_info1 = 0, exit_info2 = 0;
// Conditionally yield the CPU if the timeslice has expired
}
#endif
+ v3_update_timers(info);
+
+ /* If this guest is frequency-lagged behind host time, wait
+ * for the appropriate host time before resuming the guest. */
+ v3_adjust_time(info);
- rdtscll(tmp_tsc);
- v3_update_time(info, (tmp_tsc - info->time_state.cached_host_tsc));
- rdtscll(info->time_state.cached_host_tsc);
- // guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
+ guest_ctrl->TSC_OFFSET = v3_tsc_host_offset(&info->time_state);
//V3_Print("Calling v3_svm_launch\n");
-
+
v3_svm_launch((vmcb_t *)V3_PAddr(info->vmm_data), &(info->vm_regs), (vmcb_t *)host_vmcbs[info->cpu_id]);
-
- //V3_Print("SVM Returned: Exit Code: %x, guest_rip=%lx\n", (uint32_t)(guest_ctrl->exit_code), (unsigned long)guest_state->rip);
+ //V3_Print("SVM Returned: Exit Code: %x, guest_rip=%lx\n", (uint32_t)(guest_ctrl->exit_code), (unsigned long)guest_state->rip);
v3_last_exit = (uint32_t)(guest_ctrl->exit_code);
- //rdtscll(tmp_tsc);
- // v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
-
//PrintDebug("SVM Returned\n");
info->num_exits++;
-
-
-
// Save Guest state from VMCB
info->rip = guest_state->rip;
info->vm_regs.rsp = guest_state->rsp;
v3_yield_cond(info);
+
if (v3_handle_svm_exit(info, exit_code, exit_info1, exit_info2) != 0) {
PrintError("Error in SVM exit handler\n");
return -1;
}
-int v3_start_svm_guest(struct guest_info *info) {
+int v3_start_svm_guest(struct guest_info * info) {
// vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
// vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
+ PrintDebug("Starting SVM core %u\n", info->cpu_id);
+
+ if (info->cpu_id == 0) {
+ info->core_run_state = CORE_RUNNING;
+ info->vm_info->run_state = VM_RUNNING;
+ } else {
+ PrintDebug("SVM core %u: Waiting for core initialization\n", info->cpu_id);
+
+ while (info->core_run_state == CORE_STOPPED) {
+ v3_yield(info);
+ //PrintDebug("SVM core %u: still waiting for INIT\n",info->cpu_id);
+ }
+
+ PrintDebug("SVM core %u initialized\n", info->cpu_id);
+ }
+
+ PrintDebug("SVM core %u: I am starting at CS=0x%x (base=0x%p, limit=0x%x), RIP=0x%p\n",
+ info->cpu_id, info->segments.cs.selector, (void *)(info->segments.cs.base),
+ info->segments.cs.limit,(void *)(info->rip));
+
- PrintDebug("Launching SVM VM (vmcb=%p)\n", (void *)info->vmm_data);
+ PrintDebug("SVM core %u: Launching SVM VM (vmcb=%p)\n", info->cpu_id, (void *)info->vmm_data);
//PrintDebugVMCB((vmcb_t*)(info->vmm_data));
- info->vm_info->run_state = VM_RUNNING;
- rdtscll(info->yield_start_cycle);
-
+ v3_start_time(info);
while (1) {
if (v3_svm_enter(info) == -1) {
info->vm_info->run_state = VM_ERROR;
- V3_Print("SVM ERROR!!\n");
+ V3_Print("SVM core %u: SVM ERROR!!\n", info->cpu_id);
v3_print_guest_state(info);
- V3_Print("SVM Exit Code: %p\n", (void *)(addr_t)guest_ctrl->exit_code);
+ V3_Print("SVM core %u: SVM Exit Code: %p\n", info->cpu_id, (void *)(addr_t)guest_ctrl->exit_code);
- V3_Print("exit_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
- V3_Print("exit_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
+ V3_Print("SVM core %u: exit_info1 low = 0x%.8x\n", info->cpu_id, *(uint_t*)&(guest_ctrl->exit_info1));
+ V3_Print("SVM core %u: exit_info1 high = 0x%.8x\n", info->cpu_id, *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
- V3_Print("exit_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
- V3_Print("exit_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
+ V3_Print("SVM core %u: exit_info2 low = 0x%.8x\n", info->cpu_id, *(uint_t*)&(guest_ctrl->exit_info2));
+ V3_Print("SVM core %u: exit_info2 high = 0x%.8x\n", info->cpu_id, *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
v3_gva_to_hva(info, linear_addr, &host_addr);
}
- V3_Print("Host Address of rip = 0x%p\n", (void *)host_addr);
+ V3_Print("SVM core %u: Host Address of rip = 0x%p\n", info->cpu_id, (void *)host_addr);
- V3_Print("Instr (15 bytes) at %p:\n", (void *)host_addr);
+ V3_Print("SVM core %u: Instr (15 bytes) at %p:\n", info->cpu_id, (void *)host_addr);
v3_dump_mem((uint8_t *)host_addr, 15);
v3_print_stack(info);
*/
}
+
+ // Need to take down the other cores on error...
+
return 0;
}
