lots of changes...

[palacios.git] / palacios / src / palacios / svm_handler.c

diff --git a/palacios/src/palacios/svm_handler.c b/palacios/src/palacios/svm_handler.c
index 46b4fa2..6f58b7c 100644 (file)
--- a/palacios/src/palacios/svm_handler.c
+++ b/palacios/src/palacios/svm_handler.c
@@ -22,32 +22,43 @@ int handle_svm_exit(struct guest_info * info) {
   info->rip = guest_state->rip;
   info->vm_regs.rsp = guest_state->rsp;
   info->vm_regs.rax = guest_state->rax;
-  info->vm_regs.rsp = guest_state->rsp;
+  info->vm_regs.rsp = guest_state->rsp;  
 
 
+  exit_code = guest_ctrl->exit_code;
+ 
+  PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
+  // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
 
-  
 
+  // PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); 
+  //PrintDebug("RIP: %x\n", guest_state->rip);
 
-  exit_code = guest_ctrl->exit_code;
   
-  // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
-
+  //PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
   
   if (exit_code == VMEXIT_IOIO) {
     struct svm_io_info * io_info = (struct svm_io_info *)&(guest_ctrl->exit_info1);
     
     if (io_info->type == 0) {
       if (io_info->str) {
-       handle_svm_io_outs(info);
+       if (handle_svm_io_outs(info) == -1 ) {
+         return -1;
+       }
       } else {
-       handle_svm_io_out(info);
+       if (handle_svm_io_out(info) == -1) {
+         return -1;
+       }
       }
     } else {
       if (io_info->str) {
-       handle_svm_io_ins(info);
+       if (handle_svm_io_ins(info) == -1) {
+         return -1;
+       }
       } else {
-       handle_svm_io_in(info);
+       if (handle_svm_io_in(info) == -1) {
+         return -1;
+       }
       }
     }
   } else if (exit_code == VMEXIT_CR0_WRITE) {
@@ -56,20 +67,65 @@ int handle_svm_exit(struct guest_info * info) {
     if (handle_cr0_write(info) == -1) {
       return -1;
     }
+  } else if (exit_code == VMEXIT_CR0_READ) {
+    PrintDebug("CR0 Read\n");
+
+    if (handle_cr0_read(info) == -1) {
+      return -1;
+    }
+  } else if (exit_code == VMEXIT_CR3_WRITE) {
+    PrintDebug("CR3 Write\n");
+
+    if (handle_cr3_write(info) == -1) {
+      return -1;
+    }    
+  } else if (exit_code == VMEXIT_CR3_READ) {
+    PrintDebug("CR3 Read\n");
+
+    if (handle_cr3_read(info) == -1) {
+      return -1;
+    }
+
+  } else if (exit_code == VMEXIT_EXCP14) {
+    addr_t fault_addr = guest_ctrl->exit_info2;
+    pf_error_t * error_code = (pf_error_t *)&(guest_ctrl->exit_info1);
+    
+    PrintDebug("PageFault at %x (error=%d)\n", fault_addr, *error_code);
+
+  
+
+    if (handle_shadow_pagefault(info, fault_addr, *error_code) == -1) {
+      return -1;
+    }
+
     /*
-  } else if (( (exit_code == VMEXIT_CR3_READ)  ||
-              (exit_code == VMEXIT_CR3_WRITE) ||
-              (exit_code == VMEXIT_INVLPG)    ||
-              (exit_code == VMEXIT_INVLPGA)   || 
-              (exit_code == VMEXIT_EXCP14)) && 
-            (info->page_mode == SHADOW_PAGING)) {
-    handle_shadow_paging(info);
+      } else if (( (exit_code == VMEXIT_CR3_READ)  ||
+      (exit_code == VMEXIT_CR3_WRITE) ||
+      (exit_code == VMEXIT_INVLPG)    ||
+      (exit_code == VMEXIT_INVLPGA)   || 
+      (exit_code == VMEXIT_EXCP14)) && 
+      (info->page_mode == SHADOW_PAGING)) {
+      handle_shadow_paging(info);
     */
+    
+  } else if (exit_code == VMEXIT_INTR) {
+
+    //    handle_svm_intr(info);
+
+  } else if (exit_code == VMEXIT_HLT) {
+    PrintDebug("Guest halted\n");
+    return -1;
   } else {
-    addr_t rip_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.selector);
+    addr_t rip_addr;
     char buf[15];
     addr_t host_addr;
 
+    if (info->cpu_mode == REAL) {
+      rip_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.selector);
+    } else {
+      rip_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.base);
+    }
+
 
     PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); 
     PrintDebug("RIP: %x\n", guest_state->rip);
@@ -108,18 +164,20 @@ int handle_svm_exit(struct guest_info * info) {
   // Update the low level state
 
   if (intr_pending(&(info->intr_state))) {
-    guest_ctrl->EVENTINJ.vector = get_intr_number(&(info->intr_state));
-    guest_ctrl->EVENTINJ.valid = 1;
- 
+
     switch (get_intr_type(&(info->intr_state))) {
     case EXTERNAL_IRQ:
+      guest_ctrl->EVENTINJ.vector = get_intr_number(&(info->intr_state));
+      guest_ctrl->EVENTINJ.valid = 1;
       guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXTERNAL_INTR;
+      
       break;
     case NMI:
       guest_ctrl->EVENTINJ.type = SVM_INJECTION_NMI;
       break;
     case EXCEPTION:
       guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION;
+      guest_ctrl->EVENTINJ.error_code = info->intr_state.excp_error_code;
       break;
     case SOFTWARE:
       guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
@@ -130,20 +188,31 @@ int handle_svm_exit(struct guest_info * info) {
 
     case INVALID_INTR: 
     default:
-      PrintDebug("Attempted to issue and invalid interrupt\n");
+      PrintDebug("Attempted to issue an invalid interrupt\n");
       return -1;
     }
 
+
+    PrintDebug("Injecting Interrupt %d (EIP=%x)\n", guest_ctrl->EVENTINJ.vector, info->rip);
+ 
+
     // IMPORTANT TODO
     // We need to figure out stack parameters....
-    // EVENTINJ.error_code
+
+    //EVENTINJ.error_code
 
   }
 
+
+
   guest_state->rax = info->vm_regs.rax;
   guest_state->rip = info->rip;
   guest_state->rsp = info->vm_regs.rsp;
 
+  if (exit_code == VMEXIT_INTR) {
+    PrintDebug("INTR ret IP = %x\n", guest_state->rip);
+  }
+
   return 0;
 }
 
@@ -163,3 +232,18 @@ int handle_shadow_paging(struct guest_info * info) {
 
 
 
+int handle_svm_intr(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));
+
+  //struct Interrupt_Info * int_info = &(guest_ctrl->exit_int_info);
+
+  //struct vmm_irq_hook * get_irq_hook(&(info->irq_map), int_info->vector);
+
+  PrintDebug("SVM Returned: Exit Code: %x\n",guest_ctrl->exit_code); 
+  PrintDebug("V_INTR_VECTOR: 0x%x\n", guest_ctrl->guest_ctrl.V_INTR_VECTOR);
+
+  while(1);
+    
+  return 0;
+}