X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm_handler.c;h=10d3af6be2b2da0feab1aeac4aa7162b8ecd4805;hb=8a6d2dbc1b6d593cab383bb04f3fe778949376b2;hp=fed7b79a7bcdb39a80149ee3c751c0d2db66a4bd;hpb=a109eb919a162bd7de58d62020801bc2e633be50;p=palacios.git

diff --git a/palacios/src/palacios/svm_handler.c b/palacios/src/palacios/svm_handler.c
index fed7b79..10d3af6 100644
--- a/palacios/src/palacios/svm_handler.c
+++ b/palacios/src/palacios/svm_handler.c
@@ -1,9 +1,11 @@
 #include <palacios/svm_handler.h>
 #include <palacios/vmm.h>
-#include <palacios/svm_ctrl_regs.h>
+#include <palacios/vm_guest_mem.h>
+#include <palacios/vmm_decoder.h>
+#include <palacios/vmm_ctrl_regs.h>
 #include <palacios/svm_io.h>
-
-extern struct vmm_os_hooks * os_hooks;
+#include <palacios/svm_halt.h>
+#include <palacios/vmm_intr.h>
 
 
 int handle_svm_exit(struct guest_info * info) {
@@ -19,40 +21,59 @@ 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->cpl = guest_state->cpl;
 
-  PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); 
-  PrintDebug("RIP: %x\n", guest_state->rip);
-  
+
+  info->ctrl_regs.cr0 = guest_state->cr0;
+  info->ctrl_regs.cr2 = guest_state->cr2;
+  info->ctrl_regs.cr3 = guest_state->cr3;
+  info->ctrl_regs.cr4 = guest_state->cr4;
+  info->ctrl_regs.cr8 = guest_ctrl->guest_ctrl.V_TPR;
+  info->ctrl_regs.rflags = guest_state->rflags;
+
+  get_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
 
 
   exit_code = guest_ctrl->exit_code;
-  
+ 
+
+  // Disable printing io exits due to bochs debug messages
+  //if (!((exit_code == VMEXIT_IOIO) && ((ushort_t)(guest_ctrl->exit_info1 >> 16) == 0x402))) {
+
+  PrintDebug("SVM Returned: Exit Code: 0x%x \t\t(tsc=%ul)\n",exit_code, (uint_t)info->time_state.guest_tsc); 
+    //  }
   // PrintDebugVMCB((vmcb_t*)(info->vmm_data));
-  PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
 
-  PrintDebug("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
-  PrintDebug("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
 
-  PrintDebug("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
-  PrintDebug("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
+  // PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); 
+  //PrintDebug("RIP: %x\n", guest_state->rip);
 
   
+  //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) {
@@ -61,38 +82,207 @@ 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 (info->shdw_pg_mode == SHADOW_PAGING) {
+      if (handle_shadow_pagefault(info, fault_addr, *error_code) == -1) {
+	return -1;
+      }
+    } else {
+      PrintDebug("Page fault in un implemented paging mode\n");
+      return -1;
+    }
+
+  } else if (exit_code == VMEXIT_INVLPG) {
+    if (info->shdw_pg_mode == SHADOW_PAGING) {
+      PrintDebug("Invlpg\n");
+      if (handle_shadow_invlpg(info) == -1) {
+	return -1;
+      }
+    }
+   
+    /*
+      (exit_code == VMEXIT_INVLPGA)   || 
+    */
+    
+  } else if (exit_code == VMEXIT_INTR) {
+
+    //    handle_svm_intr(info);
+
+  } else if (exit_code == VMEXIT_SMI) { 
+
+    //   handle_svm_smi(info); // ignored for now
+
+  } else if (exit_code == VMEXIT_HLT) {
+    PrintDebug("Guest halted\n");
+    if (handle_svm_halt(info) == -1) {
+      return -1;
+    }
+  } else {
+    addr_t rip_addr;
+    char buf[15];
+    addr_t host_addr;
+
+
+    rip_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
+
+
+
+    PrintDebug("SVM Returned:(VMCB=%x)\n", info->vmm_data); 
+    PrintDebug("RIP: %x\n", guest_state->rip);
+    PrintDebug("RIP Linear: %x\n", rip_addr);
+    
+    PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
+    
+    PrintDebug("io_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
+    PrintDebug("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
+    
+    PrintDebug("io_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
+    PrintDebug("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
+
+    
+
+    if (info->mem_mode == PHYSICAL_MEM) {
+      if (guest_pa_to_host_pa(info, guest_state->rip, &host_addr) == -1) {
+	PrintDebug("Could not translate guest_state->rip to host address\n");
+	return -1;
+      }
+    } else if (info->mem_mode == VIRTUAL_MEM) {
+      if (guest_va_to_host_pa(info, guest_state->rip, &host_addr) == -1) {
+	PrintDebug("Could not translate guest_state->rip to host address\n");
+	return -1;
+      }
+    } else {
+      PrintDebug("Invalid memory mode\n");
+      return -1;
+    }
+
+    PrintDebug("Host Address of rip = 0x%x\n", host_addr);
+
+    memset(buf, 0, 15);
+    
+    PrintDebug("Reading from 0x%x in guest\n", rip_addr);
+    
+    if (info->mem_mode == PHYSICAL_MEM) {
+      read_guest_pa_memory(info, rip_addr, 15, buf);
+    } else {
+      read_guest_va_memory(info, rip_addr, 15, buf);
+    }
+
+    PrintTraceMemDump(buf, 15);
+
+    while(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);
   }
 
 
   // Update the low level state
-  guest_state->rax = info->vm_regs.rax;
-  guest_state->rip = info->rip;
-  guest_state->rsp = info->vm_regs.rsp;
 
-  return 0;
-}
+  if (intr_pending(info)) {
 
+    switch (get_intr_type(info)) {
+    case EXTERNAL_IRQ: 
+      {
+	uint_t irq = get_intr_number(info);
+	/*	
+	  guest_ctrl->EVENTINJ.vector = irq;
+	  guest_ctrl->EVENTINJ.valid = 1;
+	  guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXTERNAL_INTR;
+	*/
+	
+	guest_ctrl->guest_ctrl.V_IRQ = 1;
+	guest_ctrl->guest_ctrl.V_INTR_VECTOR = irq;
+	guest_ctrl->guest_ctrl.V_IGN_TPR = 1;
+	guest_ctrl->guest_ctrl.V_INTR_PRIO = 0xf;
 
+	PrintDebug("Injecting Interrupt %d (EIP=%x)\n", guest_ctrl->guest_ctrl.V_INTR_VECTOR, info->rip);
 
+	injecting_intr(info, irq, EXTERNAL_IRQ);
+	
+	break;
+      }
+    case NMI:
+      guest_ctrl->EVENTINJ.type = SVM_INJECTION_NMI;
+      break;
+    case EXCEPTION:
+      {
+	uint_t excp = get_intr_number(info);
 
-int handle_shadow_paging(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));
+	guest_ctrl->EVENTINJ.type = SVM_INJECTION_EXCEPTION;
+	
+	if (info->intr_state.excp_error_code) {
+	  guest_ctrl->EVENTINJ.error_code = info->intr_state.excp_error_code;
+	  guest_ctrl->EVENTINJ.ev = 1;
+	  PrintDebug("Injecting error code %x\n", guest_ctrl->EVENTINJ.error_code);
+	}
+	
+	guest_ctrl->EVENTINJ.vector = excp;
+	
+	guest_ctrl->EVENTINJ.valid = 1;
+	PrintDebug("Injecting Interrupt %d (EIP=%x)\n", guest_ctrl->EVENTINJ.vector, info->rip);
+	injecting_intr(info, excp, EXCEPTION);
+	break;
+      }
+    case SOFTWARE_INTR:
+      guest_ctrl->EVENTINJ.type = SVM_INJECTION_SOFT_INTR;
+      break;
+    case VIRTUAL_INTR:
+      guest_ctrl->EVENTINJ.type = SVM_INJECTION_VIRTUAL_INTR;
+      break;
 
-  if (guest_ctrl->exit_code == VMEXIT_CR3_READ) {
+    case INVALID_INTR: 
+    default:
+      PrintDebug("Attempted to issue an invalid interrupt\n");
+      return -1;
+    }
 
   }
 
-  return 0;
-}
 
+  guest_state->cr0 = info->ctrl_regs.cr0;
+  guest_state->cr2 = info->ctrl_regs.cr2;
+  guest_state->cr3 = info->ctrl_regs.cr3;
+  guest_state->cr4 = info->ctrl_regs.cr4;
+  guest_ctrl->guest_ctrl.V_TPR = info->ctrl_regs.cr8 & 0xff;
+  guest_state->rflags = info->ctrl_regs.rflags;
+
+
+  guest_state->cpl = info->cpl;
 
+  guest_state->rax = info->vm_regs.rax;
+  guest_state->rip = info->rip;
+  guest_state->rsp = info->vm_regs.rsp;
+
+
+  set_vmcb_segments((vmcb_t*)(info->vmm_data), &(info->segments));
+
+  if (exit_code == VMEXIT_INTR) {
+    PrintDebug("INTR ret IP = %x\n", guest_state->rip);
+  }
+
+  return 0;
+}