architecture independence work

[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 55b75fb..fed3d25 100644 (file)
--- a/palacios/src/palacios/svm_handler.c
+++ b/palacios/src/palacios/svm_handler.c
@@ -2,10 +2,11 @@
 #include <palacios/vmm.h>
 #include <palacios/vm_guest_mem.h>
 #include <palacios/vmm_emulate.h>
-#include <palacios/svm_ctrl_regs.h>
+#include <palacios/vmm_ctrl_regs.h>
 #include <palacios/svm_io.h>
 #include <palacios/vmm_intr.h>
 
+
 extern struct vmm_os_hooks * os_hooks;
 
 
@@ -25,6 +26,16 @@ int handle_svm_exit(struct guest_info * info) {
   info->vm_regs.rsp = guest_state->rsp;  
 
 
+  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;
  
   PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
@@ -73,18 +84,41 @@ int handle_svm_exit(struct guest_info * info) {
     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);
@@ -93,11 +127,15 @@ int handle_svm_exit(struct guest_info * info) {
     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;
 
 
+    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);
@@ -136,14 +174,12 @@ int handle_svm_exit(struct guest_info * info) {
 
   if (intr_pending(&(info->intr_state))) {
 
-    guest_ctrl->EVENTINJ.vector = get_intr_number(&(info->intr_state));
-    guest_ctrl->EVENTINJ.valid = 1;
-
-    PrintDebug("Injecting Interrupt %d\n", guest_ctrl->EVENTINJ.vector);
- 
     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;
@@ -165,6 +201,10 @@ int handle_svm_exit(struct guest_info * info) {
       return -1;
     }
 
+
+    PrintDebug("Injecting Interrupt %d (EIP=%x)\n", guest_ctrl->EVENTINJ.vector, info->rip);
+ 
+
     // IMPORTANT TODO
     // We need to figure out stack parameters....
 
@@ -172,10 +212,26 @@ int handle_svm_exit(struct guest_info * info) {
 
   }
 
+
+  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->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;
 }
 
@@ -205,19 +261,8 @@ int handle_svm_intr(struct guest_info * info) {
 
   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;
 }