-#include <palacios/vmm_direct_paging.h>
-
-// Inline handler functions for each cpu mode
-#include "vmm_direct_paging_32.h"
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Steven Jaconette <stevenjaconette2007@u.northwestern.edu>
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Steven Jaconette <stevenjaconette2007@u.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+#include <palacios/vmm_direct_paging.h>
#include <palacios/vmm_paging.h>
#include <palacios/vmm.h>
#include <palacios/vm_guest_mem.h>
#include <palacios/vm_guest.h>
-pde32_t * v3_create_direct_passthrough_pts(struct guest_info * info) {
- v3_vm_cpu_mode_t mode = v3_get_cpu_mode(info);
- switch(mode) {
- case REAL:
- //break;
- case PROTECTED:
- PrintError("ABC\n");
- return v3_create_direct_passthrough_pts_32(info);
- case PROTECTED_PAE:
- break;
- case LONG:
- break;
- case LONG_32_COMPAT:
- break;
- default:
- PrintError("Unknown CPU Mode\n");
- break;
- }
- return NULL;
+
+#ifndef DEBUG_NESTED_PAGING
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
+#endif
+
+
+static addr_t create_generic_pt_page() {
+ void * page = 0;
+ page = V3_VAddr(V3_AllocPages(1));
+ memset(page, 0, PAGE_SIZE);
+
+ return (addr_t)page;
+}
+
+// Inline handler functions for each cpu mode
+#include "vmm_direct_paging_32.h"
+#include "vmm_direct_paging_32pae.h"
+#include "vmm_direct_paging_64.h"
+
+
+addr_t v3_create_direct_passthrough_pts(struct guest_info * info) {
+ return create_generic_pt_page();
}
-int v3_handle_shadow_pagefault_physical_mode(struct guest_info * info, addr_t fault_addr, pf_error_t error_code) {
- v3_vm_cpu_mode_t mode = v3_get_cpu_mode(info);
- switch(mode) {
- case REAL:
- // break;
- case PROTECTED:
- return v3_handle_shadow_pagefault_physical_mode_32(info, fault_addr, error_code);
- case PROTECTED_PAE:
- break;
- case LONG:
- break;
- case LONG_32_COMPAT:
- break;
- default:
- PrintError("Unknown CPU Mode\n");
- break;
- }
- return -1;
+int v3_handle_passthrough_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code) {
+ v3_vm_cpu_mode_t mode = v3_get_cpu_mode(info);
+
+ switch(mode) {
+ case REAL:
+ case PROTECTED:
+ return handle_passthrough_pagefault_32(info, fault_addr, error_code);
+
+ case PROTECTED_PAE:
+ case LONG:
+ case LONG_32_COMPAT:
+ // Long mode will only use 32PAE page tables...
+ return handle_passthrough_pagefault_32pae(info, fault_addr, error_code);
+
+ default:
+ PrintError("Unknown CPU Mode\n");
+ break;
+ }
+ return -1;
+}
+
+
+
+int v3_handle_nested_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code) {
+ // THIS IS VERY BAD
+ v3_vm_cpu_mode_t mode = LONG;
+
+
+ PrintDebug("Nested PageFault: fault_addr=%p, error_code=%u\n",(void*)fault_addr, *(uint_t *)&error_code);
+
+ switch(mode) {
+ case REAL:
+ case PROTECTED:
+ return handle_passthrough_pagefault_32(info, fault_addr, error_code);
+
+ case PROTECTED_PAE:
+ return handle_passthrough_pagefault_32pae(info, fault_addr, error_code);
+
+ case LONG:
+ case LONG_32_COMPAT:
+ return handle_passthrough_pagefault_64(info, fault_addr, error_code);
+
+ default:
+ PrintError("Unknown CPU Mode\n");
+ break;
+ }
+ return -1;
}
+
