/* Gets the base address needed for a Page Table entry */
-
#define PAGE_BASE_ADDR(x) ((x) >> 12)
#define PAGE_BASE_ADDR_4KB(x) ((x) >> 12)
#define PAGE_BASE_ADDR_2MB(x) ((x) >> 21)
/* Page Table Flag Values */
#define PT32_HOOK 0x1
+#define PT32_GUEST_PT 0x2
int v3_translate_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr);
int v3_translate_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr);
-int v3_translate_host_pt_32(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr);
-int v3_translate_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr);
-int v3_translate_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr);
+int v3_translate_host_pt_32(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr);
+int v3_translate_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr);
+int v3_translate_host_pt_64(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr);
-int v3_find_host_pt_32_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr);
-int v3_find_host_pt_32pae_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr);
-int v3_find_host_pt_64_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr);
+int v3_find_host_pt_32_page(struct guest_info * info, v3_reg_t host_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa);
+int v3_find_host_pt_32pae_page(struct guest_info * info, v3_reg_t host_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa);
+int v3_find_host_pt_64_page(struct guest_info * info, v3_reg_t host_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa);
int v3_find_guest_pt_32_page(struct guest_info * info, v3_reg_t guest_cr3,
page_type_t type, addr_t vaddr,
- addr_t * page_addr);
+ addr_t * page_ptr, addr_t * page_pa);
int v3_find_guest_pt_32pae_page(struct guest_info * info, v3_reg_t guest_cr3,
page_type_t type, addr_t vaddr,
- addr_t * page_addr);
+ addr_t * page_ptr, addr_t * page_pa);
int v3_find_guest_pt_64_page(struct guest_info * info, v3_reg_t guest_cr3,
page_type_t type, addr_t vaddr,
- addr_t * page_addr);
+ addr_t * page_ptr, addr_t * page_pa);
pt_access_status_t inline v3_can_access_pde32(pde32_t * pde, addr_t addr, pf_error_t access_type);
pt_access_status_t inline v3_can_access_pte32(pte32_t * pte, addr_t addr, pf_error_t access_type);
pt_access_status_t inline v3_can_access_pte64(pte64_t * pte, addr_t addr, pf_error_t access_type);
-int v3_check_host_pt_32(v3_reg_t host_cr3, addr_t vaddr,
+int v3_check_host_pt_32(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
pf_error_t access_type, pt_access_status_t * access_status);
-int v3_check_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr,
+int v3_check_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
pf_error_t access_type, pt_access_status_t * access_status);
-int v3_check_host_pt_64(v3_reg_t host_cr3, addr_t vaddr,
+int v3_check_host_pt_64(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
pf_error_t access_type, pt_access_status_t * access_status);
int v3_check_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
pf_error_t access_type, pt_access_status_t * access_status);
-int v3_drill_host_pt_32(v3_reg_t host_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_drill_host_pt_32(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data);
-int v3_drill_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_drill_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data);
-int v3_drill_host_pt_64(v3_reg_t host_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_drill_host_pt_64(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data);
int v3_drill_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data);
int v3_drill_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data);
int v3_drill_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data);
-int v3_walk_host_pt_32(v3_reg_t host_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
+int v3_walk_host_pt_32(struct guest_info * info, v3_reg_t host_cr3,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
void * private_data);
-int v3_walk_host_pt_32pae(v3_reg_t host_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
+int v3_walk_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
void * private_data);
-int v3_walk_host_pt_64(v3_reg_t host_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
+int v3_walk_host_pt_64(struct guest_info * info, v3_reg_t host_cr3,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
void * private_data);
int v3_walk_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
void * private_data);
int v3_walk_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
void * private_data);
int v3_walk_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_va, addr_t page_pa, void * private_data),
void * private_data);
-void PrintPTEntry(page_type_t type, addr_t vaddr, void * entry);
-void PrintHostPageTables(v3_vm_cpu_mode_t cpu_mode, addr_t cr3);
+void PrintPTEntry(struct guest_info * info, page_type_t type, addr_t vaddr, void * entry);
+void PrintHostPageTables(struct guest_info * info, addr_t cr3);
void PrintGuestPageTables(struct guest_info * info, addr_t cr3);
-void PrintHostPageTree(v3_vm_cpu_mode_t cpu_mode, addr_t virtual_addr, addr_t cr3);
+void PrintHostPageTree(struct guest_info * info, addr_t virtual_addr, addr_t cr3);
void PrintGuestPageTree(struct guest_info * info, addr_t virtual_addr, addr_t cr3);
v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
- PrintDebug("CPUID_FEATURE_IDS_ecx=0x%p\n", (void *)ecx);
+ PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx);
if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
PrintDebug("SVM Not Available\n");
v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
- PrintDebug("CPUID_FEATURE_IDS_edx=0x%p\n", (void *)edx);
+ PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx);
if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
PrintDebug("SVM BIOS Disabled, not unlockable\n");
PrintDebug("SVM is available and enabled.\n");
v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
-
- PrintDebug("CPUID_FEATURE_IDS_edx=0x%p\n", (void *)edx);
+ PrintDebug("CPUID_FEATURE_IDS_eax=%p\n", (void *)eax);
+ PrintDebug("CPUID_FEATURE_IDS_ebx=%p\n", (void *)ebx);
+ PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx);
+ PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx);
+
if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
PrintDebug("SVM Nested Paging not supported\n");
default: {
addr_t rip_addr;
- uchar_t buf[15];
- addr_t host_addr;
PrintDebug("Unhandled SVM Exit: %s\n", vmexit_code_to_str(exit_code));
PrintError("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_va(info, guest_state->rip, &host_addr) == -1) {
- PrintError("Could not translate guest_state->rip to host address\n");
- return -1;
- }
- } else if (info->mem_mode == VIRTUAL_MEM) {
- if (guest_va_to_host_va(info, guest_state->rip, &host_addr) == -1) {
- PrintError("Could not translate guest_state->rip to host address\n");
- return -1;
- }
- } else {
- PrintError("Invalid memory mode\n");
- return -1;
- }
-
- PrintError("Host Address of rip = 0x%p\n", (void *)host_addr);
-
- memset(buf, 0, 32);
-
- PrintError("Reading instruction stream in guest (addr=%p)\n", (void *)rip_addr);
-
- if (info->mem_mode == PHYSICAL_MEM) {
- read_guest_pa_memory(info, rip_addr - 16, 32, buf);
- } else {
- read_guest_va_memory(info, rip_addr - 16, 32, buf);
- }
-
- PrintDebug("16 bytes before Rip\n");
- PrintTraceMemDump(buf, 16);
- PrintDebug("Rip onward\n");
- PrintTraceMemDump(buf+16, 16);
-
return -1;
}
-static int translate_pt_32_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int translate_pt_32_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
addr_t * paddr = (addr_t *)private_data;
switch (type) {
}
}
-static int translate_pt_32pae_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int translate_pt_32pae_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
addr_t * paddr = (addr_t *)private_data;
switch (type) {
}
}
-static int translate_pt_64_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int translate_pt_64_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
addr_t * paddr = (addr_t *)private_data;
switch (type) {
}
-int v3_translate_host_pt_32(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
- return v3_drill_host_pt_32(host_cr3, vaddr, translate_pt_32_cb, paddr);
+int v3_translate_host_pt_32(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
+ return v3_drill_host_pt_32(info, host_cr3, vaddr, translate_pt_32_cb, paddr);
}
int v3_translate_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr) {
return v3_drill_guest_pt_32(info, guest_cr3, vaddr, translate_pt_32_cb, paddr);
}
-int v3_translate_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
- return v3_drill_host_pt_32pae(host_cr3, vaddr, translate_pt_32pae_cb, paddr);
+int v3_translate_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
+ return v3_drill_host_pt_32pae(info, host_cr3, vaddr, translate_pt_32pae_cb, paddr);
}
int v3_translate_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr) {
return v3_drill_guest_pt_32pae(info, guest_cr3, vaddr, translate_pt_32pae_cb, paddr);
}
-int v3_translate_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
- return v3_drill_host_pt_64(host_cr3, vaddr, translate_pt_64_cb, paddr);
+int v3_translate_host_pt_64(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, addr_t * paddr) {
+ return v3_drill_host_pt_64(info, host_cr3, vaddr, translate_pt_64_cb, paddr);
}
int v3_translate_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr, addr_t * paddr) {
return v3_drill_guest_pt_64(info, guest_cr3, vaddr, translate_pt_64_cb, paddr);
struct pt_find_data {
page_type_t type;
- addr_t * pt_page_addr;
+ addr_t * pt_page_ptr;
+ addr_t * pt_page_pa;
};
-static int find_pt_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int find_pt_cb(struct guest_info * info, page_type_t type, addr_t vaddr,
+ addr_t page_ptr, addr_t page_pa, void * private_data) {
struct pt_find_data * pt_data = (struct pt_find_data *)private_data;
+ PrintDebug("FIND_PT Type=%s, page_pa = %p\n",
+ v3_page_type_to_str(type),
+ (void *)page_pa);
+
if (type == pt_data->type) {
- *(pt_data->pt_page_addr) = page_ptr;
+ *(pt_data->pt_page_ptr) = page_ptr;
+ *(pt_data->pt_page_pa) = page_pa;
return 1;
}
}
-int v3_find_host_pt_32_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr) {
+int v3_find_host_pt_32_page(struct guest_info * info, v3_reg_t host_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa) {
struct pt_find_data data;
data.type = type;
- data.pt_page_addr = page_addr;
+ data.pt_page_ptr = page_ptr;
+ data.pt_page_pa = page_pa;
- return v3_drill_host_pt_32(host_cr3, vaddr, find_pt_cb, &data);
+ return v3_drill_host_pt_32(info, host_cr3, vaddr, find_pt_cb, &data);
}
-int v3_find_host_pt_32pae_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr) {
+int v3_find_host_pt_32pae_page(struct guest_info * info, v3_reg_t host_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa) {
struct pt_find_data data;
data.type = type;
- data.pt_page_addr = page_addr;
-
- return v3_drill_host_pt_32pae(host_cr3, vaddr, find_pt_cb, &data);
+ data.pt_page_ptr = page_ptr;
+ data.pt_page_pa = page_pa;
+
+ return v3_drill_host_pt_32pae(info, host_cr3, vaddr, find_pt_cb, &data);
}
-int v3_find_host_pt_64_page(v3_reg_t host_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr) {
+int v3_find_host_pt_64_page(struct guest_info * info, v3_reg_t host_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa) {
struct pt_find_data data;
data.type = type;
- data.pt_page_addr = page_addr;
-
- return v3_drill_host_pt_64(host_cr3, vaddr, find_pt_cb, &data);
+ data.pt_page_ptr = page_ptr;
+ data.pt_page_pa = page_pa;
+
+ return v3_drill_host_pt_64(info, host_cr3, vaddr, find_pt_cb, &data);
}
-int v3_find_guest_pt_32_page(struct guest_info * info, v3_reg_t guest_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr) {
+int v3_find_guest_pt_32_page(struct guest_info * info, v3_reg_t guest_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa) {
struct pt_find_data data;
data.type = type;
- data.pt_page_addr = page_addr;
+ data.pt_page_ptr = page_ptr;
+ data.pt_page_pa = page_pa;
return v3_drill_guest_pt_32(info, guest_cr3, vaddr, find_pt_cb, &data);
}
-int v3_find_guest_pt_32pae_page(struct guest_info * info, v3_reg_t guest_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr) {
+int v3_find_guest_pt_32pae_page(struct guest_info * info, v3_reg_t guest_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa) {
struct pt_find_data data;
data.type = type;
- data.pt_page_addr = page_addr;
+ data.pt_page_ptr = page_ptr;
+ data.pt_page_pa = page_pa;
return v3_drill_guest_pt_32pae(info, guest_cr3, vaddr, find_pt_cb, &data);
}
-int v3_find_guest_pt_64_page(struct guest_info * info, v3_reg_t guest_cr3, page_type_t type, addr_t vaddr, addr_t * page_addr) {
+int v3_find_guest_pt_64_page(struct guest_info * info, v3_reg_t guest_cr3, page_type_t type, addr_t vaddr,
+ addr_t * page_ptr, addr_t * page_pa) {
struct pt_find_data data;
data.type = type;
- data.pt_page_addr = page_addr;
+ data.pt_page_ptr = page_ptr;
+ data.pt_page_pa = page_pa;
return v3_drill_guest_pt_64(info, guest_cr3, vaddr, find_pt_cb, &data);
}
pt_access_status_t * access_status;
};
-static int check_pt_32_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int check_pt_32_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
struct pt_check_data * chk_data = (struct pt_check_data *)private_data;
switch (type) {
}
-static int check_pt_32pae_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int check_pt_32pae_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
struct pt_check_data * chk_data = (struct pt_check_data *)private_data;
switch (type) {
}
-static int check_pt_64_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int check_pt_64_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
struct pt_check_data * chk_data = (struct pt_check_data *)private_data;
switch (type) {
-int v3_check_host_pt_32(v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
+int v3_check_host_pt_32(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
struct pt_check_data access_data;
access_data.access_type = access_type;
access_data.access_status = access_status;
- return v3_drill_host_pt_32(host_cr3, vaddr, check_pt_32_cb, &access_data);
+ return v3_drill_host_pt_32(info, host_cr3, vaddr, check_pt_32_cb, &access_data);
}
-int v3_check_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
+int v3_check_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
struct pt_check_data access_data;
access_data.access_type = access_type;
access_data.access_status = access_status;
- return v3_drill_host_pt_32pae(host_cr3, vaddr, check_pt_32pae_cb, &access_data);
+ return v3_drill_host_pt_32pae(info, host_cr3, vaddr, check_pt_32pae_cb, &access_data);
}
-int v3_check_host_pt_64(v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
+int v3_check_host_pt_64(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr, pf_error_t access_type, pt_access_status_t * access_status) {
struct pt_check_data access_data;
access_data.access_type = access_type;
access_data.access_status = access_status;
- return v3_drill_host_pt_64(host_cr3, vaddr, check_pt_64_cb, &access_data);
+ return v3_drill_host_pt_64(info, host_cr3, vaddr, check_pt_64_cb, &access_data);
}
}
pt_access_status_t inline v3_can_access_pde64(pde64_t * pde, addr_t addr, pf_error_t access_type) {
- gen_pt_t * entry = (gen_pt_t *)&pde[PDE32_INDEX(addr)];
+ gen_pt_t * entry = (gen_pt_t *)&pde[PDE64_INDEX(addr)];
return can_access_pt_entry(entry, access_type);
}
}
-int v3_drill_host_pt_32(v3_reg_t host_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_drill_host_pt_32(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA(host_cr3);
addr_t host_pde_pa = CR3_TO_PDE32_PA(host_cr3);
addr_t page_pa = 0;
int ret;
- if ((ret = callback(PAGE_PD32, vaddr, (addr_t)host_pde, host_pde_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PD32, vaddr, (addr_t)host_pde, host_pde_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PD32;
}
case PT_ENTRY_NOT_PRESENT:
return -1;
case PT_ENTRY_LARGE_PAGE:
- if ((ret == callback(PAGE_4MB, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_4MB, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4MB;
}
return 0;
case PT_ENTRY_PAGE:
- if ((ret = callback(PAGE_PT32, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PT32, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PT32;
}
if (pte32_lookup(V3_VAddr((void *)host_pte_pa), vaddr, &page_pa) == PT_ENTRY_NOT_PRESENT) {
return -1;
} else {
- if ((ret = callback(PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)PAGE_BASE_ADDR(page_pa)), page_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)PAGE_BASE_ADDR(page_pa)), page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4KB;
}
return 0;
-int v3_drill_host_pt_32pae(v3_reg_t host_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_drill_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
pdpe32pae_t * host_pdpe = (pdpe32pae_t *)CR3_TO_PDPE32PAE_VA(host_cr3);
addr_t host_pdpe_pa = CR3_TO_PDPE32PAE_PA(host_cr3);
addr_t page_pa = 0;
int ret;
- if ((ret = callback(PAGE_PDP32PAE, vaddr, (addr_t)host_pdpe, host_pdpe_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PDP32PAE, vaddr, (addr_t)host_pdpe, host_pdpe_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PDP32PAE;
}
return -1;
case PT_ENTRY_PAGE:
- if ((ret = callback(PAGE_PD32PAE, vaddr, (addr_t)V3_VAddr((void *)host_pde_pa), host_pde_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PD32PAE, vaddr, (addr_t)V3_VAddr((void *)host_pde_pa), host_pde_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PD32PAE;
}
case PT_ENTRY_NOT_PRESENT:
return -1;
case PT_ENTRY_LARGE_PAGE:
- if ((ret == callback(PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_2MB;
}
return 0;
case PT_ENTRY_PAGE:
- if ((ret = callback(PAGE_PT32PAE, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PT32PAE, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PT32PAE;
}
if (pte32pae_lookup(V3_VAddr((void *)host_pte_pa), vaddr, &page_pa) == PT_ENTRY_NOT_PRESENT) {
return -1;
} else {
- if ((ret = callback(PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)PAGE_BASE_ADDR(page_pa)), page_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)PAGE_BASE_ADDR(page_pa)), page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4KB;
}
return 0;
}
-int v3_drill_host_pt_64(v3_reg_t host_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_drill_host_pt_64(struct guest_info * info, v3_reg_t host_cr3, addr_t vaddr,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
pml4e64_t * host_pmle = (pml4e64_t *)CR3_TO_PML4E64_VA(host_cr3);
addr_t host_pmle_pa = CR3_TO_PML4E64_PA(host_cr3);
addr_t page_pa = 0;
int ret;
- if ((ret = callback(PAGE_PML464, vaddr, (addr_t)host_pmle, host_pmle_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PML464, vaddr, (addr_t)host_pmle, host_pmle_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PML464;
}
return -1;
case PT_ENTRY_PAGE:
- if ((ret = callback(PAGE_PDP64, vaddr, (addr_t)V3_VAddr((void *)host_pdpe_pa), host_pdpe_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PDP64, vaddr, (addr_t)V3_VAddr((void *)host_pdpe_pa), host_pdpe_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PDP64;
}
case PT_ENTRY_NOT_PRESENT:
return -1;
case PT_ENTRY_LARGE_PAGE:
- if ((ret == callback(PAGE_1GB, vaddr, (addr_t)V3_VAddr((void *)host_pde_pa), host_pde_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_1GB, vaddr, (addr_t)V3_VAddr((void *)host_pde_pa), host_pde_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_1GB;
}
PrintError("1 Gigabyte Pages not supported\n");
return 0;
case PT_ENTRY_PAGE:
- if ((ret = callback(PAGE_PD64, vaddr, (addr_t)V3_VAddr((void *)host_pde_pa), host_pde_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PD64, vaddr, (addr_t)V3_VAddr((void *)host_pde_pa), host_pde_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PD64;
}
case PT_ENTRY_NOT_PRESENT:
return -1;
case PT_ENTRY_LARGE_PAGE:
- if ((ret == callback(PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_2MB;
}
return 0;
case PT_ENTRY_PAGE:
- if ((ret = callback(PAGE_PT64, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PT64, vaddr, (addr_t)V3_VAddr((void *)host_pte_pa), host_pte_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PT64;
}
if (pte64_lookup(V3_VAddr((void *)host_pte_pa), vaddr, &page_pa) == PT_ENTRY_NOT_PRESENT) {
return -1;
} else {
- if ((ret = callback(PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)PAGE_BASE_ADDR(page_pa)), page_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)PAGE_BASE_ADDR(page_pa)), page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4KB;
}
return 0;
int v3_drill_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
addr_t guest_pde_pa = CR3_TO_PDE32_PA(guest_cr3);
pde32_t * guest_pde = NULL;
int ret;
- if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t*)&guest_pde) == -1) {
+ if (guest_pa_to_host_va(info, guest_pde_pa, (addr_t *)&guest_pde) == -1) {
PrintError("Could not get virtual address of Guest PDE32 (PA=%p)\n",
(void *)guest_pde_pa);
return -1;
}
- if ((ret = callback(PAGE_PD32, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PD32, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PD32;
}
}
- if ((ret == callback(PAGE_4MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_4MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4MB;
}
return 0;
return -1;
}
- if ((ret = callback(PAGE_PT32, vaddr, (addr_t)guest_pte, guest_pte_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PT32, vaddr, (addr_t)guest_pte, guest_pte_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PT32;
}
return -1;
}
- if ((ret = callback(PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4KB;
}
return 0;
int v3_drill_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
addr_t guest_pdpe_pa = CR3_TO_PDPE32PAE_PA(guest_cr3);
pdpe32pae_t * guest_pdpe = 0;
return -1;
}
- if ((ret = callback(PAGE_PDP32PAE, vaddr, (addr_t)guest_pdpe, guest_pdpe_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PDP32PAE, vaddr, (addr_t)guest_pdpe, guest_pdpe_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PDP32PAE;
}
return -1;
}
- if ((ret = callback(PAGE_PD32PAE, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PD32PAE, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PD32PAE;
}
}
- if ((ret == callback(PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_2MB;
}
return 0;
return -1;
}
- if ((ret = callback(PAGE_PT32PAE, vaddr, (addr_t)guest_pte, guest_pte_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PT32PAE, vaddr, (addr_t)guest_pte, guest_pte_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PT32PAE;
}
return -1;
}
- if ((ret = callback(PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4KB;
}
return 0;
}
int v3_drill_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3, addr_t vaddr,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
addr_t guest_pml4_pa = CR3_TO_PML4E64_PA(guest_cr3);
pml4e64_t * guest_pmle = 0;
return -1;
}
- if ((ret = callback(PAGE_PML464, vaddr, (addr_t)guest_pmle, guest_pml4_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PML464, vaddr, (addr_t)guest_pmle, guest_pml4_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PML464;
}
return -1;
}
- if ((ret = callback(PAGE_PDP64, vaddr, (addr_t)guest_pdp, guest_pdpe_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PDP64, vaddr, (addr_t)guest_pdp, guest_pdpe_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PDP64;
}
}
- if ((ret == callback(PAGE_1GB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_1GB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_1GB;
}
PrintError("1 Gigabyte Pages not supported\n");
return -1;
}
- if ((ret = callback(PAGE_PD64, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_PD64, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_PD64;
}
}
- if ((ret == callback(PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ if ((ret == callback(info, PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_2MB;
}
return 0;
return -1;
}
- if ((ret = callback(PAGE_PT64, vaddr, (addr_t)guest_pte, guest_pte_pa, private_data) != 0)) {
+ if ((ret = callback(info, PAGE_PT64, vaddr, (addr_t)guest_pte, guest_pte_pa, private_data) != 0)) {
return (ret == -1) ? -1 : PAGE_PT64;
}
return -1;
}
- if ((ret = callback(PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
+ if ((ret = callback(info, PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
return (ret == -1) ? -1 : PAGE_4KB;
}
int v3_walk_guest_pt_32(struct guest_info * info, v3_reg_t guest_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
addr_t guest_pde_pa = CR3_TO_PDE32_PA(guest_cr3);
pde32_t * guest_pde = NULL;
int i, j;
addr_t vaddr = 0;
+ int ret = 0;
if (!callback) {
PrintError("Call back was not specified\n");
return -1;
}
- callback(PAGE_PD32, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data);
+ if ((ret = callback(info, PAGE_PD32, vaddr, (addr_t)guest_pde, guest_pde_pa, private_data)) != 0) {
+ return ret;
+ }
for (i = 0; i < MAX_PDE32_ENTRIES; i++) {
if (guest_pde[i].present) {
large_page_va = 0;
}
- callback(PAGE_4MB, vaddr, large_page_va, large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_4MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_4MB;
} else {
return -1;
}
- callback(PAGE_PT32, vaddr, (addr_t)tmp_pte, pte_pa, private_data);
+ if ((ret = callback(info, PAGE_PT32, vaddr, (addr_t)tmp_pte, pte_pa, private_data)) != 0) {
+ return ret;
+ }
for (j = 0; j < MAX_PTE32_ENTRIES; j++) {
if (tmp_pte[j].present) {
page_va = 0;
}
- callback(PAGE_4KB, vaddr, page_va, page_pa, private_data);
+ if ((ret = callback(info, PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
+ return ret;
+ }
}
vaddr += PAGE_SIZE_4KB;
int v3_walk_guest_pt_32pae(struct guest_info * info, v3_reg_t guest_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
addr_t guest_pdpe_pa = CR3_TO_PDPE32PAE_PA(guest_cr3);
pdpe32pae_t * guest_pdpe = NULL;
int i, j, k;
addr_t vaddr = 0;
+ int ret = 0;
if (!callback) {
PrintError("Call back was not specified\n");
}
-
- callback(PAGE_PDP32PAE, vaddr, (addr_t)guest_pdpe, guest_pdpe_pa, private_data);
+ if ((ret = callback(info, PAGE_PDP32PAE, vaddr, (addr_t)guest_pdpe, guest_pdpe_pa, private_data)) != 0) {
+ return ret;
+ }
for (i = 0; i < MAX_PDPE32PAE_ENTRIES; i++) {
if (guest_pdpe[i].present) {
return -1;
}
- callback(PAGE_PD32PAE, vaddr, (addr_t)tmp_pde, pde_pa, private_data);
+ if ((ret = callback(info, PAGE_PD32PAE, vaddr, (addr_t)tmp_pde, pde_pa, private_data)) != 0) {
+ return ret;
+ }
for (j = 0; j < MAX_PDE32PAE_ENTRIES; j++) {
if (tmp_pde[j].present) {
large_page_va = 0;
}
- callback(PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_2MB;
} else {
return -1;
}
- callback(PAGE_PT32PAE, vaddr, (addr_t)tmp_pte, pte_pa, private_data);
+ if ((ret = callback(info, PAGE_PT32PAE, vaddr, (addr_t)tmp_pte, pte_pa, private_data)) != 0) {
+ return ret;
+ }
for (k = 0; k < MAX_PTE32PAE_ENTRIES; k++) {
if (tmp_pte[k].present) {
page_va = 0;
}
- callback(PAGE_4KB, vaddr, page_va, page_pa, private_data);
+ if ((ret = callback(info, PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
+ return ret;
+ }
}
vaddr += PAGE_SIZE_4KB;
int v3_walk_guest_pt_64(struct guest_info * info, v3_reg_t guest_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
addr_t guest_pml_pa = CR3_TO_PML4E64_PA(guest_cr3);
pml4e64_t * guest_pml = NULL;
int i, j, k, m;
addr_t vaddr = 0;
+ int ret = 0;
if (!callback) {
PrintError("Call back was not specified\n");
}
- callback(PAGE_PML464, vaddr, (addr_t)guest_pml, guest_pml_pa, private_data);
+ if ((ret = callback(info, PAGE_PML464, vaddr, (addr_t)guest_pml, guest_pml_pa, private_data)) != 0) {
+ return ret;
+ }
for (i = 0; i < MAX_PML4E64_ENTRIES; i++) {
if (guest_pml[i].present) {
return -1;
}
- callback(PAGE_PDP64, vaddr, (addr_t)tmp_pdpe, pdpe_pa, private_data);
+ if ((ret = callback(info, PAGE_PDP64, vaddr, (addr_t)tmp_pdpe, pdpe_pa, private_data)) != 0) {
+ return ret;
+ }
for (j = 0; j < MAX_PDPE64_ENTRIES; j++) {
if (tmp_pdpe[j].present) {
large_page_va = 0;
}
- callback(PAGE_1GB, vaddr, (addr_t)large_page_va, large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_1GB, vaddr, (addr_t)large_page_va, large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_1GB;
} else {
return -1;
}
- callback(PAGE_PD64, vaddr, (addr_t)tmp_pde, pde_pa, private_data);
+ if ((ret = callback(info, PAGE_PD64, vaddr, (addr_t)tmp_pde, pde_pa, private_data)) != 0) {
+ return ret;
+ }
for (k = 0; k < MAX_PDE64_ENTRIES; k++) {
if (tmp_pde[k].present) {
large_page_va = 0;
}
- callback(PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_2MB, vaddr, large_page_va, large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_2MB;
} else {
return -1;
}
- callback(PAGE_PT64, vaddr, (addr_t)tmp_pte, pte_pa, private_data);
+ if ((ret = callback(info, PAGE_PT64, vaddr, (addr_t)tmp_pte, pte_pa, private_data)) != 0) {
+ return ret;
+ }
for (m = 0; m < MAX_PTE64_ENTRIES; m++) {
if (tmp_pte[m].present) {
page_va = 0;
}
- callback(PAGE_4KB, vaddr, page_va, page_pa, private_data);
+ if ((ret = callback(info, PAGE_4KB, vaddr, page_va, page_pa, private_data)) != 0) {
+ return ret;
+ }
}
vaddr += PAGE_SIZE_4KB;
return 0;
}
-int v3_walk_host_pt_32(v3_reg_t host_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_walk_host_pt_32(struct guest_info * info, v3_reg_t host_cr3,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
pde32_t * host_pde = (pde32_t *)CR3_TO_PDE32_VA(host_cr3);
addr_t pde_pa = CR3_TO_PDE32_PA(host_cr3);
int i, j;
addr_t vaddr = 0;
+ int ret = 0;
if (!callback) {
PrintError("Call back was not specified\n");
return -1;
}
- callback(PAGE_PD32, vaddr, (addr_t)host_pde, pde_pa, private_data);
+ if ((ret = callback(info, PAGE_PD32, vaddr, (addr_t)host_pde, pde_pa, private_data)) != 0) {
+ return ret;
+ }
for (i = 0; i < MAX_PDE32_ENTRIES; i++) {
if (host_pde[i].present) {
pde32_4MB_t * large_pde = (pde32_4MB_t *)&(host_pde[i]);
addr_t large_page_pa = BASE_TO_PAGE_ADDR_4MB(large_pde->page_base_addr);
- callback(PAGE_4MB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_4MB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_4MB;
} else {
addr_t pte_pa = BASE_TO_PAGE_ADDR(host_pde[i].pt_base_addr);
pte32_t * tmp_pte = (pte32_t *)V3_VAddr((void *)pte_pa);
- callback(PAGE_PT32, vaddr, (addr_t)tmp_pte, pte_pa, private_data);
+ if ((ret = callback(info, PAGE_PT32, vaddr, (addr_t)tmp_pte, pte_pa, private_data)) != 0) {
+ return ret;
+ }
for (j = 0; j < MAX_PTE32_ENTRIES; j++) {
if (tmp_pte[j].present) {
addr_t page_pa = BASE_TO_PAGE_ADDR(tmp_pte[j].page_base_addr);
- callback(PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)page_pa), page_pa, private_data);
+ if ((ret = callback(info, PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)page_pa), page_pa, private_data)) != 0) {
+ return ret;
+ }
}
vaddr += PAGE_SIZE_4KB;
-int v3_walk_host_pt_32pae(v3_reg_t host_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_walk_host_pt_32pae(struct guest_info * info, v3_reg_t host_cr3,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
pdpe32pae_t * host_pdpe = (pdpe32pae_t *)CR3_TO_PDPE32PAE_VA(host_cr3);
addr_t pdpe_pa = CR3_TO_PDPE32PAE_PA(host_cr3);
int i, j, k;
addr_t vaddr = 0;
+ int ret = 0;
if (!callback) {
PrintError("Callback was not specified\n");
return -1;
}
- callback(PAGE_PDP32PAE, vaddr, (addr_t)host_pdpe, pdpe_pa, private_data);
+ if ((ret = callback(info, PAGE_PDP32PAE, vaddr, (addr_t)host_pdpe, pdpe_pa, private_data)) != 0) {
+ return ret;
+ }
for (i = 0; i < MAX_PDPE32PAE_ENTRIES; i++) {
if (host_pdpe[i].present) {
addr_t pde_pa = BASE_TO_PAGE_ADDR(host_pdpe[i].pd_base_addr);
pde32pae_t * tmp_pde = (pde32pae_t *)V3_VAddr((void *)pde_pa);
- callback(PAGE_PD32PAE, vaddr, (addr_t)tmp_pde, pde_pa, private_data);
+ if ((ret = callback(info, PAGE_PD32PAE, vaddr, (addr_t)tmp_pde, pde_pa, private_data)) != 0) {
+ return ret;
+ }
for (j = 0; j < MAX_PDE32PAE_ENTRIES; j++) {
if (tmp_pde[j].present) {
pde32pae_2MB_t * large_pde = (pde32pae_2MB_t *)&(tmp_pde[j]);
addr_t large_page_pa = BASE_TO_PAGE_ADDR_2MB(large_pde->page_base_addr);
- callback(PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_2MB;
} else {
addr_t pte_pa = BASE_TO_PAGE_ADDR(tmp_pde[j].pt_base_addr);
pte32pae_t * tmp_pte = (pte32pae_t *)V3_VAddr((void *)pte_pa);
- callback(PAGE_PT32PAE, vaddr, (addr_t)tmp_pte, pte_pa, private_data);
+ if ((ret = callback(info, PAGE_PT32PAE, vaddr, (addr_t)tmp_pte, pte_pa, private_data)) != 0) {
+ return ret;
+ }
for (k = 0; k < MAX_PTE32PAE_ENTRIES; k++) {
if (tmp_pte[k].present) {
addr_t page_pa = BASE_TO_PAGE_ADDR(tmp_pte[k].page_base_addr);
- callback(PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)page_pa), page_pa, private_data);
+ if ((ret = callback(info, PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)page_pa), page_pa, private_data)) != 0) {
+ return ret;
+ }
}
vaddr += PAGE_SIZE_4KB;
}
-int v3_walk_host_pt_64(v3_reg_t host_cr3,
- int (*callback)(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
+int v3_walk_host_pt_64(struct guest_info * info, v3_reg_t host_cr3,
+ int (*callback)(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data),
void * private_data) {
pml4e64_t * host_pml = (pml4e64_t *)CR3_TO_PML4E64_VA(host_cr3);
addr_t pml_pa = CR3_TO_PML4E64_PA(host_cr3);
int i, j, k, m;
addr_t vaddr = 0;
+ int ret = 0;
if (!callback) {
PrintError("Callback was not specified\n");
return -1;
}
- callback(PAGE_PML464, vaddr, (addr_t)host_pml, pml_pa, private_data);
+ if ((ret = callback(info, PAGE_PML464, vaddr, (addr_t)host_pml, pml_pa, private_data)) != 0) {
+ return ret;
+ }
for (i = 0; i < MAX_PML4E64_ENTRIES; i++) {
if (host_pml[i].present) {
addr_t pdpe_pa = BASE_TO_PAGE_ADDR(host_pml[i].pdp_base_addr);
pdpe64_t * tmp_pdpe = (pdpe64_t *)V3_VAddr((void *)pdpe_pa);
- callback(PAGE_PDP64, vaddr, (addr_t)tmp_pdpe, pdpe_pa, private_data);
+ if ((ret = callback(info, PAGE_PDP64, vaddr, (addr_t)tmp_pdpe, pdpe_pa, private_data)) != 0) {
+ return ret;
+ }
for (j = 0; j < MAX_PDPE64_ENTRIES; j++) {
if (tmp_pdpe[j].present) {
pdpe64_1GB_t * large_pdp = (pdpe64_1GB_t *)&(tmp_pdpe[j]);
addr_t large_page_pa = BASE_TO_PAGE_ADDR_1GB(large_pdp->page_base_addr);
- callback(PAGE_1GB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_1GB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_1GB;
} else {
addr_t pde_pa = BASE_TO_PAGE_ADDR(tmp_pdpe[j].pd_base_addr);
pde64_t * tmp_pde = (pde64_t *)V3_VAddr((void *)pde_pa);
- callback(PAGE_PD64, vaddr, (addr_t)tmp_pde, pde_pa, private_data);
+ if ((ret = callback(info, PAGE_PD64, vaddr, (addr_t)tmp_pde, pde_pa, private_data)) != 0) {
+ return ret;
+ }
for (k = 0; k < MAX_PDE64_ENTRIES; k++) {
if (tmp_pde[k].present) {
pde64_2MB_t * large_pde = (pde64_2MB_t *)&(tmp_pde[k]);
addr_t large_page_pa = BASE_TO_PAGE_ADDR_2MB(large_pde->page_base_addr);
- callback(PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data);
+ if ((ret = callback(info, PAGE_2MB, vaddr, (addr_t)V3_VAddr((void *)large_page_pa), large_page_pa, private_data)) != 0) {
+ return ret;
+ }
vaddr += PAGE_SIZE_2MB;
} else {
addr_t pte_pa = BASE_TO_PAGE_ADDR(tmp_pde[k].pt_base_addr);
pte64_t * tmp_pte = (pte64_t *)V3_VAddr((void *)pte_pa);
- callback(PAGE_PT64, vaddr, (addr_t)tmp_pte, pte_pa, private_data);
+ if ((ret = callback(info, PAGE_PT64, vaddr, (addr_t)tmp_pte, pte_pa, private_data)) != 0) {
+ return ret;
+ }
for (m = 0; m < MAX_PTE64_ENTRIES; m++) {
if (tmp_pte[m].present) {
addr_t page_pa = BASE_TO_PAGE_ADDR(tmp_pte[m].page_base_addr);
- callback(PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)page_pa), page_pa, private_data);
+ if ((ret = callback(info, PAGE_4KB, vaddr, (addr_t)V3_VAddr((void *)page_pa), page_pa, private_data)) != 0) {
+ return ret;
+ }
}
vaddr += PAGE_SIZE_4KB;
}
+static int print_page_walk_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+ int i = 0;
+ addr_t tmp_vaddr = 0;
+ switch (type) {
+ /* 64 Bit */
+ case PAGE_PML464:
+ {
+ pml4e64_t * pml = (pml4e64_t *)page_ptr;
+ PrintDebug("PML4E64 Page\n");
+ for (i = 0; i < MAX_PML4E64_ENTRIES; i++) {
+ tmp_vaddr = (4096 * MAX_PTE64_ENTRIES);
+ tmp_vaddr *= (MAX_PDE64_ENTRIES * MAX_PDPE64_ENTRIES * i); // break apart to avoid int overflow compile errors
+ tmp_vaddr += vaddr;
+ if (pml[i].present)
+ PrintPML4e64(tmp_vaddr, &(pml[i]));
+ }
+ break;
+ }
+ case PAGE_PDP64:
+ {
+ pdpe64_t * pdp = (pdpe64_t *)page_ptr;
+ PrintDebug("PDPE64 Page\n");
+ for (i = 0; i < MAX_PDPE64_ENTRIES; i++) {
+ tmp_vaddr = 4096 * MAX_PTE64_ENTRIES * MAX_PDE64_ENTRIES * i;
+ tmp_vaddr += vaddr;
+ if (pdp[i].present)
+ PrintPDPE64(tmp_vaddr, &(pdp[i]));
+ }
+ break;
+ }
+ case PAGE_PD64:
+ {
+ pde64_t * pd = (pde64_t *)page_ptr;
+ PrintDebug("PDE64 Page\n");
+ for (i = 0; i < MAX_PDE64_ENTRIES; i++) {
+ tmp_vaddr = 4096 * MAX_PTE64_ENTRIES * i;
+ tmp_vaddr += vaddr;
+ if (pd[i].present)
+ PrintPDE64(tmp_vaddr, &(pd[i]));
+ }
+ break;
+ }
+ case PAGE_PT64:
+ {
+ pte64_t * pt = (pte64_t *)page_ptr;
+ PrintDebug("PTE64 Page\n");
+ for (i = 0; i < MAX_PTE64_ENTRIES; i++) {
+ tmp_vaddr = 4096 * i;
+ tmp_vaddr += vaddr;
+ if (pt[i].present)
+ PrintPTE64(tmp_vaddr, &(pt[i]));
+ }
+ break;
+ }
+
+ /* 32 BIT PAE */
+
+ case PAGE_PDP32PAE:
+ {
+ pdpe32pae_t * pdp = (pdpe32pae_t *)page_ptr;
+ PrintDebug("PDPE32PAE Page\n");
+ for (i = 0; i < MAX_PDPE32PAE_ENTRIES; i++) {
+ tmp_vaddr = 4096 * MAX_PTE32PAE_ENTRIES * MAX_PDE32PAE_ENTRIES * i;
+ tmp_vaddr += vaddr;
+ if (pdp[i].present)
+ PrintPDPE32PAE(tmp_vaddr, &(pdp[i]));
+ }
+ break;
+ }
+ case PAGE_PD32PAE:
+ {
+ pde32pae_t * pd = (pde32pae_t *)page_ptr;
+ PrintDebug("PDE32PAE Page\n");
+ for (i = 0; i < MAX_PDE32PAE_ENTRIES; i++) {
+ tmp_vaddr = 4096 * MAX_PTE32PAE_ENTRIES * i;
+ tmp_vaddr += vaddr;
+ if (pd[i].present)
+ PrintPDE32PAE(tmp_vaddr, &(pd[i]));
+ }
+ break;
+ }
+ case PAGE_PT32PAE:
+ {
+ pte32pae_t * pt = (pte32pae_t *)page_ptr;
+ PrintDebug("PTE32PAE Page\n");
+ for (i = 0; i < MAX_PTE32PAE_ENTRIES; i++) {
+ tmp_vaddr = 4096 * i;
+ tmp_vaddr += vaddr;
+ if (pt[i].present)
+ PrintPTE32PAE(tmp_vaddr, &(pt[i]));
+ }
+ break;
+ }
+
+ /* 32 Bit */
+
+ case PAGE_PD32:
+ {
+ pde32_t * pd = (pde32_t *)page_ptr;
+ PrintDebug("PDE32 Page\n");
+ for (i = 0; i < MAX_PTE32_ENTRIES; i++) {
+ tmp_vaddr = 4096 * MAX_PTE32_ENTRIES * i;
+ tmp_vaddr += vaddr;
+ if (pd[i].present)
+ PrintPDE32(tmp_vaddr, &(pd[i]));
+ }
+ break;
+ }
+ case PAGE_PT32:
+ {
+ pte32_t * pt = (pte32_t *)page_ptr;
+ PrintDebug("PTE32 Page\n");
+ for (i = 0; i < MAX_PTE32_ENTRIES; i++) {
+ tmp_vaddr = 4096 * i;
+ tmp_vaddr += vaddr;
+ if (pt[i].present)
+ PrintPTE32(tmp_vaddr, &(pt[i]));
+ }
+ break;
+ }
+ default:
+ break;
+ }
+
+ return 0;
+}
-static int print_page_tree_cb(page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
+static int print_page_tree_cb(struct guest_info * info, page_type_t type, addr_t vaddr, addr_t page_ptr, addr_t page_pa, void * private_data) {
switch (type) {
/* 64 Bit */
-void PrintPTEntry(page_type_t type, addr_t vaddr, void * entry) {
- print_page_tree_cb(type, vaddr, PAGE_ADDR_4KB((addr_t)entry), 0, NULL);
+void PrintPTEntry(struct guest_info * info, page_type_t type, addr_t vaddr, void * entry) {
+ print_page_tree_cb(info, type, vaddr, PAGE_ADDR_4KB((addr_t)entry), 0, NULL);
}
-void PrintHostPageTables(v3_vm_cpu_mode_t cpu_mode, addr_t cr3) {
- switch (cpu_mode) {
+void PrintHostPageTables(struct guest_info * info, addr_t cr3) {
+ PrintDebug("CR3: %p\n", (void *)cr3);
+ switch (info->cpu_mode) {
case PROTECTED:
- v3_walk_host_pt_32(cr3, print_page_tree_cb, NULL);
+ v3_walk_host_pt_32(info, cr3, print_page_walk_cb, NULL);
+ break;
case PROTECTED_PAE:
- v3_walk_host_pt_32pae(cr3, print_page_tree_cb, NULL);
+ v3_walk_host_pt_32pae(info, cr3, print_page_walk_cb, NULL);
+ break;
case LONG:
case LONG_32_COMPAT:
case LONG_16_COMPAT:
- v3_walk_host_pt_64(cr3, print_page_tree_cb, NULL);
+ v3_walk_host_pt_64(info, cr3, print_page_walk_cb, NULL);
break;
default:
- PrintError("Unsupported CPU MODE %s\n", v3_cpu_mode_to_str(cpu_mode));
+ PrintError("Unsupported CPU MODE %s\n", v3_cpu_mode_to_str(info->cpu_mode));
break;
}
}
void PrintGuestPageTables(struct guest_info * info, addr_t cr3) {
+ PrintDebug("CR3: %p\n", (void *)cr3);
switch (info->cpu_mode) {
case PROTECTED:
- v3_walk_guest_pt_32(info, cr3, print_page_tree_cb, NULL);
+ v3_walk_guest_pt_32(info, cr3, print_page_walk_cb, NULL);
+ break;
case PROTECTED_PAE:
- v3_walk_guest_pt_32pae(info, cr3, print_page_tree_cb, NULL);
+ v3_walk_guest_pt_32pae(info, cr3, print_page_walk_cb, NULL);
+ break;
case LONG:
case LONG_32_COMPAT:
case LONG_16_COMPAT:
- v3_walk_guest_pt_64(info, cr3, print_page_tree_cb, NULL);
+ v3_walk_guest_pt_64(info, cr3, print_page_walk_cb, NULL);
break;
default:
PrintError("Unsupported CPU MODE %s\n", v3_cpu_mode_to_str(info->cpu_mode));
}
}
-void PrintHostPageTree(v3_vm_cpu_mode_t cpu_mode, addr_t virtual_addr, addr_t cr3) {
- switch (cpu_mode) {
+void PrintHostPageTree(struct guest_info * info, addr_t virtual_addr, addr_t cr3) {
+ PrintDebug("CR3: %p\n", (void *)cr3);
+ switch (info->cpu_mode) {
case PROTECTED:
- v3_drill_host_pt_32(cr3, virtual_addr, print_page_tree_cb, NULL);
+ v3_drill_host_pt_32(info, cr3, virtual_addr, print_page_tree_cb, NULL);
+ break;
case PROTECTED_PAE:
- v3_drill_host_pt_32pae(cr3, virtual_addr, print_page_tree_cb, NULL);
+ v3_drill_host_pt_32pae(info, cr3, virtual_addr, print_page_tree_cb, NULL);
+ break;
case LONG:
case LONG_32_COMPAT:
case LONG_16_COMPAT:
- v3_drill_host_pt_64(cr3, virtual_addr, print_page_tree_cb, NULL);
+ v3_drill_host_pt_64(info, cr3, virtual_addr, print_page_tree_cb, NULL);
break;
default:
- PrintError("Unsupported CPU MODE %s\n", v3_cpu_mode_to_str(cpu_mode));
+ PrintError("Unsupported CPU MODE %s\n", v3_cpu_mode_to_str(info->cpu_mode));
break;
}
}
void PrintGuestPageTree(struct guest_info * info, addr_t virtual_addr, addr_t cr3) {
+ PrintDebug("CR3: %p\n", (void *)cr3);
switch (info->cpu_mode) {
case PROTECTED:
v3_drill_guest_pt_32(info, cr3, virtual_addr, print_page_tree_cb, NULL);
+ break;
case PROTECTED_PAE:
v3_drill_guest_pt_32pae(info, cr3, virtual_addr, print_page_tree_cb, NULL);
+ break;
case LONG:
case LONG_32_COMPAT:
case LONG_16_COMPAT:
return (key1 == key2);
}
-static addr_t create_new_shadow_pt(struct guest_info * info);
+static struct shadow_page_data * create_new_shadow_pt(struct guest_info * info);
static void inject_guest_pf(struct guest_info * info, addr_t fault_addr, pf_error_t error_code);
static int is_guest_pf(pt_access_status_t guest_access, pt_access_status_t shadow_access);
case LONG_16_COMPAT:
return activate_shadow_pt_64(info);
default:
- PrintError("Invalid CPU mode: %d\n", info->cpu_mode);
+ PrintError("Invalid CPU mode: %s\n", v3_cpu_mode_to_str(info->cpu_mode));
return -1;
}
case PROTECTED_PAE:
return handle_shadow_pagefault_32pae(info, fault_addr, error_code);
case LONG:
+ case LONG_32_COMPAT:
+ case LONG_16_COMPAT:
return handle_shadow_pagefault_64(info, fault_addr, error_code);
break;
default:
- PrintError("Unhandled CPU Mode\n");
+ PrintError("Unhandled CPU Mode: %s\n", v3_cpu_mode_to_str(info->cpu_mode));
return -1;
}
} else {
case LONG_16_COMPAT:
return handle_shadow_invlpg_64(info, vaddr);
default:
- PrintError("Invalid CPU mode: %d\n", info->cpu_mode);
+ PrintError("Invalid CPU mode: %s\n", v3_cpu_mode_to_str(info->cpu_mode));
return -1;
}
}
-static addr_t create_new_shadow_pt(struct guest_info * info) {
+static struct shadow_page_data * create_new_shadow_pt(struct guest_info * info) {
struct shadow_page_state * state = &(info->shdw_pg_state);
v3_reg_t cur_cr3 = info->ctrl_regs.cr3;
struct shadow_page_data * page_tail = NULL;
page_tail = list_tail_entry(&(state->page_list), struct shadow_page_data, page_list_node);
if (page_tail->cr3 != cur_cr3) {
- page_tail->cr3 = cur_cr3;
+ PrintDebug("Reusing old shadow Page: %p (cur_CR3=%p)(page_cr3=%p) \n",
+ (void *) page_tail->page_pa, (void *)cur_cr3, (void *)(page_tail->cr3));
+
list_move(&(page_tail->page_list_node), &(state->page_list));
memset(V3_VAddr((void *)(page_tail->page_pa)), 0, PAGE_SIZE_4KB);
- PrintDebug("Reusing old shadow Page\n");
- return (addr_t)V3_VAddr((void *)(page_tail->page_pa));
+
+ return page_tail;
}
}
page_tail = (struct shadow_page_data *)V3_Malloc(sizeof(struct shadow_page_data));
page_tail->page_pa = (addr_t)V3_AllocPages(1);
+ PrintDebug("Allocating new shadow Page: %p (cur_cr3=%p)\n", (void *)page_tail->page_pa, (void *)cur_cr3);
+
page_tail->cr3 = cur_cr3;
list_add(&(page_tail->page_list_node), &(state->page_list));
shdw_page = (addr_t)V3_VAddr((void *)(page_tail->page_pa));
memset((void *)shdw_page, 0, PAGE_SIZE_4KB);
- return shdw_page;
+ return page_tail;
}
PrintError("CR3 Cache failed\n");
return -1;
} else if (cached == 0) {
- addr_t shadow_pt;
-
- shadow_pt = create_new_shadow_pt(info);
+ struct shadow_page_data * shdw_page = create_new_shadow_pt(info);
+
+ shdw_page->cr3 = shdw_page->page_pa;
- shadow_cr3->pdt_base_addr = (addr_t)V3_PAddr((void *)(addr_t)PAGE_BASE_ADDR(shadow_pt));
+ shadow_cr3->pdt_base_addr = PAGE_BASE_ADDR(shdw_page->page_pa);
PrintDebug( "Created new shadow page table %p\n", (void *)BASE_TO_PAGE_ADDR(shadow_cr3->pdt_base_addr));
} else {
PrintDebug("Reusing cached shadow Page table\n");
if (shadow_pde_access == PT_ACCESS_NOT_PRESENT)
{
- pte32_t * shadow_pt = (pte32_t *)create_new_shadow_pt(info);
+ struct shadow_page_data * shdw_page = create_new_shadow_pt(info);
+ pte32_t * shadow_pt = (pte32_t *)V3_VAddr((void *)shdw_page->page_pa);
shadow_pde->present = 1;
shadow_pde->user_page = guest_pde->user_page;
}
}
else if ((shadow_pde_access == PT_ACCESS_WRITE_ERROR) &&
- (guest_pde->large_page == 1) &&
- (((pde32_4MB_t *)guest_pde)->dirty == 0))
+ (guest_pde->large_page == 1))
{
//
// Page Directory Entry marked read-only
PrintDebug("Manual Says to inject page fault into guest\n");
#ifdef DEBUG_SHADOW_PAGING
PrintDebug("Guest PDE: (access=%d)\n\t", guest_pde_access);
- PrintPTEntry(PAGE_PD32, fault_addr, guest_pde);
+ PrintPTEntry(info, PAGE_PD32, fault_addr, guest_pde);
PrintDebug("Shadow PDE: (access=%d)\n\t", shadow_pde_access);
- PrintPTEntry(PAGE_PD32, fault_addr, shadow_pde);
+ PrintPTEntry(info, PAGE_PD32, fault_addr, shadow_pde);
#endif
return 0;
#ifdef DEBUG_SHADOW_PAGING
PrintDebug("Guest PTE: (access=%d)\n\t", guest_pte_access);
- PrintPTEntry(PAGE_PT32, fault_addr, guest_pte);
+ PrintPTEntry(info, PAGE_PT32, fault_addr, guest_pte);
PrintDebug("Shadow PTE: (access=%d)\n\t", shadow_pte_access);
- PrintPTEntry(PAGE_PT32, fault_addr, shadow_pte);
+ PrintPTEntry(info, PAGE_PT32, fault_addr, shadow_pte);
#endif
/* Was the page fault caused by the Guest's page tables? */
inject_guest_pf(info, fault_addr, error_code);
return 0;
}
+
if (shadow_pte_access == PT_ACCESS_OK) {
static inline int activate_shadow_pt_64(struct guest_info * info) {
struct cr3_64 * shadow_cr3 = (struct cr3_64 *)&(info->ctrl_regs.cr3);
struct cr3_64 * guest_cr3 = (struct cr3_64 *)&(info->shdw_pg_state.guest_cr3);
- addr_t shadow_pt = 0;
-
- shadow_pt = create_new_shadow_pt(info);
+ struct shadow_page_data * shadow_pt = create_new_shadow_pt(info);
+ addr_t shadow_pt_addr = shadow_pt->page_pa;
+
+ // Because this is a new CR3 load the allocated page is the new CR3 value
+ shadow_pt->cr3 = shadow_pt->page_pa;
- shadow_cr3->pml4t_base_addr = (addr_t)V3_PAddr((void *)(addr_t)PAGE_BASE_ADDR_4KB(shadow_pt));
- PrintDebug("Creating new 64 bit shadow page table %p\n", (void *)BASE_TO_PAGE_ADDR(shadow_cr3->pml4t_base_addr))
+ PrintDebug("Top level Shadow page pa=%p\n", (void *)shadow_pt_addr);
+
+ shadow_cr3->pml4t_base_addr = PAGE_BASE_ADDR_4KB(shadow_pt_addr);
+ PrintDebug("Creating new 64 bit shadow page table %p\n", (void *)BASE_TO_PAGE_ADDR(shadow_cr3->pml4t_base_addr));
shadow_cr3->pwt = guest_cr3->pwt;
* *
* *
*/
-/*
-static int handle_2MB_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
- pte64_t * shadow_pt, pde64_2MB_t * large_guest_pde);
-static int handle_pte_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
- pte64_t * shadow_pt, pte64_t * guest_pt);
+static int handle_2MB_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pte64_t * shadow_pt, pde64_2MB_t * large_guest_pde);
+
+static int handle_pte_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pte64_t * shadow_pt, pte64_t * guest_pt);
-static int handle_pde_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
- pde64_t * shadow_pd, pde64_t * guest_pd);
+static int handle_pde_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pde64_t * shadow_pd, pde64_t * guest_pd);
+
+static int handle_pdpe_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pdpe64_t * shadow_pdp, pdpe64_t * guest_pdp);
-static int handle_pdpe_shadow_pagefault(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
- pdpe64_t * shadow_pdp, pdpe64_t * guest_pdp);
-*/
static inline int handle_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code) {
- /* pml4e64_t * guest_pml = NULL;
+ pml4e64_t * guest_pml = NULL;
pml4e64_t * shadow_pml = CR3_TO_PML4E64_VA(info->ctrl_regs.cr3);
addr_t guest_cr3 = CR3_TO_PML4E64_PA(info->shdw_pg_state.guest_cr3);
- pt_access_status_t guest_pml_access;
- pt_access_status_t shadow_pml_access;
- pml4e64_t * guest_pmle = NULL;
- // pml4e64_t * shadow_pmle = ;
- */
+ pt_access_status_t guest_pml4e_access;
+ pt_access_status_t shadow_pml4e_access;
+ pml4e64_t * guest_pml4e = NULL;
+ pml4e64_t * shadow_pml4e = (pml4e64_t *)&(shadow_pml[PML4E64_INDEX(fault_addr)]);
+
+ PrintDebug("64 bit Shadow page fault handler: %p\n", (void *)fault_addr);
+ PrintDebug("Handling PML fault\n");
+
+ if (guest_pa_to_host_va(info, guest_cr3, (addr_t*)&guest_pml) == -1) {
+ PrintError("Invalid Guest PML4E Address: 0x%p\n", (void *)guest_cr3);
+ return -1;
+ }
+
+ guest_pml4e = (pml4e64_t *)&(guest_pml[PML4E64_INDEX(fault_addr)]);
+
+ PrintDebug("Checking Guest %p\n", (void *)guest_pml);
+ // Check the guest page permissions
+ guest_pml4e_access = v3_can_access_pml4e64(guest_pml, fault_addr, error_code);
+
+ PrintDebug("Checking shadow %p\n", (void *)shadow_pml);
+ // Check the shadow page permissions
+ shadow_pml4e_access = v3_can_access_pml4e64(shadow_pml, fault_addr, error_code);
+
+ /* Was the page fault caused by the Guest's page tables? */
+ if (is_guest_pf(guest_pml4e_access, shadow_pml4e_access) == 1) {
+ PrintDebug("Injecting PML4E pf to guest: (guest access error=%d) (pf error code=%d)\n",
+ *(uint_t *)&guest_pml4e_access, *(uint_t *)&error_code);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+ }
+
+ if (shadow_pml4e_access == PT_ACCESS_USER_ERROR) {
+ //
+ // PML4 Entry marked non-user
+ //
+ PrintDebug("Shadow Paging User access error (shadow_pml4e_access=0x%x, guest_pml4e_access=0x%x)\n",
+ shadow_pml4e_access, guest_pml4e_access);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+ } else if ((shadow_pml4e_access != PT_ACCESS_NOT_PRESENT) &&
+ (shadow_pml4e_access != PT_ACCESS_OK)) {
+ // inject page fault in guest
+ inject_guest_pf(info, fault_addr, error_code);
+ PrintDebug("Unknown Error occurred (shadow_pde_access=%d)\n", shadow_pml4e_access);
+ PrintDebug("Manual Says to inject page fault into guest\n");
+ return 0;
+ }
+
+
+ pdpe64_t * shadow_pdp = NULL;
+ pdpe64_t * guest_pdp = NULL;
+
+ // Get the next shadow page level, allocate if not present
+
+ if (shadow_pml4e_access == PT_ACCESS_NOT_PRESENT) {
+ struct shadow_page_data * shdw_page = create_new_shadow_pt(info);
+ shadow_pdp = (pdpe64_t *)V3_VAddr((void *)shdw_page->page_pa);
+
+
+ shadow_pml4e->present = 1;
+ shadow_pml4e->user_page = guest_pml4e->user_page;
+ shadow_pml4e->writable = guest_pml4e->writable;
+
+ // VMM Specific options
+ shadow_pml4e->write_through = 0;
+ shadow_pml4e->cache_disable = 0;
+ //
+
+ guest_pml4e->accessed = 1;
+
+ shadow_pml4e->pdp_base_addr = PAGE_BASE_ADDR(shdw_page->page_pa);
+ } else {
+ shadow_pdp = (pdpe64_t *)V3_VAddr((void *)(addr_t)BASE_TO_PAGE_ADDR(shadow_pml4e->pdp_base_addr));
+ }
+
+ // Continue processing at the next level
+
+ if (guest_pa_to_host_va(info, BASE_TO_PAGE_ADDR(guest_pml4e->pdp_base_addr), (addr_t *)&guest_pdp) == -1) {
+ // Machine check the guest
+ PrintDebug("Invalid Guest PDP Address: 0x%p\n", (void *)BASE_TO_PAGE_ADDR(guest_pml4e->pdp_base_addr));
+ v3_raise_exception(info, MC_EXCEPTION);
+ return 0;
+ }
+ if (handle_pdpe_shadow_pagefault_64(info, fault_addr, error_code, shadow_pdp, guest_pdp) == -1) {
+ PrintError("Error handling Page fault caused by PDPE\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+// For now we are not going to handle 1 Gigabyte pages
+static int handle_pdpe_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pdpe64_t * shadow_pdp, pdpe64_t * guest_pdp) {
+ pt_access_status_t guest_pdpe_access;
+ pt_access_status_t shadow_pdpe_access;
+ pdpe64_t * guest_pdpe = (pdpe64_t *)&(guest_pdp[PDPE64_INDEX(fault_addr)]);
+ pdpe64_t * shadow_pdpe = (pdpe64_t *)&(shadow_pdp[PDPE64_INDEX(fault_addr)]);
+
+ PrintDebug("Handling PDP fault\n");
+
+ // Check the guest page permissions
+ guest_pdpe_access = v3_can_access_pdpe64(guest_pdp, fault_addr, error_code);
+
+ // Check the shadow page permissions
+ shadow_pdpe_access = v3_can_access_pdpe64(shadow_pdp, fault_addr, error_code);
+ /* Was the page fault caused by the Guest's page tables? */
+ if (is_guest_pf(guest_pdpe_access, shadow_pdpe_access) == 1) {
+ PrintDebug("Injecting PDPE pf to guest: (guest access error=%d) (pf error code=%d)\n",
+ *(uint_t *)&guest_pdpe_access, *(uint_t *)&error_code);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+ }
- PrintError("64 bit shadow paging not implemented\n");
- return -1;
+ if (shadow_pdpe_access == PT_ACCESS_USER_ERROR) {
+ //
+ // PML4 Entry marked non-user
+ //
+ PrintDebug("Shadow Paging User access error (shadow_pdpe_access=0x%x, guest_pdpe_access=0x%x)\n",
+ shadow_pdpe_access, guest_pdpe_access);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+ } else if ((shadow_pdpe_access != PT_ACCESS_NOT_PRESENT) &&
+ (shadow_pdpe_access != PT_ACCESS_OK)) {
+ // inject page fault in guest
+ inject_guest_pf(info, fault_addr, error_code);
+ PrintDebug("Unknown Error occurred (shadow_pde_access=%d)\n", shadow_pdpe_access);
+ PrintDebug("Manual Says to inject page fault into guest\n");
+ return 0;
+ }
+
+
+ pde64_t * shadow_pd = NULL;
+ pde64_t * guest_pd = NULL;
+
+ // Get the next shadow page level, allocate if not present
+
+ if (shadow_pdpe_access == PT_ACCESS_NOT_PRESENT) {
+ struct shadow_page_data * shdw_page = create_new_shadow_pt(info);
+ shadow_pd = (pde64_t *)V3_VAddr((void *)shdw_page->page_pa);
+
+
+ shadow_pdpe->present = 1;
+ shadow_pdpe->user_page = guest_pdpe->user_page;
+ shadow_pdpe->writable = guest_pdpe->writable;
+
+ // VMM Specific options
+ shadow_pdpe->write_through = 0;
+ shadow_pdpe->cache_disable = 0;
+ //
+
+ guest_pdpe->accessed = 1;
+
+ shadow_pdpe->pd_base_addr = PAGE_BASE_ADDR(shdw_page->page_pa);
+ } else {
+ shadow_pd = (pde64_t *)V3_VAddr((void *)(addr_t)BASE_TO_PAGE_ADDR(shadow_pdpe->pd_base_addr));
+ }
+
+ // Continue processing at the next level
+
+ if (guest_pa_to_host_va(info, BASE_TO_PAGE_ADDR(guest_pdpe->pd_base_addr), (addr_t *)&guest_pd) == -1) {
+ // Machine check the guest
+ PrintDebug("Invalid Guest PTE Address: 0x%p\n", (void *)BASE_TO_PAGE_ADDR(guest_pdpe->pd_base_addr));
+ v3_raise_exception(info, MC_EXCEPTION);
+ return 0;
+ }
+
+ if (handle_pde_shadow_pagefault_64(info, fault_addr, error_code, shadow_pd, guest_pd) == -1) {
+ PrintError("Error handling Page fault caused by PDE\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static int handle_pde_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pde64_t * shadow_pd, pde64_t * guest_pd) {
+ pt_access_status_t guest_pde_access;
+ pt_access_status_t shadow_pde_access;
+ pde64_t * guest_pde = (pde64_t *)&(guest_pd[PDE64_INDEX(fault_addr)]);
+ pde64_t * shadow_pde = (pde64_t *)&(shadow_pd[PDE64_INDEX(fault_addr)]);
+
+ PrintDebug("Handling PDE fault\n");
+
+ // Check the guest page permissions
+ guest_pde_access = v3_can_access_pde64(guest_pd, fault_addr, error_code);
+
+ // Check the shadow page permissions
+ shadow_pde_access = v3_can_access_pde64(shadow_pd, fault_addr, error_code);
+
+ /* Was the page fault caused by the Guest's page tables? */
+ if (is_guest_pf(guest_pde_access, shadow_pde_access) == 1) {
+ PrintDebug("Injecting PDE pf to guest: (guest access error=%d) (pf error code=%d)\n",
+ *(uint_t *)&guest_pde_access, *(uint_t *)&error_code);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+ }
+
+ if (shadow_pde_access == PT_ACCESS_USER_ERROR) {
+ //
+ // PDE Entry marked non-user
+ //
+ PrintDebug("Shadow Paging User access error (shadow_pdpe_access=0x%x, guest_pdpe_access=0x%x)\n",
+ shadow_pde_access, guest_pde_access);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+
+ } else if ((shadow_pde_access == PT_ACCESS_WRITE_ERROR) &&
+ (guest_pde->large_page == 1)) {
+
+ ((pde64_2MB_t *)guest_pde)->dirty = 1;
+ shadow_pde->writable = guest_pde->writable;
+
+ PrintDebug("Returning due to large page Write Error\n");
+ PrintHostPageTree(info, fault_addr, info->ctrl_regs.cr3);
+
+ return 0;
+ } else if ((shadow_pde_access != PT_ACCESS_NOT_PRESENT) &&
+ (shadow_pde_access != PT_ACCESS_OK)) {
+ // inject page fault in guest
+ inject_guest_pf(info, fault_addr, error_code);
+ PrintDebug("Unknown Error occurred (shadow_pde_access=%d)\n", shadow_pde_access);
+ PrintDebug("Manual Says to inject page fault into guest\n");
+ return 0;
+ }
+
+
+ pte64_t * shadow_pt = NULL;
+ pte64_t * guest_pt = NULL;
+
+ // Get the next shadow page level, allocate if not present
+
+ if (shadow_pde_access == PT_ACCESS_NOT_PRESENT) {
+ struct shadow_page_data * shdw_page = create_new_shadow_pt(info);
+ shadow_pt = (pte64_t *)V3_VAddr((void *)shdw_page->page_pa);
+
+ PrintDebug("Creating new shadow PT: %p\n", shadow_pt);
+
+ shadow_pde->present = 1;
+ shadow_pde->user_page = guest_pde->user_page;
+
+
+ if (guest_pde->large_page == 0) {
+ shadow_pde->writable = guest_pde->writable;
+ } else {
+ if (error_code.write) {
+ shadow_pde->writable = guest_pde->writable;
+ ((pde64_2MB_t *)guest_pde)->dirty = 1;
+ } else {
+ shadow_pde->writable = 0;
+ ((pde64_2MB_t *)guest_pde)->dirty = 0;
+ }
+ }
+
+ // VMM Specific options
+ shadow_pde->write_through = 0;
+ shadow_pde->cache_disable = 0;
+ shadow_pde->global_page = 0;
+ //
+
+ guest_pde->accessed = 1;
+
+ shadow_pde->pt_base_addr = PAGE_BASE_ADDR(shdw_page->page_pa);
+ } else {
+ shadow_pt = (pte64_t *)V3_VAddr((void *)BASE_TO_PAGE_ADDR(shadow_pde->pt_base_addr));
+ }
+
+ // Continue processing at the next level
+ if (guest_pde->large_page == 0) {
+ if (guest_pa_to_host_va(info, BASE_TO_PAGE_ADDR(guest_pde->pt_base_addr), (addr_t *)&guest_pt) == -1) {
+ // Machine check the guest
+ PrintDebug("Invalid Guest PTE Address: 0x%p\n", (void *)BASE_TO_PAGE_ADDR(guest_pde->pt_base_addr));
+ v3_raise_exception(info, MC_EXCEPTION);
+ return 0;
+ }
+
+ if (handle_pte_shadow_pagefault_64(info, fault_addr, error_code, shadow_pt, guest_pt) == -1) {
+ PrintError("Error handling Page fault caused by PDE\n");
+ return -1;
+ }
+ } else {
+ if (handle_2MB_shadow_pagefault_64(info, fault_addr, error_code, shadow_pt, (pde64_2MB_t *)guest_pde) == -1) {
+ PrintError("Error handling large pagefault\n");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
+static int handle_pte_shadow_pagefault_64(struct guest_info * info, addr_t fault_addr, pf_error_t error_code,
+ pte64_t * shadow_pt, pte64_t * guest_pt) {
+ pt_access_status_t guest_pte_access;
+ pt_access_status_t shadow_pte_access;
+ pte64_t * guest_pte = (pte64_t *)&(guest_pt[PTE64_INDEX(fault_addr)]);;
+ pte64_t * shadow_pte = (pte64_t *)&(shadow_pt[PTE64_INDEX(fault_addr)]);
+ addr_t guest_pa = BASE_TO_PAGE_ADDR((addr_t)(guest_pte->page_base_addr)) + PAGE_OFFSET(fault_addr);
+ // struct shadow_page_state * state = &(info->shdw_pg_state);
+
+ PrintDebug("Handling PTE fault\n");
+
+ struct v3_shadow_region * shdw_reg = v3_get_shadow_region(info, guest_pa);
+
+
+
+ if ((shdw_reg == NULL) ||
+ (shdw_reg->host_type == SHDW_REGION_INVALID)) {
+ // Inject a machine check in the guest
+ PrintDebug("Invalid Guest Address in page table (0x%p)\n", (void *)guest_pa);
+ v3_raise_exception(info, MC_EXCEPTION);
+ return 0;
+ }
+
+ // Check the guest page permissions
+ guest_pte_access = v3_can_access_pte64(guest_pt, fault_addr, error_code);
+
+ // Check the shadow page permissions
+ shadow_pte_access = v3_can_access_pte64(shadow_pt, fault_addr, error_code);
+
+ /* Was the page fault caused by the Guest's page tables? */
+ if (is_guest_pf(guest_pte_access, shadow_pte_access) == 1) {
+ PrintDebug("Access error injecting pf to guest (guest access error=%d) (pf error code=%d)\n",
+ guest_pte_access, *(uint_t*)&error_code);
+ inject_guest_pf(info, fault_addr, error_code);
+ return 0;
+ }
+
+
+ if (shadow_pte_access == PT_ACCESS_OK) {
+ // Inconsistent state...
+ // Guest Re-Entry will flush page tables and everything should now work
+ PrintDebug("Inconsistent state... Guest re-entry should flush tlb\n");
+ return 0;
+ }
+
+
+ if (shadow_pte_access == PT_ACCESS_NOT_PRESENT) {
+ // Page Table Entry Not Present
+ PrintDebug("guest_pa =%p\n", (void *)guest_pa);
+
+ if ((shdw_reg->host_type == SHDW_REGION_ALLOCATED) ||
+ (shdw_reg->host_type == SHDW_REGION_WRITE_HOOK)) {
+ addr_t shadow_pa = v3_get_shadow_addr(shdw_reg, guest_pa);
+
+ shadow_pte->page_base_addr = PAGE_BASE_ADDR(shadow_pa);
+
+ shadow_pte->present = guest_pte->present;
+ shadow_pte->user_page = guest_pte->user_page;
+
+ //set according to VMM policy
+ shadow_pte->write_through = 0;
+ shadow_pte->cache_disable = 0;
+ shadow_pte->global_page = 0;
+ //
+
+ guest_pte->accessed = 1;
+
+ if (guest_pte->dirty == 1) {
+ shadow_pte->writable = guest_pte->writable;
+ } else if ((guest_pte->dirty == 0) && (error_code.write == 1)) {
+ shadow_pte->writable = guest_pte->writable;
+ guest_pte->dirty = 1;
+ } else if ((guest_pte->dirty == 0) && (error_code.write == 0)) {
+ shadow_pte->writable = 0;
+ }
+
+ // dirty flag has been set, check if its in the cache
+/* if (find_pte_map(state->cached_ptes, PAGE_ADDR(guest_pa)) != NULL) { */
+/* if (error_code.write == 1) { */
+/* state->cached_cr3 = 0; */
+/* shadow_pte->writable = guest_pte->writable; */
+/* } else { */
+/* shadow_pte->writable = 0; */
+/* } */
+/* } */
+
+ // Write hooks trump all, and are set Read Only
+ if (shdw_reg->host_type == SHDW_REGION_WRITE_HOOK) {
+ shadow_pte->writable = 0;
+ }
+
+ } else {
+ // Page fault handled by hook functions
+
+ if (v3_handle_mem_full_hook(info, fault_addr, guest_pa, shdw_reg, error_code) == -1) {
+ PrintError("Special Page fault handler returned error for address: %p\n", (void *)fault_addr);
+ return -1;
+ }
+ }
+ } else if (shadow_pte_access == PT_ACCESS_WRITE_ERROR) {
+ guest_pte->dirty = 1;
+
+ if (shdw_reg->host_type == SHDW_REGION_WRITE_HOOK) {
+ if (v3_handle_mem_wr_hook(info, fault_addr, guest_pa, shdw_reg, error_code) == -1) {
+ PrintError("Special Page fault handler returned error for address: %p\n", (void *)fault_addr);
+ return -1;
+ }
+ } else {
+ PrintDebug("Shadow PTE Write Error\n");
+ shadow_pte->writable = guest_pte->writable;
+ }
+
+/* if (find_pte_map(state->cached_ptes, PAGE_ADDR(guest_pa)) != NULL) { */
+/* struct shadow_page_state * state = &(info->shdw_pg_state); */
+/* PrintDebug("Write operation on Guest PAge Table Page\n"); */
+/* state->cached_cr3 = 0; */
+/* } */
+
+ return 0;
+
+ } else {
+ // Inject page fault into the guest
+ inject_guest_pf(info, fault_addr, error_code);
+ PrintError("PTE Page fault fell through... Not sure if this should ever happen\n");
+ PrintError("Manual Says to inject page fault into guest\n");
+ return -1;
+ }
+
+ return 0;
}
+
+static int handle_2MB_shadow_pagefault_64(struct guest_info * info,
+ addr_t fault_addr, pf_error_t error_code,
+ pte64_t * shadow_pt, pde64_2MB_t * large_guest_pde)
+{
+ pt_access_status_t shadow_pte_access = v3_can_access_pte64(shadow_pt, fault_addr, error_code);
+ pte64_t * shadow_pte = (pte64_t *)&(shadow_pt[PTE64_INDEX(fault_addr)]);
+ addr_t guest_fault_pa = BASE_TO_PAGE_ADDR_2MB(large_guest_pde->page_base_addr) + PAGE_OFFSET_2MB(fault_addr);
+ // struct shadow_page_state * state = &(info->shdw_pg_state);
+
+ PrintDebug("Handling 2MB fault (guest_fault_pa=%p) (error_code=%x)\n", (void *)guest_fault_pa, *(uint_t*)&error_code);
+ PrintDebug("ShadowPT=%p, LargeGuestPDE=%p\n", shadow_pt, large_guest_pde);
+
+ struct v3_shadow_region * shdw_reg = v3_get_shadow_region(info, guest_fault_pa);
+
+
+ if ((shdw_reg == NULL) ||
+ (shdw_reg->host_type == SHDW_REGION_INVALID)) {
+ // Inject a machine check in the guest
+ PrintDebug("Invalid Guest Address in page table (0x%p)\n", (void *)guest_fault_pa);
+ v3_raise_exception(info, MC_EXCEPTION);
+ return -1;
+ }
+
+ if (shadow_pte_access == PT_ACCESS_OK) {
+ // Inconsistent state...
+ // Guest Re-Entry will flush tables and everything should now workd
+ PrintDebug("Inconsistent state... Guest re-entry should flush tlb\n");
+ PrintHostPageTree(info, fault_addr, info->ctrl_regs.cr3);
+ return 0;
+ }
+
+
+ if (shadow_pte_access == PT_ACCESS_NOT_PRESENT) {
+ // Get the guest physical address of the fault
+
+ if ((shdw_reg->host_type == SHDW_REGION_ALLOCATED) ||
+ (shdw_reg->host_type == SHDW_REGION_WRITE_HOOK)) {
+ addr_t shadow_pa = v3_get_shadow_addr(shdw_reg, guest_fault_pa);
+
+ PrintDebug("Shadow PA=%p, ShadowPTE=%p\n", (void *)shadow_pa, (void *)shadow_pte);
+
+ shadow_pte->page_base_addr = PAGE_BASE_ADDR(shadow_pa);
+ PrintDebug("Test1\n");
+
+ shadow_pte->present = 1;
+
+ /* We are assuming that the PDE entry has precedence
+ * so the Shadow PDE will mirror the guest PDE settings,
+ * and we don't have to worry about them here
+ * Allow everything
+ */
+ shadow_pte->user_page = 1;
+
+
+
+/* if (find_pte_map(state->cached_ptes, PAGE_ADDR(guest_fault_pa)) != NULL) { */
+/* // Check if the entry is a page table... */
+/* PrintDebug("Marking page as Guest Page Table (large page)\n"); */
+/* shadow_pte->writable = 0; */
+/* } else */ if (shdw_reg->host_type == SHDW_REGION_WRITE_HOOK) {
+ shadow_pte->writable = 0;
+ } else {
+ shadow_pte->writable = 1;
+ }
+
+ //set according to VMM policy
+ shadow_pte->write_through = 0;
+ shadow_pte->cache_disable = 0;
+ shadow_pte->global_page = 0;
+ //
+
+ } else {
+ // Handle hooked pages as well as other special pages
+ // if (handle_special_page_fault(info, fault_addr, guest_fault_pa, error_code) == -1) {
+
+ if (v3_handle_mem_full_hook(info, fault_addr, guest_fault_pa, shdw_reg, error_code) == -1) {
+ PrintError("Special Page Fault handler returned error for address: %p\n", (void *)fault_addr);
+ return -1;
+ }
+ }
+ } else if (shadow_pte_access == PT_ACCESS_WRITE_ERROR) {
+
+ if (shdw_reg->host_type == SHDW_REGION_WRITE_HOOK) {
+
+ if (v3_handle_mem_wr_hook(info, fault_addr, guest_fault_pa, shdw_reg, error_code) == -1) {
+ PrintError("Special Page Fault handler returned error for address: %p\n", (void *)fault_addr);
+ return -1;
+ }
+ }
+
+
+/* if (find_pte_map(state->cached_ptes, PAGE_ADDR(guest_fault_pa)) != NULL) { */
+/* struct shadow_page_state * state = &(info->shdw_pg_state); */
+/* PrintDebug("Write operation on Guest PAge Table Page (large page)\n"); */
+/* state->cached_cr3 = 0; */
+/* shadow_pte->writable = 1; */
+/* } */
+
+ } else {
+ PrintError("Error in large page fault handler...\n");
+ PrintError("This case should have been handled at the top level handler\n");
+ return -1;
+ }
+
+ PrintHostPageTree(info, fault_addr, info->ctrl_regs.cr3);
+ PrintDebug("Returning from large page fault handler\n");
+ return 0;
+}
+
+
+
+
+
static inline int handle_shadow_invlpg_64(struct guest_info * info, addr_t vaddr) {
PrintError("64 bit shadow paging not implemented\n");
return -1;
