*host_pa = (addr_t)(os_hooks)->vaddr_to_paddr((void *)host_va);
if (*host_pa == 0) {
+ PrintDebug("In HVA->HPA: Invalid HVA(%x)->HPA lookup\n", host_va);
return -1;
}
} else {
+ PrintDebug("In HVA->HPA: os_hooks not defined\n");
return -1;
}
return 0;
*host_va = (addr_t)(os_hooks)->paddr_to_vaddr((void *)host_pa);
if (*host_va == 0) {
+ PrintDebug("In HPA->HVA: Invalid HPA(%x)->HVA lookup\n", host_pa);
return -1;
}
} else {
+ PrintDebug("In HPA->HVA: os_hooks not defined\n");
return -1;
}
return 0;
int guest_pa_to_host_pa(struct guest_info * guest_info, addr_t guest_pa, addr_t * host_pa) {
// we use the shadow map here...
if (lookup_shadow_map_addr(&(guest_info->mem_map), guest_pa, host_pa) != HOST_REGION_PHYSICAL_MEMORY) {
+ PrintDebug("In GPA->HPA: Could not find address in shadow map (addr=%x)\n", guest_pa);
return -1;
}
//
int host_pa_to_guest_pa(struct guest_info * guest_info, addr_t host_pa, addr_t * guest_pa) {
*guest_pa = 0;
+ PrintDebug("ERROR!!! HPA->GPA currently not implemented!!!\n");
return -1;
}
/* !! Currently not implemented !! */
// This will return negative until we implement host_pa_to_guest_pa()
int host_va_to_guest_pa(struct guest_info * guest_info, addr_t host_va, addr_t * guest_pa) {
- addr_t host_pa;
+ addr_t host_pa = 0;
*guest_pa = 0;
if (host_va_to_host_pa(host_va, &host_pa) != 0) {
+ PrintDebug("In HVA->GPA: Invalid HVA(%x)->HPA lookup\n", host_va);
return -1;
}
if (host_pa_to_guest_pa(guest_info, host_pa, guest_pa) != 0) {
+ PrintDebug("In HVA->GPA: Invalid HPA(%x)->GPA lookup\n", host_pa);
return -1;
}
int guest_pa_to_host_va(struct guest_info * guest_info, addr_t guest_pa, addr_t * host_va) {
- addr_t host_pa;
+ addr_t host_pa = 0;
*host_va = 0;
if (guest_pa_to_host_pa(guest_info, guest_pa, &host_pa) != 0) {
+ PrintDebug("In GPA->HVA: Invalid GPA(%x)->HPA lookup\n", guest_pa);
return -1;
}
if (host_pa_to_host_va(host_pa, host_va) != 0) {
+ PrintDebug("In GPA->HVA: Invalid HPA(%x)->HVA lookup\n", host_pa);
return -1;
}
return 0;
case PROTECTED_PG:
{
- addr_t tmp_pa;
- pde32_t * pde;
- addr_t guest_pde = CR3_TO_PDE32(guest_info->shdw_pg_state.guest_cr3.r_reg);
+ addr_t tmp_pa = 0;
+ pde32_t * pde = 0;
+ addr_t guest_pde = CR3_TO_PDE32(guest_info->shdw_pg_state.guest_cr3);
if (guest_pa_to_host_va(guest_info, guest_pde, (addr_t *)&pde) == -1) {
+ PrintDebug("In GVA->GPA: Invalid GPA(%x)->HVA PDE32 lookup\n", guest_pde);
return -1;
}
+
switch (pde32_lookup(pde, guest_va, &tmp_pa)) {
- case NOT_PRESENT:
+ case PDE32_ENTRY_NOT_PRESENT:
*guest_pa = 0;
return -1;
- case LARGE_PAGE:
+ case PDE32_ENTRY_LARGE_PAGE:
*guest_pa = tmp_pa;
return 0;
- case PTE32:
+ case PDE32_ENTRY_PTE32:
{
- pte32_t * pte;
+ pte32_t * pte = 0;
+
if (guest_pa_to_host_va(guest_info, tmp_pa, (addr_t*)&pte) == -1) {
+ PrintDebug("In GVA->GPA: Invalid GPA(%x)->HVA PTE32 lookup\n", guest_pa);
return -1;
}
+ PrintDebug("PTE host addr=%x, GVA=%x, GPA=%x(should be 0)\n", pte, guest_va, *guest_pa);
+
if (pte32_lookup(pte, guest_va, guest_pa) != 0) {
+ PrintDebug("In GVA->GPA: PTE32 Lookup failure GVA=%x; PTE=%x\n", guest_va, pte);
+ // PrintPT32(PDE32_INDEX(guest_va) << 22, pte);
return -1;
}
*/
int guest_pa_to_guest_va(struct guest_info * guest_info, addr_t guest_pa, addr_t * guest_va) {
*guest_va = 0;
+ PrintDebug("ERROR!!: GPA->GVA Not Implemented!!\n");
return -1;
}
int guest_va_to_host_pa(struct guest_info * guest_info, addr_t guest_va, addr_t * host_pa) {
- addr_t guest_pa;
+ addr_t guest_pa = 0;
*host_pa = 0;
if (guest_va_to_guest_pa(guest_info, guest_va, &guest_pa) != 0) {
+ PrintDebug("In GVA->HPA: Invalid GVA(%x)->GPA lookup\n", guest_va);
return -1;
}
if (guest_pa_to_host_pa(guest_info, guest_pa, host_pa) != 0) {
+ PrintDebug("In GVA->HPA: Invalid GPA(%x)->HPA lookup\n", guest_pa);
return -1;
}
/* !! Currently not implemented !! */
int host_pa_to_guest_va(struct guest_info * guest_info, addr_t host_pa, addr_t * guest_va) {
- addr_t guest_pa;
+ addr_t guest_pa = 0;
*guest_va = 0;
if (host_pa_to_guest_pa(guest_info, host_pa, &guest_pa) != 0) {
+ PrintDebug("In HPA->GVA: Invalid HPA(%x)->GPA lookup\n", host_pa);
return -1;
}
if (guest_pa_to_guest_va(guest_info, guest_pa, guest_va) != 0) {
+ PrintDebug("In HPA->GVA: Invalid GPA(%x)->GVA lookup\n", guest_pa);
return -1;
}
int guest_va_to_host_va(struct guest_info * guest_info, addr_t guest_va, addr_t * host_va) {
- addr_t guest_pa;
- addr_t host_pa;
+ addr_t guest_pa = 0;
+ addr_t host_pa = 0;
*host_va = 0;
if (guest_va_to_guest_pa(guest_info, guest_va, &guest_pa) != 0) {
+ PrintDebug("In GVA->HVA: Invalid GVA(%x)->GPA lookup\n", guest_va);
return -1;
}
if (guest_pa_to_host_pa(guest_info, guest_pa, &host_pa) != 0) {
+ PrintDebug("In GVA->HVA: Invalid GPA(%x)->HPA lookup\n", guest_pa);
return -1;
}
if (host_pa_to_host_va(host_pa, host_va) != 0) {
+ PrintDebug("In GVA->HVA: Invalid HPA(%x)->HVA lookup\n", host_pa);
return -1;
}
/* !! Currently not implemented !! */
int host_va_to_guest_va(struct guest_info * guest_info, addr_t host_va, addr_t * guest_va) {
- addr_t host_pa;
- addr_t guest_pa;
+ addr_t host_pa = 0;
+ addr_t guest_pa = 0;
*guest_va = 0;
if (host_va_to_host_pa(host_va, &host_pa) != 0) {
+ PrintDebug("In HVA->GVA: Invalid HVA(%x)->HPA lookup\n", host_va);
return -1;
}
if (host_pa_to_guest_pa(guest_info, host_pa, &guest_pa) != 0) {
+ PrintDebug("In HVA->GVA: Invalid HPA(%x)->GPA lookup\n", host_va);
return -1;
}
if (guest_pa_to_guest_va(guest_info, guest_pa, guest_va) != 0) {
+ PrintDebug("In HVA->GVA: Invalid GPA(%x)->GVA lookup\n", guest_pa);
return -1;
}
addr_t cursor = guest_va;
int bytes_read = 0;
+
+
while (count > 0) {
- int dist_to_pg_edge = (PAGE_OFFSET(cursor) + PAGE_SIZE) - cursor;
+ int dist_to_pg_edge = (PAGE_ADDR(cursor) + PAGE_SIZE) - cursor;
int bytes_to_copy = (dist_to_pg_edge > count) ? count : dist_to_pg_edge;
- addr_t host_addr;
+ addr_t host_addr = 0;
if (guest_va_to_host_va(guest_info, cursor, &host_addr) != 0) {
+ PrintDebug("Invalid GVA(%x)->HVA lookup\n", cursor);
return bytes_read;
}
int bytes_read = 0;
while (count > 0) {
- int dist_to_pg_edge = (PAGE_OFFSET(cursor) + PAGE_SIZE) - cursor;
+ int dist_to_pg_edge = (PAGE_ADDR(cursor) + PAGE_SIZE) - cursor;
int bytes_to_copy = (dist_to_pg_edge > count) ? count : dist_to_pg_edge;
- addr_t host_addr;
+ addr_t host_addr = 0;
if (guest_pa_to_host_va(guest_info, cursor, &host_addr) != 0) {
return bytes_read;
}
+
+ /*
+ PrintDebug("Trying to read %d bytes\n", bytes_to_copy);
+ PrintDebug("Dist to page edge=%d\n", dist_to_pg_edge);
+ PrintDebug("PAGE_ADDR=0x%x\n", PAGE_ADDR(cursor));
+ PrintDebug("guest_pa=0x%x\n", guest_pa);
+ */
+
memcpy(dest + bytes_read, (void*)host_addr, bytes_to_copy);
bytes_read += bytes_to_copy;
count -= bytes_to_copy;
- cursor += bytes_to_copy;
+ cursor += bytes_to_copy;
}
return bytes_read;
int bytes_written = 0;
while (count > 0) {
- int dist_to_pg_edge = (PAGE_OFFSET(cursor) + PAGE_SIZE) - cursor;
+ int dist_to_pg_edge = (PAGE_ADDR(cursor) + PAGE_SIZE) - cursor;
int bytes_to_copy = (dist_to_pg_edge > count) ? count : dist_to_pg_edge;
addr_t host_addr;
return bytes_written;
}
+
memcpy((void*)host_addr, src + bytes_written, bytes_to_copy);
-
+
bytes_written += bytes_to_copy;
count -= bytes_to_copy;
cursor += bytes_to_copy;