#include <palacios/vmm.h>
#include <palacios/vmm_paging.h>
-extern struct vmm_os_hooks * os_hooks;
+#ifndef V3_CONFIG_DEBUG_MEM_ERRORS
+#undef PrintDebug
+#define PrintDebug(fmt, args...)
+#endif
+
+extern struct v3_os_hooks * os_hooks;
/**********************************/
/* GROUP 0 */
/**********************************/
-int host_va_to_host_pa(addr_t host_va, addr_t * host_pa) {
- if ((os_hooks) && (os_hooks)->vaddr_to_paddr) {
+int v3_hva_to_hpa(addr_t hva, addr_t * hpa) {
+ if ((os_hooks) && (os_hooks)->vaddr_to_paddr) {
- *host_pa = (addr_t)(os_hooks)->vaddr_to_paddr((void *)host_va);
+ *hpa = (addr_t)(os_hooks)->vaddr_to_paddr((void *)hva);
- if (*host_pa == 0) {
- PrintError("In HVA->HPA: Invalid HVA(%x)->HPA lookup\n", host_va);
- return -1;
+ if (*hpa == 0) {
+ PrintDebug(VM_NONE, VCORE_NONE, "In HVA->HPA: Invalid HVA(%p)->HPA lookup\n",
+ (void *)hva);
+ return -1;
+ }
+ } else {
+ PrintDebug(VM_NONE, VCORE_NONE,"In HVA->HPA: os_hooks not defined\n");
+ return -1;
}
- } else {
- PrintError("In HVA->HPA: os_hooks not defined\n");
- return -1;
- }
- return 0;
+ return 0;
}
-int host_pa_to_host_va(addr_t host_pa, addr_t * host_va) {
- if ((os_hooks) && (os_hooks)->paddr_to_vaddr) {
+int v3_hpa_to_hva(addr_t hpa, addr_t * hva) {
+ if ((os_hooks) && (os_hooks)->paddr_to_vaddr) {
- *host_va = (addr_t)(os_hooks)->paddr_to_vaddr((void *)host_pa);
+ *hva = (addr_t)(os_hooks)->paddr_to_vaddr((void *)hpa);
- if (*host_va == 0) {
- PrintError("In HPA->HVA: Invalid HPA(%x)->HVA lookup\n", host_pa);
- return -1;
+ if (*hva == 0) {
+ PrintDebug(VM_NONE, VCORE_NONE,"In HPA->HVA: Invalid HPA(%p)->HVA lookup\n",
+ (void *)hpa);
+ return -1;
+ }
+ } else {
+ PrintDebug(VM_NONE, VCORE_NONE,"In HPA->HVA: os_hooks not defined\n");
+ return -1;
}
- } else {
- PrintError("In HPA->HVA: os_hooks not defined\n");
- return -1;
- }
- return 0;
+ return 0;
}
+int v3_gpa_to_hpa(struct guest_info * info, addr_t gpa, addr_t * hpa) {
+ struct v3_mem_region * reg = v3_get_mem_region(info->vm_info, info->vcpu_id, gpa);
+ if (reg == NULL) {
+ PrintDebug(info->vm_info,info,"In GPA->HPA: Could not find address in shadow map (addr=%p) (NULL REGION)\n",
+ (void *)gpa);
+ return -1;
+ }
+
+ if (reg->flags.alloced == 0) {
+ //PrintDebug(info->vm_info, info, "In GPA->HPA: Tried to translate physical address of non allocated page (addr=%p)\n",
+ // (void *)gpa);
+ //v3_print_mem_map(info->vm_info);
+ return -1;
+ }
+
+ *hpa = (gpa - reg->guest_start) + reg->host_addr;
-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) {
- PrintError("In GPA->HPA: Could not find address in shadow map (addr=%x)\n", guest_pa);
- return -1;
- }
-
- return 0;
+ return 0;
}
// This is a scan of the shadow map
// For now we ignore it
//
-int host_pa_to_guest_pa(struct guest_info * guest_info, addr_t host_pa, addr_t * guest_pa) {
- *guest_pa = 0;
- PrintError("ERROR!!! HPA->GPA currently not implemented!!!\n");
+int v3_hpa_to_gpa(struct guest_info * guest_info, addr_t hpa, addr_t * gpa) {
+ *gpa = 0;
+ PrintDebug(guest_info->vm_info, guest_info, "ERROR!!! HPA->GPA currently not implemented!!!\n");
- return -1;
+ 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 = 0;
- *guest_pa = 0;
-
- if (host_va_to_host_pa(host_va, &host_pa) != 0) {
- PrintError("In HVA->GPA: Invalid HVA(%x)->HPA lookup\n", host_va);
- return -1;
- }
+// This will return negative until we implement hpa_to_guest_pa()
+int v3_hva_to_gpa(struct guest_info * guest_info, addr_t hva, addr_t * gpa) {
+ addr_t hpa = 0;
+ *gpa = 0;
+
+ if (v3_hva_to_hpa(hva, &hpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HVA->GPA: Invalid HVA(%p)->HPA lookup\n",
+ (void *)hva);
+ return -1;
+ }
- if (host_pa_to_guest_pa(guest_info, host_pa, guest_pa) != 0) {
- PrintError("In HVA->GPA: Invalid HPA(%x)->GPA lookup\n", host_pa);
- return -1;
- }
+ if (v3_hpa_to_gpa(guest_info, hpa, gpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HVA->GPA: Invalid HPA(%p)->GPA lookup\n",
+ (void *)hpa);
+ return -1;
+ }
- return 0;
+ return 0;
}
-int guest_pa_to_host_va(struct guest_info * guest_info, addr_t guest_pa, addr_t * host_va) {
- addr_t host_pa = 0;
+int v3_gpa_to_hva(struct guest_info * guest_info, addr_t gpa, addr_t * hva) {
+ addr_t hpa = 0;
- *host_va = 0;
+ *hva = 0;
- if (guest_pa_to_host_pa(guest_info, guest_pa, &host_pa) != 0) {
- PrintError("In GPA->HVA: Invalid GPA(%x)->HPA lookup\n", guest_pa);
- return -1;
- }
+ if (v3_gpa_to_hpa(guest_info, gpa, &hpa) != 0) {
+ // PrintDebug(guest_info->vm_info, guest_info, "In GPA->HVA: Invalid GPA(%p)->HPA lookup\n",
+ // (void *)gpa);
+ return -1;
+ }
- if (host_pa_to_host_va(host_pa, host_va) != 0) {
- PrintError("In GPA->HVA: Invalid HPA(%x)->HVA lookup\n", host_pa);
- return -1;
- }
+ if (v3_hpa_to_hva(hpa, hva) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In GPA->HVA: Invalid HPA(%p)->HVA lookup\n",
+ (void *)hpa);
+ return -1;
+ }
- return 0;
+ return 0;
}
-int guest_va_to_guest_pa(struct guest_info * guest_info, addr_t guest_va, addr_t * guest_pa) {
- if (guest_info->mem_mode == PHYSICAL_MEM) {
- // guest virtual address is the same as the physical
- *guest_pa = guest_va;
- return 0;
- }
-
-
-
- // Guest Is in Paged mode
- switch (guest_info->cpu_mode) {
- case PROTECTED:
- {
- addr_t tmp_pa = 0;
- pde32_t * pde = 0;
- addr_t guest_pde = 0;
-
- if (guest_info->shdw_pg_mode == SHADOW_PAGING) {
- guest_pde = CR3_TO_PDE32(guest_info->shdw_pg_state.guest_cr3);
- } else if (guest_info->shdw_pg_mode == NESTED_PAGING) {
- guest_pde = CR3_TO_PDE32(guest_info->ctrl_regs.cr3);
- }
-
- if (guest_pa_to_host_va(guest_info, guest_pde, (addr_t *)&pde) == -1) {
- PrintError("In GVA->GPA: Invalid GPA(%x)->HVA PDE32 lookup\n", guest_pde);
- return -1;
- }
-
-
- switch (pde32_lookup(pde, guest_va, &tmp_pa)) {
- case PDE32_ENTRY_NOT_PRESENT:
- *guest_pa = 0;
- return -1;
- case PDE32_ENTRY_LARGE_PAGE:
- *guest_pa = tmp_pa;
+int v3_gva_to_gpa(struct guest_info * guest_info, addr_t gva, addr_t * gpa) {
+ v3_reg_t guest_cr3 = 0;
+
+ if (guest_info->mem_mode == PHYSICAL_MEM) {
+ // guest virtual address is the same as the physical
+ *gpa = gva;
return 0;
- case PDE32_ENTRY_PTE32:
- {
- pte32_t * pte = 0;
-
-
- if (guest_pa_to_host_va(guest_info, tmp_pa, (addr_t*)&pte) == -1) {
- PrintError("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) {
- PrintError("In GVA->GPA: PTE32 Lookup failure GVA=%x; PTE=%x\n", guest_va, pte);
- // PrintPT32(PDE32_INDEX(guest_va) << 22, pte);
- return -1;
- }
-
- return 0;
- }
- default:
- return -1;
- }
}
- case PROTECTED_PAE:
- {
- // Fill in
+
+ if (guest_info->shdw_pg_mode == SHADOW_PAGING) {
+ guest_cr3 = guest_info->shdw_pg_state.guest_cr3;
+ } else {
+ guest_cr3 = guest_info->ctrl_regs.cr3;
}
- case LONG:
- {
- // Fill in
+
+
+ // Guest Is in Paged mode
+ switch (guest_info->cpu_mode) {
+ case PROTECTED:
+ if (v3_translate_guest_pt_32(guest_info, guest_cr3, gva, gpa) == -1) {
+ PrintDebug(guest_info->vm_info, guest_info, "Could not translate addr (%p) through 32 bit guest PT at %p\n",
+ (void *)gva, (void *)(addr_t)guest_cr3);
+ return -1;
+ }
+ break;
+ case PROTECTED_PAE:
+ if (v3_translate_guest_pt_32pae(guest_info, guest_cr3, gva, gpa) == -1) {
+ PrintDebug(guest_info->vm_info, guest_info, "Could not translate addr (%p) through 32 bitpae guest PT at %p\n",
+ (void *)gva, (void *)(addr_t)guest_cr3);
+ return -1;
+ }
+ break;
+ case LONG:
+ case LONG_32_COMPAT:
+ case LONG_16_COMPAT:
+ if (v3_translate_guest_pt_64(guest_info, guest_cr3, gva, gpa) == -1) {
+ PrintDebug(guest_info->vm_info, guest_info, "Could not translate addr (%p) through 64 bit guest PT at %p\n",
+ (void *)gva, (void *)(addr_t)guest_cr3);
+ return -1;
+ }
+ break;
+ default:
+ return -1;
}
- default:
- return -1;
- }
-
-
- return 0;
+ return 0;
}
*
* For now we ignore it...
*/
-int guest_pa_to_guest_va(struct guest_info * guest_info, addr_t guest_pa, addr_t * guest_va) {
- *guest_va = 0;
- PrintError("ERROR!!: GPA->GVA Not Implemented!!\n");
- return -1;
+int v3_gpa_to_gva(struct guest_info * guest_info, addr_t gpa, addr_t * gva) {
+ *gva = 0;
+ PrintDebug(guest_info->vm_info, guest_info, "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 = 0;
+int v3_gva_to_hpa(struct guest_info * guest_info, addr_t gva, addr_t * hpa) {
+ addr_t gpa = 0;
- *host_pa = 0;
+ *hpa = 0;
- if (guest_va_to_guest_pa(guest_info, guest_va, &guest_pa) != 0) {
- PrintError("In GVA->HPA: Invalid GVA(%x)->GPA lookup\n", guest_va);
- return -1;
- }
+ if (v3_gva_to_gpa(guest_info, gva, &gpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In GVA->HPA: Invalid GVA(%p)->GPA lookup\n",
+ (void *)gva);
+ return -1;
+ }
- if (guest_pa_to_host_pa(guest_info, guest_pa, host_pa) != 0) {
- PrintError("In GVA->HPA: Invalid GPA(%x)->HPA lookup\n", guest_pa);
- return -1;
- }
+ if (v3_gpa_to_hpa(guest_info, gpa, hpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In GVA->HPA: Invalid GPA(%p)->HPA lookup\n",
+ (void *)gpa);
+ return -1;
+ }
- return 0;
+ return 0;
}
/* !! 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 = 0;
+int v3_hpa_to_gva(struct guest_info * guest_info, addr_t hpa, addr_t * gva) {
+ addr_t gpa = 0;
- *guest_va = 0;
+ *gva = 0;
- if (host_pa_to_guest_pa(guest_info, host_pa, &guest_pa) != 0) {
- PrintError("In HPA->GVA: Invalid HPA(%x)->GPA lookup\n", host_pa);
- return -1;
- }
+ if (v3_hpa_to_gpa(guest_info, hpa, &gpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HPA->GVA: Invalid HPA(%p)->GPA lookup\n",
+ (void *)hpa);
+ return -1;
+ }
- if (guest_pa_to_guest_va(guest_info, guest_pa, guest_va) != 0) {
- PrintError("In HPA->GVA: Invalid GPA(%x)->GVA lookup\n", guest_pa);
- return -1;
- }
+ if (v3_gpa_to_gva(guest_info, gpa, gva) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HPA->GVA: Invalid GPA(%p)->GVA lookup\n",
+ (void *)gpa);
+ return -1;
+ }
- return 0;
+ return 0;
}
-int guest_va_to_host_va(struct guest_info * guest_info, addr_t guest_va, addr_t * host_va) {
- addr_t guest_pa = 0;
- addr_t host_pa = 0;
+int v3_gva_to_hva(struct guest_info * guest_info, addr_t gva, addr_t * hva) {
+ addr_t gpa = 0;
+ addr_t hpa = 0;
- *host_va = 0;
+ *hva = 0;
- if (guest_va_to_guest_pa(guest_info, guest_va, &guest_pa) != 0) {
- PrintError("In GVA->HVA: Invalid GVA(%x)->GPA lookup\n", guest_va);
- return -1;
- }
+ if (v3_gva_to_gpa(guest_info, gva, &gpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In GVA->HVA: Invalid GVA(%p)->GPA lookup\n",
+ (void *)gva);
+ return -1;
+ }
- if (guest_pa_to_host_pa(guest_info, guest_pa, &host_pa) != 0) {
- PrintError("In GVA->HVA: Invalid GPA(%x)->HPA lookup\n", guest_pa);
- return -1;
- }
+ if (v3_gpa_to_hpa(guest_info, gpa, &hpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In GVA->HVA: Invalid GPA(%p)->HPA lookup\n",
+ (void *)gpa);
+ return -1;
+ }
- if (host_pa_to_host_va(host_pa, host_va) != 0) {
- PrintError("In GVA->HVA: Invalid HPA(%x)->HVA lookup\n", host_pa);
- return -1;
- }
+ if (v3_hpa_to_hva(hpa, hva) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In GVA->HVA: Invalid HPA(%p)->HVA lookup\n",
+ (void *)hpa);
+ return -1;
+ }
- return 0;
+ return 0;
}
/* !! 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 = 0;
- addr_t guest_pa = 0;
+int v3_hva_to_gva(struct guest_info * guest_info, addr_t hva, addr_t * gva) {
+ addr_t hpa = 0;
+ addr_t gpa = 0;
- *guest_va = 0;
+ *gva = 0;
- if (host_va_to_host_pa(host_va, &host_pa) != 0) {
- PrintError("In HVA->GVA: Invalid HVA(%x)->HPA lookup\n", host_va);
- return -1;
- }
+ if (v3_hva_to_hpa(hva, &hpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HVA->GVA: Invalid HVA(%p)->HPA lookup\n",
+ (void *)hva);
+ return -1;
+ }
- if (host_pa_to_guest_pa(guest_info, host_pa, &guest_pa) != 0) {
- PrintError("In HVA->GVA: Invalid HPA(%x)->GPA lookup\n", host_va);
- return -1;
- }
+ if (v3_hpa_to_gpa(guest_info, hpa, &gpa) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HVA->GVA: Invalid HPA(%p)->GPA lookup\n",
+ (void *)hva);
+ return -1;
+ }
- if (guest_pa_to_guest_va(guest_info, guest_pa, guest_va) != 0) {
- PrintError("In HVA->GVA: Invalid GPA(%x)->GVA lookup\n", guest_pa);
- return -1;
- }
+ if (v3_gpa_to_gva(guest_info, gpa, gva) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "In HVA->GVA: Invalid GPA(%p)->GVA lookup\n",
+ (void *)gpa);
+ return -1;
+ }
- return 0;
+ return 0;
}
/* This is a straight address conversion + copy,
* except for the tiny little issue of crossing page boundries.....
*/
-int read_guest_va_memory(struct guest_info * guest_info, addr_t guest_va, int count, char * dest) {
- addr_t cursor = guest_va;
- int bytes_read = 0;
+int v3_read_gva_memory(struct guest_info * guest_info, addr_t gva, int count, uchar_t * dest) {
+ addr_t cursor = gva;
+ int bytes_read = 0;
- while (count > 0) {
- 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 = 0;
+ while (count > 0) {
+ 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 = 0;
- if (guest_va_to_host_va(guest_info, cursor, &host_addr) != 0) {
- PrintDebug("Invalid GVA(%x)->HVA lookup\n", cursor);
- return bytes_read;
- }
+ if (v3_gva_to_hva(guest_info, cursor, &host_addr) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "Invalid GVA(%p)->HVA lookup\n", (void *)cursor);
+ return bytes_read;
+ }
- memcpy(dest + bytes_read, (void*)host_addr, bytes_to_copy);
+ memcpy(dest + bytes_read, (void*)host_addr, bytes_to_copy);
- bytes_read += bytes_to_copy;
- count -= bytes_to_copy;
- cursor += bytes_to_copy;
- }
+ bytes_read += bytes_to_copy;
+ count -= bytes_to_copy;
+ cursor += bytes_to_copy;
+ }
- return bytes_read;
+ return bytes_read;
}
/* This is a straight address conversion + copy,
* except for the tiny little issue of crossing page boundries.....
*/
-int read_guest_pa_memory(struct guest_info * guest_info, addr_t guest_pa, int count, char * dest) {
- addr_t cursor = guest_pa;
- int bytes_read = 0;
-
- while (count > 0) {
- 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 = 0;
-
- if (guest_pa_to_host_va(guest_info, cursor, &host_addr) != 0) {
- return bytes_read;
- }
+int v3_read_gpa_memory(struct guest_info * guest_info, addr_t gpa, int count, uchar_t * dest) {
+ addr_t cursor = gpa;
+ int bytes_read = 0;
+
+ while (count > 0) {
+ 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 = 0;
+
+ if (v3_gpa_to_hva(guest_info, cursor, &host_addr) != 0) {
+ return bytes_read;
+ }
+
+ /*
+ PrintDebug(info->vm_info, info, "Trying to read %d bytes\n", bytes_to_copy);
+ PrintDebug(info->vm_info, info, "Dist to page edge=%d\n", dist_to_pg_edge);
+ PrintDebug(info->vm_info, info, "PAGE_ADDR=0x%x\n", PAGE_ADDR(cursor));
+ PrintDebug(info->vm_info, info, "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;
+ }
+
+ return bytes_read;
+}
+
+
+/* This clones v3_read_gva_memory
+ * We write only as far as page translations are available
+ */
+int v3_write_gva_memory(struct guest_info * guest_info, addr_t gva, int count, uchar_t * src) {
+ addr_t cursor = gva;
+ int bytes_written = 0;
+
+
+
+ while (count > 0) {
+ 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 = 0;
+
+
+ if (v3_gva_to_hva(guest_info, cursor, &host_addr) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "Invalid GVA(%p)->HVA lookup\n", (void *)cursor);
+ return bytes_written;
+ }
- /*
- 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;
- }
+ memcpy((void*)host_addr,
+ src + bytes_written,
+ bytes_to_copy);
+
+ bytes_written += bytes_to_copy;
+ count -= bytes_to_copy;
+ cursor += bytes_to_copy;
+ }
- return bytes_read;
+ return bytes_written;
+}
+
+int v3_set_gva_memory(struct guest_info * guest_info, addr_t gva, int count, uchar_t src) {
+ addr_t cursor = gva;
+ int bytes_written = 0;
+
+
+
+ while (count > 0) {
+ 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 = 0;
+
+
+ if (v3_gva_to_hva(guest_info, cursor, &host_addr) != 0) {
+ PrintDebug(guest_info->vm_info, guest_info, "Invalid GVA(%p)->HVA lookup\n", (void *)cursor);
+ return bytes_written;
+ }
+
+
+
+ memset((void*)host_addr,
+ src,
+ bytes_to_copy);
+
+ bytes_written += bytes_to_copy;
+ count -= bytes_to_copy;
+ cursor += bytes_to_copy;
+ }
+
+ return bytes_written;
}
/* This is a straight address conversion + copy,
* except for the tiny little issue of crossing page boundries.....
*/
-int write_guest_pa_memory(struct guest_info * guest_info, addr_t guest_pa, int count, char * src) {
- addr_t cursor = guest_pa;
- int bytes_written = 0;
+int v3_write_gpa_memory(struct guest_info * guest_info, addr_t gpa, int count, uchar_t * src) {
+ addr_t cursor = gpa;
+ int bytes_written = 0;
+
+ while (count > 0) {
+ 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;
+
+ if (v3_gpa_to_hva(guest_info, cursor, &host_addr) != 0) {
+ return bytes_written;
+ }
+
- while (count > 0) {
- 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;
+ memcpy((void*)host_addr, src + bytes_written, bytes_to_copy);
- if (guest_pa_to_host_va(guest_info, cursor, &host_addr) != 0) {
- return bytes_written;
+ bytes_written += bytes_to_copy;
+ count -= bytes_to_copy;
+ cursor += bytes_to_copy;
}
+ return bytes_written;
+}
+
+
+int v3_set_gpa_memory(struct guest_info * guest_info, addr_t gpa, int count, uchar_t src) {
+ addr_t cursor = gpa;
+ int bytes_written = 0;
+
+ while (count > 0) {
+ 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;
+
+ if (v3_gpa_to_hva(guest_info, cursor, &host_addr) != 0) {
+ 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;
- }
+ memset((void*)host_addr, src, bytes_to_copy);
+
+ bytes_written += bytes_to_copy;
+ count -= bytes_to_copy;
+ cursor += bytes_to_copy;
+ }
- return bytes_written;
+ return bytes_written;
}
