X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_direct_paging_64.h;h=6afb9fb88f7ecad95383935f314f8fb6e11c2867;hb=d240aa16811174593dc6e6ca9c796db05948c353;hp=c428352dcd85dae0261c606a3ab7a17f3daa10a6;hpb=40d79cccadcdeb5b4744bf965030b40b0d5cb1fb;p=palacios.git

diff --git a/palacios/src/palacios/vmm_direct_paging_64.h b/palacios/src/palacios/vmm_direct_paging_64.h
index c428352..6afb9fb 100644
--- a/palacios/src/palacios/vmm_direct_paging_64.h
+++ b/palacios/src/palacios/vmm_direct_paging_64.h
@@ -27,9 +27,12 @@
 #include <palacios/vm_guest_mem.h>
 #include <palacios/vm_guest.h>
 
+/* this always builds 4 level page tables, but large pages are allowed */
+
 // Reference: AMD Software Developer Manual Vol.2 Ch.5 "Page Translation and Protection"
 
-static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr_t fault_addr, pf_error_t error_code) {
+static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr_t fault_addr, pf_error_t error_code,
+						  addr_t *actual_start, addr_t *actual_end) {
     pml4e64_t * pml      = NULL;
     pdpe64_t * pdpe      = NULL;
     pde64_t * pde        = NULL;
@@ -42,11 +45,11 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
     int pde_index  = PDE64_INDEX(fault_addr);
     int pte_index  = PTE64_INDEX(fault_addr);
 
-    struct v3_mem_region * region =  v3_get_mem_region(core->vm_info, core->cpu_id, fault_addr);
+    struct v3_mem_region * region =  v3_get_mem_region(core->vm_info, core->vcpu_id, fault_addr);
     int page_size = PAGE_SIZE_4KB;
 
     if (region == NULL) {
-	PrintError("%s: invalid region, addr=%p\n", __FUNCTION__, (void *)fault_addr);
+	PrintError(core->vm_info, core, "%s: invalid region, addr=%p\n", __FUNCTION__, (void *)fault_addr);
 	return -1;
     }
 
@@ -58,7 +61,7 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 	page_size = v3_get_max_page_size(core, fault_addr, LONG);
     }
 
-    PrintDebug("Using page size of %dKB\n", page_size / 1024);
+    PrintDebug(core->vm_info, core, "Using page size of %dKB\n", page_size / 1024);
 
  
     // Lookup the correct PML address based on the PAGING MODE
@@ -70,7 +73,7 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 
     //Fix up the PML entry
     if (pml[pml_index].present == 0) {
-	pdpe = (pdpe64_t *)create_generic_pt_page();
+	pdpe = (pdpe64_t *)create_generic_pt_page(core);
    
 	// Set default PML Flags...
 	pml[pml_index].present = 1;
@@ -84,7 +87,7 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 
     // Fix up the PDPE entry
     if (pdpe[pdpe_index].present == 0) {
-	pde = (pde64_t *)create_generic_pt_page();
+	pde = (pde64_t *)create_generic_pt_page(core);
 	
 	// Set default PDPE Flags...
 	pdpe[pdpe_index].present = 1;
@@ -101,6 +104,9 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 	pde2mb = (pde64_2MB_t *)pde; // all but these two lines are the same for PTE
 	pde2mb[pde_index].large_page = 1;
 
+	*actual_start = BASE_TO_PAGE_ADDR_2MB(PAGE_BASE_ADDR_2MB(fault_addr));
+	*actual_end = BASE_TO_PAGE_ADDR_2MB(PAGE_BASE_ADDR_2MB(fault_addr)+1)-1;
+
 	if (pde2mb[pde_index].present == 0) {
 	    pde2mb[pde_index].user_page = 1;
 
@@ -116,7 +122,7 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 		}
 
 		if (v3_gpa_to_hpa(core, fault_addr, &host_addr) == -1) {
-		    PrintError("Error Could not translate fault addr (%p)\n", (void *)fault_addr);
+		    PrintError(core->vm_info, core, "Error Could not translate fault addr (%p)\n", (void *)fault_addr);
 		    return -1;
 		}
 
@@ -137,9 +143,12 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 
     // Continue with the 4KiB page heirarchy
     
+    *actual_start = BASE_TO_PAGE_ADDR_4KB(PAGE_BASE_ADDR_4KB(fault_addr));
+    *actual_end = BASE_TO_PAGE_ADDR_4KB(PAGE_BASE_ADDR_4KB(fault_addr)+1)-1;
+
     // Fix up the PDE entry
     if (pde[pde_index].present == 0) {
-	pte = (pte64_t *)create_generic_pt_page();
+	pte = (pte64_t *)create_generic_pt_page(core);
 	
 	pde[pde_index].present = 1;
 	pde[pde_index].writable = 1;
@@ -166,7 +175,7 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
 	    }
 
     	    if (v3_gpa_to_hpa(core, fault_addr, &host_addr) == -1) {
-		PrintError("Error Could not translate fault addr (%p)\n", (void *)fault_addr);
+		PrintError(core->vm_info, core, "Error Could not translate fault addr (%p)\n", (void *)fault_addr);
 		return -1;
    	    }
 
@@ -184,7 +193,8 @@ static inline int handle_passthrough_pagefault_64(struct guest_info * core, addr
     return 0;
 }
 
-static inline int invalidate_addr_64(struct guest_info * core, addr_t inv_addr) {
+static inline int invalidate_addr_64_internal(struct guest_info * core, addr_t inv_addr,
+					      addr_t *actual_start, uint64_t *actual_size) {
     pml4e64_t * pml = NULL;
     pdpe64_t * pdpe = NULL;
     pde64_t * pde = NULL;
@@ -209,28 +219,38 @@ static inline int invalidate_addr_64(struct guest_info * core, addr_t inv_addr)
     }
 
     if (pml[pml_index].present == 0) {
-	return 0;
+        *actual_start = BASE_TO_PAGE_ADDR_512GB(PAGE_BASE_ADDR_512GB(inv_addr));
+        *actual_size = PAGE_SIZE_512GB;
+ 	return 0;
     }
 
     pdpe = V3_VAddr((void*)BASE_TO_PAGE_ADDR(pml[pml_index].pdp_base_addr));
 
     if (pdpe[pdpe_index].present == 0) {
+        *actual_start = BASE_TO_PAGE_ADDR_1GB(PAGE_BASE_ADDR_1GB(inv_addr));
+        *actual_size = PAGE_SIZE_1GB;
 	return 0;
     } else if (pdpe[pdpe_index].large_page == 1) { // 1GiB
 	pdpe[pdpe_index].present = 0;
 	pdpe[pdpe_index].writable = 0;
 	pdpe[pdpe_index].user_page = 0;
+        *actual_start = BASE_TO_PAGE_ADDR_1GB(PAGE_BASE_ADDR_1GB(inv_addr));
+        *actual_size = PAGE_SIZE_1GB;
 	return 0;
     }
 
     pde = V3_VAddr((void*)BASE_TO_PAGE_ADDR(pdpe[pdpe_index].pd_base_addr));
 
     if (pde[pde_index].present == 0) {
+        *actual_start = BASE_TO_PAGE_ADDR_2MB(PAGE_BASE_ADDR_2MB(inv_addr));
+        *actual_size = PAGE_SIZE_2MB;
 	return 0;
     } else if (pde[pde_index].large_page == 1) { // 2MiB
 	pde[pde_index].present = 0;
 	pde[pde_index].writable = 0;
 	pde[pde_index].user_page = 0;
+        *actual_start = BASE_TO_PAGE_ADDR_2MB(PAGE_BASE_ADDR_2MB(inv_addr));
+        *actual_size = PAGE_SIZE_2MB;
 	return 0;
     }
 
@@ -240,9 +260,50 @@ static inline int invalidate_addr_64(struct guest_info * core, addr_t inv_addr)
     pte[pte_index].writable = 0;
     pte[pte_index].user_page = 0;
 
+    *actual_start = BASE_TO_PAGE_ADDR_4KB(PAGE_BASE_ADDR_4KB(inv_addr));
+    *actual_size = PAGE_SIZE_4KB;
+
     return 0;
 }
 
+static inline int invalidate_addr_64(struct guest_info * core, addr_t inv_addr, 
+				     addr_t *actual_start, addr_t *actual_end)
+{
+  uint64_t len;
+  int rc;
+  
+  rc = invalidate_addr_64_internal(core,inv_addr,actual_start,&len);
+
+  *actual_end = *actual_start + len - 1;
+
+  return rc;
+}
+   
+static inline int invalidate_addr_64_range(struct guest_info * core, addr_t inv_addr_start, addr_t inv_addr_end, 
+					   addr_t *actual_start, addr_t *actual_end)
+{
+  addr_t next;
+  addr_t start;
+  uint64_t len;
+  int rc;
+  
+  for (next=inv_addr_start; next<=inv_addr_end; ) {
+    rc = invalidate_addr_64_internal(core,next,&start, &len);
+    if (next==inv_addr_start) { 
+      // first iteration, capture where we start invalidating
+      *actual_start = start;
+    }
+    if (rc) { 
+      return rc;
+    }
+    next = start + len;
+    *actual_end = next;
+  }
+  // last iteration, actual_end is off by one
+  (*actual_end)--;
+  return 0;
+}
+
 
 
 #endif