ACPICA: Tables: Fix the issues in handling virtual addressed tables.

When table is overridden or reloaded, acpi_tb_delete_table() is called where
struct acpi_table_desc.Pointer will be NULL.  It thus is impossible for virtual
addressed tables to obtain the .Pointer again in acpi_tb_verify_table().

This patch stores virtual table addresses  (ACPI_TABLE_ORIGIN_ALLOCATED,
ACPI_TABLE_ORIGIN_UNKNOWN, ACPI_TABLE_ORIGIN_OVERRIDE) in the
struct acpi_table_desc.Address field and refills the struct acpi_table_desc.Pointer
using these addresses in acpi_tb_verify_table(). Note that if a table with
ACPI_TABLE_ORIGIN_ALLOCATED set is actually freed, the .Address field
should be invalidated and thus must be replaced with NULL to avoid wrong
future validations occuring in acpi_tb_verify_table().

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpica/exconfig.c

@@ -435,7 +435,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 			return_ACPI_STATUS(status);
 		}
 
-		table_desc.address = obj_desc->region.address;
+		table_desc.address = ACPI_PTR_TO_PHYSADDR(table_desc.pointer);
 		break;
 
 	case ACPI_TYPE_BUFFER:	/* Buffer or resolved region_field */
@@ -476,7 +476,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		}
 
 		ACPI_MEMCPY(table_desc.pointer, table, length);
-		table_desc.address = ACPI_TO_INTEGER(table_desc.pointer);
+		table_desc.address = ACPI_PTR_TO_PHYSADDR(table_desc.pointer);
 		break;
 
 	default: