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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013-2014 Sage Electronic Engineering, LLC.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <types.h>
#include <string.h>
#include <console/console.h>
#include <lib.h> // hexdump
#include "fsp_util.h"
/** Displays a GUID's address and value
*
* @param guid pointer to the GUID to display
*/
void printguid(EFI_GUID *guid)
{
printk(BIOS_SPEW,"Address: %p Guid: %08lx-%04x-%04x-",
guid, (unsigned long)guid->Data1,
guid->Data2, guid->Data3);
printk(BIOS_SPEW,"%02x%02x%02x%02x%02x%02x%02x%02x\n",
guid->Data4[0], guid->Data4[1],
guid->Data4[2], guid->Data4[3],
guid->Data4[4], guid->Data4[5],
guid->Data4[6], guid->Data4[7] );
}
void print_hob_mem_attributes(void *Hobptr)
{
EFI_HOB_MEMORY_ALLOCATION *HobMemoryPtr = (EFI_HOB_MEMORY_ALLOCATION *)Hobptr;
EFI_MEMORY_TYPE Hobmemtype = HobMemoryPtr->AllocDescriptor.MemoryType;
u64 Hobmemaddr = HobMemoryPtr->AllocDescriptor.MemoryBaseAddress;
u64 Hobmemlength = HobMemoryPtr->AllocDescriptor.MemoryLength;
const char * Hobmemtypenames[15];
Hobmemtypenames[0] = "EfiReservedMemoryType";
Hobmemtypenames[1] = "EfiLoaderCode";
Hobmemtypenames[2] = "EfiLoaderData";
Hobmemtypenames[3] = "EfiBootServicesCode";
Hobmemtypenames[4] = "EfiBootServicesData";
Hobmemtypenames[5] = "EfiRuntimeServicesCode";
Hobmemtypenames[6] = "EfiRuntimeServicesData";
Hobmemtypenames[7] = "EfiConventionalMemory";
Hobmemtypenames[8] = "EfiUnusableMemory";
Hobmemtypenames[9] = "EfiACPIReclaimMemory";
Hobmemtypenames[10] = "EfiACPIMemoryNVS";
Hobmemtypenames[11] = "EfiMemoryMappedIO";
Hobmemtypenames[12] = "EfiMemoryMappedIOPortSpace";
Hobmemtypenames[13] = "EfiPalCode";
Hobmemtypenames[14] = "EfiMaxMemoryType";
printk(BIOS_SPEW, " Memory type %s (0x%x)\n",
Hobmemtypenames[(u32)Hobmemtype], (u32) Hobmemtype);
printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n",
(unsigned long)Hobmemaddr, (unsigned long)Hobmemlength);
}
void print_hob_resource_attributes(void *Hobptr)
{
EFI_HOB_RESOURCE_DESCRIPTOR *HobResourcePtr =
(EFI_HOB_RESOURCE_DESCRIPTOR *)Hobptr;
u32 Hobrestype = HobResourcePtr->ResourceType;
u32 Hobresattr = HobResourcePtr->ResourceAttribute;
u64 Hobresaddr = HobResourcePtr->PhysicalStart;
u64 Hobreslength = HobResourcePtr->ResourceLength;
const char *Hobrestypestr = NULL;
// HOB Resource Types
switch (Hobrestype) {
case EFI_RESOURCE_SYSTEM_MEMORY:
Hobrestypestr = "EFI_RESOURCE_SYSTEM_MEMORY"; break;
case EFI_RESOURCE_MEMORY_MAPPED_IO:
Hobrestypestr = "EFI_RESOURCE_MEMORY_MAPPED_IO"; break;
case EFI_RESOURCE_IO:
Hobrestypestr = "EFI_RESOURCE_IO"; break;
case EFI_RESOURCE_FIRMWARE_DEVICE:
Hobrestypestr = "EFI_RESOURCE_FIRMWARE_DEVICE"; break;
case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:
Hobrestypestr = "EFI_RESOURCE_MEMORY_MAPPED_IO_PORT"; break;
case EFI_RESOURCE_MEMORY_RESERVED:
Hobrestypestr = "EFI_RESOURCE_MEMORY_RESERVED"; break;
case EFI_RESOURCE_IO_RESERVED:
Hobrestypestr = "EFI_RESOURCE_IO_RESERVED"; break;
case EFI_RESOURCE_MAX_MEMORY_TYPE:
Hobrestypestr = "EFI_RESOURCE_MAX_MEMORY_TYPE"; break;
default:
Hobrestypestr = "EFI_RESOURCE_UNKNOWN"; break;
}
printk(BIOS_SPEW, " Resource %s (0x%0x) has attributes 0x%0x\n",
Hobrestypestr, Hobrestype, Hobresattr);
printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n",
(unsigned long)Hobresaddr, (unsigned long)Hobreslength);
}
const char * get_hob_type_string(void *Hobptr)
{
EFI_HOB_GENERIC_HEADER *HobHeaderPtr = (EFI_HOB_GENERIC_HEADER *)Hobptr;
u16 Hobtype = HobHeaderPtr->HobType;
const char *Hobtypestring = NULL;
switch (Hobtype) {
case EFI_HOB_TYPE_HANDOFF:
Hobtypestring = "EFI_HOB_TYPE_HANDOFF"; break;
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
Hobtypestring = "EFI_HOB_TYPE_MEMORY_ALLOCATION"; break;
case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR:
Hobtypestring = "EFI_HOB_TYPE_RESOURCE_DESCRIPTOR"; break;
case EFI_HOB_TYPE_GUID_EXTENSION:
Hobtypestring = "EFI_HOB_TYPE_GUID_EXTENSION"; break;
case EFI_HOB_TYPE_MEMORY_POOL:
Hobtypestring = "EFI_HOB_TYPE_MEMORY_POOL"; break;
case EFI_HOB_TYPE_UNUSED:
Hobtypestring = "EFI_HOB_TYPE_UNUSED"; break;
case EFI_HOB_TYPE_END_OF_HOB_LIST:
Hobtypestring = "EFI_HOB_TYPE_END_OF_HOB_LIST"; break;
default:
Hobtypestring = "EFI_HOB_TYPE_UNRECOGNIZED"; break;
}
return Hobtypestring;
}
/** Displays the length, location, and GUID value of a GUID extension
*
* The EFI_HOB_GUID_TYPE is very basic - it just contains the standard
* HOB header containing the HOB type and length, and a GUID for
* identification. The rest of the data is undefined and must be known
* based on the GUID.
*
* This displays the entire HOB length, and the location of the start
* of the HOB, *NOT* the length of or the start of the data inside the HOB.
*
* @param Hobptr
*/
void print_guid_type_attributes(void *Hobptr)
{
printk(BIOS_SPEW, " at location %p with length0x%0lx\n ",
Hobptr, (unsigned long)(((EFI_PEI_HOB_POINTERS *) \
Hobptr)->Guid->Header.HobLength));
printguid(&(((EFI_HOB_GUID_TYPE *)Hobptr)->Name));
}
/* Print out a structure of all the HOBs
* that match a certain type:
* Print all types (0x0000)
* EFI_HOB_TYPE_HANDOFF (0x0001)
* EFI_HOB_TYPE_MEMORY_ALLOCATION (0x0002)
* EFI_HOB_TYPE_RESOURCE_DESCRIPTOR (0x0003)
* EFI_HOB_TYPE_GUID_EXTENSION (0x0004)
* EFI_HOB_TYPE_MEMORY_POOL (0x0007)
* EFI_HOB_TYPE_UNUSED (0xFFFE)
* EFI_HOB_TYPE_END_OF_HOB_LIST (0xFFFF)
*/
void print_hob_type_structure(u16 Hobtype, void *Hoblistptr)
{
u32 *Currenthob;
u32 *Nexthob = 0;
u8 Lasthob = 0;
u32 Currenttype;
const char *Currenttypestr;
Currenthob = Hoblistptr;
/* Print out HOBs of our desired type until
* the end of the HOB list
*/
printk(BIOS_DEBUG, "\n=== FSP HOB Data Structure ===\n");
printk(BIOS_DEBUG, "FSP Hoblistptr: 0x%0x\n",
(u32) Hoblistptr);
do {
EFI_HOB_GENERIC_HEADER *CurrentHeaderPtr =
(EFI_HOB_GENERIC_HEADER *)Currenthob;
Currenttype = CurrentHeaderPtr->HobType; /* Get the type of this HOB */
Currenttypestr = get_hob_type_string(Currenthob);
if (Currenttype == Hobtype || Hobtype == 0x0000) {
printk(BIOS_DEBUG, "HOB 0x%0x is an %s (type 0x%0x)\n",
(u32) Currenthob, Currenttypestr, Currenttype);
switch (Currenttype) {
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
print_hob_mem_attributes(Currenthob); break;
case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR:
print_hob_resource_attributes(Currenthob); break;
case EFI_HOB_TYPE_GUID_EXTENSION:
print_guid_type_attributes(Currenthob); break;
}
}
Lasthob = END_OF_HOB_LIST(Currenthob); /* Check for end of HOB list */
if (!Lasthob) {
Nexthob = GET_NEXT_HOB(Currenthob); /* Get next HOB pointer */
Currenthob = Nexthob; // Start on next HOB
}
} while (!Lasthob);
printk(BIOS_DEBUG, "=== End of FSP HOB Data Structure ===\n\n");
}
/** Finds a HOB entry based on type and guid
*
* @param current_hob pointer to the start of the HOB list
* @param guid the GUID of the HOB entry to find
* @return pointer to the start of the requested HOB or NULL if not found.
*/
void * find_hob_by_guid(void *current_hob, EFI_GUID *guid)
{
do {
switch (((EFI_HOB_GENERIC_HEADER *)current_hob)->HobType) {
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
if (guids_are_equal(guid, &(((EFI_HOB_MEMORY_ALLOCATION *) \
current_hob)->AllocDescriptor.Name)))
return current_hob;
break;
case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR:
if (guids_are_equal(guid,
&(((EFI_HOB_RESOURCE_DESCRIPTOR *) \
current_hob)->Owner)))
return current_hob;
break;
case EFI_HOB_TYPE_GUID_EXTENSION:
if (guids_are_equal(guid, &(((EFI_HOB_GUID_TYPE *) \
current_hob)->Name)))
return current_hob;
break;
}
if (!END_OF_HOB_LIST(current_hob))
current_hob = GET_NEXT_HOB(current_hob); /* Get next HOB pointer */
} while (!END_OF_HOB_LIST(current_hob));
return NULL;
}
/** Compares a pair of GUIDs to see if they are equal
*
* GUIDs are 128 bits long, so compare them as pairs of quadwords.
*
* @param guid1 pointer to the first of the GUIDs to compare
* @param guid2 pointer to the second of the GUIDs to compare
* @return 1 if the GUIDs were equal, 0 if GUIDs were not equal
*/
uint8_t guids_are_equal(EFI_GUID *guid1, EFI_GUID *guid2)
{
uint64_t* guid_1 = (void *) guid1;
uint64_t* guid_2 = (void *) guid2;
if ((*(guid_1) != *(guid_2)) || (*(guid_1 + 1) != *(guid_2 + 1)))
return 0;
return 1;
}
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