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Diffstat (limited to 'src/drivers/intel/fsp1_1/hob.c')
-rw-r--r--src/drivers/intel/fsp1_1/hob.c560
1 files changed, 393 insertions, 167 deletions
diff --git a/src/drivers/intel/fsp1_1/hob.c b/src/drivers/intel/fsp1_1/hob.c
index ecc6bad845..905d3ec1ab 100644
--- a/src/drivers/intel/fsp1_1/hob.c
+++ b/src/drivers/intel/fsp1_1/hob.c
@@ -2,6 +2,7 @@
* This file is part of the coreboot project.
*
* Copyright (C) 2013-2014 Sage Electronic Engineering, LLC.
+ * Copyright (C) 2015 Intel Corp.
*
* 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
@@ -17,150 +18,329 @@
* Foundation, Inc.
*/
-#include <types.h>
-#include <string.h>
+#include <arch/early_variables.h>
+#include <arch/hlt.h>
+#include <bootstate.h>
+#include <cbmem.h>
#include <console/console.h>
-#include <lib.h> // hexdump
#include "fsp_util.h"
+#include <ip_checksum.h>
+#include <lib.h> // hexdump
+#include <string.h>
+
+/*
+ * Reads a 64-bit value from memory that may be unaligned.
+ *
+ * This function returns the 64-bit value pointed to by buffer. The
+ * function guarantees that the read operation does not produce an
+ * alignment fault.
+ *
+ * If buffer is NULL, then ASSERT().
+ *
+ * buffer: Pointer to a 64-bit value that may be unaligned.
+ *
+ * Returns the 64-bit value read from buffer.
+ *
+ */
+static
+uint64_t
+read_unaligned_64(
+ const uint64_t *buffer
+ )
+{
+ ASSERT(buffer != NULL);
+ return *buffer;
+}
-/** Displays a GUID's address and value
+/*
+ * Compares two GUIDs.
+ *
+ * This function compares guid1 to guid2. If the GUIDs are identical then
+ * TRUE is returned. If there are any bit differences in the two GUIDs,
+ * then FALSE is returned.
+ *
+ * If guid1 is NULL, then ASSERT().
+ * If guid2 is NULL, then ASSERT().
+ *
+ * guid1: A pointer to a 128 bit GUID.
+ * guid2: A pointer to a 128 bit GUID.
*
- * @param guid pointer to the GUID to display
+ * Returns non-zero if guid1 and guid2 are identical, otherwise returns 0.
+ *
+ */
+static
+long
+compare_guid(
+ const EFI_GUID * guid1,
+ const EFI_GUID * guid2
+ )
+{
+ uint64_t low_part_of_guid1;
+ uint64_t low_part_of_guid2;
+ uint64_t high_part_of_guid1;
+ uint64_t high_part_of_guid2;
+
+ low_part_of_guid1 = read_unaligned_64((const uint64_t *) guid1);
+ low_part_of_guid2 = read_unaligned_64((const uint64_t *) guid2);
+ high_part_of_guid1 = read_unaligned_64((const uint64_t *) guid1 + 1);
+ high_part_of_guid2 = read_unaligned_64((const uint64_t *) guid2 + 1);
+
+ return ((low_part_of_guid1 == low_part_of_guid2)
+ && (high_part_of_guid1 == high_part_of_guid2));
+}
+
+/* Returns the pointer to the HOB list. */
+VOID *
+EFIAPI
+get_hob_list(
+ VOID
+ )
+{
+ void *hob_list;
+
+ hob_list = fsp_get_hob_list();
+ if (hob_list == NULL)
+ die("Call fsp_set_runtime() before this call!\n");
+ return hob_list;
+}
+
+/* Returns the next instance of a HOB type from the starting HOB. */
+VOID *
+EFIAPI
+get_next_hob(
+ UINT16 type,
+ CONST VOID *hob_start
+ )
+{
+ EFI_PEI_HOB_POINTERS hob;
+
+ ASSERT(hob_start != NULL);
+
+ hob.Raw = (UINT8 *)hob_start;
+
+ /* Parse the HOB list until end of list or matching type is found. */
+ while (!END_OF_HOB_LIST(hob.Raw)) {
+ if (hob.Header->HobType == type)
+ return hob.Raw;
+ if (GET_HOB_LENGTH(hob.Raw) < sizeof(*hob.Header))
+ break;
+ hob.Raw = GET_NEXT_HOB(hob.Raw);
+ }
+ return NULL;
+}
+
+/* Returns the first instance of a HOB type among the whole HOB list. */
+VOID *
+EFIAPI
+get_first_hob(
+ UINT16 type
+ )
+{
+ VOID *hob_list;
+
+ hob_list = get_hob_list();
+ return get_next_hob(type, hob_list);
+}
+
+/* Returns the next instance of the matched GUID HOB from the starting HOB. */
+VOID *
+EFIAPI
+get_next_guid_hob(
+ CONST EFI_GUID * guid,
+ CONST VOID *hob_start
+ )
+{
+ EFI_PEI_HOB_POINTERS hob;
+
+ hob.Raw = (UINT8 *)hob_start;
+ while ((hob.Raw = get_next_hob(EFI_HOB_TYPE_GUID_EXTENSION, hob.Raw))
+ != NULL) {
+ if (compare_guid(guid, &hob.Guid->Name))
+ break;
+ hob.Raw = GET_NEXT_HOB(hob.Raw);
+ }
+ return hob.Raw;
+}
+
+/*
+ * Returns the first instance of the matched GUID HOB among the whole HOB list.
+ */
+VOID *
+EFIAPI
+get_first_guid_hob(
+ CONST EFI_GUID * guid
+ )
+{
+ return get_next_guid_hob(guid, get_hob_list());
+}
+
+/*
+ * Returns the next instance of the matching resource HOB from the starting HOB.
*/
-void printguid(EFI_GUID *guid)
+void *get_next_resource_hob(const EFI_GUID *guid, const void *hob_start)
{
- 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] );
+ EFI_PEI_HOB_POINTERS hob;
+
+ hob.Raw = (UINT8 *)hob_start;
+ while ((hob.Raw = get_next_hob(EFI_HOB_TYPE_RESOURCE_DESCRIPTOR,
+ hob.Raw)) != NULL) {
+ if (compare_guid(guid, &hob.ResourceDescriptor->Owner))
+ break;
+ hob.Raw = GET_NEXT_HOB(hob.Raw);
+ }
+ return hob.Raw;
+}
+
+/*
+ * Returns the first instance of the matching resource HOB among the whole HOB
+ * list.
+ */
+void *get_first_resource_hob(const EFI_GUID *guid)
+{
+ return get_next_resource_hob(guid, get_hob_list());
}
-void print_hob_mem_attributes(void *Hobptr)
+static void print_hob_mem_attributes(void *hob_ptr)
{
- 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";
+ EFI_HOB_MEMORY_ALLOCATION *hob_memory_ptr =
+ (EFI_HOB_MEMORY_ALLOCATION *)hob_ptr;
+ EFI_MEMORY_TYPE hob_mem_type =
+ hob_memory_ptr->AllocDescriptor.MemoryType;
+ u64 hob_mem_addr = hob_memory_ptr->AllocDescriptor.MemoryBaseAddress;
+ u64 hob_mem_length = hob_memory_ptr->AllocDescriptor.MemoryLength;
+ const char *hob_mem_type_names[15];
+
+ hob_mem_type_names[0] = "EfiReservedMemoryType";
+ hob_mem_type_names[1] = "EfiLoaderCode";
+ hob_mem_type_names[2] = "EfiLoaderData";
+ hob_mem_type_names[3] = "EfiBootServicesCode";
+ hob_mem_type_names[4] = "EfiBootServicesData";
+ hob_mem_type_names[5] = "EfiRuntimeServicesCode";
+ hob_mem_type_names[6] = "EfiRuntimeServicesData";
+ hob_mem_type_names[7] = "EfiConventionalMemory";
+ hob_mem_type_names[8] = "EfiUnusableMemory";
+ hob_mem_type_names[9] = "EfiACPIReclaimMemory";
+ hob_mem_type_names[10] = "EfiACPIMemoryNVS";
+ hob_mem_type_names[11] = "EfiMemoryMappedIO";
+ hob_mem_type_names[12] = "EfiMemoryMappedIOPortSpace";
+ hob_mem_type_names[13] = "EfiPalCode";
+ hob_mem_type_names[14] = "EfiMaxMemoryType";
printk(BIOS_SPEW, " Memory type %s (0x%x)\n",
- Hobmemtypenames[(u32)Hobmemtype], (u32) Hobmemtype);
+ hob_mem_type_names[(u32)hob_mem_type],
+ (u32)hob_mem_type);
printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n",
- (unsigned long)Hobmemaddr, (unsigned long)Hobmemlength);
+ (unsigned long)hob_mem_addr,
+ (unsigned long)hob_mem_length);
}
-void print_hob_resource_attributes(void *Hobptr)
+static void print_hob_resource_attributes(void *hob_ptr)
{
- 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) {
+ EFI_HOB_RESOURCE_DESCRIPTOR *hob_resource_ptr =
+ (EFI_HOB_RESOURCE_DESCRIPTOR *)hob_ptr;
+ u32 hob_res_type = hob_resource_ptr->ResourceType;
+ u32 hob_res_attr = hob_resource_ptr->ResourceAttribute;
+ u64 hob_res_addr = hob_resource_ptr->PhysicalStart;
+ u64 hob_res_length = hob_resource_ptr->ResourceLength;
+ const char *hob_res_type_str = NULL;
+
+ /* HOB Resource Types */
+ switch (hob_res_type) {
case EFI_RESOURCE_SYSTEM_MEMORY:
- Hobrestypestr = "EFI_RESOURCE_SYSTEM_MEMORY"; break;
+ hob_res_type_str = "EFI_RESOURCE_SYSTEM_MEMORY";
+ break;
case EFI_RESOURCE_MEMORY_MAPPED_IO:
- Hobrestypestr = "EFI_RESOURCE_MEMORY_MAPPED_IO"; break;
+ hob_res_type_str = "EFI_RESOURCE_MEMORY_MAPPED_IO";
+ break;
case EFI_RESOURCE_IO:
- Hobrestypestr = "EFI_RESOURCE_IO"; break;
+ hob_res_type_str = "EFI_RESOURCE_IO";
+ break;
case EFI_RESOURCE_FIRMWARE_DEVICE:
- Hobrestypestr = "EFI_RESOURCE_FIRMWARE_DEVICE"; break;
+ hob_res_type_str = "EFI_RESOURCE_FIRMWARE_DEVICE";
+ break;
case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT:
- Hobrestypestr = "EFI_RESOURCE_MEMORY_MAPPED_IO_PORT"; break;
+ hob_res_type_str = "EFI_RESOURCE_MEMORY_MAPPED_IO_PORT";
+ break;
case EFI_RESOURCE_MEMORY_RESERVED:
- Hobrestypestr = "EFI_RESOURCE_MEMORY_RESERVED"; break;
+ hob_res_type_str = "EFI_RESOURCE_MEMORY_RESERVED";
+ break;
case EFI_RESOURCE_IO_RESERVED:
- Hobrestypestr = "EFI_RESOURCE_IO_RESERVED"; break;
+ hob_res_type_str = "EFI_RESOURCE_IO_RESERVED";
+ break;
case EFI_RESOURCE_MAX_MEMORY_TYPE:
- Hobrestypestr = "EFI_RESOURCE_MAX_MEMORY_TYPE"; break;
+ hob_res_type_str = "EFI_RESOURCE_MAX_MEMORY_TYPE";
+ break;
default:
- Hobrestypestr = "EFI_RESOURCE_UNKNOWN"; break;
+ hob_res_type_str = "EFI_RESOURCE_UNKNOWN";
+ break;
}
printk(BIOS_SPEW, " Resource %s (0x%0x) has attributes 0x%0x\n",
- Hobrestypestr, Hobrestype, Hobresattr);
+ hob_res_type_str, hob_res_type, hob_res_attr);
printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n",
- (unsigned long)Hobresaddr, (unsigned long)Hobreslength);
+ (unsigned long)hob_res_addr,
+ (unsigned long)hob_res_length);
}
-const char * get_hob_type_string(void *Hobptr)
+static const char *get_hob_type_string(void *hob_ptr)
{
- EFI_HOB_GENERIC_HEADER *HobHeaderPtr = (EFI_HOB_GENERIC_HEADER *)Hobptr;
- u16 Hobtype = HobHeaderPtr->HobType;
- const char *Hobtypestring = NULL;
+ EFI_PEI_HOB_POINTERS hob;
+ const char *hob_type_string = NULL;
+ const EFI_GUID fsp_reserved_guid =
+ FSP_RESERVED_MEMORY_RESOURCE_HOB_GUID;
+ const EFI_GUID mrc_guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID;
+ const EFI_GUID bootldr_tmp_mem_guid =
+ FSP_BOOTLOADER_TEMP_MEMORY_HOB_GUID;
+ const EFI_GUID bootldr_tolum_guid = FSP_BOOTLOADER_TOLUM_HOB_GUID;
+ const EFI_GUID graphics_info_guid = EFI_PEI_GRAPHICS_INFO_HOB_GUID;
- switch (Hobtype) {
+ hob.Header = (EFI_HOB_GENERIC_HEADER *)hob_ptr;
+ switch (hob.Header->HobType) {
case EFI_HOB_TYPE_HANDOFF:
- Hobtypestring = "EFI_HOB_TYPE_HANDOFF"; break;
+ hob_type_string = "EFI_HOB_TYPE_HANDOFF";
+ break;
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
- Hobtypestring = "EFI_HOB_TYPE_MEMORY_ALLOCATION"; break;
+ hob_type_string = "EFI_HOB_TYPE_MEMORY_ALLOCATION";
+ break;
case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR:
- Hobtypestring = "EFI_HOB_TYPE_RESOURCE_DESCRIPTOR"; break;
+ hob_type_string = "EFI_HOB_TYPE_RESOURCE_DESCRIPTOR";
+ break;
case EFI_HOB_TYPE_GUID_EXTENSION:
- Hobtypestring = "EFI_HOB_TYPE_GUID_EXTENSION"; break;
+ hob_type_string = "EFI_HOB_TYPE_GUID_EXTENSION";
+ if (compare_guid(&bootldr_tmp_mem_guid, &hob.Guid->Name))
+ hob_type_string = "FSP_BOOTLOADER_TEMP_MEMORY_HOB";
+ else if (compare_guid(&fsp_reserved_guid, &hob.Guid->Name))
+ hob_type_string = "FSP_RESERVED_MEMORY_RESOURCE_HOB";
+ else if (compare_guid(&mrc_guid, &hob.Guid->Name))
+ hob_type_string = "FSP_NON_VOLATILE_STORAGE_HOB";
+ else if (compare_guid(&bootldr_tolum_guid, &hob.Guid->Name))
+ hob_type_string = "FSP_BOOTLOADER_TOLUM_HOB_GUID";
+ else if (compare_guid(&graphics_info_guid, &hob.Guid->Name))
+ hob_type_string = "EFI_PEI_GRAPHICS_INFO_HOB_GUID";
+ break;
case EFI_HOB_TYPE_MEMORY_POOL:
- Hobtypestring = "EFI_HOB_TYPE_MEMORY_POOL"; break;
+ hob_type_string = "EFI_HOB_TYPE_MEMORY_POOL";
+ break;
case EFI_HOB_TYPE_UNUSED:
- Hobtypestring = "EFI_HOB_TYPE_UNUSED"; break;
+ hob_type_string = "EFI_HOB_TYPE_UNUSED";
+ break;
case EFI_HOB_TYPE_END_OF_HOB_LIST:
- Hobtypestring = "EFI_HOB_TYPE_END_OF_HOB_LIST"; break;
+ hob_type_string = "EFI_HOB_TYPE_END_OF_HOB_LIST";
+ break;
default:
- Hobtypestring = "EFI_HOB_TYPE_UNRECOGNIZED"; break;
+ hob_type_string = "EFI_HOB_TYPE_UNRECOGNIZED";
+ break;
}
- return Hobtypestring;
+ return hob_type_string;
}
-/** 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
+/*
+ * 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_HANDOFF (0x0001)
* EFI_HOB_TYPE_MEMORY_ALLOCATION (0x0002)
* EFI_HOB_TYPE_RESOURCE_DESCRIPTOR (0x0003)
* EFI_HOB_TYPE_GUID_EXTENSION (0x0004)
@@ -168,102 +348,148 @@ void print_guid_type_attributes(void *Hobptr)
* EFI_HOB_TYPE_UNUSED (0xFFFE)
* EFI_HOB_TYPE_END_OF_HOB_LIST (0xFFFF)
*/
-void print_hob_type_structure(u16 Hobtype, void *Hoblistptr)
+void print_hob_type_structure(u16 hob_type, void *hob_list_ptr)
{
- u32 *Currenthob;
- u32 *Nexthob = 0;
- u8 Lasthob = 0;
- u32 Currenttype;
- const char *Currenttypestr;
+ u32 *current_hob;
+ u32 *next_hob = 0;
+ u8 last_hob = 0;
+ u32 current_type;
+ const char *current_type_str;
- Currenthob = Hoblistptr;
+ current_hob = hob_list_ptr;
- /* Print out HOBs of our desired type until
+ /*
+ * 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);
+ printk(BIOS_DEBUG, "0x%p: hob_list_ptr\n", hob_list_ptr);
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);
+ EFI_HOB_GENERIC_HEADER *current_header_ptr =
+ (EFI_HOB_GENERIC_HEADER *)current_hob;
+
+ /* Get the type of this HOB */
+ current_type = current_header_ptr->HobType;
+ current_type_str = get_hob_type_string(current_hob);
- if (Currenttype == Hobtype || Hobtype == 0x0000) {
+ if (current_type == hob_type || hob_type == 0x0000) {
printk(BIOS_DEBUG, "HOB 0x%0x is an %s (type 0x%0x)\n",
- (u32) Currenthob, Currenttypestr, Currenttype);
- switch (Currenttype) {
+ (u32)current_hob, current_type_str,
+ current_type);
+ switch (current_type) {
case EFI_HOB_TYPE_MEMORY_ALLOCATION:
- print_hob_mem_attributes(Currenthob); break;
+ print_hob_mem_attributes(current_hob);
+ 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;
+ print_hob_resource_attributes(current_hob);
+ 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
+ /* Check for end of HOB list */
+ last_hob = END_OF_HOB_LIST(current_hob);
+ if (!last_hob) {
+ /* Get next HOB pointer */
+ next_hob = GET_NEXT_HOB(current_hob);
+
+ /* Start on next HOB */
+ current_hob = next_hob;
}
- } while (!Lasthob);
+ } while (!last_hob);
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.
+#if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE)
+/*
+ * Save the FSP memory HOB (mrc data) to the MRC area in CBMEM
*/
-void * find_hob_by_guid(void *current_hob, EFI_GUID *guid)
+int save_mrc_data(void *hob_start)
{
- do {
- switch (((EFI_HOB_GENERIC_HEADER *)current_hob)->HobType) {
+ u32 *mrc_hob;
+ u32 *mrc_hob_data;
+ u32 mrc_hob_size;
+ struct mrc_data_container *mrc_data;
+ int output_len;
+ const EFI_GUID mrc_guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID;
- 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;
- }
+ mrc_hob = get_next_guid_hob(&mrc_guid, hob_start);
+ if (mrc_hob == NULL) {
+ printk(BIOS_DEBUG,
+ "Memory Configure Data Hob is not present\n");
+ return 0;
+ }
- 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));
+ mrc_hob_data = GET_GUID_HOB_DATA(mrc_hob);
+ mrc_hob_size = (u32) GET_HOB_LENGTH(mrc_hob);
- return NULL;
-}
+ printk(BIOS_DEBUG, "Memory Configure Data Hob at %p (size = 0x%x).\n",
+ (void *)mrc_hob_data, mrc_hob_size);
-/** 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;
+ output_len = ALIGN(mrc_hob_size, 16);
+
+ /* Save the MRC S3/fast boot/ADR restore data to cbmem */
+ mrc_data = cbmem_add(CBMEM_ID_MRCDATA,
+ output_len + sizeof(struct mrc_data_container));
- if ((*(guid_1) != *(guid_2)) || (*(guid_1 + 1) != *(guid_2 + 1)))
+ /* Just return if there was a problem with getting CBMEM */
+ if (mrc_data == NULL) {
+ printk(BIOS_WARNING,
+ "CBMEM was not available to save the fast boot cache data.\n");
return 0;
+ }
+
+ printk(BIOS_DEBUG,
+ "Copy FSP MRC DATA to HOB (source addr %p, dest addr %p, %u bytes)\n",
+ (void *)mrc_hob_data, mrc_data, output_len);
+
+ mrc_data->mrc_signature = MRC_DATA_SIGNATURE;
+ mrc_data->mrc_data_size = output_len;
+ mrc_data->reserved = 0;
+ memcpy(mrc_data->mrc_data, (const void *)mrc_hob_data, mrc_hob_size);
+ /* Zero the unused space in aligned buffer. */
+ if (output_len > mrc_hob_size)
+ memset((mrc_data->mrc_data + mrc_hob_size), 0,
+ output_len - mrc_hob_size);
+
+ mrc_data->mrc_checksum = compute_ip_checksum(mrc_data->mrc_data,
+ mrc_data->mrc_data_size);
+
+#if IS_ENABLED(CONFIG_DISPLAY_FAST_BOOT_DATA)
+ printk(BIOS_SPEW, "Fast boot data (includes align and checksum):\n");
+ hexdump32(BIOS_SPEW, (void *)mrc_data->mrc_data, output_len);
+#endif
return 1;
}
+
+void __attribute__ ((weak)) update_mrc_cache(void *unused)
+{
+ printk(BIOS_ERR, "Add routine %s to save the MRC data.\n", __func__);
+}
+#endif /* CONFIG_ENABLE_MRC_CACHE */
+
+#if ENV_RAMSTAGE
+
+static void find_fsp_hob_update_mrc(void *unused)
+{
+ void *hob_list_ptr;
+
+ /* 0x0000: Print all types */
+ hob_list_ptr = get_hob_list();
+#if IS_ENABLED(CONFIG_DISPLAY_HOBS)
+ print_hob_type_structure(0x000, hob_list_ptr);
+#endif
+
+ #if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE)
+ if (save_mrc_data(hob_list_ptr))
+ update_mrc_cache(NULL);
+ else
+ printk(BIOS_DEBUG, "Not updating MRC data in flash.\n");
+ #endif
+}
+
+/* Update the MRC/fast boot cache as part of the late table writing stage */
+BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY,
+ find_fsp_hob_update_mrc, NULL);
+
+#endif /* ENV_RAMSTAGE */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 09:50:29 +0000