Martin Roth (martin.roth@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5635
-gerrit
commit 9896e534aca8217eaace581e47a6b2401e50926c Author: Martin Roth gaumless@gmail.com Date: Fri Apr 25 14:12:13 2014 -0600
Intel FSP: add a shared set of functions for the FSP
- Move the non chipset-specific fsp pieces out of the chipset into a shared area. This is used by northbridge / southbrige / SOC code. It pulls in pieces from Kconfig, Makefile and FSP specific code. - Enabled in the CPU code with a Kconfig "select PLATFORM_USES_FSP"
Change-Id: I7ffa934c1df09b71d48a876a56e3b888685870b8 Signed-off-by: Martin Roth gaumless@gmail.com Signed-off-by: Martin Roth martin.roth@se-eng.com --- src/Kconfig | 1 + src/cpu/x86/Kconfig | 7 + src/lib/Makefile.inc | 1 + src/lib/fsp/Kconfig | 144 ++++++++++++++ src/lib/fsp/cache_as_ram.inc | 169 +++++++++++++++++ src/lib/fsp/fastboot_cache.c | 253 +++++++++++++++++++++++++ src/lib/fsp/fsp_util.c | 433 +++++++++++++++++++++++++++++++++++++++++++ src/lib/fsp/fsp_util.h | 95 ++++++++++ 8 files changed, 1103 insertions(+)
diff --git a/src/Kconfig b/src/Kconfig index cc80b43..a42cc26 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -275,6 +275,7 @@ comment "Embedded Controllers" source src/ec/Kconfig comment "SoC" source src/soc/Kconfig +source src/lib/fsp/Kconfig
endmenu
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index b5bb7e6..5c37861 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -109,6 +109,13 @@ config X86_AMD_FIXED_MTRRS This option informs the MTRR code to use the RdMem and WrMem fields in the fixed MTRR MSRs.
+config PLATFORM_USES_FSP + bool + default n + help + Selected for Intel processors/platform combinations that use the + Intel Firmware Support Package (FSP) for initialization. + config PARALLEL_MP def_bool n help diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 8a82058..c181909 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -17,6 +17,7 @@ # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # subdirs-y += loaders +subdirs-$(CONFIG_PLATFORM_USES_FSP) += fsp
bootblock-y += cbfs.c ifneq ($(CONFIG_HAVE_ARCH_MEMSET),y) diff --git a/src/lib/fsp/Kconfig b/src/lib/fsp/Kconfig new file mode 100644 index 0000000..82021a9 --- /dev/null +++ b/src/lib/fsp/Kconfig @@ -0,0 +1,144 @@ +## +## This file is part of the coreboot project. +## +## Copyright (C) 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. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +if PLATFORM_USES_FSP + +comment "Intel FSP" + +config HAVE_FSP_BIN + bool "Use Intel Firmware Support Package" + help + Select this option to add an Intel FSP binary to + the resulting coreboot image. + + Note: Without this binary, coreboot builds relying on the FSP + will not boot + +config DCACHE_RAM_BASE + hex + default 0xfef00000 + +config DCACHE_RAM_SIZE + hex + default 0x4000 + +if HAVE_FSP_BIN + +config FSP_FILE + string "Intel FSP binary path and filename" + help + The path and filename of the Intel FSP binary for this platform. + +config FSP_LOC + hex "Intel FSP Binary location in CBFS" + default 0xfffc0000 if SOC_INTEL_FSP_BAYTRAIL + default 0xfff80000 + help + The location in CBFS that the FSP is located. This must match the + value that is set in the FSP binary. If the FSP needs to be moved, + rebase the FSP with the Intel's BCT (tool). + +config ENABLE_FAST_BOOT + bool "Enable Fast Boot" + default n + help + Enabling this feature will cause MRC data to be cached in NV storage + which will speed up boot time on future reboots and/or power cycles. + +config ENABLE_MRC_CACHE + bool + default ENABLE_FAST_BOOT + help + Enabling this feature will cause MRC data to be cached in NV storage. + This can either be used for fastboot, or just because the FSP wants + it to be saved. + +config MRC_CACHE_SIZE + hex "Fastboot Data Cache Size" + default 0x10000 + depends on ENABLE_MRC_CACHE + help + This is the amount of space in NV storage that is reserved for the + fastboot data cache storage. + + WARNING: Because this area will be erased and re-written, the size + should be a full sector of the BIOS ROM and nothing else should be + included in CBFS in any sector that the Fastboot cache data is in. + +config OVERRIDE_CACHE_CACHE_LOC + bool + help + Selected by the platform to set a new default location for the + MRC/Fastboot cache. + +config MRC_CACHE_LOC_OVERRIDE + hex + help + Sets the override CBFS location of the MRC/Fastboot cache. + +config MRC_CACHE_LOC + hex "Fastboot Data Cache location in CBFS" + default MRC_CACHE_LOC_OVERRIDE if OVERRIDE_CACHE_CACHE_LOC + default 0xfff50000 + depends on ENABLE_MRC_CACHE + help + The location in CBFS for the MRC data to be cached. + + WARNING: This should be on a sector boundary of the BIOS ROM chip + and nothing else should be included in that sector, or IT WILL BE + ERASED. + +config VIRTUAL_ROM_SIZE + hex "Virtual ROM Size" + default ROM_SIZE + depends on ENABLE_MRC_CACHE + help + This is used to calculate the offset of the MRC data cache in NV + Storage for "Fast Boot". If in doubt, leave this set to the default + which sets the virtual size equal to the ROM size. + + Example: Cougar Canyon 2 has 2 8 MB SPI ROMs. When the SPI ROMs are + loaded with a 4 MB coreboot image, the virtual ROM size is 8 MB. When + the SPI ROMs are loaded with an 8 MB coreboot image, the virtual ROM + size is 16 MB. + +endif #HAVE_FSP_BIN + +config CACHE_ROM_SIZE_OVERRIDE + hex "Cache ROM Size" + default CBFS_SIZE + help + This is the size of the cachable area that is passed into the FSP in + the early initialization. Typically this should be the size of the CBFS + area, but the size must be a power of 2 whereas the CBFS size does not + have this limitation. + +config USE_GENERIC_FSP_CAR_INC + bool + default n + help + The chipset can select this to use a generic cache_as_ram.inc file + that should be good for all fsp based platforms. + +config FSP_USES_UPD + bool + default n + help + If this fsp uses UPD/VPD data regions, select this in the chipset Kconfig +endif #PLATFORM_USES_FSP diff --git a/src/lib/fsp/cache_as_ram.inc b/src/lib/fsp/cache_as_ram.inc new file mode 100644 index 0000000..32c1a61 --- /dev/null +++ b/src/lib/fsp/cache_as_ram.inc @@ -0,0 +1,169 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2000,2007 Ronald G. Minnich rminnich@gmail.com + * Copyright (C) 2007-2008 coresystems GmbH + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cpu/x86/stack.h> +#include <cpu/x86/mtrr.h> +#include <cpu/x86/cache.h> +#include <cpu/x86/post_code.h> +#include <cbmem.h> + +#ifndef CONFIG_FSP_LOC +# error "CONFIG_FSP_LOC must be set." +#endif + +#ifndef CONFIG_POST_IO +# error "CONFIG_POST_IO must be set." +#endif + +#if CONFIG_IO_POST +# ifndef CONFIG_POST_IO_PORT +# error "CONFIG_POST_IO_PORT must be set." +# endif +#endif + +#ifndef CONFIG_CPU_MICROCODE_CBFS_LOC +# error "CONFIG_CPU_MICROCODE_CBFS_LOC must be set." +#endif + +#define LHLT_DELAY 0x50000 /* delay between post codes on FSP failure */ + + cmp $0, %eax + jne bisthalt + +cache_as_ram: + post_code(0x20) + + /* + * Find the FSP binary in cbfs. + * Make a fake stack that has the return value back to this code. + */ + lea fake_fsp_stack, %esp + jmp find_fsp +find_fsp_ret: + /* Save the FSP location */ + mov %eax, %ebp + cmp $CONFIG_FSP_LOC, %eax + jb halt1 + + post_code(0x22) + + /* Calculate entry into FSP */ + mov 0x30(%ebp), %eax /* Load TempRamInitEntry */ + add 0x1c(%ebp), %eax /* add in the offset for the FSP base address */ + + /* + * Pass early init variables on a fake stack (no memory yet) + * as well as the return location + */ + lea CAR_init_stack, %esp + + /* call FSP binary to setup temporary stack */ + jmp *%eax + +CAR_init_done: + addl $4, %esp + cmp $0, %eax + jne halt2 + + /* Save FSP_INFO_HEADER location in ebx */ + mov %ebp, %ebx + + /* + * set up bootloader stack + * ecx: stack base + * edx: stack top + */ + lea -4(%edx), %esp + movl %esp, %ebp + pushl %ebx + +before_romstage: + post_code(0x23) + + /* Call romstage.c main function. */ + call main /* does not return */ + movb $0xB8, %ah + jmp .Lhlt + +bisthalt: + movb $0xB9, %ah + jmp .Lhlt + +halt1: + /* + * Failures for postcode 0xBA - failed in find_fsp() + * + * Values are: + * 0x01 - FV signature, "_FVH" not present + * 0x02 - FFS GUID not present + * 0x03 - FSP INFO Header not found + * 0x04 - ImageBase does not equal CONFIG_FSP_LOC - Is the FSP rebased to + * a different location, or does it need to be? + * 0x05 - FSP INFO Header signature "FSPH" not found + * 0x06 - FSP Image ID is not the expected ID. + */ + movb $0xBA, %ah + jmp .Lhlt + +halt2: + /* + * Failures for postcode 0xBB - failed in the FSP: + * + * 0x00 - FSP_SUCCESS: Temp RAM was initialized successfully. + * 0x02 - FSP_INVALID_PARAMETER: Input parameters are invalid. + * 0x0E - FSP_NOT_FOUND: No valid microcode was found in the microcode region. + * 0x03 - FSP_UNSUPPORTED: The FSP calling conditions were not met. + * 0x07 - FSP_DEVICE_ERROR: Temp RAM initialization failed + * 0x14 - FSP_ALREADY_STARTED: Temp RAM initialization has been invoked + */ + movb $0xBB, %ah + +.Lhlt: + xchg %al, %ah +#if CONFIG_POST_IO + outb %al, $CONFIG_POST_IO_PORT +#else + post_code(POST_DEAD_CODE) +#endif + movl $LHLT_DELAY, %ecx +.Lhlt_Delay: + outb %al, $0xED + loop .Lhlt_Delay + jmp .Lhlt + +/* + * esp is set to this location so that the call into and return from the FSP + * in find_fsp will work. + */ + .align 4 +fake_fsp_stack: + .long find_fsp_ret + +CAR_init_params: + .long CONFIG_CPU_MICROCODE_CBFS_LOC + .long CONFIG_CPU_MICROCODE_CBFS_LEN + .long 0xFFFFFFFF - CACHE_ROM_SIZE + 1 /* Firmware Location */ + .long CACHE_ROM_SIZE /* Total Firmware Length */ + +CAR_init_stack: + .long CAR_init_done + .long CAR_init_params + diff --git a/src/lib/fsp/fastboot_cache.c b/src/lib/fsp/fastboot_cache.c new file mode 100644 index 0000000..c1666a4 --- /dev/null +++ b/src/lib/fsp/fastboot_cache.c @@ -0,0 +1,253 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Google Inc. + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <string.h> +#include <bootstate.h> +#include <console/console.h> +#include <cbfs.h> +#include <ip_checksum.h> +#include <device/device.h> +#include <cbmem.h> +#include <spi-generic.h> +#include <spi_flash.h> +#include <lib.h> // hexdump +#include "fsp_util.h" + +#ifndef CONFIG_VIRTUAL_ROM_SIZE +#error "CONFIG_VIRTUAL_ROM_SIZE must be set." +#endif + +/* convert a pointer to flash area into the offset inside the flash */ +static inline u32 to_flash_offset(void *p) { + return ((u32)p + CONFIG_VIRTUAL_ROM_SIZE); +} + +static struct mrc_data_container *next_mrc_block( + struct mrc_data_container *mrc_cache) +{ + /* MRC data blocks are aligned within the region */ + u32 mrc_size = sizeof(*mrc_cache) + mrc_cache->mrc_data_size; + if (mrc_size & (MRC_DATA_ALIGN - 1UL)) { + mrc_size &= ~(MRC_DATA_ALIGN - 1UL); + mrc_size += MRC_DATA_ALIGN; + } + + u8 *region_ptr = (u8*)mrc_cache; + region_ptr += mrc_size; + return (struct mrc_data_container *)region_ptr; +} + +static int is_mrc_cache(struct mrc_data_container *mrc_cache) +{ + return (!!mrc_cache) && (mrc_cache->mrc_signature == MRC_DATA_SIGNATURE); +} + +static u32 get_mrc_cache_region(struct mrc_data_container **mrc_region_ptr) +{ + size_t region_size; + *mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, + "mrc.cache", 0xac, + ®ion_size); + + return region_size; +} + +/* + * Find the largest index block in the MRC cache. Return NULL if none is + * found. + */ +static struct mrc_data_container *find_current_mrc_cache_local + (struct mrc_data_container *mrc_cache, u32 region_size) +{ + u32 region_end; + u32 entry_id = 0; + struct mrc_data_container *mrc_next = mrc_cache; + + region_end = (u32) mrc_cache + region_size; + + /* Search for the last filled entry in the region */ + while (is_mrc_cache(mrc_next)) { + entry_id++; + mrc_cache = mrc_next; + mrc_next = next_mrc_block(mrc_next); + if ((u32)mrc_next >= region_end) { + /* Stay in the MRC data region */ + break; + } + } + + if (entry_id == 0) { + printk(BIOS_ERR, "%s: No valid fastboot cache found.\n", __func__); + return NULL; + } + + /* Verify checksum */ + if (mrc_cache->mrc_checksum != + compute_ip_checksum(mrc_cache->mrc_data, + mrc_cache->mrc_data_size)) { + printk(BIOS_ERR, "%s: fastboot cache checksum mismatch\n", __func__); + return NULL; + } + + printk(BIOS_DEBUG, "%s: picked entry %u from cache block\n", __func__, + entry_id - 1); + + return mrc_cache; +} + +/* SPI code needs malloc/free. + * Also unknown if writing flash from XIP-flash code is a good idea + */ +#if !defined(__PRE_RAM__) +/* find the first empty block in the MRC cache area. + * If there's none, return NULL. + * + * @mrc_cache_base - base address of the MRC cache area + * @mrc_cache - current entry (for which we need to find next) + * @region_size - total size of the MRC cache area + */ +static struct mrc_data_container *find_next_mrc_cache + (struct mrc_data_container *mrc_cache_base, + struct mrc_data_container *mrc_cache, + u32 region_size) +{ + u32 region_end = (u32) mrc_cache_base + region_size; + u32 mrc_data_size = mrc_cache->mrc_data_size; + + mrc_cache = next_mrc_block(mrc_cache); + if (((u32)mrc_cache + mrc_data_size) >= region_end) { + /* Crossed the boundary */ + mrc_cache = NULL; + printk(BIOS_DEBUG, "%s: no available entries found\n", + __func__); + } else { + printk(BIOS_DEBUG, + "%s: picked next entry from cache block at %p\n", + __func__, mrc_cache); + } + + return mrc_cache; +} + +void update_mrc_cache(void *unused) +{ + printk(BIOS_DEBUG, "Updating fastboot cache data.\n"); + struct mrc_data_container *current = cbmem_find(CBMEM_ID_MRCDATA); + struct mrc_data_container *cache, *cache_base; + u32 cache_size; + + if (!current) { + printk(BIOS_ERR, "No fastboot cache in cbmem. Can't update flash.\n"); + return; + } + if (current->mrc_data_size == -1) { + printk(BIOS_ERR, "Fastboot cache data in cbmem invalid.\n"); + return; + } + + cache_size = get_mrc_cache_region(&cache_base); + if (cache_base == NULL) { + printk(BIOS_ERR, "%s: could not find Fastboot cache area\n", + __func__); + return; + } + + /* + * we need to: + * 0. compare MRC data to last mrc-cache block (exit if same) + */ + cache = find_current_mrc_cache_local(cache_base, cache_size); + + if (cache && (cache->mrc_data_size == current->mrc_data_size) && + (memcmp(cache, current, cache->mrc_data_size) == 0)) { + printk(BIOS_DEBUG, + "MRC data in flash is up to date. No update.\n"); + return; + } + + /* 1. use spi_flash_probe() to find the flash, then... */ + spi_init(); + struct spi_flash *flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); + if (!flash) { + printk(BIOS_DEBUG, "Could not find SPI device\n"); + return; + } + + /* 2. look up the first unused block */ + if (cache) + cache = find_next_mrc_cache(cache_base, cache, cache_size); + + /* + * 3. if no such place exists, erase entire mrc-cache range & use + * block 0. First time around the erase is not needed, but this is a + * small overhead for simpler code. + */ + if (!cache) { + printk(BIOS_DEBUG, + "Need to erase the MRC cache region of %d bytes at %p\n", + cache_size, cache_base); + + flash->erase(flash, to_flash_offset(cache_base), cache_size); + + /* we will start at the beginning again */ + cache = cache_base; + } + /* 4. write mrc data with flash->write() */ + printk(BIOS_DEBUG, "Write MRC cache update to flash at %p\n", + cache); + flash->write(flash, to_flash_offset(cache), + current->mrc_data_size + sizeof(*current), current); +} + +#endif /* !defined(__PRE_RAM__) */ + +void * find_and_set_fastboot_cache(void) +{ + struct mrc_data_container *mrc_cache = NULL; + if (((mrc_cache = find_current_mrc_cache()) == NULL) || + (mrc_cache->mrc_data_size == -1UL)) { + printk(BIOS_DEBUG, "FSP MRC cache not present.\n"); + return NULL; + } + printk(BIOS_DEBUG, "FSP MRC cache present at %x.\n", (u32)mrc_cache); + printk(BIOS_SPEW, "Saved MRC data:\n"); + hexdump32(BIOS_SPEW, (void *)mrc_cache->mrc_data, mrc_cache->mrc_data_size); + return (void *) mrc_cache->mrc_data; +} + +struct mrc_data_container *find_current_mrc_cache(void) +{ + struct mrc_data_container *cache_base; + u32 cache_size; + + cache_size = get_mrc_cache_region(&cache_base); + if (cache_base == NULL) { + printk(BIOS_ERR, "%s: could not find fastboot cache area\n", + __func__); + return NULL; + } + + /* + * we need to: + * 0. compare MRC data to last mrc-cache block (exit if same) + */ + return find_current_mrc_cache_local(cache_base, cache_size); +} diff --git a/src/lib/fsp/fsp_util.c b/src/lib/fsp/fsp_util.c new file mode 100644 index 0000000..b2a21aa --- /dev/null +++ b/src/lib/fsp/fsp_util.c @@ -0,0 +1,433 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <types.h> +#include <string.h> +#include <cpu/x86/stack.h> +#include <console/console.h> +#include <bootstate.h> +#include <cbmem.h> +#include "fsp_util.h" +#include <lib.h> // hexdump +#include <ip_checksum.h> +#include <timestamp.h> + +#ifndef __PRE_RAM__ +/* Globals pointers for FSP structures */ +void *FspHobListPtr = NULL; +FSP_INFO_HEADER *fsp_header_ptr = NULL; + +void FspNotify (u32 Phase) +{ + FSP_NOTFY_PHASE NotifyPhaseProc; + NOTIFY_PHASE_PARAMS NotifyPhaseParams; + EFI_STATUS Status; + + if (fsp_header_ptr == NULL) { + fsp_header_ptr = (void *)find_fsp(); + if ((u32)fsp_header_ptr < 0xff) { + post_code(0x4F); /* output something in case there is no serial */ + die("Can't find the FSP!\n"); + } + } + + /* call FSP PEI to Notify PostPciEnumeration */ + NotifyPhaseProc = (FSP_NOTFY_PHASE)(fsp_header_ptr->ImageBase + fsp_header_ptr->NotifyPhaseEntry); + NotifyPhaseParams.Phase = Phase; + + #if IS_ENABLED(CONFIG_COLLECT_TIMESTAMPS) + timestamp_add_now(Phase == EnumInitPhaseReadyToBoot ? + TS_FSP_BEFORE_FINALIZE : TS_FSP_BEFORE_ENUMERATE); + #endif + + Status = NotifyPhaseProc (&NotifyPhaseParams); + + #if IS_ENABLED(CONFIG_COLLECT_TIMESTAMPS) + timestamp_add_now(Phase == EnumInitPhaseReadyToBoot ? + TS_FSP_AFTER_FINALIZE : TS_FSP_AFTER_ENUMERATE); + #endif + + if (Status != 0) + printk(BIOS_ERR,"FSP API NotifyPhase failed for phase 0x%x with status: 0x%x\n", Phase, Status); +} +#endif /* #ifndef __PRE_RAM__ */ + +#ifdef __PRE_RAM__ + +/* + * Call the FSP to do memory init. The FSP doesn't return to this function. + * The FSP returns to the romstage_main_continue(). + */ +void __attribute__ ((noreturn)) fsp_early_init (FSP_INFO_HEADER *fsp_ptr) +{ + FSP_FSP_INIT FspInitApi; + FSP_INIT_PARAMS FspInitParams; + FSP_INIT_RT_BUFFER FspRtBuffer; +#if IS_ENABLED(CONFIG_FSP_USES_UPD) + UPD_DATA_REGION fsp_upd_data; +#endif + + memset((void*)&FspRtBuffer, 0, sizeof(FSP_INIT_RT_BUFFER)); + FspRtBuffer.Common.StackTop = (u32 *)ROMSTAGE_STACK; + FspInitParams.NvsBufferPtr = NULL; + +#if IS_ENABLED(CONFIG_FSP_USES_UPD) + FspRtBuffer.Common.UpdDataRgnPtr = &fsp_upd_data; +#endif + FspInitParams.RtBufferPtr = (FSP_INIT_RT_BUFFER *)&FspRtBuffer; + FspInitParams.ContinuationFunc = (CONTINUATION_PROC)ChipsetFspReturnPoint; + FspInitApi = (FSP_FSP_INIT)(fsp_ptr->ImageBase + fsp_ptr->FspInitEntry); + + /* Call the chipset code to fill in the chipset specific structures */ + chipset_fsp_early_init(&FspInitParams, fsp_ptr); + + /* Call back to romstage for board specific changes */ + romstage_fsp_rt_buffer_callback(&FspRtBuffer); + + FspInitApi(&FspInitParams); + + /* Should never return. Control will continue from ContinuationFunc */ + die("Uh Oh! FspInitApi returned"); +} +#endif /* __PRE_RAM__ */ + +volatile u8 * __attribute__((optimize("O0"))) find_fsp () +{ + +#ifdef __PRE_RAM__ + volatile register u8 *fsp_ptr asm ("eax"); + + /* Entry point for CAR assembly routine */ + __asm__ __volatile__ ( + ".global find_fsp\n\t" + "find_fsp:\n\t" + ); +#else + volatile u8 *fsp_ptr; +#endif /* __PRE_RAM__ */ + +#ifndef CONFIG_FSP_LOC +#error "CONFIG_FSP_LOC must be set." +#endif + + /* The FSP is stored in CBFS */ + fsp_ptr = (u8 *) CONFIG_FSP_LOC; + + /* Check the FV signature, _FVH */ + if (((EFI_FIRMWARE_VOLUME_HEADER *)fsp_ptr)->Signature == 0x4856465F) { + /* Go to the end of the FV header and align the address. */ + fsp_ptr += ((EFI_FIRMWARE_VOLUME_HEADER *)fsp_ptr)->ExtHeaderOffset; + fsp_ptr += ((EFI_FIRMWARE_VOLUME_EXT_HEADER *)fsp_ptr)->ExtHeaderSize; + fsp_ptr = (u8 *)(((u32)fsp_ptr + 7) & 0xFFFFFFF8); + } else { + fsp_ptr = (u8*)ERROR_NO_FV_SIG; + } + + /* Check the FFS GUID */ + if (((u32)fsp_ptr > 0xff) && + (((u32 *)&(((EFI_FFS_FILE_HEADER *)fsp_ptr)->Name))[0] == 0x912740BE) && + (((u32 *)&(((EFI_FFS_FILE_HEADER *)fsp_ptr)->Name))[1] == 0x47342284) && + (((u32 *)&(((EFI_FFS_FILE_HEADER *)fsp_ptr)->Name))[2] == 0xB08471B9) && + (((u32 *)&(((EFI_FFS_FILE_HEADER *)fsp_ptr)->Name))[3] == 0x0C3F3527)) { + /* Add the FFS Header size to the base to find the Raw section Header */ + fsp_ptr += sizeof(EFI_FFS_FILE_HEADER); + } else { + fsp_ptr = (u8 *)ERROR_NO_FFS_GUID; + } + + if (((u32)fsp_ptr > 0xff) && + ((EFI_RAW_SECTION *)fsp_ptr)->Type == EFI_SECTION_RAW) { + /* Add the Raw Header size to the base to find the FSP INFO Header */ + fsp_ptr += sizeof(EFI_RAW_SECTION); + } else { + fsp_ptr = (u8 *)ERROR_NO_INFO_HEADER; + } + + /* Verify that the FSP is set to the base address we're expecting.*/ + if (((u32)fsp_ptr > 0xff) && + (*(u32*)(fsp_ptr + FSP_IMAGE_BASE_LOC) != CONFIG_FSP_LOC)) { + fsp_ptr = (u8 *)ERROR_IMAGEBASE_MISMATCH; + } + + /* Verify the FSP Signature */ + if (((u32)fsp_ptr > 0xff) && + (*(u32*)(fsp_ptr + FSP_IMAGE_SIG_LOC) != FSP_SIG)){ + fsp_ptr = (u8 *)ERROR_INFO_HEAD_SIG_MISMATCH; + } + + /* Verify the FSP ID */ + if (((u32)fsp_ptr > 0xff) && + ((*(u32 *)(fsp_ptr + FSP_IMAGE_ID_LOC) != FSP_IMAGE_ID_DWORD0) || + (*(u32 *)(fsp_ptr + (FSP_IMAGE_ID_LOC + 4)) != FSP_IMAGE_ID_DWORD1))) { + fsp_ptr = (u8 *)ERROR_FSP_SIG_MISMATCH; + } + + return (fsp_ptr); +} + +#ifndef __PRE_RAM__ /* Only parse HOB data in ramstage */ + +void print_fsp_info(void) { + + if (fsp_header_ptr == NULL) + fsp_header_ptr = (void *)find_fsp(); + if ((u32)fsp_header_ptr < 0xff) { + post_code(0x4F); /* output something in case there is no serial */ + die("Can't find the FSP!\n"); + } + + if (FspHobListPtr == NULL) { + FspHobListPtr = (void*)*((u32*) cbmem_find(CBMEM_ID_HOB_POINTER)); + } + + printk(BIOS_SPEW,"fsp_header_ptr: %p\n", fsp_header_ptr); + printk(BIOS_INFO,"FSP Header Version: %d\n", fsp_header_ptr->HeaderRevision); + printk(BIOS_INFO,"FSP Revision: %d.%d\n", + (u8)((fsp_header_ptr->ImageRevision >> 8) & 0xff), + (u8)(fsp_header_ptr->ImageRevision & 0xff)); +} + +static 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", + (long unsigned int)Hobmemaddr, (long unsigned int)Hobmemlength); +} + +static 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", + (long unsigned int)Hobresaddr, (long unsigned int)Hobreslength); +} + +static 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; +} + +/* 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; + } + } + + 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"); +} + +#if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE) +/** + * Save the FSP memory HOB (mrc data) to the MRC area in CBMEM + */ +int save_mrc_data(void *hob_start) +{ + 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; + + mrc_hob = GetNextGuidHob(&mrc_guid, hob_start); + if (mrc_hob == NULL){ + printk(BIOS_DEBUG, "Memory Configure Data Hob is not present\n"); + return(0); + } + + mrc_hob_data = GET_GUID_HOB_DATA (mrc_hob); + mrc_hob_size = (u32) GET_HOB_LENGTH(mrc_hob); + + printk(BIOS_DEBUG, "Memory Configure Data Hob at %p (size = 0x%x).\n", + (void *)mrc_hob_data, mrc_hob_size); + + output_len = ALIGN(mrc_hob_size, 16); + + /* Save the MRC S3/Fastboot/ADR restore data to cbmem */ + mrc_data = cbmem_add (CBMEM_ID_MRCDATA, + output_len + sizeof(struct mrc_data_container)); + + /* Just return if there was a problem with getting CBMEM */ + if (mrc_data == NULL) { + printk(BIOS_WARNING, "CBMEM was not available to save the fastboot 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); + + printk(BIOS_SPEW, "Fastboot data (includes align and checksum):\n"); + hexdump32(BIOS_SPEW, (void *)mrc_data->mrc_data, output_len); + return (1); +} +#endif /* CONFIG_ENABLE_FAST_BOOT */ + +static void find_fsp_hob_update_mrc(void *unused) +{ + /* Set the global HOB list pointer */ + FspHobListPtr = (void*)*((u32*) cbmem_find(CBMEM_ID_HOB_POINTER)); + + if (!FspHobListPtr){ + printk(BIOS_ERR, "ERROR: Could not find FSP HOB pointer in CBFS!\n"); + } else { + /* 0x0000: Print all types */ + print_hob_type_structure(0x000, FspHobListPtr); + + #if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE) + if(save_mrc_data(FspHobListPtr)) + update_mrc_cache(NULL); + else + printk(BIOS_DEBUG,"Not updating MRC data in flash.\n"); + #endif + } +} + +/* Update the MRC/Fastboot Cache as part of the late table writing stage */ +BOOT_STATE_INIT_ENTRIES(fsp_hob_find) = { + BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, + find_fsp_hob_update_mrc, NULL), +}; +#endif /* #ifndef __PRE_RAM__ */ diff --git a/src/lib/fsp/fsp_util.h b/src/lib/fsp/fsp_util.h new file mode 100644 index 0000000..eaf2d37 --- /dev/null +++ b/src/lib/fsp/fsp_util.h @@ -0,0 +1,95 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef FSP_UTIL_H +#define FSP_UTIL_H + +#include <chipset_fsp_util.h> + +#if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE) +int save_mrc_data(void *hob_start); +void * find_and_set_fastboot_cache(void); +#endif + +volatile u8 * find_fsp (void); +void fsp_early_init(FSP_INFO_HEADER *fsp_info); +void FspNotify(u32 Phase); +void FspNotifyReturnPoint(EFI_STATUS Status, VOID *HobListPtr); +void print_hob_type_structure(u16 Hobtype, void *Hoblistptr); +void romstage_fsp_rt_buffer_callback(FSP_INIT_RT_BUFFER *FspRtBuffer); +void print_fsp_info(void); + +void chipset_fsp_early_init(FSP_INIT_PARAMS *FspInitParams, + FSP_INFO_HEADER *fsp_ptr); +void ChipsetFspReturnPoint(EFI_STATUS Status, VOID *HobListPtr); + +/* Additional HOB types not included in the FSP: + * #define EFI_HOB_TYPE_HANDOFF 0x0001 + * #define EFI_HOB_TYPE_MEMORY_ALLOCATION 0x0002 + * #define EFI_HOB_TYPE_RESOURCE_DESCRIPTOR 0x0003 + * #define EFI_HOB_TYPE_GUID_EXTENSION 0x0004 + * #define EFI_HOB_TYPE_FV 0x0005 + * #define EFI_HOB_TYPE_CPU 0x0006 + * #define EFI_HOB_TYPE_MEMORY_POOL 0x0007 + * #define EFI_HOB_TYPE_CV 0x0008 + * #define EFI_HOB_TYPE_UNUSED 0xFFFE + * #define EFI_HOB_TYPE_END_OF_HOB_LIST 0xffff + */ +#define EFI_HOB_TYPE_HANDOFF 0x0001 +#define EFI_HOB_TYPE_MEMORY_POOL 0x0007 + +#if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE) +#define MRC_DATA_ALIGN 0x1000 +#define MRC_DATA_SIGNATURE (('M'<<0)|('R'<<8)|('C'<<16)|('D'<<24)) + +struct mrc_data_container { + u32 mrc_signature; // "MRCD" + u32 mrc_data_size; // Actual total size of this structure + u32 mrc_checksum; // IP style checksum + u32 reserved; // For header alignment + u8 mrc_data[0]; // Variable size, platform/run time dependent. +} __attribute__ ((packed)); + +struct mrc_data_container *find_current_mrc_cache(void); + +#if !defined(__PRE_RAM__) +void update_mrc_cache(void *unused); +#endif + +#endif + +/* The offset in bytes from the start of the info structure */ +#define FSP_IMAGE_SIG_LOC 0 +#define FSP_IMAGE_ID_LOC 16 +#define FSP_IMAGE_BASE_LOC 28 + +#define FSP_SIG 0x48505346 /* 'FSPH' */ + +#define ERROR_NO_FV_SIG 1 +#define ERROR_NO_FFS_GUID 2 +#define ERROR_NO_INFO_HEADER 3 +#define ERROR_IMAGEBASE_MISMATCH 4 +#define ERROR_INFO_HEAD_SIG_MISMATCH 5 +#define ERROR_FSP_SIG_MISMATCH 6 + +#ifndef __PRE_RAM__ +extern void *FspHobListPtr; +#endif + +#endif /* FSP_UTIL_H */