9d475bf6de
The payload API of coreboot described in https://www.coreboot.org/Payload_API does not reflect the current handoff mechanism to hand the coreboot tables off. Therefore the arguments supplied by coreboot (cbtable) will currently never be parsed correctly and libpayload has to search for the coreboot tables by iterating through memory. This patch removes the old payload API implementation and just takes the coreboot table pointer from the first argument on the stack. Tested: started prodrive/atlas with coreinfo payload Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com> Change-Id: I51fb0cfc81043cbfe3fc9c8ea0776add2d6a42b2 Reviewed-on: https://review.coreboot.org/c/coreboot/+/74965 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/*
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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* Copyright (C) 2009 coresystems GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <libpayload-config.h>
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#include <libpayload.h>
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#include <coreboot_tables.h>
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/*
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* Some of this is x86 specific, and the rest of it is generic. Right now,
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* since we only support x86, we'll avoid trying to make lots of infrastructure
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* we don't need. If in the future, we want to use coreboot on some other
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* architecture, then take out the generic parsing code and move it elsewhere.
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*/
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/* === Parsing code === */
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/* This is the generic parsing code. */
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static void cb_parse_x86_rom_var_mtrr(void *ptr, struct sysinfo_t *info)
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{
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struct cb_x86_rom_mtrr *rom_mtrr = ptr;
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info->x86_rom_var_mtrr_index = rom_mtrr->index;
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}
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int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info)
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{
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switch(rec->tag) {
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case CB_TAG_X86_ROM_MTRR:
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cb_parse_x86_rom_var_mtrr(rec, info);
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break;
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default:
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return 0;
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}
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return 1;
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}
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/* This pointer gets set in head.S and is passed in from coreboot. */
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void *cb_header_ptr;
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int get_coreboot_info(struct sysinfo_t *info)
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{
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int ret;
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/* Ensure the variable range MTRR index covering the ROM is set to
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* an invalid value. */
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info->x86_rom_var_mtrr_index = -1;
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ret = cb_parse_header(cb_header_ptr, 1, info);
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if (ret)
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ret = cb_parse_header(phys_to_virt(0x00000000), 0x1000, info);
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if (ret)
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ret = cb_parse_header(phys_to_virt(0x000f0000), 0x1000, info);
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return ret;
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}
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