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60c32f44dd
The problem was mostly in the initialization code, since in that stage the parser assumed that there is an identity mapping in the first 1MB of the address space. Now during initialization the parser will create the correct mappings to locate the required data.
68 lines
No EOL
2.7 KiB
C++
68 lines
No EOL
2.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <ACPI/ACPIParser.h>
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#include <AK/OwnPtr.h>
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class ACPIStaticParser : ACPIParser {
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public:
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static void initialize(ACPI_RAW::RSDPDescriptor20& rsdp);
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static void initialize_without_rsdp();
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static bool is_initialized();
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virtual ACPI_RAW::SDTHeader* find_table(const char* sig) override;
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virtual void do_acpi_reboot() override;
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virtual void do_acpi_shutdown() override;
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virtual bool is_operable() override { return m_operable; }
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protected:
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ACPIStaticParser();
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explicit ACPIStaticParser(ACPI_RAW::RSDPDescriptor20&);
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private:
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void locate_static_data();
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void locate_all_aml_tables();
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void locate_main_system_description_table();
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void initialize_main_system_description_table();
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size_t get_table_size(ACPI_RAW::SDTHeader&);
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u8 get_table_revision(ACPI_RAW::SDTHeader&);
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void init_fadt();
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ACPI_RAW::RSDPDescriptor20* search_rsdp_in_ebda(u16 ebda_segment);
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ACPI_RAW::RSDPDescriptor20* search_rsdp_in_bios_area();
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ACPI_RAW::RSDPDescriptor20* search_rsdp();
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// Early pointers that are needed really for initializtion only...
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ACPI_RAW::RSDPDescriptor20* m_rsdp;
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ACPI_RAW::SDTHeader* m_main_system_description_table;
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OwnPtr<ACPI::MainSystemDescriptionTable> m_main_sdt;
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OwnPtr<ACPI::FixedACPIData> m_fadt;
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Vector<ACPI_RAW::SDTHeader*> m_aml_tables_ptrs;
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bool m_xsdt_supported;
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}; |