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Kernel: Introduce the StorageManagement class
The StorageManagement class has 2 roles: 1. During boot, it should find all storage controllers in the machine, and then determine what is the boot device. 2. Later on boot, it is a registrar of all storage controllers and storage devices. Thus, it could be used to show information about these devices when implemented. This change allows the user to specify a boot driver other than /dev/hda and if it's connected in the machine - it will boot.
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4 changed files with 182 additions and 16 deletions
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Kernel/Storage/StorageManagement.h
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Kernel/Storage/StorageManagement.h
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/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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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 <AK/NonnullRefPtr.h>
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/Types.h>
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#include <Kernel/Storage/StorageController.h>
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#include <Kernel/Storage/StorageDevice.h>
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namespace Kernel {
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class StorageManagement {
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AK_MAKE_ETERNAL;
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public:
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StorageManagement(String root_device, bool force_pio);
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static bool initialized();
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static void initialize(String root_device, bool force_pio);
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static StorageManagement& the();
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NonnullRefPtr<StorageDevice> boot_device() const;
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NonnullRefPtrVector<StorageController> ide_controllers() const;
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NonnullRefPtrVector<StorageDevice> storage_devices() const;
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private:
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NonnullRefPtrVector<StorageController> enumerate_controllers(bool force_pio) const;
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NonnullRefPtr<StorageDevice> determine_boot_device(String root_device) const;
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NonnullRefPtrVector<StorageController> m_controllers;
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NonnullRefPtr<StorageDevice> m_boot_device;
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};
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}
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