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Kernel/riscv64: Take the memory map from the FDT and dump it

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For this the BootInfo struct was made architecture specific
This commit is contained in:
Hendiadyoin1 2024-01-26 14:37:36 +01:00 • committed by Andrew Kaster
parent 21a21c6a11
commit d3f6b03733
10 changed files with 368 additions and 119 deletions
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25
Kernel/Arch/riscv64/CPU.cpp Normal file
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/*
* Copyright (c) 2024, Leon Albrecht <leon.a@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/riscv64/CPU.h>
#include <Kernel/Memory/MemoryManager.h>
#include <Userland/Libraries/LibDeviceTree/FlattenedDeviceTree.h>
#include <Userland/Libraries/LibDeviceTree/Validation.h>
namespace Kernel {
BootInfo s_boot_info;
alignas(PAGE_SIZE) __attribute__((section(".bss.fdt"))) u8 s_fdt_storage[fdt_storage_size];
void dump_fdt()
{
auto& header = *bit_cast<DeviceTree::FlattenedDeviceTreeHeader*>(&s_fdt_storage[0]);
auto fdt = ReadonlyBytes(s_fdt_storage, header.totalsize);
MUST(DeviceTree::dump(header, fdt));
}
}